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.federation;
025
026 import java.util.concurrent.TimeUnit;
027 import javax.transaction.xa.XAResource;
028 import net.jcip.annotations.ThreadSafe;
029 import org.jboss.dna.graph.ExecutionContext;
030 import org.jboss.dna.graph.cache.CachePolicy;
031 import org.jboss.dna.graph.connector.RepositoryConnection;
032 import org.jboss.dna.graph.connector.RepositorySourceException;
033 import org.jboss.dna.graph.request.Request;
034 import org.jboss.dna.graph.request.processor.RequestProcessor;
035
036 /**
037 * @author Randall Hauch
038 */
039 @ThreadSafe
040 public class FederatedRepositoryConnection implements RepositoryConnection {
041
042 private final FederatedRepository repository;
043 private final String sourceName;
044
045 protected FederatedRepositoryConnection( FederatedRepository repository,
046 String sourceName ) {
047 assert sourceName != null;
048 assert repository != null;
049 this.sourceName = sourceName;
050 this.repository = repository;
051 this.repository.register(this);
052 }
053
054 /**
055 * @return repository
056 */
057 protected FederatedRepository getRepository() {
058 return this.repository;
059 }
060
061 /**
062 * {@inheritDoc}
063 */
064 public String getSourceName() {
065 return this.sourceName;
066 }
067
068 /**
069 * {@inheritDoc}
070 */
071 public CachePolicy getDefaultCachePolicy() {
072 return null;
073 }
074
075 /**
076 * {@inheritDoc}
077 */
078 public XAResource getXAResource() {
079 return null;
080 }
081
082 /**
083 * {@inheritDoc}
084 */
085 public boolean ping( long time,
086 TimeUnit unit ) {
087 return this.repository.isRunning();
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( ExecutionContext context,
097 Request request ) throws RepositorySourceException {
098 if (!this.repository.isRunning()) {
099 throw new RepositorySourceException(FederationI18n.repositoryHasBeenShutDown.text(this.repository.getName()));
100 }
101 if (request == null) return;
102
103 RequestProcessor processor = this.repository.getProcessor(context, sourceName);
104 assert processor != null;
105 try {
106 processor.process(request);
107 } finally {
108 processor.close();
109 }
110 }
111
112 /**
113 * {@inheritDoc}
114 */
115 public void close() {
116 }
117
118 }