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From akuznet...@apache.org
Subject [23/64] [abbrv] [partial] ignite git commit: master - imports
Date Tue, 01 Sep 2015 03:32:17 GMT
http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsBlocksMessage.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsBlocksMessage.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsBlocksMessage.java
index 120745c..d1f5e4a 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsBlocksMessage.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsBlocksMessage.java
@@ -17,13 +17,14 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-
-import java.io.*;
-import java.nio.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.nio.ByteBuffer;
+import java.util.Map;
+import org.apache.ignite.internal.GridDirectMap;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.plugin.extensions.communication.MessageCollectionItemType;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
 
 /**
  * IGFS write blocks message.
@@ -170,4 +171,4 @@ public class IgfsBlocksMessage extends IgfsCommunicationMessage {
     @Override public byte fieldsCount() {
         return 3;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsClientSession.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsClientSession.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsClientSession.java
index db48064..943165e 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsClientSession.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsClientSession.java
@@ -17,12 +17,11 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.jetbrains.annotations.*;
-import org.jsr166.*;
-
-import java.io.*;
-import java.util.*;
-import java.util.concurrent.*;
+import java.io.Closeable;
+import java.util.Iterator;
+import java.util.concurrent.ConcurrentMap;
+import org.jetbrains.annotations.Nullable;
+import org.jsr166.ConcurrentHashMap8;
 
 /**
  * IGFS client session. Effectively used to manage lifecycle of opened resources and close them on
@@ -72,4 +71,4 @@ public class IgfsClientSession {
     public Iterator<Closeable> registeredResources() {
         return rsrcMap.values().iterator();
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsCommunicationMessage.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsCommunicationMessage.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsCommunicationMessage.java
index c2c24ca..412c45b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsCommunicationMessage.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsCommunicationMessage.java
@@ -17,12 +17,13 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.marshaller.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-import org.jetbrains.annotations.*;
-
-import java.nio.*;
+import java.nio.ByteBuffer;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.marshaller.Marshaller;
+import org.apache.ignite.plugin.extensions.communication.Message;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Base class for all IGFS communication messages sent between nodes.
@@ -76,4 +77,4 @@ public abstract class IgfsCommunicationMessage implements Message {
     @Override public byte fieldsCount() {
         return 0;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsContext.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsContext.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsContext.java
index 24b56d3..2b08f28 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsContext.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsContext.java
@@ -17,16 +17,17 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.jetbrains.annotations.*;
-
-import java.util.*;
-
-import static org.apache.ignite.internal.IgniteNodeAttributes.*;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.UUID;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.internal.GridKernalContext;
+import org.apache.ignite.internal.util.typedef.F;
+import org.jetbrains.annotations.Nullable;
+
+import static org.apache.ignite.internal.IgniteNodeAttributes.ATTR_IGFS;
 
 /**
  * IGFS context holding all required components for IGFS instance.
@@ -201,4 +202,4 @@ public class IgfsContext {
 
         return mgr;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDataManager.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDataManager.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDataManager.java
index 602924d..c571f41 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDataManager.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDataManager.java
@@ -17,44 +17,83 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cache.affinity.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.events.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.cluster.*;
-import org.apache.ignite.internal.managers.communication.*;
-import org.apache.ignite.internal.managers.eventstorage.*;
-import org.apache.ignite.internal.processors.cache.*;
-import org.apache.ignite.internal.processors.cache.transactions.*;
-import org.apache.ignite.internal.processors.datastreamer.*;
-import org.apache.ignite.internal.processors.task.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.lang.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.internal.util.worker.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.thread.*;
-import org.jetbrains.annotations.*;
-import org.jsr166.*;
-
-import javax.cache.processor.*;
-import java.io.*;
-import java.nio.*;
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.atomic.*;
-import java.util.concurrent.locks.*;
-
-import static org.apache.ignite.events.EventType.*;
-import static org.apache.ignite.internal.GridTopic.*;
-import static org.apache.ignite.internal.managers.communication.GridIoPolicy.*;
-import static org.apache.ignite.transactions.TransactionConcurrency.*;
-import static org.apache.ignite.transactions.TransactionIsolation.*;
+import java.io.DataInput;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import javax.cache.processor.EntryProcessor;
+import javax.cache.processor.MutableEntry;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteDataStreamer;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteInterruptedException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.cache.affinity.AffinityKeyMapper;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.events.DiscoveryEvent;
+import org.apache.ignite.events.Event;
+import org.apache.ignite.igfs.IgfsBlockLocation;
+import org.apache.ignite.igfs.IgfsException;
+import org.apache.ignite.igfs.IgfsGroupDataBlocksKeyMapper;
+import org.apache.ignite.igfs.IgfsOutOfSpaceException;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
+import org.apache.ignite.internal.IgniteFutureTimeoutCheckedException;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.IgniteInterruptedCheckedException;
+import org.apache.ignite.internal.cluster.ClusterTopologyCheckedException;
+import org.apache.ignite.internal.managers.communication.GridMessageListener;
+import org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener;
+import org.apache.ignite.internal.processors.cache.GridCacheAdapter;
+import org.apache.ignite.internal.processors.cache.IgniteInternalCache;
+import org.apache.ignite.internal.processors.cache.transactions.IgniteInternalTx;
+import org.apache.ignite.internal.processors.datastreamer.DataStreamerCacheUpdaters;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.util.future.GridFinishedFuture;
+import org.apache.ignite.internal.util.future.GridFutureAdapter;
+import org.apache.ignite.internal.util.lang.GridPlainCallable;
+import org.apache.ignite.internal.util.typedef.CI1;
+import org.apache.ignite.internal.util.typedef.CX1;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.internal.util.worker.GridWorker;
+import org.apache.ignite.lang.IgniteBiTuple;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.thread.IgniteThreadPoolExecutor;
+import org.jetbrains.annotations.Nullable;
+import org.jsr166.ConcurrentHashMap8;
+
+import static org.apache.ignite.events.EventType.EVT_NODE_FAILED;
+import static org.apache.ignite.events.EventType.EVT_NODE_LEFT;
+import static org.apache.ignite.internal.GridTopic.TOPIC_IGFS;
+import static org.apache.ignite.internal.managers.communication.GridIoPolicy.SYSTEM_POOL;
+import static org.apache.ignite.transactions.TransactionConcurrency.PESSIMISTIC;
+import static org.apache.ignite.transactions.TransactionIsolation.REPEATABLE_READ;
 
