001 /*
002 * JBoss DNA (http://www.jboss.org/dna)
003 * See the COPYRIGHT.txt file distributed with this work for information
004 * regarding copyright ownership. Some portions may be licensed
005 * to Red Hat, Inc. under one or more contributor license agreements.
006 * See the AUTHORS.txt file in the distribution for a full listing of
007 * individual contributors.
008 *
009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA
010 * is licensed to you under the terms of the GNU Lesser General Public License as
011 * published by the Free Software Foundation; either version 2.1 of
012 * the License, or (at your option) any later version.
013 *
014 * JBoss DNA is distributed in the hope that it will be useful,
015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017 * Lesser General Public License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this software; if not, write to the Free
021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
023 */
024 package org.jboss.dna.connector.jbosscache;
025
026 import java.util.concurrent.TimeUnit;
027 import javax.transaction.xa.XAResource;
028 import org.jboss.dna.graph.ExecutionContext;
029 import org.jboss.dna.graph.cache.CachePolicy;
030 import org.jboss.dna.graph.connector.RepositoryConnection;
031 import org.jboss.dna.graph.connector.RepositorySourceException;
032 import org.jboss.dna.graph.observe.Observer;
033 import org.jboss.dna.graph.request.Request;
034 import org.jboss.dna.graph.request.processor.RequestProcessor;
035
036 /**
037 * The repository connection to a JBoss Cache instance.
038 *
039 * @author Randall Hauch
040 */
041 public class JBossCacheConnection implements RepositoryConnection {
042
043 private final JBossCacheSource source;
044 private final JBossCacheWorkspaces workspaces;
045
046 JBossCacheConnection( JBossCacheSource source,
047 JBossCacheWorkspaces workspaces ) {
048 assert source != null;
049 assert workspaces != null;
050 this.source = source;
051 this.workspaces = workspaces;
052 }
053
054 /**
055 * {@inheritDoc}
056 */
057 public String getSourceName() {
058 return source.getName();
059 }
060
061 /**
062 * {@inheritDoc}
063 */
064 public CachePolicy getDefaultCachePolicy() {
065 return source.getDefaultCachePolicy();
066 }
067
068 /**
069 * {@inheritDoc}
070 */
071 public XAResource getXAResource() {
072 return null;
073 }
074
075 /**
076 * {@inheritDoc}
077 */
078 public boolean ping( long time,
079 TimeUnit unit ) {
080 return true;
081 }
082
083 /**
084 * {@inheritDoc}
085 */
086 public void close() {
087 // do nothing
088 }
089
090 /**
091 * {@inheritDoc}
092 *
093 * @see org.jboss.dna.graph.connector.RepositoryConnection#execute(org.jboss.dna.graph.ExecutionContext,
094 * org.jboss.dna.graph.request.Request)
095 */
096 public void execute( final ExecutionContext context,
097 final Request request ) throws RepositorySourceException {
098 Observer observer = source.getObserver();
099 RequestProcessor processor = new JBossCacheRequestProcessor(getSourceName(), context, observer, workspaces,
100 source.getNameOfDefaultWorkspace(),
101 source.isCreatingWorkspacesAllowed());
102 try {
103 processor.process(request);
104 } finally {
105 processor.close();
106 }
107 }
108 }