public StreamResource buildStreamResource(
      ProcessInstance processInstance,
      RepositoryService repositoryService,
      RuntimeService runtimeService) {

    StreamResource imageResource = null;

    ProcessDefinitionEntity processDefinition =
        (ProcessDefinitionEntity)
            ((RepositoryServiceImpl) repositoryService)
                .getDeployedProcessDefinition(processInstance.getProcessDefinitionId());

    if (processDefinition != null && processDefinition.isGraphicalNotationDefined()) {
      InputStream definitionImageStream =
          ProcessDiagramGenerator.generateDiagram(
              processDefinition,
              "png",
              runtimeService.getActiveActivityIds(processInstance.getId()));

      StreamSource streamSource = new InputStreamStreamSource(definitionImageStream);

      // Create image name
      String imageExtension = extractImageExtension(processDefinition.getDiagramResourceName());
      String fileName = processInstance.getId() + UUID.randomUUID() + "." + imageExtension;

      imageResource = new StreamResource(streamSource, fileName, ExplorerApp.get());
    }
    return imageResource;
  }
  protected void addProcessImage() {
    ProcessDefinitionEntity processDefinitionEntity =
        (ProcessDefinitionEntity)
            ((RepositoryServiceImpl) repositoryService)
                .getDeployedProcessDefinition(processDefinition.getId());

    // Only show when graphical notation is defined
    if (processDefinitionEntity != null) {

      boolean didDrawImage = false;

      if (ExplorerApp.get().isUseJavascriptDiagram()) {
        try {

          final InputStream definitionStream =
              repositoryService.getResourceAsStream(
                  processDefinition.getDeploymentId(), processDefinition.getResourceName());
          XMLInputFactory xif = XMLInputFactory.newInstance();
          XMLStreamReader xtr = xif.createXMLStreamReader(definitionStream);
          BpmnModel bpmnModel = new BpmnXMLConverter().convertToBpmnModel(xtr);

          if (bpmnModel.getFlowLocationMap().size() > 0) {

            int maxX = 0;
            int maxY = 0;
            for (String key : bpmnModel.getLocationMap().keySet()) {
              GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(key);
              double elementX = graphicInfo.getX() + graphicInfo.getWidth();
              if (maxX < elementX) {
                maxX = (int) elementX;
              }
              double elementY = graphicInfo.getY() + graphicInfo.getHeight();
              if (maxY < elementY) {
                maxY = (int) elementY;
              }
            }

            Panel imagePanel = new Panel(); // using panel for scrollbars
            imagePanel.addStyleName(Reindeer.PANEL_LIGHT);
            imagePanel.setWidth(100, UNITS_PERCENTAGE);
            imagePanel.setHeight(100, UNITS_PERCENTAGE);
            URL explorerURL = ExplorerApp.get().getURL();
            URL url =
                new URL(
                    explorerURL.getProtocol(),
                    explorerURL.getHost(),
                    explorerURL.getPort(),
                    explorerURL.getPath().replace("/ui", "")
                        + "diagram-viewer/index.html?processDefinitionId="
                        + processDefinition.getId()
                        + "&processInstanceId="
                        + processInstance.getId());
            Embedded browserPanel = new Embedded("", new ExternalResource(url));
            browserPanel.setType(Embedded.TYPE_BROWSER);
            browserPanel.setWidth(maxX + 350 + "px");
            browserPanel.setHeight(maxY + 220 + "px");

            HorizontalLayout panelLayoutT = new HorizontalLayout();
            panelLayoutT.setSizeUndefined();
            imagePanel.setContent(panelLayoutT);
            imagePanel.addComponent(browserPanel);

            panelLayout.addComponent(imagePanel);

            didDrawImage = true;
          }

        } catch (Exception e) {
          LOGGER.error("Error loading process diagram component", e);
        }
      }

      if (didDrawImage == false && processDefinitionEntity.isGraphicalNotationDefined()) {

        StreamResource diagram =
            new ProcessDefinitionImageStreamResourceBuilder()
                .buildStreamResource(processInstance, repositoryService, runtimeService);

        if (diagram != null) {
          Label header = new Label(i18nManager.getMessage(Messages.PROCESS_HEADER_DIAGRAM));
          header.addStyleName(ExplorerLayout.STYLE_H3);
          header.addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK);
          header.addStyleName(ExplorerLayout.STYLE_NO_LINE);
          panelLayout.addComponent(header);

          Embedded embedded = new Embedded(null, diagram);
          embedded.setType(Embedded.TYPE_IMAGE);
          embedded.setSizeUndefined();