 /**
  * Cache based file's data container.
@@ -1883,4 +1922,4 @@ public class IgfsDataManager extends IgfsManager {
                 onDone(true);
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteMessage.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteMessage.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteMessage.java
index 8656745..ef3dd43 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteMessage.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteMessage.java
@@ -17,16 +17,16 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.marshaller.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.nio.*;
+import java.io.Externalizable;
+import java.nio.ByteBuffer;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.internal.GridDirectTransient;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.marshaller.Marshaller;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Indicates that entry scheduled for delete was actually deleted.
@@ -184,4 +184,4 @@ public class IgfsDeleteMessage extends IgfsCommunicationMessage {
     @Override public String toString() {
         return S.toString(IgfsDeleteMessage.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteWorker.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteWorker.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteWorker.java
index 1b2d3fe..98672e8 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteWorker.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsDeleteWorker.java
@@ -17,25 +17,31 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.events.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.cluster.*;
-import org.apache.ignite.internal.managers.communication.*;
-import org.apache.ignite.internal.managers.eventstorage.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.locks.*;
-
-import static org.apache.ignite.events.EventType.*;
-import static org.apache.ignite.internal.GridTopic.*;
-import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.*;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.events.IgfsEvent;
+import org.apache.ignite.internal.IgniteFutureCancelledCheckedException;
+import org.apache.ignite.internal.IgniteInterruptedCheckedException;
+import org.apache.ignite.internal.cluster.ClusterTopologyServerNotFoundException;
+import org.apache.ignite.internal.managers.communication.GridIoPolicy;
+import org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager;
+import org.apache.ignite.internal.util.future.GridCompoundFuture;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.LT;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteUuid;
+
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_PURGED;
+import static org.apache.ignite.internal.GridTopic.TOPIC_IGFS;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.TRASH_ID;
 
 /**
  * IGFS worker for removal from the trash directory.
@@ -346,4 +352,4 @@ public class IgfsDeleteWorker extends IgfsThread {
             }
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsEx.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsEx.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsEx.java
index 361f75f..8ff7247 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsEx.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsEx.java
@@ -17,14 +17,15 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.net.*;
+import java.net.URI;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystem;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Internal API extension for {@link org.apache.ignite.IgniteFileSystem}.
@@ -175,4 +176,4 @@ public interface IgfsEx extends IgniteFileSystem {
      * @return Secondary file system wrapper.
      */
     public IgfsSecondaryFileSystem asSecondary();
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileAffinityRange.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileAffinityRange.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileAffinityRange.java
index d18ea82..5f083b6 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileAffinityRange.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileAffinityRange.java
@@ -17,15 +17,22 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.nio.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.plugin.extensions.communication.Message;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Affinity range.
@@ -364,4 +371,4 @@ public class IgfsFileAffinityRange implements Message, Externalizable {
     @Override public String toString() {
         return S.toString(IgfsFileAffinityRange.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileImpl.java
index fddfa20..5d7389b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileImpl.java
@@ -17,13 +17,19 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.Collections;
+import java.util.Map;
+import org.apache.ignite.igfs.IgfsFile;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.typedef.internal.A;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * File or directory information.
@@ -249,4 +255,4 @@ public final class IgfsFileImpl implements IgfsFile, Externalizable {
     @Override public String toString() {
         return S.toString(IgfsFileImpl.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileInfo.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileInfo.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileInfo.java
index de7d077..116d585 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileInfo.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileInfo.java
@@ -17,17 +17,22 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.tostring.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.Collections;
+import java.util.Map;
+import java.util.UUID;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.GridLeanMap;
+import org.apache.ignite.internal.util.tostring.GridToStringInclude;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Unmodifiable file information.
@@ -567,4 +572,4 @@ public final class IgfsFileInfo implements Externalizable {
             return info;
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileMap.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileMap.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileMap.java
index 8f16ff2..2c0358b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileMap.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileMap.java
@@ -17,17 +17,21 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.internal.util.tostring.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
-
-import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.internal.util.tostring.GridToStringInclude;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
+
+import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.RANGE_STATUS_MOVED;
 
