--- /dev/null
+package org.argeo.slc.jcr.execution;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.UUID;
+
+import javax.jcr.Node;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.security.Privilege;
+
+import org.argeo.jcr.JcrUtils;
+import org.argeo.slc.SlcConstants;
+import org.argeo.slc.SlcException;
+import org.argeo.slc.SlcNames;
+import org.argeo.slc.SlcTypes;
+import org.argeo.slc.runtime.DefaultAgent;
+import org.argeo.slc.execution.ExecutionModulesManager;
+import org.argeo.slc.execution.ExecutionProcess;
+import org.argeo.slc.jcr.SlcJcrConstants;
+import org.argeo.slc.runtime.ProcessThread;
+
+/** SLC VM agent synchronizing with a JCR repository. */
+public class JcrAgent extends DefaultAgent implements SlcNames {
+ // final static String ROLE_REMOTE = "ROLE_REMOTE";
+ final static String NODE_REPO_URI = "argeo.node.repo.uri";
+
+ private Repository repository;
+
+ private String agentNodeName = "default";
+
+ /*
+ * LIFECYCLE
+ */
+ protected String initAgentUuid() {
+ Session session = null;
+ try {
+ session = repository.login();
+
+ String agentFactoryPath = getAgentFactoryPath();
+ Node vmAgentFactoryNode = JcrUtils.mkdirsSafe(session, agentFactoryPath, SlcTypes.SLC_AGENT_FACTORY);
+ JcrUtils.addPrivilege(session, SlcJcrConstants.SLC_BASE_PATH, SlcConstants.ROLE_SLC, Privilege.JCR_ALL);
+ if (!vmAgentFactoryNode.hasNode(agentNodeName)) {
+ String uuid = UUID.randomUUID().toString();
+ Node agentNode = vmAgentFactoryNode.addNode(agentNodeName, SlcTypes.SLC_AGENT);
+ agentNode.setProperty(SLC_UUID, uuid);
+ }
+ session.save();
+ 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.logoutQuietly(session);
+ }
+ }
+
+ @Override
+ public void destroy() {
+ super.destroy();
+ }
+
+ /*
+ * SLC AGENT
+ */
+ @Override
+ protected ProcessThread createProcessThread(ThreadGroup processesThreadGroup,
+ ExecutionModulesManager modulesManager, ExecutionProcess process) {
+ if (process instanceof JcrExecutionProcess)
+ return new JcrProcessThread(processesThreadGroup, modulesManager, (JcrExecutionProcess) process);
+ else
+ return super.createProcessThread(processesThreadGroup, modulesManager, process);
+ }
+
+ /*
+ * UTILITIES
+ */
+ public String getNodePath() {
+ return getAgentFactoryPath() + '/' + getAgentNodeName();
+ }
+
+ public String getAgentFactoryPath() {
+ try {
+ Boolean isRemote = System.getProperty(NODE_REPO_URI) != null;
+ String agentFactoryPath;
+ if (isRemote) {
+ InetAddress localhost = InetAddress.getLocalHost();
+ agentFactoryPath = SlcJcrConstants.AGENTS_BASE_PATH + "/" + localhost.getCanonicalHostName();
+
+ if (agentFactoryPath.equals(SlcJcrConstants.VM_AGENT_FACTORY_PATH))
+ throw new SlcException("Unsupported hostname " + localhost.getCanonicalHostName());
+ } else {// local
+ agentFactoryPath = SlcJcrConstants.VM_AGENT_FACTORY_PATH;
+ }
+ return agentFactoryPath;
+ } catch (UnknownHostException e) {
+ throw new SlcException("Cannot find agent factory base path", e);
+ }
+ }
+
+ /*
+ * BEAN
+ */
+ public String getAgentNodeName() {
+ return agentNodeName;
+ }
+
+ public void setRepository(Repository repository) {
+ this.repository = repository;
+ }
+
+ public void setAgentNodeName(String agentNodeName) {
+ this.agentNodeName = agentNodeName;
+ }
+}