| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.syncope.core.flowable.impl; |
| |
| import org.apache.syncope.core.flowable.api.BpmnProcessManager; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.syncope.common.lib.to.BpmnProcess; |
| import org.apache.syncope.common.lib.types.BpmnProcessFormat; |
| import org.apache.syncope.core.flowable.support.DomainProcessEngine; |
| import org.apache.syncope.core.flowable.support.DropdownAwareJsonConverter; |
| import org.apache.syncope.core.persistence.api.dao.NotFoundException; |
| import org.apache.syncope.core.workflow.api.WorkflowException; |
| import org.flowable.bpmn.converter.BpmnXMLConverter; |
| import org.flowable.bpmn.model.BpmnModel; |
| import org.flowable.common.engine.api.FlowableException; |
| import org.flowable.editor.constants.ModelDataJsonConstants; |
| import org.flowable.editor.language.json.converter.BpmnJsonConverter; |
| import org.flowable.engine.repository.Deployment; |
| import org.flowable.engine.repository.Model; |
| import org.flowable.engine.repository.ProcessDefinition; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.transaction.annotation.Propagation; |
| import org.springframework.transaction.annotation.Transactional; |
| |
| @Transactional(propagation = Propagation.REQUIRES_NEW, rollbackFor = { Throwable.class }) |
| public class FlowableBpmnProcessManager implements BpmnProcessManager { |
| |
| protected static final Logger LOG = LoggerFactory.getLogger(BpmnProcessManager.class); |
| |
| protected static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(); |
| |
| protected static final String MODEL_DATA_JSON_MODEL = "model"; |
| |
| protected final DomainProcessEngine engine; |
| |
| public FlowableBpmnProcessManager(final DomainProcessEngine engine) { |
| this.engine = engine; |
| } |
| |
| protected Model getModel(final ProcessDefinition procDef) { |
| try { |
| Model model = engine.getRepositoryService().createModelQuery(). |
| deploymentId(procDef.getDeploymentId()).singleResult(); |
| if (model == null) { |
| throw new NotFoundException("Could not find Model for deployment " + procDef.getDeploymentId()); |
| } |
| return model; |
| } catch (Exception e) { |
| throw new WorkflowException("While accessing process " + procDef.getKey(), e); |
| } |
| } |
| |
| @Override |
| public List<BpmnProcess> getProcesses() { |
| try { |
| return engine.getRepositoryService().createProcessDefinitionQuery().latestVersion().list().stream(). |
| map(procDef -> { |
| BpmnProcess defTO = new BpmnProcess(); |
| defTO.setKey(procDef.getKey()); |
| defTO.setName(procDef.getName()); |
| |
| try { |
| defTO.setModelId(getModel(procDef).getId()); |
| } catch (NotFoundException e) { |
| LOG.warn("No model found for definition {}, ignoring", procDef.getDeploymentId(), e); |
| } |
| |
| defTO.setUserWorkflow(FlowableRuntimeUtils.WF_PROCESS_ID.equals(procDef.getKey())); |
| |
| return defTO; |
| }).collect(Collectors.toList()); |
| } catch (FlowableException e) { |
| throw new WorkflowException("While listing available process definitions", e); |
| } |
| } |
| |
| protected void exportProcessModel(final String key, final OutputStream os) { |
| Model model = getModel(FlowableRuntimeUtils.getLatestProcDefByKey(engine, key)); |
| |
| try { |
| ObjectNode modelNode = (ObjectNode) OBJECT_MAPPER.readTree(model.getMetaInfo()); |
| modelNode.put(ModelDataJsonConstants.MODEL_ID, model.getId()); |
| modelNode.replace(MODEL_DATA_JSON_MODEL, |
| OBJECT_MAPPER.readTree(engine.getRepositoryService().getModelEditorSource(model.getId()))); |
| |
| os.write(modelNode.toString().getBytes()); |
| } catch (IOException e) { |
| LOG.error("While exporting workflow definition {}", model.getId(), e); |
| } |