 /**
  * Auxiliary class that is responsible for managing file affinity keys allocation by ranges.
@@ -358,4 +362,4 @@ public class IgfsFileMap implements Externalizable {
     @Override public String toString() {
         return S.toString(IgfsFileMap.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileWorkerBatch.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileWorkerBatch.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileWorkerBatch.java
index 1a2f3cb..6bea187 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileWorkerBatch.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFileWorkerBatch.java
@@ -17,13 +17,15 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-
-import java.io.*;
-import java.util.concurrent.*;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.concurrent.BlockingDeque;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.future.GridFutureAdapter;
+import org.apache.ignite.internal.util.typedef.internal.U;
 
 /**
  * Work batch is an abstraction of the logically grouped tasks.
@@ -193,4 +195,4 @@ public abstract class IgfsFileWorkerBatch implements Runnable {
      * Callback invoked when execution finishes.
      */
     protected abstract void onDone();
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerManager.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerManager.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerManager.java
index 61949d7..773d758 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerManager.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerManager.java
@@ -17,30 +17,51 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.events.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.cluster.*;
-import org.apache.ignite.internal.managers.communication.*;
-import org.apache.ignite.internal.managers.eventstorage.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.internal.util.worker.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.thread.*;
-import org.jetbrains.annotations.*;
-
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.locks.*;
-
-import static java.util.concurrent.TimeUnit.*;
-import static org.apache.ignite.events.EventType.*;
-import static org.apache.ignite.internal.GridTopic.*;
-import static org.apache.ignite.internal.managers.communication.GridIoPolicy.*;
-import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.*;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.LinkedBlockingDeque;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.events.DiscoveryEvent;
+import org.apache.ignite.events.Event;
+import org.apache.ignite.internal.IgniteInterruptedCheckedException;
+import org.apache.ignite.internal.cluster.ClusterTopologyCheckedException;
+import org.apache.ignite.internal.managers.communication.GridMessageListener;
+import org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener;
+import org.apache.ignite.internal.util.GridConcurrentHashSet;
+import org.apache.ignite.internal.util.GridSpinReadWriteLock;
+import org.apache.ignite.internal.util.typedef.CX1;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.P1;
+import org.apache.ignite.internal.util.typedef.X;
+import org.apache.ignite.internal.util.typedef.internal.LT;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.internal.util.worker.GridWorker;
+import org.apache.ignite.lang.IgniteBiTuple;
+import org.apache.ignite.lang.IgniteClosure;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.thread.IgniteThread;
+import org.jetbrains.annotations.Nullable;
+
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static org.apache.ignite.events.EventType.EVT_NODE_FAILED;
+import static org.apache.ignite.events.EventType.EVT_NODE_LEFT;
+import static org.apache.ignite.internal.GridTopic.TOPIC_IGFS;
+import static org.apache.ignite.internal.managers.communication.GridIoPolicy.SYSTEM_POOL;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.RANGE_STATUS_INITIAL;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.RANGE_STATUS_MOVED;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileAffinityRange.RANGE_STATUS_MOVING;
 
 /**
  * IGFS fragmentizer manager.
@@ -828,4 +849,4 @@ public class IgfsFragmentizerManager extends IgfsManager {
             return this == o;
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerRequest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerRequest.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerRequest.java
index cf657e3..75d77bd 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerRequest.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerRequest.java
@@ -17,15 +17,16 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.util.tostring.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-
-import java.io.*;
-import java.nio.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.nio.ByteBuffer;
+import java.util.Collection;
+import org.apache.ignite.internal.GridDirectCollection;
+import org.apache.ignite.internal.util.tostring.GridToStringInclude;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.plugin.extensions.communication.MessageCollectionItemType;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
 
 /**
  * Fragmentizer request. Sent from coordinator to other IGFS nodes when colocated part of file
@@ -151,4 +152,4 @@ public class IgfsFragmentizerRequest extends IgfsCommunicationMessage {
     @Override public byte fieldsCount() {
         return 2;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerResponse.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerResponse.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerResponse.java
index 6dd7534..b0f8a6b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerResponse.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsFragmentizerResponse.java
@@ -17,11 +17,11 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.lang.*;
-import org.apache.ignite.plugin.extensions.communication.*;
-
-import java.io.*;
-import java.nio.*;
+import java.io.Externalizable;
+import java.nio.ByteBuffer;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.plugin.extensions.communication.MessageReader;
+import org.apache.ignite.plugin.extensions.communication.MessageWriter;
 
 /**
  * Fragmentizer response.
@@ -113,4 +113,4 @@ public class IgfsFragmentizerResponse extends IgfsCommunicationMessage {
     @Override public byte fieldsCount() {
         return 1;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHandshakeResponse.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHandshakeResponse.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHandshakeResponse.java
index 61efe32..1ba98ac 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHandshakeResponse.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHandshakeResponse.java
@@ -17,9 +17,11 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.util.typedef.internal.*;
-
-import java.io.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import org.apache.ignite.internal.util.typedef.internal.U;
 
