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From mreut...@apache.org
Subject svn commit: r803825 - /jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/
Date Thu, 13 Aug 2009 09:59:39 GMT
Author: mreutegg
Date: Thu Aug 13 09:59:38 2009
New Revision: 803825

URL: http://svn.apache.org/viewvc?rev=803825&view=rev
Log:
JCR-1854: Use Journal as index redo log when available
- introduce a factory for redo logs
- expose ConsistencyCheck on SearchIndex

Added:
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java
  (contents, props changed)
      - copied, changed from r803812, jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java
  (with props)
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java
  (with props)
Modified:
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheck.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheckError.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/IndexHistory.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/MultiIndex.java
    jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/SearchIndex.java

Modified: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheck.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheck.java?rev=803825&r1=803824&r2=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheck.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheck.java
Thu Aug 13 09:59:38 2009
@@ -44,7 +44,7 @@
  * in the index for such a node are removed, and the node is re-indexed.</li>
  * </ul>
  */
-class ConsistencyCheck {
+public class ConsistencyCheck {
 
     /**
      * Logger instance for this class
@@ -102,7 +102,7 @@
      *   repair failure.
      * @throws IOException if a repair failure occurs.
      */
-    void repair(boolean ignoreFailure) throws IOException {
+    public void repair(boolean ignoreFailure) throws IOException {
         if (errors.size() == 0) {
             log.info("No errors found.");
             return;
@@ -137,7 +137,7 @@
      * Returns the errors detected by the consistency check.
      * @return the errors detected by the consistency check.
      */
-    List<ConsistencyCheckError> getErrors() {
+    public List<ConsistencyCheckError> getErrors() {
         return new ArrayList<ConsistencyCheckError>(errors);
     }
 

Modified: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheckError.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheckError.java?rev=803825&r1=803824&r2=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheckError.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/ConsistencyCheckError.java
Thu Aug 13 09:59:38 2009
@@ -23,7 +23,7 @@
 /**
  * Common base class for errors detected during the consistency check.
  */
-abstract class ConsistencyCheckError {
+public abstract class ConsistencyCheckError {
 
     /**
      * Diagnostic message for this error.
@@ -52,7 +52,7 @@
      * Returns <code>true</code> if this error can be repaired.
      * @return <code>true</code> if this error can be repaired.
      */
-    abstract boolean repairable();
+    public abstract boolean repairable();
 
     /**
      * Executes the repair operation.

Copied: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java
(from r803812, jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java)
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java?p2=jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java&p1=jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java&r1=803812&r2=803825&rev=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java
Thu Aug 13 09:59:38 2009
@@ -42,12 +42,12 @@
  * <p/>
  * This class is not thread-safe.
  */
-class RedoLog {
+class DefaultRedoLog implements RedoLog {
 
     /**
      * Logger instance for this class
      */
-    private static final Logger log = LoggerFactory.getLogger(RedoLog.class);
+    private static final Logger log = LoggerFactory.getLogger(DefaultRedoLog.class);
 
     /**
      * Default name of the redo log file
@@ -102,7 +102,7 @@
      * @param fileName the name of the redo log file.
      * @throws IOException if an error occurs while reading the redo log.
      */
-    private RedoLog(Directory dir, String fileName) throws IOException {
+    private DefaultRedoLog(Directory dir, String fileName) throws IOException {
         this.dir = dir;
         this.fileName = fileName;
         read(ENTRY_COUNTER);
@@ -120,12 +120,12 @@
     static RedoLog create(Directory dir, long generation) throws IOException {
         String fileName;
         if (generation == 0) {
-            fileName = RedoLog.REDO_LOG;
+            fileName = REDO_LOG;
         } else {
-            fileName = RedoLog.REDO_LOG_PREFIX + Long.toString(
-                    generation, Character.MAX_RADIX) + RedoLog.DOT_LOG;
+            fileName = REDO_LOG_PREFIX + Long.toString(
+                    generation, Character.MAX_RADIX) + DOT_LOG;
         }
-        return new RedoLog(dir, fileName);
+        return new DefaultRedoLog(dir, fileName);
     }
 
