/**
    * Copyright 2005-2014 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.krad.web.bind;
  
  import org.kuali.rice.core.api.CoreApiServiceLocator;
  
  import java.beans.PropertyEditor;
  import java.beans.PropertyEditorSupport;
  import java.security.GeneralSecurityException;
  
  /**
   * Property editor which encrypts values for display and decrypts on binding, uses the
   * {@link org.kuali.rice.core.api.encryption.EncryptionService} to perform the encryption
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class UifEncryptionPropertyEditorWrapper extends PropertyEditorSupport{
  
      private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(UifEncryptionPropertyEditorWrapper.class);
  
      PropertyEditor propertyEditor;
  
      /**
       * @param propertyEditor
       */
      public UifEncryptionPropertyEditorWrapper(PropertyEditor propertyEditor) {
          super();
          this.propertyEditor = propertyEditor;
      }
  
      @Override
      public String getAsText() {
          try {
              if (propertyEditor != null) {
                  if(CoreApiServiceLocator.getEncryptionService().isEnabled()) {
                      return CoreApiServiceLocator.getEncryptionService().encrypt(propertyEditor.getAsText());
                  }
              }
              if(CoreApiServiceLocator.getEncryptionService().isEnabled()) {
                  return CoreApiServiceLocator.getEncryptionService().encrypt(getValue());
              }
              return null;
          } catch (GeneralSecurityException e) {
              LOG.error("Unable to encrypt value");
              throw new RuntimeException("Unable to encrypt value.");
          }
      }
  
      @Override
      public void setAsText(String text) throws IllegalArgumentException {
          try {
              String value = "";
              if(CoreApiServiceLocator.getEncryptionService().isEnabled()) {
                  value = CoreApiServiceLocator.getEncryptionService().decrypt(text);
              }
              if (propertyEditor != null) {
                  propertyEditor.setAsText(value);
              } else {
                  setValue(value);
              }
          } catch (GeneralSecurityException e) {
              LOG.error("Unable to decrypt value: " + text);
              throw new RuntimeException("Unable to decrypt value.");
          }
      }
  
  }