/*
    * Copyright 2009 the original author or authors.
    * 
    * 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.openehealth.ipf.commons.ihe.ws.cxf.payload;
  
  import org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor;
  import org.apache.cxf.message.Message;
  import org.apache.cxf.phase.AbstractPhaseInterceptor;
  import org.apache.cxf.phase.Phase;
  import org.openehealth.ipf.commons.ihe.ws.utils.SoapUtils;
  import static org.openehealth.ipf.commons.ihe.ws.cxf.payload.StringPayloadHolder.PayloadType.SOAP_BODY;
  
  /**
   * CXF interceptor that reads outgoing payload collected by the output 
   * stream proxy installed in {@link OutStreamSubstituteInterceptor} 
   * and stores it in the message as String content type.
   * 
   * @author Dmytro Rud
   */
  public class OutPayloadExtractorInterceptor extends AbstractPhaseInterceptor<Message> {
  
      /**
       * When the CXF message contains <code>Boolean.FALSE</code> in the property
       * with this name, collecting message payload will not be deactivated
       * after the SOAP part has been written.
       */
      public static final String PAYLOAD_COLLECTING_DEACTIVATION_ENABLED =
              OutPayloadExtractorInterceptor.class.getName() + ".collecting.deactivation.enabled";
  
  
      public OutPayloadExtractorInterceptor() {
          super(Phase.PRE_PROTOCOL_ENDING);
          addAfter(SAAJOutInterceptor.SAAJOutEndingInterceptor.class.getName());
      }
  
  
      @Override
      public void handleMessage(Message message) {
          if (isGET(message)) {
              return;
          }
  
          WrappedOutputStream wrapper = OutStreamSubstituteInterceptor.getStreamWrapper(message);
          if (! Boolean.FALSE.equals(message.getContextualProperty(PAYLOAD_COLLECTING_DEACTIVATION_ENABLED))) {
              wrapper.deactivate();
          }
  
          String soapEnvelope = wrapper.getCollectedPayload();
          String payload = SoapUtils.extractSoapBody(soapEnvelope);
          StringPayloadHolder payloadHolder = new StringPayloadHolder();
          payloadHolder.put(SOAP_BODY, payload);
          message.setContent(StringPayloadHolder.class, payloadHolder);
      }
  }