     /**
@@ -134,7 +134,7 @@
      * @return <code>true</code> if this redo log contains any entries,
      * <code>false</code> otherwise.
      */
-    boolean hasEntries() {
+    public boolean hasEntries() {
         return entryCount > 0;
     }
 
@@ -142,7 +142,7 @@
      * Returns the number of entries in this redo log.
      * @return the number of entries in this redo log.
      */
-    int getSize() {
+    public int getSize() {
         return entryCount;
     }
 
@@ -154,7 +154,7 @@
      *         redo log.
      * @throws IOException if an error occurs while reading from the redo log.
      */
-    List<MultiIndex.Action> getActions() throws IOException {
+    public List<MultiIndex.Action> getActions() throws IOException {
         final List<MultiIndex.Action> actions = new ArrayList<MultiIndex.Action>();
         read(new ActionCollector() {
             public void collect(MultiIndex.Action a) {
@@ -171,7 +171,7 @@
      * @throws IOException if the node cannot be written to the redo
      * log.
      */
-    void append(MultiIndex.Action action) throws IOException {
+    public void append(MultiIndex.Action action) throws IOException {
         initOut();
         out.write(action.toString() + "\n");
         entryCount++;
@@ -181,7 +181,7 @@
      * Flushes all pending writes to the underlying file.
      * @throws IOException if an error occurs while writing.
      */
-    void flush() throws IOException {
+    public void flush() throws IOException {
         if (out != null) {
             out.flush();
         }
@@ -192,7 +192,7 @@
      *
      * @throws IOException if an error occurs while flushing pending writes.
      */
-    void close() throws IOException {
+    public void close() throws IOException {
         if (out != null) {
             out.close();
             out = null;
@@ -212,7 +212,7 @@
     }
 
     /**
-     * Reads the log file and calls back {@link RedoLog.ActionCollector}.
+     * Reads the log file and calls back {@link DefaultRedoLog.ActionCollector}.
      *
      * @param collector called back for each {@link MultiIndex.Action} read.
      * @throws IOException if an error occurs while reading from the

Propchange: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLog.java
------------------------------------------------------------------------------
    svn:eol-style = native

Added: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java?rev=803825&view=auto
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java
(added)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java
Thu Aug 13 09:59:38 2009
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.jackrabbit.core.query.lucene;
+
+import java.io.IOException;
+
+/**
+ * <code>DefaultRedoLogFactory</code>...
+ */
+public class DefaultRedoLogFactory implements RedoLogFactory {
+
+    public RedoLog createRedoLog(MultiIndex index) throws IOException {
+        return DefaultRedoLog.create(index.getDirectory(), index.getIndexGeneration());
+    }
+}

Propchange: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/DefaultRedoLogFactory.java
------------------------------------------------------------------------------
    svn:eol-style = native

Modified: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/IndexHistory.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/IndexHistory.java?rev=803825&r1=803824&r2=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/IndexHistory.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/IndexHistory.java
Thu Aug 13 09:59:38 2009
@@ -198,11 +198,11 @@
      */
     String getRedoLogName(long generation) {
         if (generation == 0) {
-            return RedoLog.REDO_LOG;
+            return DefaultRedoLog.REDO_LOG;
         } else {
-            return RedoLog.REDO_LOG_PREFIX +
+            return DefaultRedoLog.REDO_LOG_PREFIX +
                     Long.toString(generation, Character.MAX_RADIX) +
-                    RedoLog.DOT_LOG;
+                    DefaultRedoLog.DOT_LOG;
         }
     }
 }

Modified: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/MultiIndex.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/MultiIndex.java?rev=803825&r1=803824&r2=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/MultiIndex.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/MultiIndex.java
Thu Aug 13 09:59:38 2009
@@ -125,6 +125,11 @@
     private final DirectoryManager directoryManager;
 
     /**
+     * The redo log factory
+     */
+    private final RedoLogFactory redoLogFactory;
+
+    /**
      * The base directory to store the index.
      */
     private final Directory indexDir;
@@ -232,6 +237,7 @@
      */
     MultiIndex(SearchIndex handler, Set<NodeId> excludedIDs) throws IOException {
         this.directoryManager = handler.getDirectoryManager();
+        this.redoLogFactory = handler.getRedoLogFactory();
         this.indexDir = directoryManager.getDirectory(".");
         this.handler = handler;
         this.cache = new DocNumberCache(handler.getCacheSize());
@@ -246,7 +252,7 @@
         // as of 1.5 deletable file is not used anymore
         removeDeletable();
 