 /**
  * Handshake message.
@@ -119,4 +121,4 @@ public class IgfsHandshakeResponse implements Externalizable {
         if (in.readBoolean())
             sampling = in.readBoolean();
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelper.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelper.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelper.java
index 4795478..094c241 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelper.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelper.java
@@ -17,8 +17,8 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.configuration.*;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.configuration.CacheConfiguration;
 
 /**
  * IGFS utility processor adapter.
@@ -46,4 +46,4 @@ public interface IgfsHelper {
      * @return {@code True} if IGFS block key.
      */
     public abstract boolean isIgfsBlockKey(Object key);
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelperImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelperImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelperImpl.java
index f15e0df..29e75a5 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelperImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsHelperImpl.java
@@ -17,11 +17,13 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cache.eviction.*;
-import org.apache.ignite.cache.eviction.igfs.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.cache.eviction.EvictionFilter;
+import org.apache.ignite.cache.eviction.EvictionPolicy;
+import org.apache.ignite.cache.eviction.igfs.IgfsEvictionFilter;
+import org.apache.ignite.cache.eviction.igfs.IgfsPerBlockLruEvictionPolicy;
+import org.apache.ignite.configuration.CacheConfiguration;
+import org.apache.ignite.internal.util.typedef.internal.U;
 
 /**
  * IGFS utils processor.
@@ -52,4 +54,4 @@ public class IgfsHelperImpl implements IgfsHelper {
     @Override public boolean isIgfsBlockKey(Object key) {
         return key instanceof IgfsBlockKey;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsImpl.java
index c3495e9..695db38 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsImpl.java
@@ -17,42 +17,104 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cache.eviction.*;
-import org.apache.ignite.cache.eviction.igfs.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.compute.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.events.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.mapreduce.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.managers.communication.*;
-import org.apache.ignite.internal.managers.eventstorage.*;
-import org.apache.ignite.internal.processors.task.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.typedef.*;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicLong;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.cache.eviction.EvictionPolicy;
+import org.apache.ignite.cache.eviction.igfs.IgfsPerBlockLruEvictionPolicy;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.compute.ComputeJob;
+import org.apache.ignite.compute.ComputeJobAdapter;
+import org.apache.ignite.compute.ComputeJobResult;
+import org.apache.ignite.compute.ComputeJobResultPolicy;
+import org.apache.ignite.compute.ComputeTaskSplitAdapter;
+import org.apache.ignite.configuration.CacheConfiguration;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.events.DiscoveryEvent;
+import org.apache.ignite.events.Event;
+import org.apache.ignite.events.IgfsEvent;
+import org.apache.ignite.igfs.IgfsBlockLocation;
+import org.apache.ignite.igfs.IgfsDirectoryNotEmptyException;
+import org.apache.ignite.igfs.IgfsFile;
+import org.apache.ignite.igfs.IgfsInvalidPathException;
+import org.apache.ignite.igfs.IgfsMetrics;
+import org.apache.ignite.igfs.IgfsMode;
+import org.apache.ignite.igfs.IgfsOutputStream;
+import org.apache.ignite.igfs.IgfsParentNotDirectoryException;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.IgfsPathAlreadyExistsException;
+import org.apache.ignite.igfs.IgfsPathIsDirectoryException;
+import org.apache.ignite.igfs.IgfsPathNotFoundException;
+import org.apache.ignite.igfs.IgfsPathSummary;
+import org.apache.ignite.igfs.mapreduce.IgfsRecordResolver;
+import org.apache.ignite.igfs.mapreduce.IgfsTask;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystem;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.IgniteKernal;
+import org.apache.ignite.internal.managers.communication.GridMessageListener;
+import org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager;
+import org.apache.ignite.internal.managers.eventstorage.GridLocalEventListener;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.util.GridSpinBusyLock;
+import org.apache.ignite.internal.util.future.GridCompoundFuture;
+import org.apache.ignite.internal.util.future.GridFinishedFuture;
+import org.apache.ignite.internal.util.future.GridFutureAdapter;
+import org.apache.ignite.internal.util.typedef.C1;
+import org.apache.ignite.internal.util.typedef.F;
 import org.apache.ignite.internal.util.typedef.T2;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.apache.ignite.resources.*;
-import org.apache.ignite.thread.*;
-import org.jetbrains.annotations.*;
-import org.jsr166.*;
-
-import java.io.*;
-import java.net.*;
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.atomic.*;
-
-import static org.apache.ignite.events.EventType.*;
-import static org.apache.ignite.igfs.IgfsMode.*;
-import static org.apache.ignite.internal.GridTopic.*;
-import static org.apache.ignite.internal.IgniteNodeAttributes.*;
-import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.*;
+import org.apache.ignite.internal.util.typedef.internal.A;
+import org.apache.ignite.internal.util.typedef.internal.LT;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteBiTuple;
+import org.apache.ignite.lang.IgniteFuture;
+import org.apache.ignite.lang.IgniteUuid;
+import org.apache.ignite.resources.IgniteInstanceResource;
+import org.apache.ignite.thread.IgniteThreadPoolExecutor;
+import org.jetbrains.annotations.Nullable;
+import org.jsr166.ConcurrentHashMap8;
+
+import static org.apache.ignite.events.EventType.EVT_IGFS_DIR_CREATED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_DIR_DELETED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_DIR_RENAMED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_CLOSED_READ;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_CLOSED_WRITE;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_CREATED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_DELETED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_OPENED_READ;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_OPENED_WRITE;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_RENAMED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_META_UPDATED;
+import static org.apache.ignite.events.EventType.EVT_NODE_FAILED;
+import static org.apache.ignite.events.EventType.EVT_NODE_LEFT;
+import static org.apache.ignite.igfs.IgfsMode.DUAL_ASYNC;
+import static org.apache.ignite.igfs.IgfsMode.DUAL_SYNC;
+import static org.apache.ignite.igfs.IgfsMode.PRIMARY;
+import static org.apache.ignite.igfs.IgfsMode.PROXY;
+import static org.apache.ignite.internal.GridTopic.TOPIC_IGFS;
+import static org.apache.ignite.internal.IgniteNodeAttributes.ATTR_IGFS;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.ROOT_ID;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.TRASH_ID;
 
