/* 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 org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.impl.form.DefaultFormHandler;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
import org.activiti.engine.impl.task.TaskDefinition;
/**
* Command for retrieving start or task form keys.
*
* @author Falko Menge (camunda)
*/
public class GetFormKeyCmd implements Command<String> {
protected String taskDefinitionKey;
protected String processDefinitionId;
/**
* Retrieves a start form key.
*/
public GetFormKeyCmd(String processDefinitionId) {
setProcessDefinitionId(processDefinitionId);
}
/**
* Retrieves a task form key.
*/
public GetFormKeyCmd(String processDefinitionId, String taskDefinitionKey) {
setProcessDefinitionId(processDefinitionId);
if (taskDefinitionKey == null || taskDefinitionKey.length() < 1) {
throw new ActivitiIllegalArgumentException("The task definition key is mandatory, but '" + taskDefinitionKey + "' has been provided.");
}
this.taskDefinitionKey = taskDefinitionKey;
}
protected void setProcessDefinitionId(String processDefinitionId) {
if (processDefinitionId == null || processDefinitionId.length() < 1) {
throw new ActivitiIllegalArgumentException("The process definition id is mandatory, but '" + processDefinitionId + "' has been provided.");
}
this.processDefinitionId = processDefinitionId;
}
public String execute(CommandContext commandContext) {
ProcessDefinitionEntity processDefinition = commandContext
.getProcessEngineConfiguration()
.getDeploymentManager()
.findDeployedProcessDefinitionById(processDefinitionId);
DefaultFormHandler formHandler;
if (taskDefinitionKey == null) {
// TODO: Maybe add getFormKey() to FormHandler interface to avoid the following cast
formHandler = (DefaultFormHandler) processDefinition.getStartFormHandler();
} else {
TaskDefinition taskDefinition = processDefinition.getTaskDefinitions().get(taskDefinitionKey);
// TODO: Maybe add getFormKey() to FormHandler interface to avoid the following cast
formHandler = (DefaultFormHandler) taskDefinition.getTaskFormHandler();
}
String formKey = null;
if (formHandler.getFormKey() != null) {
formKey = formHandler.getFormKey().getExpressionText();
}
return formKey;
}
}