/* 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.engine.impl.cmd;
import java.io.Serializable;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.form.TaskFormData;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.form.TaskFormHandler;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.TaskEntity;
/**
* @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) {
TaskEntity task = Context
.getCommandContext()
.getTaskManager()
.findTaskById(taskId);
if (task == null) {
throw new ActivitiException("No task found for taskId '" + taskId +"'");
}
if(task.getTaskDefinition() != null) {
TaskFormHandler taskFormHandler = task.getTaskDefinition().getTaskFormHandler();
if (taskFormHandler == null) {
throw new ActivitiException("No taskFormHandler specified for task '" + taskId +"'");
}
return taskFormHandler.createTaskForm(task);
} else {
// Standalone task, no TaskFormData available
return null;
}
}
}