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/* 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.util.Map;

import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.TaskEntity;


/**
 * @author Tom Baeyens
 * @author Joram Barrez
 */
public class SetTaskVariablesCmd extends NeedsActiveTaskCmd {

  private static final long serialVersionUID = 1L;

  protected Map variables;
  protected boolean isLocal;
  
  public SetTaskVariablesCmd(String taskId, Map variables, boolean isLocal) {
    super(taskId);
    this.taskId = taskId;
    this.variables = variables;
    this.isLocal = isLocal;
  }
  
  protected Object execute(CommandContext commandContext, TaskEntity task) {

    if (isLocal) {
    	if (variables != null) {
    		for (String variableName : variables.keySet()) {
    			task.setVariableLocal(variableName, variables.get(variableName), false);
    		}
    	}
      
    } else {
    	if (variables != null) {
    		for (String variableName : variables.keySet()) {
    			task.setVariable(variableName, variables.get(variableName), false);
    		}
    	}
    }
    
    // ACT-1887: Force an update of the task's revision to prevent simultaneous inserts of the same
    // variable. If not, duplicate variables may occur since optimistic locking doesn't work on inserts
    task.forceUpdate();
    return null;
  }
  
  @Override
  protected String getSuspendedTaskException() {
    return "Cannot add variables to a suspended task";
  }
  
}
    

    

    

                
 
            

    

                
 
            



    
    






    
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