/* * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH * under one or more contributor license agreements. See the NOTICE file * distributed with this work for additional information regarding copyright * ownership. Camunda licenses this file to you under the Apache License, * Version 2.0; 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.camunda.bpm.engine.impl.cmd; import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull; import java.io.Serializable; import org.camunda.bpm.engine.form.TaskFormData; import org.camunda.bpm.engine.impl.cfg.CommandChecker; import org.camunda.bpm.engine.impl.form.handler.TaskFormHandler; import org.camunda.bpm.engine.impl.interceptor.Command; import org.camunda.bpm.engine.impl.interceptor.CommandContext; import org.camunda.bpm.engine.impl.persistence.entity.TaskEntity; import org.camunda.bpm.engine.impl.persistence.entity.TaskManager; /** * @author Tom Baeyens */ public class GetTaskFormCmd implements Command<TaskFormData>, Serializable { private static final long serialVersionUID = 1L; protected String taskId; public GetTaskFormCmd(String taskId) { this.taskId = taskId; } public TaskFormData execute(CommandContext commandContext) { TaskManager taskManager = commandContext.getTaskManager(); TaskEntity task = taskManager.findTaskById(taskId); ensureNotNull("No task found for taskId '" + taskId + "'", "task", task); for(CommandChecker checker : commandContext.getProcessEngineConfiguration().getCommandCheckers()) { checker.checkReadTaskVariable(task); } if (task.getTaskDefinition() != null) { TaskFormHandler taskFormHandler = task.getTaskDefinition().getTaskFormHandler(); ensureNotNull("No taskFormHandler specified for task '" + taskId + "'", "taskFormHandler", taskFormHandler); return taskFormHandler.createTaskForm(task); } else { // Standalone task, no TaskFormData available return null; } } }