 /**
  * Cache-based IGFS implementation.
@@ -2140,4 +2202,4 @@ public final class IgfsImpl implements IgfsEx {
             return t;
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamAdapter.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamAdapter.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamAdapter.java
index fc333b5..afcece7 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamAdapter.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamAdapter.java
@@ -17,10 +17,9 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-
-import java.io.*;
+import java.io.IOException;
+import org.apache.ignite.igfs.IgfsInputStream;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
 
 /**
  * Implementation adapter providing necessary methods.
@@ -48,4 +47,4 @@ public abstract class IgfsInputStreamAdapter extends IgfsInputStream
      * @throws IOException If read failed.
      */
     public abstract byte[][] readChunks(long pos, int len) throws IOException;
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamDescriptor.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamDescriptor.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamDescriptor.java
index 7a98fb9..ac42d44 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamDescriptor.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamDescriptor.java
@@ -17,7 +17,10 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import java.io.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
 
 /**
  * IGFS input stream descriptor - includes stream id and length.
@@ -75,4 +78,4 @@ public class IgfsInputStreamDescriptor implements Externalizable {
         streamId = in.readLong();
         len = in.readLong();
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamImpl.java
index 6c35032..62f8034 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInputStreamImpl.java
@@ -17,19 +17,30 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
-import java.util.concurrent.*;
-import java.util.concurrent.locks.*;
+import java.io.EOFException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.igfs.IgfsCorruptedFileException;
+import org.apache.ignite.igfs.IgfsInputStream;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.IgfsPathNotFoundException;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.util.GridConcurrentHashSet;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteInClosure;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Input stream to read data from grid cache with separate blocks.
@@ -531,4 +542,4 @@ public class IgfsInputStreamImpl extends IgfsInputStreamAdapter {
     @Override public String toString() {
         return S.toString(IgfsInputStreamImpl.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInvalidRangeException.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInvalidRangeException.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInvalidRangeException.java
index 8126487..cd93278 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInvalidRangeException.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsInvalidRangeException.java
@@ -17,7 +17,7 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
+import org.apache.ignite.IgniteCheckedException;
 
 /**
  * Internal exception thrown when attempted to update range that is no longer present
@@ -40,4 +40,4 @@ public class IgfsInvalidRangeException extends IgniteCheckedException {
     public IgfsInvalidRangeException(Throwable cause) {
         super(cause);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsIpcHandler.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsIpcHandler.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsIpcHandler.java
index cfe6ed4..0ed7c0d 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsIpcHandler.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsIpcHandler.java
@@ -17,21 +17,34 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.igfs.common.*;
-import org.apache.ignite.internal.processors.closure.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.lang.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
-import java.util.concurrent.atomic.*;
+import java.io.Closeable;
+import java.io.DataInput;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.concurrent.atomic.AtomicLong;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.igfs.IgfsOutOfSpaceException;
+import org.apache.ignite.igfs.IgfsOutputStream;
+import org.apache.ignite.igfs.IgfsUserContext;
+import org.apache.ignite.internal.GridKernalContext;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.igfs.common.IgfsControlResponse;
+import org.apache.ignite.internal.igfs.common.IgfsHandshakeRequest;
+import org.apache.ignite.internal.igfs.common.IgfsIpcCommand;
+import org.apache.ignite.internal.igfs.common.IgfsMessage;
+import org.apache.ignite.internal.igfs.common.IgfsPathControlRequest;
+import org.apache.ignite.internal.igfs.common.IgfsStreamControlRequest;
+import org.apache.ignite.internal.processors.closure.GridClosurePolicy;
+import org.apache.ignite.internal.util.future.GridFinishedFuture;
+import org.apache.ignite.internal.util.lang.GridPlainCallable;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.X;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteOutClosure;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * IGFS IPC handler.
@@ -569,4 +582,4 @@ class IgfsIpcHandler implements IgfsServerHandler {
     @Nullable private Closeable resource(IgfsClientSession ses, Long rsrcId) {
         return ses.resource(rsrcId);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsJobImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsJobImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsJobImpl.java
index fa90e21..d9d68ac 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsJobImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsJobImpl.java
@@ -17,14 +17,20 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.compute.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.mapreduce.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.resources.*;
-
-import java.io.*;
+import java.io.IOException;
+import org.apache.ignite.Ignite;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.compute.ComputeJob;
+import org.apache.ignite.igfs.IgfsInputStream;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.mapreduce.IgfsFileRange;
+import org.apache.ignite.igfs.mapreduce.IgfsJob;
+import org.apache.ignite.igfs.mapreduce.IgfsRecordResolver;
+import org.apache.ignite.internal.GridInternalWrapper;
+import org.apache.ignite.resources.IgniteInstanceResource;
+import org.apache.ignite.resources.LoggerResource;
 
