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Posted to oak-commits@jackrabbit.apache.org by mr...@apache.org on 2013/12/12 09:56:43 UTC

svn commit: r1550377 - in /jackrabbit/oak/trunk/oak-core/src: main/java/org/apache/jackrabbit/oak/plugins/mongomk/ test/java/org/apache/jackrabbit/oak/plugins/mongomk/

Author: mreutegg
Date: Thu Dec 12 08:56:43 2013
New Revision: 1550377

URL: http://svn.apache.org/r1550377
Log:
OAK-1281: Incorrect path sorting in background write

Added:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparator.java   (with props)
    jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparatorTest.java   (with props)
Modified:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/MongoNodeStore.java
    jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/BackgroundWriteTest.java

Modified: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/MongoNodeStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/MongoNodeStore.java?rev=1550377&r1=1550376&r2=1550377&view=diff
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/MongoNodeStore.java (original)
+++ jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/MongoNodeStore.java Thu Dec 12 08:56:43 2013
@@ -27,7 +27,6 @@ import java.io.InputStream;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
@@ -1183,19 +1182,7 @@ public final class MongoNodeStore
         }
         ArrayList<String> paths = new ArrayList<String>(unsavedLastRevisions.getPaths());
         // sort by depth (high depth first), then path
-        Collections.sort(paths, new Comparator<String>() {
-
-            @Override
-            public int compare(String o1, String o2) {
-                int d1 = Utils.pathDepth(o1);
-                int d2 = Utils.pathDepth(o1);
-                if (d1 != d2) {
-                    return Integer.signum(d1 - d2);
-                }
-                return o1.compareTo(o2);
-            }
-
-        });
+        Collections.sort(paths, PathComparator.INSTANCE);
 
         UpdateOp updateOp = null;
         Revision lastRev = null;
@@ -1219,10 +1206,11 @@ public final class MongoNodeStore
                 ids.add(Utils.getIdFromPath(p));
             }
             // call update if any of the following is true:
-            // - this is the last path
+            // - this is the second-to-last or last path (update last path, the
+            //   root document, individually)
             // - revision is not equal to last revision (size of ids didn't change)
             // - the update limit is reached
-            if (i + 1 >= paths.size()
+            if (i + 2 >= paths.size()
                     || size == ids.size()
                     || ids.size() >= BACKGROUND_MULTI_UPDATE_LIMIT) {
                 store.update(Collection.NODES, ids, updateOp);

Added: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparator.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparator.java?rev=1550377&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparator.java (added)
+++ jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparator.java Thu Dec 12 08:56:43 2013
@@ -0,0 +1,45 @@
+/*
+ * 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.oak.plugins.mongomk;
+
+import java.util.Comparator;
+
+import org.apache.jackrabbit.oak.plugins.mongomk.util.Utils;
+
+/**
+ * Implements a comparator, which sorts path string according to 1) their
+ * depth (highest first) and 2) the path string itself.
+ */
+class PathComparator implements Comparator<String> {
+
+    static final Comparator<String> INSTANCE = new PathComparator();
+
+    private PathComparator() {
+    }
+
+    @Override
+    public int compare(String o1, String o2) {
+        int d1 = Utils.pathDepth(o1);
+        int d2 = Utils.pathDepth(o2);
+        if (d1 != d2) {
+            return Integer.signum(d2 - d1);
+        }
+        return o1.compareTo(o2);
+    }
+}

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Modified: jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/BackgroundWriteTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/BackgroundWriteTest.java?rev=1550377&r1=1550376&r2=1550377&view=diff
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/BackgroundWriteTest.java (original)
+++ jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/BackgroundWriteTest.java Thu Dec 12 08:56:43 2013
@@ -47,6 +47,7 @@ public class BackgroundWriteTest {
         mk.runBackgroundOperations();
         Revision r = mk.getNodeStore().newRevision();
         UnsavedModifications pending = mk.getNodeStore().getPendingModifications();
+        paths.add("/");
         for (String p : paths) {
             pending.put(p, r);
         }

Added: jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparatorTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparatorTest.java?rev=1550377&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparatorTest.java (added)
+++ jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/mongomk/PathComparatorTest.java Thu Dec 12 08:56:43 2013
@@ -0,0 +1,52 @@
+/*
+ * 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.oak.plugins.mongomk;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.google.common.collect.Lists;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Tests for {@link PathComparator}.
+ */
+public class PathComparatorTest {
+
+    @Test
+    public void sort() {
+        List<String> paths = new ArrayList<String>();
+        paths.add("/foo");
+        paths.add("/foo/bar");
+        paths.add("/bar/qux");
+        paths.add("/");
+        paths.add("/bar");
+
+        Collections.sort(paths, PathComparator.INSTANCE);
+
+        List<String> expected = Lists.newArrayList(
+                "/bar/qux", "/foo/bar", "/bar", "/foo", "/");
+
+        assertEquals(expected, paths);
+    }
+}

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