          Panel imagePanel = new Panel(); // using panel for scrollbars
          imagePanel.setScrollable(true);
          imagePanel.addStyleName(Reindeer.PANEL_LIGHT);
          imagePanel.setWidth(100, UNITS_PERCENTAGE);
          imagePanel.setHeight(100, UNITS_PERCENTAGE);

          HorizontalLayout panelLayoutT = new HorizontalLayout();
          panelLayoutT.setSizeUndefined();
          imagePanel.setContent(panelLayoutT);
          imagePanel.addComponent(embedded);

          panelLayout.addComponent(imagePanel);
        }
      }
    }
  }
Example #3
0
  public void deploy(DeploymentEntity deployment, Map<String, Object> deploymentSettings) {
    log.debug("Processing deployment {}", deployment.getName());

    List<ProcessDefinitionEntity> processDefinitions = new ArrayList<ProcessDefinitionEntity>();
    Map<String, ResourceEntity> resources = deployment.getResources();
    Map<String, BpmnModel> bpmnModelMap = new HashMap<String, BpmnModel>();

    final ProcessEngineConfigurationImpl processEngineConfiguration =
        Context.getProcessEngineConfiguration();
    for (String resourceName : resources.keySet()) {

      log.info("Processing resource {}", resourceName);
      if (isBpmnResource(resourceName)) {
        ResourceEntity resource = resources.get(resourceName);
        byte[] bytes = resource.getBytes();
        ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);

        BpmnParse bpmnParse =
            bpmnParser
                .createParse()
                .sourceInputStream(inputStream)
                .setSourceSystemId(resourceName)
                .deployment(deployment)
                .name(resourceName);

        if (deploymentSettings != null) {

          // Schema validation if needed
          if (deploymentSettings.containsKey(DeploymentSettings.IS_BPMN20_XSD_VALIDATION_ENABLED)) {
            bpmnParse.setValidateSchema(
                (Boolean)
                    deploymentSettings.get(DeploymentSettings.IS_BPMN20_XSD_VALIDATION_ENABLED));
          }

          // Process validation if needed
          if (deploymentSettings.containsKey(DeploymentSettings.IS_PROCESS_VALIDATION_ENABLED)) {
            bpmnParse.setValidateProcess(
                (Boolean) deploymentSettings.get(DeploymentSettings.IS_PROCESS_VALIDATION_ENABLED));
          }

        } else {
          // On redeploy, we assume it is validated at the first deploy
          bpmnParse.setValidateSchema(false);
          bpmnParse.setValidateProcess(false);
        }

        bpmnParse.execute();

        for (ProcessDefinitionEntity processDefinition : bpmnParse.getProcessDefinitions()) {
          processDefinition.setResourceName(resourceName);

          if (deployment.getTenantId() != null) {
            processDefinition.setTenantId(
                deployment.getTenantId()); // process definition inherits the tenant id
          }

          String diagramResourceName =
              getDiagramResourceForProcess(resourceName, processDefinition.getKey(), resources);

          // Only generate the resource when deployment is new to prevent modification of deployment
          // resources
          // after the process-definition is actually deployed. Also to prevent resource-generation
          // failure every
          // time the process definition is added to the deployment-cache when diagram-generation
          // has failed the first time.
          if (deployment.isNew()) {
            if (processEngineConfiguration.isCreateDiagramOnDeploy()
                && diagramResourceName == null
                && processDefinition.isGraphicalNotationDefined()) {
              try {
                byte[] diagramBytes =
                    IoUtil.readInputStream(
                        processEngineConfiguration
                            .getProcessDiagramGenerator()
                            .generateDiagram(
                                bpmnParse.getBpmnModel(),
                                "png",
                                processEngineConfiguration.getActivityFontName(),
                                processEngineConfiguration.getLabelFontName(),
                                processEngineConfiguration.getClassLoader()),
                        null);
                diagramResourceName =
                    getProcessImageResourceName(resourceName, processDefinition.getKey(), "png");
                createResource(diagramResourceName, diagramBytes, deployment);
              } catch (
                  Throwable
                      t) { // if anything goes wrong, we don't store the image (the process will
                           // still be executable).
                log.warn(
                    "Error while generating process diagram, image will not be stored in repository",
                    t);
              }
            }
          }

          processDefinition.setDiagramResourceName(diagramResourceName);
          processDefinitions.add(processDefinition);
          bpmnModelMap.put(processDefinition.getKey(), bpmnParse.getBpmnModel());
        }
      }
    }

