Example #1
0
  /** Load all the deployment units out of the store. Called on start-up. */
  public void loadAll() {
    final ArrayList<ProcessConfImpl> loaded = new ArrayList<ProcessConfImpl>();
    exec(
        new Callable<Object>() {
          public Object call(ConfStoreConnection conn) {
            Collection<DeploymentUnitDAO> dus = conn.getDeploymentUnits();
            for (DeploymentUnitDAO du : dus)
              try {
                loaded.addAll(load(du));
              } catch (Exception ex) {
                __log.error("Error loading DU from store: " + du.getName(), ex);
              }
            return null;
          }
        });

    // Dispatch DISABLED, RETIRED and ACTIVE events in that order
    Collections.sort(
        loaded,
        new Comparator<ProcessConf>() {
          public int compare(ProcessConf o1, ProcessConf o2) {
            return stateValue(o1.getState()) - stateValue(o2.getState());
          }

          int stateValue(ProcessState state) {
            if (ProcessState.DISABLED.equals(state)) return 0;
            if (ProcessState.RETIRED.equals(state)) return 1;
            if (ProcessState.ACTIVE.equals(state)) return 2;
            throw new IllegalStateException("Unexpected process state: " + state);
          }
        });
    for (ProcessConfImpl p : loaded) {
      try {
        fireStateChange(p.getProcessId(), p.getState(), p.getDeploymentUnit().getName());
      } catch (Exception except) {
        __log.error(
            "Error while activating process: pid="
                + p.getProcessId()
                + " package="
                + p.getDeploymentUnit().getName(),
            except);
      }
    }
  }
Example #2
0
  /** Deploys a process. */
  public Collection<QName> deploy(
      final File deploymentUnitDirectory,
      boolean activate,
      String duName,
      boolean autoincrementVersion) {
    __log.info(__msgs.msgDeployStarting(deploymentUnitDirectory));

    final Date deployDate = new Date();

    // Create the DU and compile/scan it before acquiring lock.
    final DeploymentUnitDir du = new DeploymentUnitDir(deploymentUnitDirectory);
    if (duName != null) {
      // Override the package name if given from the parameter
      du.setName(duName);
    }

    long version;
    if (autoincrementVersion || du.getStaticVersion() == -1) {
      // Process and DU use a monotonically increased single version number by default.
      try {
        version = getCurrentVersion();
      } finally {
        // we need to reset the current version thread local value.
        _currentVersion.set(null);
      }
    } else {
      version = du.getStaticVersion();
    }
    du.setVersion(version);

    try {
      du.compile();
    } catch (CompilationException ce) {
      String errmsg = __msgs.msgDeployFailCompileErrors(ce);
      __log.error(errmsg, ce);
      throw new ContextException(errmsg, ce);
    }

    du.scan();
    final DeployDocument dd = du.getDeploymentDescriptor();
    final ArrayList<ProcessConfImpl> processes = new ArrayList<ProcessConfImpl>();
    Collection<QName> deployed;

    _rw.writeLock().lock();

    try {
      if (_deploymentUnits.containsKey(du.getName())) {
        String errmsg = __msgs.msgDeployFailDuplicateDU(du.getName());
        __log.error(errmsg);
        throw new ContextException(errmsg);
      }

      retirePreviousPackageVersions(du);

      for (TDeployment.Process processDD : dd.getDeploy().getProcessArray()) {
        QName pid = toPid(processDD.getName(), version);

        if (_processes.containsKey(pid)) {
          String errmsg = __msgs.msgDeployFailDuplicatePID(processDD.getName(), du.getName());
          __log.error(errmsg);
          throw new ContextException(errmsg);
        }

        QName type = processDD.getType() != null ? processDD.getType() : processDD.getName();

        CBPInfo cbpInfo = du.getCBPInfo(type);
        if (cbpInfo == null) {
          String errmsg = __msgs.msgDeployFailedProcessNotFound(processDD.getName(), du.getName());
          __log.error(errmsg);
          throw new ContextException(errmsg);
        }

        ProcessConfImpl pconf =
            new ProcessConfImpl(
                pid,
                processDD.getName(),
                version,
                du,
                processDD,
                deployDate,
                calcInitialProperties(du.getProperties(), processDD),
                calcInitialState(processDD),
                eprContext,
                _configDir,
                generateProcessEventsAll);
        processes.add(pconf);
      }

      _deploymentUnits.put(du.getName(), du);

      for (ProcessConfImpl process : processes) {
        __log.info(__msgs.msgProcessDeployed(du.getDeployDir(), process.getProcessId()));
        _processes.put(process.getProcessId(), process);
      }

    } finally {
      _rw.writeLock().unlock();
    }

    // Do the deployment in the DB. We need this so that we remember deployments across system
    // shutdowns.
    // We don't fail if there is a DB error, simply print some errors.
    deployed =
        exec(
            new Callable<Collection<QName>>() {
              public Collection<QName> call(ConfStoreConnection conn) {
                // Check that this deployment unit is not deployed.
                DeploymentUnitDAO dudao = conn.getDeploymentUnit(du.getName());
                if (dudao != null) {
                  String errmsg = "Database out of synch for DU " + du.getName();
                  __log.warn(errmsg);
                  dudao.delete();
                }

                dudao = conn.createDeploymentUnit(du.getName());
                try {
                  dudao.setDeploymentUnitDir(deploymentUnitDirectory.getCanonicalPath());
                } catch (IOException e1) {
                  String errmsg =
                      "Error getting canonical path for "
                          + du.getName()
                          + "; deployment unit will not be available after restart!";
                  __log.error(errmsg);
                }

                ArrayList<QName> deployed = new ArrayList<QName>();
                // Going trough each process declared in the dd
                for (ProcessConfImpl pc : processes) {
                  try {
                    ProcessConfDAO newDao =
                        dudao.createProcess(pc.getProcessId(), pc.getType(), pc.getVersion());
                    newDao.setState(pc.getState());
                    for (Map.Entry<QName, Node> prop : pc.getProcessProperties().entrySet()) {
                      newDao.setProperty(prop.getKey(), DOMUtils.domToString(prop.getValue()));
                    }
                    deployed.add(pc.getProcessId());
                  } catch (Throwable e) {
                    String errmsg =
                        "Error persisting deployment record for "
                            + pc.getProcessId()
                            + "; process will not be available after restart!";
                    __log.error(errmsg, e);
                  }
                }
                return deployed;
              }
            });

    _rw.readLock().lock();
    boolean readLockHeld = true;
    try {
      for (ProcessConfImpl process : processes) {
        fireEvent(
            new ProcessStoreEvent(
                ProcessStoreEvent.Type.DEPLOYED,
                process.getProcessId(),
                process.getDeploymentUnit().getName()));
        fireStateChange(
            process.getProcessId(), process.getState(), process.getDeploymentUnit().getName());
      }
    } catch (Exception e) {
      // need to unlock as undeploy operation will need a writeLock
      _rw.readLock().unlock();
      readLockHeld = false;

      // A problem at that point means that engine deployment failed, we don't want the store to
      // keep the du
      __log.warn("Deployment failed within the engine, store undeploying process.", e);
      undeploy(deploymentUnitDirectory);
      if (e instanceof ContextException) throw (ContextException) e;
      else throw new ContextException("Deployment failed within the engine. " + e.getMessage(), e);
    } finally {
      if (readLockHeld) _rw.readLock().unlock();
    }

    return deployed;
  }