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From ka...@apache.org
Subject [37/41] hadoop git commit: HDFS-7384. getfacl command and getAclStatus output should be in sync. Contributed by Vinayakumar B.
Date Tue, 09 Dec 2014 03:31:31 GMT
HDFS-7384. getfacl command and getAclStatus output should be in sync. Contributed by Vinayakumar
B.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/ffe942b8
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/ffe942b8
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/ffe942b8

Branch: refs/heads/YARN-2139
Commit: ffe942b82c1208bc7b22899da3a233944cb5ab52
Parents: 144da2e
Author: cnauroth <cnauroth@apache.org>
Authored: Mon Dec 8 10:23:09 2014 -0800
Committer: cnauroth <cnauroth@apache.org>
Committed: Mon Dec 8 10:23:09 2014 -0800

----------------------------------------------------------------------
 .../apache/hadoop/fs/permission/AclEntry.java   |  4 +-
 .../apache/hadoop/fs/permission/AclStatus.java  | 79 +++++++++++++++++++-
 .../org/apache/hadoop/fs/shell/AclCommands.java | 32 ++++----
 hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt     |  3 +
 .../apache/hadoop/hdfs/protocolPB/PBHelper.java | 19 +++--
 .../hadoop/hdfs/server/namenode/FSDirAclOp.java |  4 +-
 .../tools/offlineImageViewer/FSImageLoader.java | 31 +++-----
 .../org/apache/hadoop/hdfs/web/JsonUtil.java    | 17 ++++-
 .../hadoop-hdfs/src/main/proto/acl.proto        |  1 +
 .../hadoop-hdfs/src/site/apt/WebHDFS.apt.vm     |  1 +
 .../hdfs/server/namenode/FSAclBaseTest.java     | 46 ++++++++++++
 .../src/test/resources/testAclCLI.xml           | 53 +++++++++++++
 12 files changed, 246 insertions(+), 44 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclEntry.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclEntry.java
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclEntry.java
index b65b7a0..b9def64 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclEntry.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclEntry.java
@@ -146,7 +146,9 @@ public class AclEntry {
      * @return Builder this builder, for call chaining
      */
     public Builder setName(String name) {
-      this.name = name;
+      if (name != null && !name.isEmpty()) {
+        this.name = name;
+      }
       return this;
     }
 

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclStatus.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclStatus.java
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclStatus.java
index 4a7258f..9d7500a 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclStatus.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/AclStatus.java
@@ -23,6 +23,7 @@ import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
 
 import com.google.common.base.Objects;
+import com.google.common.base.Preconditions;
 import com.google.common.collect.Lists;
 
 /**
@@ -36,6 +37,7 @@ public class AclStatus {
   private final String group;
   private final boolean stickyBit;
   private final List<AclEntry> entries;
+  private final FsPermission permission;
 
   /**
    * Returns the file owner.
@@ -73,6 +75,14 @@ public class AclStatus {
     return entries;
   }
 
+  /**
+   * Returns the permission set for the path
+   * @return {@link FsPermission} for the path
+   */
+  public FsPermission getPermission() {
+    return permission;
+  }
+
   @Override
   public boolean equals(Object o) {
     if (o == null) {
@@ -113,6 +123,7 @@ public class AclStatus {
     private String group;
     private boolean stickyBit;
     private List<AclEntry> entries = Lists.newArrayList();
+    private FsPermission permission = null;
 
     /**
      * Sets the file owner.
@@ -173,12 +184,21 @@ public class AclStatus {
     }
 
     /**
+     * Sets the permission for the file.
+     * @param permission
+     */
+    public Builder setPermission(FsPermission permission) {
+      this.permission = permission;
+      return this;
+    }
+
+    /**
      * Builds a new AclStatus populated with the set properties.
      *
      * @return AclStatus new AclStatus
      */
     public AclStatus build() {
-      return new AclStatus(owner, group, stickyBit, entries);
+      return new AclStatus(owner, group, stickyBit, entries, permission);
     }
   }
 
