/* 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.InputStream;
import java.io.Serializable;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
/**
* Gives access to a deployed process model, e.g., a BPMN 2.0 XML file, through
* a stream of bytes.
*
* @author Falko Menge
*/
public class GetDeploymentProcessModelCmd implements Command<InputStream>, Serializable {
private static final long serialVersionUID = 1L;
protected String processDefinitionId;
public GetDeploymentProcessModelCmd(String processDefinitionId) {
if (processDefinitionId == null || processDefinitionId.length() < 1) {
throw new ActivitiException("The process definition id is mandatory, but '" + processDefinitionId + "' has been provided.");
}
this.processDefinitionId = processDefinitionId;
}
public InputStream execute(CommandContext commandContext) {
ProcessDefinitionEntity processDefinition = Context
.getProcessEngineConfiguration()
.getDeploymentCache()
.findDeployedProcessDefinitionById(processDefinitionId);
String deploymentId = processDefinition.getDeploymentId();
String resourceName = processDefinition.getResourceName();
InputStream processModelStream =
new GetDeploymentResourceCmd(deploymentId, resourceName)
.execute(commandContext);
return processModelStream;
}
}