+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * 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.argeo.slc.jcr.execution;
import java.util.List;
import java.util.UUID;
import javax.jcr.Node;
+import javax.jcr.Repository;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import org.argeo.jcr.JcrUtils;
import org.argeo.slc.SlcException;
+import org.argeo.slc.core.execution.ProcessThread;
import org.argeo.slc.core.runtime.DefaultAgent;
+import org.argeo.slc.execution.ExecutionModulesManager;
+import org.argeo.slc.execution.ExecutionProcess;
import org.argeo.slc.jcr.SlcJcrConstants;
+import org.argeo.slc.jcr.SlcNames;
import org.argeo.slc.jcr.SlcTypes;
import org.argeo.slc.runtime.SlcAgent;
import org.argeo.slc.runtime.SlcAgentFactory;
-/** SLC agent synchronizing with a JCR repository. */
-public class JcrAgent extends DefaultAgent implements SlcAgentFactory {
- private Session session;
+/** SLC VM agent synchronizing with a JCR repository. */
+public class JcrAgent extends DefaultAgent implements SlcAgentFactory, SlcNames {
+ private Repository repository;
+
+ /** only one agent per VM is currently supported */
+ private final String agentNodeName = "default";
/*
* LIFECYCLE
*/
protected String initAgentUuid() {
+ Session session = null;
try {
- Node vmAgentFactoryNode = JcrUtils.mkdirs(session,
- SlcJcrConstants.VM_AGENT_FACTORY_PATH);
- vmAgentFactoryNode.addMixin(SlcTypes.SLC_AGENT_PROXY);
- if (!vmAgentFactoryNode.hasNodes()) {
+ session = repository.login();
+ Node vmAgentFactoryNode = JcrUtils.mkdirsSafe(session,
+ SlcJcrConstants.VM_AGENT_FACTORY_PATH,
+ SlcTypes.SLC_AGENT_FACTORY);
+ if (!vmAgentFactoryNode.hasNode(agentNodeName)) {
String uuid = UUID.randomUUID().toString();
- vmAgentFactoryNode.addNode(uuid);
+ Node agentNode = vmAgentFactoryNode.addNode(agentNodeName,
+ SlcTypes.SLC_AGENT);
+ agentNode.setProperty(SLC_UUID, uuid);
}
session.save();
-
- return vmAgentFactoryNode.getNodes().nextNode().getName();
+ return vmAgentFactoryNode.getNode(agentNodeName)
+ .getProperty(SLC_UUID).getString();
} catch (RepositoryException e) {
+ JcrUtils.discardQuietly(session);
throw new SlcException("Cannot find JCR agent UUID", e);
} finally {
- JcrUtils.discardQuietly(session);
+ JcrUtils.logoutQuietly(session);
}
}
- public void dispose() {
+ @Override
+ public void destroy() {
+ super.destroy();
+ }
+ /*
+ * SLC AGENT
+ */
+ @Override
+ protected ProcessThread createProcessThread(
+ ThreadGroup processesThreadGroup,
+ ExecutionModulesManager modulesManager, ExecutionProcess process) {
+ return new JcrProcessThread(processesThreadGroup, modulesManager,
+ (JcrExecutionProcess) process);
}
/*
* SLC AGENT FACTORY
*/
public SlcAgent getAgent(String uuid) {
+ if (!uuid.equals(getAgentUuid()))
+ throw new SlcException("Internal UUID " + getAgentUuid()
+ + " is different from argument UUID " + uuid);
return this;
}
}
/*
- * BEAN METHODS
+ * UTILITIES
*/
- public void setSession(Session session) {
- this.session = session;
+ public String getNodePath() {
+ return SlcJcrConstants.VM_AGENT_FACTORY_PATH + '/' + getAgentNodeName();
+ }
+
+ /*
+ * BEAN
+ */
+ public String getAgentNodeName() {
+ return agentNodeName;
+ }
+
+ public void setRepository(Repository repository) {
+ this.repository = repository;
}
}