@@ -190,12 +210,67 @@ public class AclStatus {
    * @param group String file group
    * @param stickyBit the sticky bit
    * @param entries the ACL entries
+   * @param permission permission of the path
    */
   private AclStatus(String owner, String group, boolean stickyBit,
-      Iterable<AclEntry> entries) {
+      Iterable<AclEntry> entries, FsPermission permission) {
     this.owner = owner;
     this.group = group;
     this.stickyBit = stickyBit;
     this.entries = Lists.newArrayList(entries);
+    this.permission = permission;
+  }
+
+  /**
+   * Get the effective permission for the AclEntry
+   * @param entry AclEntry to get the effective action
+   */
+  public FsAction getEffectivePermission(AclEntry entry) {
+    return getEffectivePermission(entry, permission);
+  }
+
+  /**
+   * Get the effective permission for the AclEntry. <br>
+   * Recommended to use this API ONLY if client communicates with the old
+   * NameNode, needs to pass the Permission for the path to get effective
+   * permission, else use {@link AclStatus#getEffectivePermission(AclEntry)}.
+   * @param entry AclEntry to get the effective action
+   * @param permArg Permission for the path. However if the client is NOT
+   *          communicating with old namenode, then this argument will not have
+   *          any preference.
+   * @return Returns the effective permission for the entry.
+   * @throws IllegalArgumentException If the client communicating with old
+   *           namenode and permission is not passed as an argument.
+   */
+  public FsAction getEffectivePermission(AclEntry entry, FsPermission permArg)
+      throws IllegalArgumentException {
+    // At least one permission bits should be available.
+    Preconditions.checkArgument(this.permission != null || permArg != null,
+        "Permission bits are not available to calculate effective permission");
+    if (this.permission != null) {
+      // permission bits from server response will have the priority for
+      // accuracy.
+      permArg = this.permission;
+    }
+    if ((entry.getName() != null || entry.getType() == AclEntryType.GROUP)) {
+      if (entry.getScope() == AclEntryScope.ACCESS) {
+        FsAction entryPerm = entry.getPermission();
+        return entryPerm.and(permArg.getGroupAction());
+      } else {
+        Preconditions.checkArgument(this.entries.contains(entry)
+            && this.entries.size() >= 3,
+            "Passed default ACL entry not found in the list of ACLs");
+        // default mask entry for effective permission calculation will be the
+        // penultimate entry. This can be mask entry in case of extended ACLs.
+        // In case of minimal ACL, this is the owner group entry, and we end up
+        // intersecting group FsAction with itself, which is a no-op.
+        FsAction defaultMask = this.entries.get(this.entries.size() - 2)
+            .getPermission();
+        FsAction entryPerm = entry.getPermission();
+        return entryPerm.and(defaultMask);
+      }
+    } else {
+      return entry.getPermission();
+    }
   }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/AclCommands.java
----------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/AclCommands.java
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/AclCommands.java
index 206576c..d139eba 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/AclCommands.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/AclCommands.java
@@ -86,22 +86,26 @@ class AclCommands extends FsCommand {
           (perm.getOtherAction().implies(FsAction.EXECUTE) ? "t" : "T"));
       }
 
-      List<AclEntry> entries = perm.getAclBit() ?
-        item.fs.getAclStatus(item.path).getEntries() :
-        Collections.<AclEntry>emptyList();
+      AclStatus aclStatus = item.fs.getAclStatus(item.path);
+      List<AclEntry> entries = perm.getAclBit() ? aclStatus.getEntries()
+          : Collections.<AclEntry> emptyList();
       ScopedAclEntries scopedEntries = new ScopedAclEntries(
         AclUtil.getAclFromPermAndEntries(perm, entries));
-      printAclEntriesForSingleScope(scopedEntries.getAccessEntries());
-      printAclEntriesForSingleScope(scopedEntries.getDefaultEntries());
+      printAclEntriesForSingleScope(aclStatus, perm,
+          scopedEntries.getAccessEntries());
+      printAclEntriesForSingleScope(aclStatus, perm,
+          scopedEntries.getDefaultEntries());
       out.println();
     }
 