-        this.redoLog = RedoLog.create(indexDir, indexNames.getGeneration());
+        this.redoLog = redoLogFactory.createRedoLog(this);
 
         // initialize IndexMerger
         merger = new IndexMerger(this, handler.getIndexMergerPoolSize());
@@ -766,6 +772,17 @@
     }
 
     /**
+     * Runs a consistency check on this multi index.
+     *
+     * @return the consistency check.
+     * @throws IOException if an error occurs while running the check.
+     */
+    ConsistencyCheck runConsistencyCheck() throws IOException {
+        return ConsistencyCheck.run(this,
+                handler.getContext().getItemStateManager());
+    }
+
+    /**
      * Closes this <code>MultiIndex</code>.
      */
     void close() {
@@ -824,6 +841,20 @@
     }
 
     /**
+     * @return the base directory of the index.
+     */
+    Directory getDirectory() {
+        return indexDir;
+    }
+
+    /**
+     * @return the current generation of the index names.
+     */
+    long getIndexGeneration() {
+        return indexNames.getGeneration();
+    }
+
+    /**
      * Returns a lucene Document for the <code>node</code>.
      *
      * @param node the node to index.
@@ -942,7 +973,7 @@
                 // close redo.log and create a new one based
                 // on the new indexNames generation
                 redoLog.close();
-                redoLog = RedoLog.create(indexDir, indexNames.getGeneration());
+                redoLog = redoLogFactory.createRedoLog(this);
             }
 
             lastFlushTime = System.currentTimeMillis();

Added: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java?rev=803825&view=auto
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
(added)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLog.java
Thu Aug 13 09:59:38 2009
@@ -0,0 +1,77 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.jackrabbit.core.query.lucene;
+
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * Defines a redo log for changes that have not been committed to disk. While
+ * nodes are added to and removed from the volatile index (held in memory) a
+ * redo log is maintained to keep track of the changes. In case the Jackrabbit
+ * process terminates unexpected the redo log is applied when Jackrabbit is
+ * restarted the next time.
+ */
+public interface RedoLog {
+
+    /**
+     * Returns <code>true</code> if this redo log contains any entries,
+     * <code>false</code> otherwise.
+     * @return <code>true</code> if this redo log contains any entries,
+     * <code>false</code> otherwise.
+     */
+    boolean hasEntries();
+
+    /**
+     * Returns the number of entries in this redo log.
+     * @return the number of entries in this redo log.
+     */
+    int getSize();
+
+    /**
+     * Returns a List with all {@link MultiIndex.Action} instances in the
+     * redo log.
+     *
+     * @return an List with all {@link MultiIndex.Action} instances in the
+     *         redo log.
+     * @throws IOException if an error occurs while reading from the redo log.
+     */
+    List<MultiIndex.Action> getActions() throws IOException;
+
+    /**
+     * Appends an action to the log.
+     *
+     * @param action the action to append.
+     * @throws IOException if the node cannot be written to the redo
+     * log.
+     */
+    void append(MultiIndex.Action action) throws IOException;
+
+    /**
+     * Flushes all pending writes to the redo log.
+     *
+     * @throws IOException if an error occurs while writing.
+     */
+    void flush() throws IOException;
+
+    /**
+     * Flushes all pending writes to the redo log and closes it.
+     *
+     * @throws IOException if an error occurs while writing.
+     */
+    void close() throws IOException;
+}

Added: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java?rev=803825&view=auto
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java
(added)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java
Thu Aug 13 09:59:38 2009
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.jackrabbit.core.query.lucene;
+
+import java.io.IOException;
+
+/**
+ * <code>RedoLogFactory</code> a factory for {@link RedoLog}s.
+ */
+public interface RedoLogFactory {
+
+    /**
+     * Creates a redo log starting at the current state of the
+     * <code>index</code>.
+     *
+     * @param index the index.
+     * @return the redo log.
+     * @throws IOException if an error occurs while reading from the index or
+     *                     the log cannot be created for some other reason.
+     */
+    public RedoLog createRedoLog(MultiIndex index) throws IOException;
+}

