Improve logging

[gpl/argeo-slc.git] / eclipse / plugins / org.argeo.slc.client.ui / src / main / java / org / argeo / slc / client / ui / controllers / ProcessController.java

diff --git a/eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/controllers/ProcessController.java b/eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/controllers/ProcessController.java
index 311b64ac0ce991a113f2470cfbb1ba5e91c4a965..328282c54921bb094d29b7671c4954fc6cc6fb3b 100644 (file)
--- a/eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/controllers/ProcessController.java
+++ b/eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/controllers/ProcessController.java
@@ -1,25 +1,83 @@
 package org.argeo.slc.client.ui.controllers;
 
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.Property;
+
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.argeo.slc.process.SlcExecution;
+import org.argeo.slc.SlcException;
+import org.argeo.slc.execution.ExecutionProcess;
+import org.argeo.slc.jcr.SlcJcrConstants;
+import org.argeo.slc.jcr.SlcJcrUtils;
+import org.argeo.slc.jcr.SlcNames;
+import org.argeo.slc.jcr.execution.JcrExecutionProcess;
 import org.argeo.slc.runtime.SlcAgent;
-import org.argeo.slc.services.SlcExecutionService;
+import org.argeo.slc.runtime.SlcAgentFactory;
 
+/**
+ * We use a separate class (not in UI components) so that it can be a singleton
+ * in an application context.
+ */
 public class ProcessController {
        private final static Log log = LogFactory.getLog(ProcessController.class);
-       private SlcExecutionService slcExecutionService;
+       private Map<String, SlcAgentFactory> agentFactories = new HashMap<String, SlcAgentFactory>();
 
-       public void execute(SlcAgent agent, SlcExecution slcExecution) {
-               slcExecutionService.newExecution(slcExecution);
-               agent.runSlcExecution(slcExecution);
-               if (log.isDebugEnabled())
-                       log.debug("SlcExcution " + slcExecution.getUuid()
-                                       + " launched on Agent " + agent.toString());
+       public ExecutionProcess process(Node processNode) {
+               JcrExecutionProcess process = new JcrExecutionProcess(processNode);
+               try {
+                       // we currently only deal with single agents
+                       Node realizedFlowNode = processNode.getNode(SlcNames.SLC_FLOW);
+                       NodeIterator nit = realizedFlowNode.getNodes();
+                       if (nit.hasNext()) {
+                               // TODO find a better way to determine which agent to use
+                               // currently we check the agent of the first registered flow
+                               Node firstRealizedFlow = nit.nextNode();
+                               // we assume there is an nt:address
+                               String firstFlowPath = firstRealizedFlow
+                                               .getNode(SlcNames.SLC_ADDRESS)
+                                               .getProperty(Property.JCR_PATH).getString();
+                               Node flowNode = processNode.getSession().getNode(firstFlowPath);
+                               String agentFactoryPath = SlcJcrUtils
+                                               .flowAgentFactoryPath(firstFlowPath);
+                               if (!agentFactories.containsKey(agentFactoryPath))
+                                       throw new SlcException("No agent factory registered under "
+                                                       + agentFactoryPath);
+                               SlcAgentFactory agentFactory = agentFactories
+                                               .get(agentFactoryPath);
+                               Node agentNode = ((Node) flowNode
+                                               .getAncestor(SlcJcrUtils.AGENT_FACTORY_DEPTH + 1));
+                               String agentUuid = agentNode.getProperty(SlcNames.SLC_UUID)
+                                               .getString();
+
+                               // process
+                               SlcAgent slcAgent = agentFactory.getAgent(agentUuid);
+                               slcAgent.process(process);
+                       }
+                       return process;
+               } catch (Exception e) {
+                       if (!process.getStatus().equals(ExecutionProcess.ERROR))
+                               process.setStatus(ExecutionProcess.ERROR);
+                       throw new SlcException("Cannot execute " + processNode, e);
+               }
        }
 
-       public void setSlcExecutionService(SlcExecutionService slcExecutionService) {
-               this.slcExecutionService = slcExecutionService;
+       public synchronized void register(SlcAgentFactory agentFactory,
+                       Map<String, String> properties) {
+               String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
+               if (log.isDebugEnabled())
+                       log.debug("Agent factory registered under " + path);
+               agentFactories.put(path, agentFactory);
        }
 
+       public synchronized void unregister(SlcAgentFactory agentFactory,
+                       Map<String, String> properties) {
+               String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
+               if (log.isDebugEnabled())
+                       log.debug("Agent factory unregistered from " + path);
+               agentFactories.remove(path);
+       }
 }