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Posted to oak-commits@jackrabbit.apache.org by ju...@apache.org on 2013/12/11 19:28:48 UTC

svn commit: r1550219 - in /jackrabbit/oak/trunk: oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/ oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/

Author: jukka
Date: Wed Dec 11 18:28:48 2013
New Revision: 1550219

URL: http://svn.apache.org/r1550219
Log:
OAK-867: Oak whiteboard

Refactor OsgiExecutor to WhiteboardExecutor

Added:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/WhiteboardExecutor.java
Removed:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/OakExecutor.java
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/OsgiExecutor.java
Modified:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ObserverTracker.java
    jackrabbit/oak/trunk/oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/Activator.java

Modified: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ObserverTracker.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ObserverTracker.java?rev=1550219&r1=1550218&r2=1550219&view=diff
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ObserverTracker.java (original)
+++ jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/osgi/ObserverTracker.java Wed Dec 11 18:28:48 2013
@@ -30,9 +30,11 @@ import javax.annotation.Nonnull;
 
 import com.google.common.io.Closeables;
 import com.google.common.io.Closer;
+
 import org.apache.jackrabbit.oak.spi.commit.BackgroundObserver;
 import org.apache.jackrabbit.oak.spi.commit.Observable;
 import org.apache.jackrabbit.oak.spi.commit.Observer;
+import org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardExecutor;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.ServiceReference;
 import org.osgi.util.tracker.ServiceTracker;
@@ -40,7 +42,7 @@ import org.osgi.util.tracker.ServiceTrac
 
 public class ObserverTracker implements ServiceTrackerCustomizer {
     private final Map<ServiceReference, Closeable> subscriptions = newHashMap();
-    private final OsgiExecutor osgiExecutor = new OsgiExecutor();
+    private final WhiteboardExecutor executor = new WhiteboardExecutor();
     private final Observable observable;
 
     private BundleContext bundleContext;
@@ -53,7 +55,7 @@ public class ObserverTracker implements 
     public void start(@Nonnull BundleContext bundleContext) {
         checkState(this.bundleContext == null);
         this.bundleContext = checkNotNull(bundleContext);
-        osgiExecutor.start(bundleContext);
+        executor.start(new OsgiWhiteboard(bundleContext));
         observerTracker = new ServiceTracker(bundleContext, Observer.class.getName(), this);
         observerTracker.open();
     }
@@ -61,7 +63,7 @@ public class ObserverTracker implements 
     public void stop() {
         checkState(this.bundleContext != null);
         observerTracker.close();
-        osgiExecutor.stop();
+        executor.stop();
     }
 
     //------------------------< ServiceTrackerCustomizer >----------------------
@@ -73,7 +75,7 @@ public class ObserverTracker implements 
         if (service instanceof Observer) {
             Closer subscription = Closer.create();
             BackgroundObserver observer = subscription.register(
-                    new BackgroundObserver((Observer) service, osgiExecutor));
+                    new BackgroundObserver((Observer) service, executor));
             subscription.register(
                     observable.addObserver(observer));
             subscriptions.put(reference, subscription);

Added: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/WhiteboardExecutor.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/WhiteboardExecutor.java?rev=1550219&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/WhiteboardExecutor.java (added)
+++ jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/whiteboard/WhiteboardExecutor.java Wed Dec 11 18:28:48 2013
@@ -0,0 +1,49 @@
+/*
+ * 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.spi.whiteboard;
+
+import java.util.concurrent.Executor;
+
+/**
+ * Dynamic {@link Executor} based on the available whiteboard services.
+ * The {@link #execute(Runnable)} method passes the given command to the
+ * first available executor service. Alternatively the command is run
+ * in the calling thread if no executor services are available.
+ */
+public class WhiteboardExecutor extends AbstractServiceTracker<Executor>
+        implements Executor {
+
+    public WhiteboardExecutor() {
+        super(Executor.class);
+    }
+
+    //----------------------------------------------------------< Executor >--
+
+    @Override
+    public void execute(Runnable command) {
+        for (Executor executor : getServices()) {
+            // use the first executor to run the command
+            executor.execute(command);
+            return;
+        }
+        // no executor services available, so use the current thread instead
+        command.run();
+    }
+
+}

Modified: jackrabbit/oak/trunk/oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/Activator.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/Activator.java?rev=1550219&r1=1550218&r2=1550219&view=diff
==============================================================================
--- jackrabbit/oak/trunk/oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/Activator.java (original)
+++ jackrabbit/oak/trunk/oak-jcr/src/main/java/org/apache/jackrabbit/oak/jcr/osgi/Activator.java Wed Dec 11 18:28:48 2013
@@ -24,7 +24,6 @@ import javax.jcr.Repository;
 
 import org.apache.jackrabbit.oak.Oak;
 import org.apache.jackrabbit.oak.api.ContentRepository;
-import org.apache.jackrabbit.oak.osgi.OsgiExecutor;
 import org.apache.jackrabbit.oak.osgi.OsgiWhiteboard;
 import org.apache.jackrabbit.oak.plugins.commit.JcrConflictHandler;
 import org.apache.jackrabbit.oak.plugins.nodetype.write.InitialContent;
@@ -38,6 +37,7 @@ import org.apache.jackrabbit.oak.spi.sec
 import org.apache.jackrabbit.oak.spi.state.NodeStore;
 import org.apache.jackrabbit.oak.spi.whiteboard.Whiteboard;
 import org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardEditorProvider;
+import org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardExecutor;
 import org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardIndexEditorProvider;
 import org.apache.jackrabbit.oak.spi.whiteboard.WhiteboardIndexProvider;
 import org.apache.jackrabbit.oak.spi.xml.ImportBehavior;
@@ -67,7 +67,7 @@ public class Activator implements Bundle
     private final WhiteboardIndexProvider indexProvider =
             new WhiteboardIndexProvider();
 
-    private final OsgiExecutor executor = new OsgiExecutor();
+    private final WhiteboardExecutor executor = new WhiteboardExecutor();
 
     // TODO should not be hardcoded
     private final SecurityProvider securityProvider =
@@ -101,7 +101,7 @@ public class Activator implements Bundle
         editorProvider.start(whiteboard);
         indexEditorProvider.start(whiteboard);
         indexProvider.start(whiteboard);
-        executor.start(bundleContext);
+        executor.start(whiteboard);
     }
 
     @Override