    // check if there are process definitions with the same process key to prevent database unique
    // index violation
    List<String> keyList = new ArrayList<String>();
    for (ProcessDefinitionEntity processDefinition : processDefinitions) {
      if (keyList.contains(processDefinition.getKey())) {
        throw new ActivitiException(
            "The deployment contains process definitions with the same key (process id atrribute), this is not allowed");
      }
      keyList.add(processDefinition.getKey());
    }

    CommandContext commandContext = Context.getCommandContext();
    ProcessDefinitionEntityManager processDefinitionManager =
        commandContext.getProcessDefinitionEntityManager();
    DbSqlSession dbSqlSession = commandContext.getSession(DbSqlSession.class);
    for (ProcessDefinitionEntity processDefinition : processDefinitions) {
      List<TimerEntity> timers = new ArrayList<TimerEntity>();
      if (deployment.isNew()) {
        int processDefinitionVersion;

        ProcessDefinitionEntity latestProcessDefinition = null;
        if (processDefinition.getTenantId() != null
            && !ProcessEngineConfiguration.NO_TENANT_ID.equals(processDefinition.getTenantId())) {
          latestProcessDefinition =
              processDefinitionManager.findLatestProcessDefinitionByKeyAndTenantId(
                  processDefinition.getKey(), processDefinition.getTenantId());
        } else {
          latestProcessDefinition =
              processDefinitionManager.findLatestProcessDefinitionByKey(processDefinition.getKey());
        }

        if (latestProcessDefinition != null) {
          processDefinitionVersion = latestProcessDefinition.getVersion() + 1;
        } else {
          processDefinitionVersion = 1;
        }

        processDefinition.setVersion(processDefinitionVersion);
        processDefinition.setDeploymentId(deployment.getId());

        String nextId = idGenerator.getNextId();
        String processDefinitionId =
            processDefinition.getKey()
                + ":"
                + processDefinition.getVersion()
                + ":"
                + nextId; // ACT-505

        // ACT-115: maximum id length is 64 charcaters
        if (processDefinitionId.length() > 64) {
          processDefinitionId = nextId;
        }
        processDefinition.setId(processDefinitionId);

        if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
          commandContext
              .getProcessEngineConfiguration()
              .getEventDispatcher()
              .dispatchEvent(
                  ActivitiEventBuilder.createEntityEvent(
                      ActivitiEventType.ENTITY_CREATED, processDefinition));
        }

        removeObsoleteTimers(processDefinition);
        addTimerDeclarations(processDefinition, timers);

        removeExistingMessageEventSubscriptions(processDefinition, latestProcessDefinition);
        addMessageEventSubscriptions(processDefinition);

        removeExistingSignalEventSubScription(processDefinition, latestProcessDefinition);
        addSignalEventSubscriptions(processDefinition);

        dbSqlSession.insert(processDefinition);
        addAuthorizations(processDefinition);

        if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
          commandContext
              .getProcessEngineConfiguration()
              .getEventDispatcher()
              .dispatchEvent(
                  ActivitiEventBuilder.createEntityEvent(
                      ActivitiEventType.ENTITY_INITIALIZED, processDefinition));
        }

        scheduleTimers(timers);

      } else {
        String deploymentId = deployment.getId();
        processDefinition.setDeploymentId(deploymentId);

        ProcessDefinitionEntity persistedProcessDefinition = null;
        if (processDefinition.getTenantId() == null
            || ProcessEngineConfiguration.NO_TENANT_ID.equals(processDefinition.getTenantId())) {
          persistedProcessDefinition =
              processDefinitionManager.findProcessDefinitionByDeploymentAndKey(
                  deploymentId, processDefinition.getKey());
        } else {
          persistedProcessDefinition =
              processDefinitionManager.findProcessDefinitionByDeploymentAndKeyAndTenantId(
                  deploymentId, processDefinition.getKey(), processDefinition.getTenantId());
        }

        if (persistedProcessDefinition != null) {
          processDefinition.setId(persistedProcessDefinition.getId());
          processDefinition.setVersion(persistedProcessDefinition.getVersion());
          processDefinition.setSuspensionState(persistedProcessDefinition.getSuspensionState());
        }
      }

      // Add to cache
      DeploymentManager deploymentManager = processEngineConfiguration.getDeploymentManager();
      deploymentManager
          .getProcessDefinitionCache()
          .add(processDefinition.getId(), processDefinition);
      addDefinitionInfoToCache(processDefinition, processEngineConfiguration, commandContext);

      // Add to deployment for further usage
      deployment.addDeployedArtifact(processDefinition);

      createLocalizationValues(
          processDefinition.getId(),
          bpmnModelMap.get(processDefinition.getKey()).getProcessById(processDefinition.getKey()));
    }
  }