 /**
  * IGFS job implementation.
@@ -114,4 +120,4 @@ public class IgfsJobImpl implements ComputeJob, GridInternalWrapper<IgfsJob> {
     @Override public IgfsJob userObject() {
         return job;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsListingEntry.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsListingEntry.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsListingEntry.java
index 508b52a..1cdc8a9 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsListingEntry.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsListingEntry.java
@@ -17,11 +17,14 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-
-import java.io.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.Map;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteUuid;
 
 /**
  * Directory listing entry.
@@ -194,4 +197,4 @@ public class IgfsListingEntry implements Externalizable {
     @Override public String toString() {
         return S.toString(IgfsListingEntry.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsLocalMetrics.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsLocalMetrics.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsLocalMetrics.java
index d715e9a..8245bbd 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsLocalMetrics.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsLocalMetrics.java
@@ -17,9 +17,9 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.lang.*;
-import org.jsr166.*;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.lang.IgniteBiTuple;
+import org.jsr166.LongAdder8;
 
 /**
  * Value object holding all local IGFS metrics which cannot be determined using file system traversal.
@@ -209,4 +209,4 @@ public class IgfsLocalMetrics {
         bytesRead = F.t(new LongAdder8(), new LongAdder8());
         bytesWritten = F.t(new LongAdder8(), new LongAdder8());
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsManager.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsManager.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsManager.java
index b33ee15..1217d0b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsManager.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsManager.java
@@ -17,9 +17,9 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-
-import java.util.concurrent.atomic.*;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteLogger;
 
 /**
  * Abstract class for IGFS managers.
@@ -152,4 +152,4 @@ public abstract class IgfsManager {
     protected String kernalStopInfo() {
         return "Cache manager received onKernalStop() callback: " + getClass().getSimpleName();
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetaManager.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetaManager.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetaManager.java
index aabe503..5611f33 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetaManager.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetaManager.java
@@ -17,34 +17,75 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.events.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.managers.eventstorage.*;
-import org.apache.ignite.internal.processors.affinity.*;
-import org.apache.ignite.internal.processors.cache.*;
-import org.apache.ignite.internal.processors.cache.transactions.*;
-import org.apache.ignite.internal.processors.task.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.lang.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import javax.cache.processor.*;
-import java.io.*;
-import java.util.*;
-import java.util.concurrent.*;
-
-import static org.apache.ignite.events.EventType.*;
-import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.*;
-import static org.apache.ignite.transactions.TransactionConcurrency.*;
-import static org.apache.ignite.transactions.TransactionIsolation.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.concurrent.CountDownLatch;
+import javax.cache.processor.EntryProcessor;
+import javax.cache.processor.MutableEntry;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteInterruptedException;
+import org.apache.ignite.IgniteLogger;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.events.IgfsEvent;
+import org.apache.ignite.igfs.IgfsConcurrentModificationException;
+import org.apache.ignite.igfs.IgfsDirectoryNotEmptyException;
+import org.apache.ignite.igfs.IgfsException;
+import org.apache.ignite.igfs.IgfsFile;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.IgfsPathAlreadyExistsException;
+import org.apache.ignite.igfs.IgfsPathIsDirectoryException;
+import org.apache.ignite.igfs.IgfsPathIsNotDirectoryException;
+import org.apache.ignite.igfs.IgfsPathNotFoundException;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystem;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.IgniteInterruptedCheckedException;
+import org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager;
+import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion;
+import org.apache.ignite.internal.processors.cache.GridCacheInternal;
+import org.apache.ignite.internal.processors.cache.IgniteInternalCache;
+import org.apache.ignite.internal.processors.cache.transactions.IgniteInternalTx;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.util.GridLeanMap;
+import org.apache.ignite.internal.util.GridSpinBusyLock;
+import org.apache.ignite.internal.util.lang.GridClosureException;
+import org.apache.ignite.internal.util.lang.IgniteOutClosureX;
+import org.apache.ignite.internal.util.typedef.CI1;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.LT;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteClosure;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
+
+import static org.apache.ignite.events.EventType.EVT_IGFS_DIR_CREATED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_DIR_RENAMED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_CREATED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_DELETED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_PURGED;
+import static org.apache.ignite.events.EventType.EVT_IGFS_FILE_RENAMED;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.ROOT_ID;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.TRASH_ID;
+import static org.apache.ignite.internal.processors.igfs.IgfsFileInfo.builder;
+import static org.apache.ignite.transactions.TransactionConcurrency.PESSIMISTIC;
+import static org.apache.ignite.transactions.TransactionIsolation.REPEATABLE_READ;
 
 /**
  * Cache based structure (meta data) manager.
@@ -3026,4 +3067,4 @@ public class IgfsMetaManager extends IgfsManager {
             return S.toString(UpdatePath.class, this);
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetricsAdapter.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetricsAdapter.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetricsAdapter.java
index 41e296e..c8ad049 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetricsAdapter.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsMetricsAdapter.java
@@ -17,10 +17,12 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-
-import java.io.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import org.apache.ignite.igfs.IgfsMetrics;
+import org.apache.ignite.internal.util.typedef.internal.S;
 
