[jboss-cvs] JBossAS SVN: r77605 - projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Thu Aug 28 12:09:37 EDT 2008
Author: bstansberry at jboss.com
Date: 2008-08-28 12:09:36 -0400 (Thu, 28 Aug 2008)
New Revision: 77605
Added:
projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/JmxBoundTreeCacheProvider.java
projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/OptimisticJmxBoundTreeCacheProvider.java
Log:
[JBCLUSTER-206] Rename JMX-based providers
Copied: projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/JmxBoundTreeCacheProvider.java (from rev 77603, projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/TreeCacheProvider.java)
===================================================================
--- projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/JmxBoundTreeCacheProvider.java (rev 0)
+++ projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/JmxBoundTreeCacheProvider.java 2008-08-28 16:09:36 UTC (rev 77605)
@@ -0,0 +1,162 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2006, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.jboss.hibernate.jbc.cacheprovider;
+
+import java.util.Properties;
+
+import javax.management.ObjectName;
+import javax.transaction.TransactionManager;
+
+import org.hibernate.cache.Cache;
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.CacheProvider;
+import org.hibernate.transaction.TransactionManagerLookup;
+import org.hibernate.transaction.TransactionManagerLookupFactory;
+import org.jboss.cache.TreeCache;
+import org.jboss.cache.TreeCacheMBean;
+import org.jboss.logging.Logger;
+import org.jboss.mx.util.MBeanProxyExt;
+import org.jboss.mx.util.MBeanServerLocator;
+import org.jboss.tm.TransactionManagerLocator;
+
+/**
+ * Support for integration as a 2nd level cache with an already existing
+ * JBoss Cache (TreeCache) instance. The ObjectName of the cache is
+ * provided via the <code>hibernate.treecache.mbean.object_name</code>
+ * configuration property.
+ * <p/>
+ * This class supports both optimistic and pessimistic locking, providing
+ * instances of <code>org.hibernate.cache.OptimisticCache</code> if the
+ * underlying JBoss Cache is configured for optimistic locking.
+ *
+ * @author Gavin King
+ * @author Brian Stansberry
+ * @author <a href="mailto:galder.zamarreno at jboss.com">Galder Zamarreno</a>
+ */
+public class JmxBoundTreeCacheProvider
+ extends org.hibernate.cache.TreeCacheProvider
+ implements CacheProvider
+{
+ private static final Logger log = Logger.getLogger(JmxBoundTreeCacheProvider.class);
+
+ private org.jboss.cache.TreeCache cache;
+ private boolean optimistic;
+ private TransactionManager transactionManager;
+
+ /**
+ * Construct and configure the Cache representation of a named cache region.
+ *
+ * @param regionName the name of the cache region
+ * @param properties configuration settings
+ * @return The Cache representation of the named cache region. If the
+ * underlying JBoss Cache is configured for optimistic locking,
+ * the returned object will also implement org.hibernate.cache.OptimisticCache.
+ * @throws org.hibernate.cache.CacheException
+ * Indicates an error building the cache region.
+ */
+ public Cache buildCache(String regionName, Properties properties) throws CacheException
+ {
+ CacheProperties cacheProperties = new CacheProperties(properties);
+
+ if (optimistic)
+ {
+ return new OptimisticJBCCache(cache, regionName, cacheProperties);
+ }
+ else
+ {
+ /* removed dependency on ejb3's TxUtil */
+ return new JBCCache(cache, regionName, cacheProperties, getTransactionManager(properties));
+ }
+ }
+
+ public boolean isMinimalPutsEnabledByDefault()
+ {
+ return true;
+ }
+
+ public long nextTimestamp()
+ {
+ return System.currentTimeMillis() / 100;
+ }
+
+ /**
+ * Find the underlying JBoss Cache TreeCache instance.
+ *
+ * @param properties All current config settings.