Propchange: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/RedoLogFactory.java
------------------------------------------------------------------------------
    svn:eol-style = native

Modified: jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/SearchIndex.java
URL: http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/SearchIndex.java?rev=803825&r1=803824&r2=803825&view=diff
==============================================================================
--- jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/SearchIndex.java
(original)
+++ jackrabbit/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/SearchIndex.java
Thu Aug 13 09:59:38 2009
@@ -460,6 +460,16 @@
     private int indexMergerPoolSize = DEFAULT_INDEX_MERGER_POOL_SIZE;
 
     /**
+     * The name of the redo log factory class implementation.
+     */
+    private String redoLogFactoryClass = DefaultRedoLogFactory.class.getName();
+
+    /**
+     * The redo log factory.
+     */
+    private RedoLogFactory redoLogFactory;
+
+    /**
      * Indicates if this <code>SearchIndex</code> is closed and cannot be used
      * anymore.
      */
@@ -493,6 +503,7 @@
         extractor = createTextExtractor();
         synProvider = createSynonymProvider();
         directoryManager = createDirectoryManager();
+        redoLogFactory = createRedoLogFactory();
 
         if (context.getParentHandler() instanceof SearchIndex) {
             // use system namespace mappings
@@ -535,8 +546,7 @@
                 && (index.getRedoLogApplied() || forceConsistencyCheck)) {
             log.info("Running consistency check...");
             try {
-                ConsistencyCheck check = ConsistencyCheck.run(index,
-                        context.getItemStateManager());
+                ConsistencyCheck check = runConsistencyCheck();
                 if (autoRepair) {
                     check.repair(true);
                 } else {
@@ -1000,6 +1010,23 @@
     }
 
     /**
+     * @return the redo log factory for this search index.
+     */
+    public RedoLogFactory getRedoLogFactory() {
+        return redoLogFactory;
+    }
+
+    /**
+     * Runs a consistency check on this search index.
+     *
+     * @return the result of the consistency check.
+     * @throws IOException if an error occurs while running the check.
+     */
+    public ConsistencyCheck runConsistencyCheck() throws IOException {
+        return index.runConsistencyCheck();
+    }
+
+    /**
      * Returns an index reader for this search index. The caller of this method
      * is responsible for closing the index reader when he is finished using
      * it.
@@ -1196,12 +1223,34 @@
     }
 
     /**
+     * Creates a redo log factory based on {@link #getRedoLogFactoryClass()}.
+     *
+     * @return the redo log factory.
+     * @throws IOException if an error occurs while creating the factory.
+     */
+    protected RedoLogFactory createRedoLogFactory() throws IOException {
+        try {
+            Class<?> clazz = Class.forName(redoLogFactoryClass);
+            if (!RedoLogFactory.class.isAssignableFrom(clazz)) {
+                throw new IOException(redoLogFactoryClass +
+                        " is not a RedoLogFactory implementation");
+            }
+            return (RedoLogFactory) clazz.newInstance();
+        } catch (Exception e) {
+            IOException ex = new IOException();
+            ex.initCause(e);
+            throw ex;
+        }
+    }
+
+    /**
      * Creates a file system resource to the synonym provider configuration.
      *
      * @return a file system resource or <code>null</code> if no path was
      *         configured.
      * @throws FileSystemException if an exception occurs accessing the file
      *                             system.
+     * @throws IOException         if another exception occurs.
      */
     protected FileSystemResource createSynonymProviderConfigResource()
             throws FileSystemException, IOException {
@@ -2243,6 +2292,23 @@
         this.maxHistoryAge = maxHistoryAge;
     }
 
+    /**
+     * @return the name of the redo log factory class.
+     */
+    public String getRedoLogFactoryClass() {
+        return redoLogFactoryClass;
+    }
+
+    /**
+     * Sets the name of the redo log factory class. Must implement
+     * {@link RedoLogFactory}.
+     *
+     * @param className the name of the redo log factory class.
+     */
+    public void setRedoLogFactoryClass(String className) {
+        this.redoLogFactoryClass = className;
+    }
+
     //----------------------------< internal >----------------------------------
 
     /**



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