 /**
  * IGFS metrics adapter.
@@ -236,4 +238,4 @@ public class IgfsMetricsAdapter implements IgfsMetrics, Externalizable {
     @Override public String toString() {
         return S.toString(IgfsMetricsAdapter.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsModeResolver.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsModeResolver.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsModeResolver.java
index fd0c485..70da103 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsModeResolver.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsModeResolver.java
@@ -17,12 +17,18 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.jetbrains.annotations.*;
-
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import org.apache.ignite.igfs.IgfsMode;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.GridBoundedConcurrentLinkedHashMap;
+import org.apache.ignite.internal.util.typedef.T2;
+import org.jetbrains.annotations.Nullable;
 
 /**
  *
@@ -174,4 +180,4 @@ public class IgfsModeResolver {
         // Path and prefix components had same length and all of them matched.
         return true;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopHelper.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopHelper.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopHelper.java
index ca83145..492927b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopHelper.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopHelper.java
@@ -17,8 +17,8 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.configuration.*;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.configuration.CacheConfiguration;
 
 /**
  * No-op utils processor adapter.
@@ -38,4 +38,4 @@ public class IgfsNoopHelper implements IgfsHelper {
     @Override public boolean isIgfsBlockKey(Object key) {
         return false;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopProcessor.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopProcessor.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopProcessor.java
index 41dcc31..08eef8a 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopProcessor.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsNoopProcessor.java
@@ -17,16 +17,17 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.compute.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.mapreduce.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.util.ipc.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.jetbrains.annotations.*;
-
-import java.util.*;
+import java.util.Collection;
+import java.util.Collections;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.compute.ComputeJob;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.mapreduce.IgfsJob;
+import org.apache.ignite.igfs.mapreduce.IgfsRecordResolver;
+import org.apache.ignite.internal.GridKernalContext;
+import org.apache.ignite.internal.util.ipc.IpcServerEndpoint;
+import org.apache.ignite.internal.util.typedef.X;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Nop Ignite file system processor implementation.
@@ -68,4 +69,4 @@ public class IgfsNoopProcessor extends IgfsProcessorAdapter {
         long start, long length, IgfsRecordResolver recRslv) {
         return null;
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamAdapter.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamAdapter.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamAdapter.java
index 6edc209..43de61e 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamAdapter.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamAdapter.java
@@ -17,13 +17,15 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.nio.*;
+import java.io.DataInput;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.igfs.IgfsOutputStream;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.typedef.internal.A;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Output stream to store data into grid cache with separate blocks.
@@ -260,4 +262,4 @@ abstract class IgfsOutputStreamAdapter extends IgfsOutputStream {
     @Override public String toString() {
         return S.toString(IgfsOutputStreamAdapter.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamImpl.java
index 01359b5..c297eed 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsOutputStreamImpl.java
@@ -17,20 +17,30 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.processors.task.*;
-import org.apache.ignite.internal.util.future.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.nio.*;
-import java.util.concurrent.atomic.*;
-
-import static org.apache.ignite.igfs.IgfsMode.*;
+import java.io.DataInput;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.nio.ByteBuffer;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.igfs.IgfsException;
+import org.apache.ignite.igfs.IgfsMode;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.IgfsPathNotFoundException;
+import org.apache.ignite.internal.IgniteInternalFuture;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.util.future.GridFutureAdapter;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteClosure;
+import org.apache.ignite.lang.IgniteUuid;
+import org.jetbrains.annotations.Nullable;
+
+import static org.apache.ignite.igfs.IgfsMode.DUAL_SYNC;
+import static org.apache.ignite.igfs.IgfsMode.PRIMARY;
+import static org.apache.ignite.igfs.IgfsMode.PROXY;
 
