/**
* 查看流程定义
*
* @param request
* @param processDefId 流程定义id
* @return
*/
@RequestMapping(value = "/viewprocessDef.do")
public String viewprocessDef(
HttpServletRequest request,
HttpServletResponse response,
@RequestParam("processDefId") String processDefId)
throws Exception {
// 根据流程定义id查询流程定义
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(processDefId)
.singleResult();
InputStream inputStream =
repositoryService.getResourceAsStream(
processDefinition.getDeploymentId(), processDefinition.getResourceName());
// // 输出资源内容到相应对象
// byte[] b = new byte[1024];
// int len;
// while ((len = inputStream.read(b, 0, 1024)) != -1) {
// response.getOutputStream().write(b, 0, len);
// }
response.getOutputStream().write(IoUtil.readInputStream(inputStream, "processDefInputStream"));
return null;
}
/**
* 读取资源，通过部署ID
*
* @param processDefinitionId 流程定义ID
* @param processInstanceId 流程实例ID
* @param resourceType 资源类型(xml|image)
*/
public InputStream resourceRead(String procDefId, String proInsId, String resType)
throws Exception {
if (StringUtils.isBlank(procDefId)) {
ProcessInstance processInstance =
runtimeService.createProcessInstanceQuery().processInstanceId(proInsId).singleResult();
procDefId = processInstance.getProcessDefinitionId();
}
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(procDefId)
.singleResult();
String resourceName = "";
if (resType.equals("image")) {
resourceName = processDefinition.getDiagramResourceName();
} else if (resType.equals("xml")) {
resourceName = processDefinition.getResourceName();
}
InputStream resourceAsStream =
repositoryService.getResourceAsStream(processDefinition.getDeploymentId(), resourceName);
return resourceAsStream;
}
/**
* 读取工作流定义的图片或xml
*
* @throws Exception
*/
@RequestMapping(params = "resourceRead")
public void resourceRead(
@RequestParam("processDefinitionId") String processDefinitionId,
@RequestParam("resourceType") String resourceType,
HttpServletResponse response)
throws Exception {
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(processDefinitionId)
.singleResult();
String resourceName = "";
if (resourceType.equals("image")) {
resourceName = processDefinition.getDiagramResourceName();
} else if (resourceType.equals("xml")) {
resourceName = processDefinition.getResourceName();
}
InputStream resourceAsStream =
repositoryService.getResourceAsStream(processDefinition.getDeploymentId(), resourceName);
byte[] b = new byte[1024];
int len = -1;
while ((len = resourceAsStream.read(b, 0, 1024)) != -1) {
response.getOutputStream().write(b, 0, len);
}
}
/**
* 将部署的流程转换为模型
*
* @param procDefId
* @throws UnsupportedEncodingException
* @throws XMLStreamException
*/
@Transactional(readOnly = false)
public org.activiti.engine.repository.Model convertToModel(String procDefId)
throws UnsupportedEncodingException, XMLStreamException {
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(procDefId)
.singleResult();
InputStream bpmnStream =
repositoryService.getResourceAsStream(
processDefinition.getDeploymentId(), processDefinition.getResourceName());
XMLInputFactory xif = XMLInputFactory.newInstance();
InputStreamReader in = new InputStreamReader(bpmnStream, "UTF-8");
XMLStreamReader xtr = xif.createXMLStreamReader(in);
BpmnModel bpmnModel = new BpmnXMLConverter().convertToBpmnModel(xtr);
BpmnJsonConverter converter = new BpmnJsonConverter();
ObjectNode modelNode = converter.convertToJson(bpmnModel);
org.activiti.engine.repository.Model modelData = repositoryService.newModel();
modelData.setKey(processDefinition.getKey());
modelData.setName(processDefinition.getResourceName());
modelData.setCategory(processDefinition.getCategory()); // .getDeploymentId());
modelData.setDeploymentId(processDefinition.getDeploymentId());
modelData.setVersion(
Integer.parseInt(
String.valueOf(
repositoryService.createModelQuery().modelKey(modelData.getKey()).count() + 1)));
ObjectNode modelObjectNode = new ObjectMapper().createObjectNode();
modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, processDefinition.getName());
modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, modelData.getVersion());
modelObjectNode.put(
ModelDataJsonConstants.MODEL_DESCRIPTION, processDefinition.getDescription());
modelData.setMetaInfo(modelObjectNode.toString());
repositoryService.saveModel(modelData);
repositoryService.addModelEditorSource(
modelData.getId(), modelNode.toString().getBytes("utf-8"));
return modelData;
}
public void viewXml() throws Exception {
RepositoryService repositoryService = processEngine.getRepositoryService();
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(processDefinitionId)
.singleResult();
String resourceName = processDefinition.getResourceName();
InputStream resourceAsStream =
repositoryService.getResourceAsStream(processDefinition.getDeploymentId(), resourceName);
ServletActionContext.getResponse().setContentType("text/xml;charset=UTF-8");
IoUtils.copyStream(resourceAsStream, ServletActionContext.getResponse().getOutputStream());
}
/**
* easyui AJAX请求数据
*
* @param request
* @param response
* @param dataGrid
*/
@RequestMapping(params = "datagrid")
public void datagrid(
HttpServletRequest request, HttpServletResponse response, DataGrid dataGrid) {
ProcessDefinitionQuery query = repositoryService.createProcessDefinitionQuery();
List<ProcessDefinition> list = query.list();
StringBuffer rows = new StringBuffer();
int i = 0;
for (ProcessDefinition pi : list) {
Deployment deployment =
repositoryService
.createDeploymentQuery()
.deploymentId(pi.getDeploymentId())
.singleResult();
i++;
rows.append(
"{'id':"
+ i
+ ",'processDefinitionId':'"
+ pi.getId()
+ "','deploymentDate':'"
+ new SimpleDateFormat("yyyy-MM-dd").format(deployment.getDeploymentTime())
+ "','resourceName':'"
+ pi.getResourceName()
+ "','deploymentId':'"
+ pi.getDeploymentId()
+ "','key':'"
+ pi.getKey()
+ "','name':'"
+ pi.getName()
+ "','version':'"
+ pi.getVersion()
+ "','isSuspended':'"
+ pi.isSuspended()
+ "'},");
}
String rowStr = StringUtils.substringBeforeLast(rows.toString(), ",");
JSONObject jObject =
JSONObject.fromObject("{'total':" + query.count() + ",'rows':[" + rowStr + "]}");
responseDatagrid(response, jObject);
}
@Test
public void testClasspathDeployment() throws IOException {
// 定义classpath
String bpmnClasspath = "diagrams/userAndGroupInUserTask.bpmn";
// 添加资源
repositoryService.createDeployment().addClasspathResource(bpmnClasspath).deploy();
// 获取流程定义对象
ProcessDefinition pd = repositoryService.createProcessDefinitionQuery().singleResult();
String resourceName = pd.getResourceName();
System.out.println("资源名称:" + resourceName);
// 读取资源字节流
InputStream resourceAsStream =
repositoryService.getResourceAsStream(pd.getDeploymentId(), resourceName);
// 输出流的内容
StringBuffer out = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = resourceAsStream.read(b)) != -1; ) {
out.append(new String(b, 0, n));
}
System.out.println(out);
}
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);
}
}
}
}
