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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.transformer;

import org.activiti.engine.ActivitiException;

/**
 * A Transformer is responsible of transforming an object into a different object
 * 

 */
public abstract class AbstractTransformer implements Transformer {

  /**
   * {@inheritDoc}
   */
  public Object transform(Object anObject) {
    try {
      return this.primTransform(anObject);
    } catch (Exception e) {

      throw new ActivitiException("Error while executing transformation from object: " + anObject + " using transformer " + this);
    }
  }

  /**
   * Transforms anObject into a different object
   * 
   * @param anObject
   *          the object to be transformed
   * @return the transformed object
   */
  protected abstract Object primTransform(Object anObject) throws Exception;
}