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From rmannibu...@apache.org
Subject svn commit: r1593785 - in /commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache: JCSCache.java JCSElement.java spi/ spi/CacheEvictor.java
Date Sun, 11 May 2014 12:43:07 GMT
Author: rmannibucau
Date: Sun May 11 12:43:07 2014
New Revision: 1593785

URL: http://svn.apache.org/r1593785
Log:
adding API CacheEvictor

Added:
    commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/
    commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/CacheEvictor.java
Modified:
    commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSCache.java
    commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSElement.java

Modified: commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSCache.java
URL: http://svn.apache.org/viewvc/commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSCache.java?rev=1593785&r1=1593784&r2=1593785&view=diff
==============================================================================
--- commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSCache.java
(original)
+++ commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSCache.java
Sun May 11 12:43:07 2014
@@ -23,6 +23,7 @@ import org.apache.commons.jcs.jcache.jmx
 import org.apache.commons.jcs.jcache.jmx.JMXs;
 import org.apache.commons.jcs.jcache.lang.Subsitutor;
 import org.apache.commons.jcs.jcache.proxy.ExceptionWrapperHandler;
+import org.apache.commons.jcs.jcache.spi.CacheEvictor;
 import org.apache.commons.jcs.jcache.thread.DaemonThreadFactory;
 
 import javax.cache.Cache;
@@ -110,7 +111,24 @@ public class JCSCache<K, V, C extends Co
         final long evictionPause = Long.parseLong(properties.getProperty(cacheName + ".evictionPause",
properties.getProperty("evictionPause", "30000")));
         if (evictionPause > 0)
         {
-            pool.submit(new EvictionThread<K>(this, evictionPause));
+            final CacheEvictor<K, V> evictor;
+            final String evictorClass = property(properties, cacheName, "evictor", null);
+            if (evictorClass != null)
+            {
+                try
+                {
+                    evictor = CacheEvictor.class.cast(classLoader.loadClass(evictorClass).newInstance());
+                }
+                catch (final Exception e)
+                {
+                    throw new IllegalStateException(e);
+                }
+            }
+            else
+            {
+                evictor = null;
+            }
+            pool.submit(new EvictionThread<K, V>(this, evictionPause, evictor));
         }
 
         final Factory<CacheLoader<K, V>> cacheLoaderFactory = configuration.getCacheLoaderFactory();
@@ -176,7 +194,12 @@ public class JCSCache<K, V, C extends Co
 
     private static String property(final Properties properties, final String cacheName, final
String name, final String defaultValue)
     {
-        return SUBSTITUTOR.substitute(properties.getProperty(cacheName + "." + name, properties.getProperty(name,
defaultValue)));
+        final String property = properties.getProperty(cacheName + "." + name, properties.getProperty(name,
defaultValue));
+        if (property == null)
+        {
+            return null;
+        }
+        return SUBSTITUTOR.substitute(property);
     }
 
     private void assertNotClosed()
@@ -908,15 +931,17 @@ public class JCSCache<K, V, C extends Co
         JMXs.unregister(cacheStatsObjectName);
     }
 
-    private static class EvictionThread<K> implements Runnable
+    private static class EvictionThread<K, V> implements Runnable
     {
         private final long pause;
-        private final JCSCache<K, ?, ?> cache;
+        private final JCSCache<K, V, ?> cache;
+        private final CacheEvictor<K, V> evictor;
 
-        public EvictionThread(final JCSCache<K, ?, ?> cache, final long evictionPause)
+        public EvictionThread(final JCSCache<K, V, ?> cache, final long evictionPause,
final CacheEvictor<K, V> evictor)
         {
             this.cache = cache;
             this.pause = evictionPause;
+            this.evictor = evictor;
         }
 
         @Override
@@ -924,7 +949,14 @@ public class JCSCache<K, V, C extends Co
         {
             while (!cache.isClosed())
             {
-                cache.evict();
+                if (evictor != null)
+                {
+                    evictor.evict(cache);
+                }
+                else
+                {
+                    cache.evict();
+                }
                 try
                 {
                     Thread.sleep(pause);

Modified: commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSElement.java
URL: http://svn.apache.org/viewvc/commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSElement.java?rev=1593785&r1=1593784&r2=1593785&view=diff
==============================================================================
--- commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSElement.java
(original)
+++ commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/JCSElement.java
Sun May 11 12:43:07 2014
@@ -24,7 +24,7 @@ import java.io.Serializable;
 public class JCSElement<V> implements Serializable
 {
     private final V element;
-    private volatile long end;
+    private volatile long end = Long.MIN_VALUE;
 
     public JCSElement(final V element, final Duration duration)
     {
@@ -44,6 +44,11 @@ public class JCSElement<V> implements Se
 
     public void update(final Duration duration)
     {
+        if (end != Long.MIN_VALUE && duration == null)
+        {
+            return;
+        }
+
         if (duration == null || duration.isEternal())
         {
             end = -1;

Added: commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/CacheEvictor.java
URL: http://svn.apache.org/viewvc/commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/CacheEvictor.java?rev=1593785&view=auto
==============================================================================
--- commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/CacheEvictor.java
(added)
+++ commons/proper/jcs/trunk/commons-jcs-jcache/src/main/java/org/apache/commons/jcs/jcache/spi/CacheEvictor.java
Sun May 11 12:43:07 2014
@@ -0,0 +1,26 @@
+/*
+ * 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.commons.jcs.jcache.spi;
+
+import org.apache.commons.jcs.jcache.JCSCache;
+
+public interface CacheEvictor<K, V>
+{
+    void evict(JCSCache<K, V, ?> delegate);
+}



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