/*
* Copyright 2011 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.drools.persistence.infinispan;
import org.drools.persistence.api.PersistenceContext;
import org.drools.persistence.api.PersistenceContextManager;
import org.infinispan.Cache;
import org.infinispan.manager.DefaultCacheManager;
import org.kie.api.runtime.Environment;
import org.kie.api.runtime.EnvironmentName;
public class InfinispanPersistenceContextManager
implements
PersistenceContextManager {
Environment env;
private DefaultCacheManager cm;
private Cache<String, Object> appScopedCache;
protected Cache<String, Object> cmdScopedCache;
private boolean internalAppScopedCache;
private boolean internalCmdScopedCache;
public InfinispanPersistenceContextManager(Environment env) {
this.env = env;
this.cm = ( DefaultCacheManager ) env.get( EnvironmentName.ENTITY_MANAGER_FACTORY );
}
@SuppressWarnings("unchecked")
public PersistenceContext getApplicationScopedPersistenceContext() {
if ( this.appScopedCache == null ) {
// Use the App scoped EntityManager if the user has provided it, and it is open.
this.appScopedCache = (Cache<String, Object>) this.env.get( EnvironmentName.APP_SCOPED_ENTITY_MANAGER );
if ( this.appScopedCache == null ) {
internalAppScopedCache = true;
this.appScopedCache = this.cm.getCache("jbpm-configured-cache");
this.env.set( EnvironmentName.APP_SCOPED_ENTITY_MANAGER, this.appScopedCache );
} else {
internalAppScopedCache = false;
}
}
return new InfinispanPersistenceContext( appScopedCache );
}
public PersistenceContext getCommandScopedPersistenceContext() {
return new InfinispanPersistenceContext( this.cmdScopedCache );
}
public void beginCommandScopedEntityManager() {
@SuppressWarnings("unchecked")
Cache<String, Object> cmdScopedCache = (Cache<String, Object>) env.get( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER );
if ( cmdScopedCache == null) {
internalCmdScopedCache = true;
this.cmdScopedCache = this.cm.getCache("jbpm-configured-cache");
this.env.set( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER, this.cmdScopedCache );
cmdScopedCache = this.cmdScopedCache;
} else {
internalCmdScopedCache = false;
}
//cmdScopedCache.joinTransaction();?? TODO
//appScopedCache.joinTransaction();?? TODO
}
public void endCommandScopedEntityManager() {
if ( this.internalCmdScopedCache ) {
this.env.set( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER, null );
}
}
public void dispose() {
if ( this.internalAppScopedCache ) {
this.internalAppScopedCache = false;
this.env.set( EnvironmentName.APP_SCOPED_ENTITY_MANAGER, null );
this.appScopedCache = null;
}
if ( this.internalCmdScopedCache ) {
this.internalCmdScopedCache = false;
this.env.set( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER, null );
this.cmdScopedCache = null;
}
}
public void clearPersistenceContext() {
/*if (this.cmdScopedCache != null) {
this.cmdScopedCache.clear();
}*/ //TODO do nothing for now
}
}