| } |
| |
| protected void exportProcessResource(final String deploymentId, final String resourceName, final OutputStream os) { |
| try (InputStream procDefIS = engine.getRepositoryService().getResourceAsStream(deploymentId, resourceName)) { |
| IOUtils.copy(procDefIS, os); |
| } catch (IOException e) { |
| LOG.error("While exporting {}", resourceName, e); |
| } |
| } |
| |
| @Override |
| public void exportProcess(final String key, final BpmnProcessFormat format, final OutputStream os) { |
| switch (format) { |
| case JSON: |
| exportProcessModel(key, os); |
| break; |
| |
| case XML: |
| default: |
| ProcessDefinition procDef = FlowableRuntimeUtils.getLatestProcDefByKey(engine, key); |
| if (procDef == null) { |
| throw new NotFoundException("Process Definition " + key); |
| } |
| exportProcessResource(procDef.getDeploymentId(), procDef.getResourceName(), os); |
| } |
| } |
| |
| @Override |
| public void exportDiagram(final String key, final OutputStream os) { |
| ProcessDefinition procDef = FlowableRuntimeUtils.getLatestProcDefByKey(engine, key); |
| if (procDef == null) { |
| throw new NotFoundException("Workflow process definition for " + key); |
| } |
| exportProcessResource(procDef.getDeploymentId(), procDef.getDiagramResourceName(), os); |
| } |
| |
| @Override |
| public void importProcess(final String key, final BpmnProcessFormat format, final String definition) { |
| ProcessDefinition procDef = FlowableRuntimeUtils.getLatestProcDefByKey(engine, key); |
| String resourceName = procDef == null ? key + ".bpmn20.xml" : procDef.getResourceName(); |
| Deployment deployment; |
| switch (format) { |
| case JSON: |
| JsonNode definitionNode; |
| try { |
| definitionNode = OBJECT_MAPPER.readTree(definition); |
| if (definitionNode.has(MODEL_DATA_JSON_MODEL)) { |
| definitionNode = definitionNode.get(MODEL_DATA_JSON_MODEL); |
| } |
| if (!definitionNode.has(BpmnJsonConverter.EDITOR_CHILD_SHAPES)) { |
| throw new IllegalArgumentException( |
| "Could not find JSON node " + BpmnJsonConverter.EDITOR_CHILD_SHAPES); |
| } |
| |
| BpmnModel bpmnModel = new DropdownAwareJsonConverter().convertToBpmnModel(definitionNode); |
| deployment = FlowableDeployUtils.deployDefinition( |
| engine, |
| resourceName, |
| new BpmnXMLConverter().convertToXML(bpmnModel)); |
| } catch (Exception e) { |
| throw new WorkflowException("While creating or updating process " + key, e); |
| } |
| break; |
| |
| case XML: |
| default: |
| deployment = FlowableDeployUtils.deployDefinition( |
| engine, |
| resourceName, |
| definition.getBytes()); |
| } |
| |
| try { |
| procDef = engine.getRepositoryService().createProcessDefinitionQuery(). |
| deploymentId(deployment.getId()).latestVersion().singleResult(); |
| } catch (FlowableException e) { |
| throw new WorkflowException("While accessing deployment " + deployment.getId(), e); |
| } |
| if (!key.equals(procDef.getKey())) { |
| throw new WorkflowException("Mismatching key: expected " + key + ", found " + procDef.getKey()); |
| } |
| FlowableDeployUtils.deployModel(engine, procDef); |
| } |
| |
| @Override |
| public void deleteProcess(final String key) { |
| if (FlowableRuntimeUtils.WF_PROCESS_ID.equals(key)) { |
| throw new WorkflowException("Cannot delete the main process " + FlowableRuntimeUtils.WF_PROCESS_ID); |
| } |
| |
| try { |
| engine.getRepositoryService().createProcessDefinitionQuery().processDefinitionKey(key).list(). |
| forEach(procDef -> { |
| engine.getRepositoryService().deleteModel(getModel(procDef).getId()); |
| engine.getRepositoryService().deleteDeployment(procDef.getDeploymentId(), true); |
| }); |
| } catch (Exception e) { |
| throw new WorkflowException("While deleting process " + key, e); |
| } |
| } |
| } |