     /**
      * Prints all the ACL entries in a single scope.
-     *
+     * @param aclStatus AclStatus for the path
+     * @param fsPerm FsPermission for the path
      * @param entries List<AclEntry> containing ACL entries of file
      */
-    private void printAclEntriesForSingleScope(List<AclEntry> entries) {
+    private void printAclEntriesForSingleScope(AclStatus aclStatus,
+        FsPermission fsPerm, List<AclEntry> entries) {
       if (entries.isEmpty()) {
         return;
       }
@@ -110,10 +114,8 @@ class AclCommands extends FsCommand {
           out.println(entry);
         }
       } else {
-        // ACL sort order guarantees mask is the second-to-last entry.
-        FsAction maskPerm = entries.get(entries.size() - 2).getPermission();
         for (AclEntry entry: entries) {
-          printExtendedAclEntry(entry, maskPerm);
+          printExtendedAclEntry(aclStatus, fsPerm, entry);
         }
       }
     }
@@ -123,14 +125,16 @@ class AclCommands extends FsCommand {
      * permissions of the entry, then also prints the restricted version as the
      * effective permissions.  The mask applies to all named entries and also
      * the unnamed group entry.
-     *
+     * @param aclStatus AclStatus for the path
+     * @param fsPerm FsPermission for the path
      * @param entry AclEntry extended ACL entry to print
-     * @param maskPerm FsAction permissions in the ACL's mask entry
      */
-    private void printExtendedAclEntry(AclEntry entry, FsAction maskPerm) {
+    private void printExtendedAclEntry(AclStatus aclStatus,
+        FsPermission fsPerm, AclEntry entry) {
       if (entry.getName() != null || entry.getType() == AclEntryType.GROUP) {
         FsAction entryPerm = entry.getPermission();
-        FsAction effectivePerm = entryPerm.and(maskPerm);
+        FsAction effectivePerm = aclStatus
+            .getEffectivePermission(entry, fsPerm);
         if (entryPerm != effectivePerm) {
           out.println(String.format("%s\t#effective:%s", entry,
             effectivePerm.SYMBOL));

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 769be43..7fcc8d2 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -441,6 +441,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-7476. Consolidate ACL-related operations to a single class.
     (wheat9 via cnauroth)
 
+    HDFS-7384. 'getfacl' command and 'getAclStatus' output should be in sync.
+    (Vinayakumar B via cnauroth)
+
   OPTIMIZATIONS
 
     HDFS-7454. Reduce memory footprint for AclEntries in NameNode.

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
index 2a5edc8..5a36585 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
@@ -2278,15 +2278,24 @@ public class PBHelper {
 
   public static AclStatus convert(GetAclStatusResponseProto e) {
     AclStatusProto r = e.getResult();
-    return new AclStatus.Builder().owner(r.getOwner()).group(r.getGroup())
-        .stickyBit(r.getSticky())
-        .addEntries(convertAclEntry(r.getEntriesList())).build();
+    AclStatus.Builder builder = new AclStatus.Builder();
+    builder.owner(r.getOwner()).group(r.getGroup()).stickyBit(r.getSticky())
+        .addEntries(convertAclEntry(r.getEntriesList()));
+    if (r.hasPermission()) {
+      builder.setPermission(convert(r.getPermission()));
+    }
+    return builder.build();
   }
 
