/* 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.camunda.bpm.engine.impl.cmd;
import java.io.InputStream;
import java.io.Serializable;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.impl.bpmn.diagram.ProcessDiagramLayoutFactory;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.repository.DiagramLayout;
/**
* Provides positions and dimensions of elements in a process diagram as
* provided by {@link GetDeploymentProcessDiagramCmd}.
*
* This command requires a process model and a diagram image to be deployed.
* @author Falko Menge
*/
public class GetDeploymentProcessDiagramLayoutCmd implements Command<DiagramLayout>, Serializable {
private static final long serialVersionUID = 1L;
protected String processDefinitionId;
public GetDeploymentProcessDiagramLayoutCmd(String processDefinitionId) {
if (processDefinitionId == null || processDefinitionId.length() < 1) {
throw new ProcessEngineException("The process definition id is mandatory, but '" + processDefinitionId + "' has been provided.");
}
this.processDefinitionId = processDefinitionId;
}
public DiagramLayout execute(CommandContext commandContext) {
InputStream processModelStream =
new GetDeploymentProcessModelCmd(processDefinitionId)
.execute(commandContext);
InputStream processDiagramStream =
new GetDeploymentProcessDiagramCmd(processDefinitionId)
.execute(commandContext);
return new ProcessDiagramLayoutFactory().getProcessDiagramLayout(processModelStream, processDiagramStream);
}
}