+ * If {@link #HIBERNATE_CACHE_OBJECT_NAME_PROPERTY} is provided,
+ * the value will be the expected name of the cache; otherwise
+ * {@link #DEFAULT_MBEAN_OBJECT_NAME} will be used.
+ * @throws org.hibernate.cache.CacheException
+ * Indicates a problem preparing cache for use.
+ */
+ public void start(Properties properties)
+ {
+ CacheProperties cacheProperties = new CacheProperties(properties);
+
+ try
+ {
+ ObjectName mbeanObjectName = new ObjectName(cacheProperties.getCacheObjectName());
+ TreeCacheMBean mbean = (TreeCacheMBean) MBeanProxyExt.create(TreeCacheMBean.class, mbeanObjectName, MBeanServerLocator.locateJBoss());
+ cache = mbean.getInstance();
+ if ("OPTIMISTIC".equals(cache.getNodeLockingScheme()))
+ {
+ optimistic = true;
+ log.debug("JBoss Cache is configured for optimistic locking; " +
+ "provided Cache implementations will also implement OptimisticCache");
+ }
+ }
+ catch (Exception e)
+ {
+ throw new CacheException(e);
+ }
+ }
+
+ public void stop()
+ {
+ }
+
+ public boolean isOptimistic()
+ {
+ return optimistic;
+ }
+
+ public TreeCache getUnderlyingCache()
+ {
+ return cache;
+ }
+
+ protected TransactionManager getTransactionManager(Properties properties)
+ {
+ if (transactionManager == null)
+ {
+ TransactionManagerLookup transactionManagerLookup = TransactionManagerLookupFactory.getTransactionManagerLookup(properties);
+ if (transactionManagerLookup!=null) {
+ transactionManager = transactionManagerLookup.getTransactionManager(properties);
+ }
+ else
+ {
+ transactionManager = TransactionManagerLocator.getInstance().locate();
+ }
+ }
+ return transactionManager;
+ }
+}
Copied: projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/OptimisticJmxBoundTreeCacheProvider.java (from rev 77602, projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/OptimisticTreeCacheProvider.java)
===================================================================
--- projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/OptimisticJmxBoundTreeCacheProvider.java (rev 0)
+++ projects/cluster/hibernate-jbc-cacheprovider/trunk/src/main/java/org/jboss/hibernate/jbc/cacheprovider/OptimisticJmxBoundTreeCacheProvider.java 2008-08-28 16:09:36 UTC (rev 77605)
@@ -0,0 +1,43 @@
+/*
+ * JBoss, the OpenSource J2EE webOS
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package org.jboss.hibernate.jbc.cacheprovider;
+
+import java.util.Properties;
+
+import org.hibernate.cache.CacheException;
+import org.jboss.logging.Logger;
+
+/**
+ * Trivial {@link JmxBoundTreeCacheProvider} subclass that logs a warning in
+ * {@link #start(Properties) start} if the underlying JBoss Cache
+ * is not configured for optimistic locking. Like the superclass,
+ * will provide working Cache implementations whether JBoss Cache is
+ * configured for optimistic locking or not; the only added behavior
+ * is the logging of the warning if the JBoss Cache configuration doesn't
+ * match the intent implied by the use of this class.
+ *
+ * @author <a href="mailto:galder.zamarreno at jboss.com">Galder Zamarreno</a>
+ * @author Brian Stansberry
+ * @deprecated {@link JmxBoundTreeCacheProvider} supports both optimistic and pessimistic
+ * cache configurations.
+ */
+public class OptimisticJmxBoundTreeCacheProvider extends JmxBoundTreeCacheProvider
+{
+ private static final Logger log = Logger.getLogger(OptimisticJmxBoundTreeCacheProvider.class);
+
+ public void start(Properties properties) throws CacheException
+ {
+ super.start(properties);
+
+ if (isOptimistic() == false)
+ {
+ log.warn("JBoss Cache is not configured for optimistic locking; " +
+ "provided Cache implementations therefore will not implement OptimisticCache");
+ }
+ }
+
+}
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