   public static GetAclStatusResponseProto convert(AclStatus e) {
-    AclStatusProto r = AclStatusProto.newBuilder().setOwner(e.getOwner())
+    AclStatusProto.Builder builder = AclStatusProto.newBuilder();
+    builder.setOwner(e.getOwner())
         .setGroup(e.getGroup()).setSticky(e.isStickyBit())
-        .addAllEntries(convertAclEntryProto(e.getEntries())).build();
+        .addAllEntries(convertAclEntryProto(e.getEntries()));
+    if (e.getPermission() != null) {
+      builder.setPermission(convert(e.getPermission()));
+    }
+    AclStatusProto r = builder.build();
     return GetAclStatusResponseProto.newBuilder().setResult(r).build();
   }
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
index ac899aa..c2dee20 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirAclOp.java
@@ -171,9 +171,11 @@ class FSDirAclOp {
       INode inode = FSDirectory.resolveLastINode(srcs, iip);
       int snapshotId = iip.getPathSnapshotId();
       List<AclEntry> acl = AclStorage.readINodeAcl(inode, snapshotId);
+      FsPermission fsPermission = inode.getFsPermission(snapshotId);
       return new AclStatus.Builder()
           .owner(inode.getUserName()).group(inode.getGroupName())
-          .stickyBit(inode.getFsPermission(snapshotId).getStickyBit())
+          .stickyBit(fsPermission.getStickyBit())
+          .setPermission(fsPermission)
           .addEntries(acl).build();
     } finally {
       fsd.readUnlock();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FSImageLoader.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FSImageLoader.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FSImageLoader.java
index ff665e7..a26f1bf 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FSImageLoader.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FSImageLoader.java
@@ -34,10 +34,12 @@ import java.util.Map;
 import com.google.common.collect.ImmutableList;
 import com.google.protobuf.CodedInputStream;
 import com.google.protobuf.InvalidProtocolBufferException;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.permission.AclEntry;
+import org.apache.hadoop.fs.permission.AclStatus;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.fs.permission.PermissionStatus;
 import org.apache.hadoop.hdfs.protocol.proto.HdfsProtos;
@@ -46,6 +48,7 @@ import org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf;
 import org.apache.hadoop.hdfs.server.namenode.FSImageUtil;
 import org.apache.hadoop.hdfs.server.namenode.FsImageProto;
 import org.apache.hadoop.hdfs.server.namenode.INodeId;
+import org.apache.hadoop.hdfs.web.JsonUtil;
 import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.util.LimitInputStream;
 import org.codehaus.jackson.map.ObjectMapper;
@@ -314,27 +317,15 @@ class FSImageLoader {
    * @throws IOException if failed to serialize fileStatus to JSON.
    */
   String getAclStatus(String path) throws IOException {
-    StringBuilder sb = new StringBuilder();
-    List<AclEntry> aclEntryList = getAclEntryList(path);
     PermissionStatus p = getPermissionStatus(path);
-    sb.append("{\"AclStatus\":{\"entries\":[");
-    int i = 0;
-    for (AclEntry aclEntry : aclEntryList) {
-      if (i++ != 0) {
-        sb.append(',');
-      }
-      sb.append('"');
-      sb.append(aclEntry.toString());
-      sb.append('"');
-    }
-    sb.append("],\"group\": \"");
-    sb.append(p.getGroupName());
-    sb.append("\",\"owner\": \"");
-    sb.append(p.getUserName());
-    sb.append("\",\"stickyBit\": ");
-    sb.append(p.getPermission().getStickyBit());
-    sb.append("}}\n");
-    return sb.toString();
+    List<AclEntry> aclEntryList = getAclEntryList(path);
+    FsPermission permission = p.getPermission();
+    AclStatus.Builder builder = new AclStatus.Builder();
+    builder.owner(p.getUserName()).group(p.getGroupName())
+        .addEntries(aclEntryList).setPermission(permission)
+        .stickyBit(permission.getStickyBit());
+    AclStatus aclStatus = builder.build();
+    return JsonUtil.toJsonString(aclStatus);
   }
 
   private List<AclEntry> getAclEntryList(String path) throws IOException {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
index 0a2ae26..aa6100c 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
@@ -655,6 +655,16 @@ public class JsonUtil {
     m.put("group", status.getGroup());
     m.put("stickyBit", status.isStickyBit());
     m.put("entries", status.getEntries());
+    FsPermission perm = status.getPermission();
+    if (perm != null) {
+      m.put("permission", toString(perm));
+      if (perm.getAclBit()) {
+        m.put("aclBit", true);
+      }
+      if (perm.getEncryptedBit()) {
+        m.put("encBit", true);
+      }
+    }
     final Map<String, Map<String, Object>> finalMap =
         new TreeMap<String, Map<String, Object>>();
     finalMap.put(AclStatus.class.getSimpleName(), m);
@@ -673,7 +683,12 @@ public class JsonUtil {
     aclStatusBuilder.owner((String) m.get("owner"));
     aclStatusBuilder.group((String) m.get("group"));
     aclStatusBuilder.stickyBit((Boolean) m.get("stickyBit"));
-
+    String permString = (String) m.get("permission");
+    if (permString != null) {
+      final FsPermission permission = toFsPermission(permString,
+          (Boolean) m.get("aclBit"), (Boolean) m.get("encBit"));
+      aclStatusBuilder.setPermission(permission);
+    }
     final Object[] entries = (Object[]) m.get("entries");
 
     List<AclEntry> aclEntryList = new ArrayList<AclEntry>();

