/* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.activiti.explorer.ui.process;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.activiti.bpmn.converter.BpmnXMLConverter;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.GraphicInfo;
import org.activiti.engine.ManagementService;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.impl.jobexecutor.TimerActivateProcessDefinitionHandler;
import org.activiti.engine.impl.jobexecutor.TimerSuspendProcessDefinitionHandler;
import org.activiti.engine.impl.persistence.entity.JobEntity;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.Job;
import org.activiti.explorer.Constants;
import org.activiti.explorer.ExplorerApp;
import org.activiti.explorer.I18nManager;
import org.activiti.explorer.Messages;
import org.activiti.explorer.ui.mainlayout.ExplorerLayout;
import org.activiti.explorer.util.XmlUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.vaadin.terminal.ExternalResource;
import com.vaadin.terminal.StreamResource;
import com.vaadin.ui.ComponentContainer;
import com.vaadin.ui.Embedded;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.Panel;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.themes.Reindeer;
/**
* @author Frederik Heremans
* @author Joram Barrez
*/
public class ProcessDefinitionInfoComponent extends VerticalLayout {
private static final long serialVersionUID = 1L;
protected static final Logger LOGGER = LoggerFactory.getLogger(ProcessDefinitionInfoComponent.class);
// Services
protected transient RepositoryService repositoryService;
protected transient ManagementService managementService;
protected I18nManager i18nManager;
// Members
protected ProcessDefinition processDefinition;
protected Deployment deployment;
// UI
protected HorizontalLayout timeDetails;
protected VerticalLayout processImageContainer;
public ProcessDefinitionInfoComponent(ProcessDefinition processDefinition, Deployment deployment) {
super();
this.repositoryService = ProcessEngines.getDefaultProcessEngine().getRepositoryService();
this.managementService = ProcessEngines.getDefaultProcessEngine().getManagementService();
this.i18nManager = ExplorerApp.get().getI18nManager();
this.processDefinition = processDefinition;
this.deployment = deployment;
addStyleName(ExplorerLayout.STYLE_DETAIL_BLOCK);
initSuspensionStateInformation();
initImage();
}
protected void initSuspensionStateInformation() {
List<Job> jobs = managementService.createJobQuery()
.processDefinitionId(processDefinition.getId()).orderByJobDuedate().asc().list();
List<JobEntity> suspensionStateJobs = new ArrayList<JobEntity>();
// TODO: this is a hack (ie the cast to JobEntity)... we must clean this in the engine!
for (Job job : jobs) {
JobEntity jobEntity = (JobEntity) job;
if (jobEntity.getJobHandlerType().equals(TimerSuspendProcessDefinitionHandler.TYPE)
|| jobEntity.getJobHandlerType().equals(TimerActivateProcessDefinitionHandler.TYPE)) {
suspensionStateJobs.add(jobEntity);
}
}
if (!suspensionStateJobs.isEmpty()) {
// Header
Label suspensionStateTitle = new Label(i18nManager.getMessage(Messages.PROCESS_HEADER_SUSPENSION_STATE));
suspensionStateTitle.addStyleName(ExplorerLayout.STYLE_H3);
addComponent(suspensionStateTitle);
addEmptySpace(this);
// Actual suspend/activation jobs
for (JobEntity jobEntity : suspensionStateJobs) {
if (jobEntity.getJobHandlerType().equals(TimerSuspendProcessDefinitionHandler.TYPE)) {
Label suspendLabel = new Label(i18nManager.getMessage(Messages.PROCESS_SCHEDULED_SUSPEND,
Constants.DEFAULT_TIME_FORMATTER.format(jobEntity.getDuedate())), Label.CONTENT_XHTML);
addComponent(suspendLabel);
} else if (jobEntity.getJobHandlerType().equals(TimerActivateProcessDefinitionHandler.TYPE)) {
Label suspendLabel = new Label(i18nManager.getMessage(Messages.PROCESS_SCHEDULED_ACTIVATE,
Constants.DEFAULT_TIME_FORMATTER.format(jobEntity.getDuedate())), Label.CONTENT_XHTML);
addComponent(suspendLabel);
}
}
}
addEmptySpace(this);
}
protected void initImage() {
processImageContainer = new VerticalLayout();
Label processTitle = new Label(i18nManager.getMessage(Messages.PROCESS_HEADER_DIAGRAM));
processTitle.addStyleName(ExplorerLayout.STYLE_H3);
processImageContainer.addComponent(processTitle);
boolean didDrawImage = false;
if (ExplorerApp.get().isUseJavascriptDiagram()) {
try {
final InputStream definitionStream = repositoryService.getResourceAsStream(
processDefinition.getDeploymentId(), processDefinition.getResourceName());
XMLInputFactory xif = XmlUtil.createSafeXmlInputFactory();
XMLStreamReader xtr = xif.createXMLStreamReader(definitionStream);
BpmnModel bpmnModel = new BpmnXMLConverter().convertToBpmnModel(xtr);
if (!bpmnModel.getFlowLocationMap().isEmpty()) {
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());
Embedded browserPanel = new Embedded("", new ExternalResource(url));
browserPanel.setType(Embedded.TYPE_BROWSER);
browserPanel.setWidth(maxX + 350 + "px");
browserPanel.setHeight(maxY + 220 + "px");
HorizontalLayout panelLayout = new HorizontalLayout();
panelLayout.setSizeUndefined();
imagePanel.setContent(panelLayout);
imagePanel.addComponent(browserPanel);
processImageContainer.addComponent(imagePanel);
didDrawImage = true;
}
} catch (Exception e) {
LOGGER.error("Error loading process diagram component", e);
}
}
if(didDrawImage == false) {
StreamResource diagram = null;
// Try generating process-image stream
if(processDefinition.getDiagramResourceName() != null) {
diagram = new ProcessDefinitionImageStreamResourceBuilder()
.buildStreamResource(processDefinition, repositoryService);
}
if (diagram != null) {
Embedded embedded = new Embedded(null, diagram);
embedded.setType(Embedded.TYPE_IMAGE);
embedded.setSizeUndefined();
Panel imagePanel = new Panel(); // using panel for scrollbars
imagePanel.addStyleName(Reindeer.PANEL_LIGHT);
imagePanel.setWidth(100, UNITS_PERCENTAGE);
imagePanel.setHeight(100, UNITS_PERCENTAGE);
HorizontalLayout panelLayout = new HorizontalLayout();
panelLayout.setSizeUndefined();
imagePanel.setContent(panelLayout);
imagePanel.addComponent(embedded);
processImageContainer.addComponent(imagePanel);
didDrawImage = true;
}
}
if (didDrawImage == false) {
Label noImageAvailable = new Label(i18nManager.getMessage(Messages.PROCESS_NO_DIAGRAM));
processImageContainer.addComponent(noImageAvailable);
}
addComponent(processImageContainer);
}
protected void addEmptySpace(ComponentContainer container) {
Label emptySpace = new Label(" ", Label.CONTENT_XHTML);
emptySpace.setSizeUndefined();
container.addComponent(emptySpace);
}
}