eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/controllers/ProcessController.java

   1 package org.argeo.slc.client.ui.controllers;
   2
   3 import java.util.HashMap;
   4 import java.util.Map;
   5
   6 import javax.jcr.Node;
   7 import javax.jcr.NodeIterator;
   8 import javax.jcr.Property;
   9 import javax.jcr.RepositoryException;
  10
  11 import org.apache.commons.logging.Log;
  12 import org.apache.commons.logging.LogFactory;
  13 import org.argeo.slc.SlcException;
  14 import org.argeo.slc.jcr.SlcJcrConstants;
  15 import org.argeo.slc.jcr.SlcJcrUtils;
  16 import org.argeo.slc.jcr.SlcNames;
  17 import org.argeo.slc.jcr.execution.JcrExecutionProcess;
  18 import org.argeo.slc.process.SlcExecution;
  19 import org.argeo.slc.runtime.SlcAgent;
  20 import org.argeo.slc.runtime.SlcAgentFactory;
  21 import org.argeo.slc.services.SlcExecutionService;
  22
  23 public class ProcessController {
  24         private final static Log log = LogFactory.getLog(ProcessController.class);
  25         private SlcExecutionService slcExecutionService;
  26         private Map<String, SlcAgentFactory> agentFactories = new HashMap<String, SlcAgentFactory>();
  27
  28         public void execute(SlcAgent agent, SlcExecution slcExecution) {
  29                 slcExecutionService.newExecution(slcExecution);
  30                 agent.process(slcExecution);
  31                 if (log.isDebugEnabled())
  32                         log.debug("SlcExcution " + slcExecution.getUuid()
  33                                         + " launched on Agent " + agent.toString());
  34         }
  35
  36         public void process(Node processNode) {
  37                 try {
  38                         // we currently only deal with single agents
  39                         Node flowNode = processNode.getNode(SlcNames.SLC_FLOW);
  40                         NodeIterator nit = flowNode.getNodes();
  41                         if (nit.hasNext()) {
  42                                 Node firstFlow = nit.nextNode();
  43                                 // we assume there is an nt:address
  44                                 String firstFlowPath = firstFlow.getNode(SlcNames.SLC_ADDRESS)
  45                                                 .getProperty(Property.JCR_PATH).getString();
  46                                 String agentFactoryPath = SlcJcrUtils
  47                                                 .flowAgentFactoryPath(firstFlowPath);
  48                                 if (!agentFactories.containsKey(agentFactoryPath))
  49                                         throw new SlcException("No agent factory registered under "
  50                                                         + agentFactoryPath);
  51                                 SlcAgentFactory agentFactory = agentFactories
  52                                                 .get(agentFactoryPath);
  53                                 String agentUuid = ((Node) processNode
  54                                                 .getAncestor(SlcJcrUtils.AGENT_FACTORY_DEPTH + 1))
  55                                                 .getName();
  56
  57                                 // process
  58                                 SlcAgent slcAgent = agentFactory.getAgent(agentUuid);
  59                                 slcAgent.process(new JcrExecutionProcess(processNode));
  60                         }
  61                 } catch (RepositoryException e) {
  62                         throw new SlcException("Cannot execute " + processNode, e);
  63                 }
  64         }
  65
  66         public void setSlcExecutionService(SlcExecutionService slcExecutionService) {
  67                 this.slcExecutionService = slcExecutionService;
  68         }
  69
  70         public synchronized void register(SlcAgentFactory agentFactory,
  71                         Map<String, String> properties) {
  72                 String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
  73                 if (log.isDebugEnabled())
  74                         log.debug("Agent factory registered under " + path);
  75                 agentFactories.put(path, agentFactory);
  76         }
  77
  78         public synchronized void unregister(SlcAgentFactory agentFactory,
  79                         Map<String, String> properties) {
  80                 String path = properties.get(SlcJcrConstants.PROPERTY_PATH);
  81                 if (log.isDebugEnabled())
  82                         log.debug("Agent factory unregistered from " + path);
  83                 agentFactories.remove(path);
  84         }
  85 }