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/acl.proto
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/acl.proto b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/acl.proto
index e940142..57cc855 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/acl.proto
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/proto/acl.proto
@@ -58,6 +58,7 @@ message AclStatusProto {
   required string group          = 2;
   required bool sticky           = 3;
   repeated AclEntryProto entries = 4;
+  optional FsPermissionProto permission = 5;
 }
 
 message AclEditLogProto {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/WebHDFS.apt.vm
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/WebHDFS.apt.vm b/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/WebHDFS.apt.vm
index 54cd2ed..662f8b8 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/WebHDFS.apt.vm
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/WebHDFS.apt.vm
@@ -919,6 +919,7 @@ Transfer-Encoding: chunked
         ], 
         "group": "supergroup", 
         "owner": "hadoop", 
+        "permission":"775",
         "stickyBit": false
     }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java
index aff133f..eda0a28 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSAclBaseTest.java
@@ -1317,6 +1317,52 @@ public abstract class FSAclBaseTest {
     }
   }
 
+  @Test
+  public void testEffectiveAccess() throws Exception {
+    Path p1 = new Path("/testEffectiveAccess");
+    fs.mkdirs(p1);
+    // give all access at first
+    fs.setPermission(p1, FsPermission.valueOf("-rwxrwxrwx"));
+    AclStatus aclStatus = fs.getAclStatus(p1);
+    assertEquals("Entries should be empty", 0, aclStatus.getEntries().size());
+    assertEquals("Permission should be carried by AclStatus",
+        fs.getFileStatus(p1).getPermission(), aclStatus.getPermission());
+
+    // Add a named entries with all access
+    fs.modifyAclEntries(p1, Lists.newArrayList(
+        aclEntry(ACCESS, USER, "bruce", ALL),
+        aclEntry(ACCESS, GROUP, "groupY", ALL)));
+    aclStatus = fs.getAclStatus(p1);
+    assertEquals("Entries should contain owner group entry also", 3, aclStatus
+        .getEntries().size());
+
+    // restrict the access
+    fs.setPermission(p1, FsPermission.valueOf("-rwxr-----"));
+    // latest permissions should be reflected as effective permission
+    aclStatus = fs.getAclStatus(p1);
+    List<AclEntry> entries = aclStatus.getEntries();
+    for (AclEntry aclEntry : entries) {
+      if (aclEntry.getName() != null || aclEntry.getType() == GROUP) {
+        assertEquals(FsAction.ALL, aclEntry.getPermission());
+        assertEquals(FsAction.READ, aclStatus.getEffectivePermission(aclEntry));
+      }
+    }
+    fsAsBruce.access(p1, READ);
+    try {
+      fsAsBruce.access(p1, WRITE);
+      fail("Access should not be given");
+    } catch (AccessControlException e) {
+      // expected
+    }
+    fsAsBob.access(p1, READ);
+    try {
+      fsAsBob.access(p1, WRITE);
+      fail("Access should not be given");
+    } catch (AccessControlException e) {
+      // expected
+    }
+  }
+
   /**
    * Creates a FileSystem for the super-user.
    *

http://git-wip-us.apache.org/repos/asf/hadoop/blob/ffe942b8/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testAclCLI.xml
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testAclCLI.xml b/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testAclCLI.xml
index 21031ad..82a5809 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testAclCLI.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/testAclCLI.xml
@@ -318,6 +318,59 @@
       </comparators>
     </test>
     <test>
+      <description>setfacl : Add minimal default ACL</description>
+      <test-commands>
+        <command>-fs NAMENODE -mkdir /dir1</command>
+        <command>-fs NAMENODE -setfacl -m default:user::rwx /dir1</command>
+        <command>-fs NAMENODE -getfacl /dir1</command>
+      </test-commands>
+      <cleanup-commands>
+        <command>-fs NAMENODE -rm -R /dir1</command>
+      </cleanup-commands>
+      <comparators>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output># file: /dir1</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output># owner: USERNAME</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output># group: supergroup</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>user::rwx</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>group::r-x</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>other::r-x</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>default:user::rwx</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>default:group::r-x</expected-output>
+        </comparator>
+        <comparator>
+          <type>SubstringComparator</type>
+          <expected-output>default:other::r-x</expected-output>
+        </comparator>
+        <comparator>
+          <type>RegexpAcrossOutputComparator</type>
+          <expected-output>.*(?!default\:mask)*</expected-output>
+        </comparator>
+      </comparators>
+    </test>
+    <test>
       <description>setfacl : try adding default ACL to file</description>
       <test-commands>
         <command>-fs NAMENODE -touchz /file1</command>


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