 /**
  * Output stream to store data into grid cache with separate blocks.
@@ -502,4 +512,4 @@ class IgfsOutputStreamImpl extends IgfsOutputStreamAdapter {
             return S.toString(ReserveSpaceClosure.class, this);
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsPaths.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsPaths.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsPaths.java
index d1dd576..fbf89ce 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsPaths.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsPaths.java
@@ -17,13 +17,18 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import org.apache.ignite.igfs.IgfsMode;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.internal.util.typedef.T2;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Description of path modes.
@@ -121,4 +126,4 @@ public class IgfsPaths implements Externalizable {
             }
         }
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessor.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessor.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessor.java
index f3522a8..5b8cf86 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessor.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessor.java
@@ -17,31 +17,48 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.cache.affinity.*;
-import org.apache.ignite.cluster.*;
-import org.apache.ignite.compute.*;
-import org.apache.ignite.configuration.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.mapreduce.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.processors.query.*;
-import org.apache.ignite.internal.util.ipc.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-import org.apache.ignite.lang.*;
-import org.jetbrains.annotations.*;
-import org.jsr166.*;
-
-import java.util.*;
-import java.util.concurrent.*;
-
-import static org.apache.ignite.IgniteSystemProperties.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentMap;
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.cache.affinity.AffinityKeyMapper;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.compute.ComputeJob;
+import org.apache.ignite.configuration.CacheConfiguration;
+import org.apache.ignite.configuration.FileSystemConfiguration;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.igfs.IgfsGroupDataBlocksKeyMapper;
+import org.apache.ignite.igfs.IgfsMode;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.mapreduce.IgfsJob;
+import org.apache.ignite.igfs.mapreduce.IgfsRecordResolver;
+import org.apache.ignite.internal.GridKernalContext;
+import org.apache.ignite.internal.IgniteNodeAttributes;
+import org.apache.ignite.internal.processors.query.GridQueryProcessor;
+import org.apache.ignite.internal.util.ipc.IpcServerEndpoint;
+import org.apache.ignite.internal.util.typedef.C1;
+import org.apache.ignite.internal.util.typedef.CI1;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.X;
+import org.apache.ignite.internal.util.typedef.internal.U;
+import org.apache.ignite.lang.IgniteClosure;
+import org.jetbrains.annotations.Nullable;
+import org.jsr166.ConcurrentHashMap8;
+
+import static org.apache.ignite.IgniteSystemProperties.IGNITE_SKIP_CONFIGURATION_CONSISTENCY_CHECK;
+import static org.apache.ignite.IgniteSystemProperties.getBoolean;
 import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL;
-import static org.apache.ignite.cache.CacheMemoryMode.*;
-import static org.apache.ignite.cache.CacheMode.*;
-import static org.apache.ignite.igfs.IgfsMode.*;
-import static org.apache.ignite.internal.IgniteNodeAttributes.*;
+import static org.apache.ignite.cache.CacheMemoryMode.OFFHEAP_VALUES;
+import static org.apache.ignite.igfs.IgfsMode.PROXY;
+import static org.apache.ignite.internal.IgniteNodeAttributes.ATTR_IGFS;
 
 /**
  * Fully operational Ignite file system processor.
@@ -424,4 +441,4 @@ public class IgfsProcessor extends IgfsProcessorAdapter {
                 ", loc" + propName + "=" + locVal +
                 ", ggfName=" + igfsName + ']');
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessorAdapter.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessorAdapter.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessorAdapter.java
index ee38ab3..6648c7f 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessorAdapter.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsProcessorAdapter.java
@@ -17,16 +17,16 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.compute.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.mapreduce.*;
-import org.apache.ignite.internal.*;
-import org.apache.ignite.internal.processors.*;
-import org.apache.ignite.internal.util.ipc.*;
-import org.jetbrains.annotations.*;
-
-import java.util.*;
+import java.util.Collection;
+import org.apache.ignite.IgniteFileSystem;
+import org.apache.ignite.compute.ComputeJob;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.mapreduce.IgfsJob;
+import org.apache.ignite.igfs.mapreduce.IgfsRecordResolver;
+import org.apache.ignite.internal.GridKernalContext;
+import org.apache.ignite.internal.processors.GridProcessorAdapter;
+import org.apache.ignite.internal.util.ipc.IpcServerEndpoint;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Ignite file system processor adapter.
@@ -77,4 +77,4 @@ public abstract class IgfsProcessorAdapter extends GridProcessorAdapter {
      */
     @Nullable public abstract ComputeJob createJob(IgfsJob job, @Nullable String igfsName, IgfsPath path,
         long start, long length, IgfsRecordResolver recRslv);
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSamplingKey.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSamplingKey.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSamplingKey.java
index 439c8ce..52c9e0c 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSamplingKey.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSamplingKey.java
@@ -17,11 +17,14 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.internal.processors.cache.*;
-import org.apache.ignite.internal.util.typedef.*;
-import org.apache.ignite.internal.util.typedef.internal.*;
-
-import java.io.*;
+import java.io.Externalizable;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import org.apache.ignite.internal.processors.cache.GridCacheInternal;
+import org.apache.ignite.internal.util.typedef.F;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
 
 /**
  * Internal key used to track if sampling enabled or disabled for particular IGFS instance.
@@ -80,4 +83,4 @@ class IgfsSamplingKey implements GridCacheInternal, Externalizable {
     @Override public String toString() {
         return S.toString(IgfsSamplingKey.class, this);
     }
-}
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/90e9555c/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSecondaryFileSystemImpl.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSecondaryFileSystemImpl.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSecondaryFileSystemImpl.java
index 44ee90f..23d6322 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSecondaryFileSystemImpl.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/igfs/IgfsSecondaryFileSystemImpl.java
@@ -17,13 +17,16 @@
 
 package org.apache.ignite.internal.processors.igfs;
 
-import org.apache.ignite.*;
-import org.apache.ignite.igfs.*;
-import org.apache.ignite.igfs.secondary.*;
-import org.jetbrains.annotations.*;
-
-import java.io.*;
-import java.util.*;
+import java.io.OutputStream;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.igfs.IgfsFile;
+import org.apache.ignite.igfs.IgfsPath;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystem;
+import org.apache.ignite.igfs.secondary.IgfsSecondaryFileSystemPositionedReadable;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Secondary file system over native IGFS.
@@ -123,4 +126,4 @@ class IgfsSecondaryFileSystemImpl implements IgfsSecondaryFileSystem {
     @Override public void close() throws IgniteException {
         // No-op.
     }
-}
+}
\ No newline at end of file


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