Merge tag 'v2.3.20' into testing
[gpl/argeo-jcr.git] / org.argeo.slc.jcr / src / org / argeo / slc / jcr / execution / JcrExecutionProcess.java
diff --git a/org.argeo.slc.jcr/src/org/argeo/slc/jcr/execution/JcrExecutionProcess.java b/org.argeo.slc.jcr/src/org/argeo/slc/jcr/execution/JcrExecutionProcess.java
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+package org.argeo.slc.jcr.execution;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.Property;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+
+import org.argeo.api.cms.CmsLog;
+import org.argeo.jcr.JcrUtils;
+import org.argeo.slc.NameVersion;
+import org.argeo.slc.SlcException;
+import org.argeo.slc.SlcNames;
+import org.argeo.slc.SlcTypes;
+import org.argeo.slc.execution.ExecutionProcess;
+import org.argeo.slc.execution.ExecutionStep;
+import org.argeo.slc.execution.RealizedFlow;
+import org.argeo.slc.jcr.SlcJcrUtils;
+import org.argeo.slc.runtime.ProcessThread;
+
+/** Execution process implementation based on a JCR node. */
+public class JcrExecutionProcess implements ExecutionProcess, SlcNames {
+       private final static CmsLog log = CmsLog.getLog(JcrExecutionProcess.class);
+       private final Node node;
+
+       private Long nextLogLine = 1l;
+
+       public JcrExecutionProcess(Node node) {
+               this.node = node;
+       }
+
+       public synchronized String getUuid() {
+               try {
+                       return node.getProperty(SLC_UUID).getString();
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot get uuid for " + node, e);
+               }
+       }
+
+       public synchronized String getStatus() {
+               try {
+                       return node.getProperty(SLC_STATUS).getString();
+               } catch (RepositoryException e) {
+                       log.error("Cannot get status: " + e);
+                       // we should re-throw exception because this information can
+                       // probably used for monitoring in case there are already unexpected
+                       // exceptions
+                       return UNKOWN;
+               }
+       }
+
+       public synchronized void setStatus(String status) {
+               try {
+                       node.setProperty(SLC_STATUS, status);
+                       // last modified properties needs to be manually updated
+                       // see https://issues.apache.org/jira/browse/JCR-2233
+                       JcrUtils.updateLastModified(node);
+                       node.getSession().save();
+               } catch (RepositoryException e) {
+                       JcrUtils.discardUnderlyingSessionQuietly(node);
+                       // we should re-throw exception because this information can
+                       // probably used for monitoring in case there are already unexpected
+                       // exceptions
+                       log.error("Cannot set status " + status + ": " + e);
+               }
+       }
+
+       /**
+        * Synchronized in order to make sure that there is no concurrent modification
+        * of {@link #nextLogLine}.
+        */
+       public synchronized void addSteps(List<ExecutionStep> steps) {
+               try {
+                       steps: for (ExecutionStep step : steps) {
+                               String type;
+                               if (step.getType().equals(ExecutionStep.TRACE))
+                                       type = SlcTypes.SLC_LOG_TRACE;
+                               else if (step.getType().equals(ExecutionStep.DEBUG))
+                                       type = SlcTypes.SLC_LOG_DEBUG;
+                               else if (step.getType().equals(ExecutionStep.INFO))
+                                       type = SlcTypes.SLC_LOG_INFO;
+                               else if (step.getType().equals(ExecutionStep.WARNING))
+                                       type = SlcTypes.SLC_LOG_WARNING;
+                               else if (step.getType().equals(ExecutionStep.ERROR))
+                                       type = SlcTypes.SLC_LOG_ERROR;
+                               else
+                                       // skip
+                                       continue steps;
+
+                               String relPath = SLC_LOG + '/' + step.getThread().replace('/', '_') + '/'
+                                               + step.getLocation().replace('.', '/');
+                               String path = node.getPath() + '/' + relPath;
+                               // clean special character
+                               // TODO factorize in JcrUtils
+                               path = path.replace('@', '_');
+
+                               Node location = JcrUtils.mkdirs(node.getSession(), path);
+                               Node logEntry = location.addNode(Long.toString(nextLogLine), type);
+                               logEntry.setProperty(SLC_MESSAGE, step.getLog());
+                               Calendar calendar = new GregorianCalendar();
+                               calendar.setTime(step.getTimestamp());
+                               logEntry.setProperty(SLC_TIMESTAMP, calendar);
+
+                               // System.out.println("Logged " + logEntry.getPath());
+
+                               nextLogLine++;
+                       }
+
+                       // last modified properties needs to be manually updated
+                       // see https://issues.apache.org/jira/browse/JCR-2233
+                       JcrUtils.updateLastModified(node);
+
+                       node.getSession().save();
+               } catch (Exception e) {
+                       JcrUtils.discardUnderlyingSessionQuietly(node);
+                       e.printStackTrace();
+               }
+       }
+
+       // public Node getNode() {
+       // return node;
+       // }
+
+       public List<RealizedFlow> getRealizedFlows() {
+               try {
+                       List<RealizedFlow> realizedFlows = new ArrayList<RealizedFlow>();
+                       Node rootRealizedFlowNode = node.getNode(SLC_FLOW);
+                       // we just manage one level for the time being
+                       NodeIterator nit = rootRealizedFlowNode.getNodes(SLC_FLOW);
+                       while (nit.hasNext()) {
+                               Node realizedFlowNode = nit.nextNode();
+
+                               if (realizedFlowNode.hasNode(SLC_ADDRESS)) {
+                                       String flowPath = realizedFlowNode.getNode(SLC_ADDRESS).getProperty(Property.JCR_PATH).getString();
+                                       NameVersion moduleNameVersion = SlcJcrUtils.moduleNameVersion(flowPath);
+                                       ((ProcessThread) Thread.currentThread()).getExecutionModulesManager().start(moduleNameVersion);
+                               }
+
+                               RealizedFlow realizedFlow = new JcrRealizedFlow(realizedFlowNode);
+                               if (realizedFlow != null)
+                                       realizedFlows.add(realizedFlow);
+                       }
+                       return realizedFlows;
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot get realized flows", e);
+               }
+       }
+
+       public String getNodePath() {
+               try {
+                       return node.getPath();
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot get process node path for " + node, e);
+               }
+       }
+
+       public Repository getRepository() {
+               try {
+                       return node.getSession().getRepository();
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot get process JCR repository for " + node, e);
+               }
+       }
+}