/*
    * Copyright 2005-2007 The Kuali Foundation
    * 
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
   * 
   * 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.kuali.rice.kew.ojb;
  
  import java.security.GeneralSecurityException;
  
  import org.apache.ojb.broker.accesslayer.conversions.FieldConversion;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  
  
  public class OjbEncryptDecryptFieldConversion implements FieldConversion {
  
  	private static final long serialVersionUID = 5065288024404819443L;
  
  	/**
       * @see FieldConversion#javaToSql(Object)
       */
      public Object javaToSql(Object source) {
      	String converted = "";
      	if ( source != null ) {
      		converted = source.toString();
      	}
  
          try {
              if (KEWServiceLocator.getEncryptionService().isEnabled()) {
                  converted = KEWServiceLocator.getEncryptionService()
                                                  .encrypt(converted);
              }
          } catch (GeneralSecurityException e) {
              throw new RuntimeException("Unable to encrypt value to db: ", e);
          }
  
          return converted;
      }
  
      /**
       * @see FieldConversion#sqlToJava(Object)
       */
      public Object sqlToJava(Object source) {
      	String converted = "";
  
          if (source != null) {
              converted = source.toString();
          }
  
          try {
              if (KEWServiceLocator.getEncryptionService().isEnabled()) {
                  converted = KEWServiceLocator.getEncryptionService()
                                                  .decrypt(converted);
              }
          } catch (GeneralSecurityException e) {
              throw new RuntimeException("Unable to decrypt value from db: ", e);
          }
  
          return converted;
      }
  
  }