/* 
    * Copyright (c) 2012, Fraunhofer-Gesellschaft
    * All rights reserved.
    * 
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions are
    * met:
    * 
    * (1) Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the disclaimer at the end.
   *     Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in
   *     the documentation and/or other materials provided with the
   *     distribution.
   * 
   * (2) Neither the name of Fraunhofer nor the names of its
   *     contributors may be used to endorse or promote products derived
   *     from this software without specific prior written permission.
   * 
   * DISCLAIMER
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *  
   */
  package org.ogf.graap.wsag.server.rest;
  
  import javax.ws.rs.Path;
  import javax.ws.rs.PathParam;
  
  import org.apache.xmlbeans.QNameSet;
  import org.apache.xmlbeans.XmlObject;
  import org.ogf.graap.wsag.api.Negotiation;
  import org.ogf.graap.wsag.api.exceptions.NegotiationException;
  import org.ogf.graap.wsag.api.exceptions.ResourceUnavailableException;
  import org.ogf.graap.wsag.api.exceptions.ResourceUnknownException;
  import org.ogf.graap.wsag.api.rest.RestNegotiation;
  import org.ogf.schemas.graap.wsAgreement.AgreementTemplateType;
  import org.ogf.schemas.graap.wsAgreement.negotiation.AdvertiseInputDocument;
  import org.ogf.schemas.graap.wsAgreement.negotiation.NegotiateInputDocument;
  import org.ogf.schemas.graap.wsAgreement.negotiation.NegotiateOutputDocument;
  import org.ogf.schemas.graap.wsAgreement.negotiation.NegotiationContextType;
  import org.ogf.schemas.graap.wsAgreement.negotiation.NegotiationOfferType;
  import org.ogf.schemas.graap.wsAgreement.negotiation.NegotiationPropertiesDocument;
  import org.ogf.schemas.graap.wsAgreement.negotiation.TerminateInputDocument;
  
  /**
   * @author owaeld
   * 
   */
  @Path( "/factories/{factoryId}/Negotiations/{negotiationId}" )
  public class RestNegotiationFacade
      implements RestNegotiation
  {
      private final String factoryId;
  
      private final String negotiationId;
  
      public RestNegotiationFacade( @PathParam( "factoryId" ) String factoryId,
                                    @PathParam( "negotiationId" ) String negotiationId )
      {
          this.factoryId = factoryId;
          this.negotiationId = negotiationId;
      }
  
      private Negotiation getNegotiation()
      {
          /*
           * each negotiation has a global unique id, no need to use the factory id here
           */
          return RestNegotiationRegistry.get( negotiationId );
      }
  
      /*
       * (non-Javadoc)
       * 
       * @see org.ogf.graap.wsag.api.rest.RestNegotiation#getNegotiationContext()
       */
      @Override
      public NegotiationPropertiesDocument getNegotiationContext()
          throws ResourceUnknownException, ResourceUnavailableException
      {
          NegotiationContextType context = getNegotiation().getNegotiationContext();
  
          NegotiationPropertiesDocument properties = NegotiationPropertiesDocument.Factory.newInstance();
          properties.addNewNegotiationProperties().addNewNegotiationContext().set( context );
  
          return properties;
      }
  
     /*
      * (non-Javadoc)
      * 
      * @see org.ogf.graap.wsag.api.rest.RestNegotiation#getNegotiableTemplates()
      */
     @Override
     public NegotiationPropertiesDocument getNegotiableTemplates()
         throws ResourceUnknownException, ResourceUnavailableException
     {
         AgreementTemplateType[] templates = getNegotiation().getNegotiableTemplates();
 
         NegotiationPropertiesDocument properties = NegotiationPropertiesDocument.Factory.newInstance();
         properties.addNewNegotiationProperties().setNegotiableTemplateArray( templates );
 
         return properties;
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see org.ogf.graap.wsag.api.rest.RestNegotiation#getNegotiationOffers()
      */
     @Override
     public NegotiationPropertiesDocument getNegotiationOffers()
         throws ResourceUnknownException, ResourceUnavailableException
     {
         NegotiationOfferType[] offers = getNegotiation().getNegotiationOffers();
 
         NegotiationPropertiesDocument properties = NegotiationPropertiesDocument.Factory.newInstance();
         properties.addNewNegotiationProperties().setNegotiationOfferArray( offers );
 
         return properties;
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see
      * org.ogf.graap.wsag.api.rest.RestNegotiation#negotiate(org.ogf.schemas.graap.wsAgreement.negotiation
      * .NegotiateInputDocument)
      */
     @Override
     public NegotiateOutputDocument negotiate( NegotiateInputDocument input )
         throws NegotiationException, ResourceUnknownException, ResourceUnavailableException
     {
         NegotiationOfferType[] offers = input.getNegotiateInput().getNegotiationOfferArray();
         QNameSet others =
             QNameSet.forWildcardNamespaceString( "##other",
                 NegotiateInputDocument.type.getDocumentElementName().getNamespaceURI() );
         XmlObject[] noncritical = input.getNegotiateInput().selectChildren( others );
 
         NegotiationOfferType[] counterOffers = getNegotiation().negotiate( offers, noncritical );
 
         NegotiateOutputDocument output = NegotiateOutputDocument.Factory.newInstance();
         output.addNewNegotiateOutput().setNegotiationCounterOfferArray( counterOffers );
 
         return output;
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see
      * org.ogf.graap.wsag.api.rest.RestNegotiation#advertise(org.ogf.schemas.graap.wsAgreement.negotiation
      * .AdvertiseInputDocument)
      */
     @Override
     public void advertise( AdvertiseInputDocument input )
         throws NegotiationException, ResourceUnknownException, ResourceUnavailableException
     {
         NegotiationOfferType[] offers = input.getAdvertiseInput().getNegotiationOfferArray();
         QNameSet others =
             QNameSet.forWildcardNamespaceString( "##other",
                 NegotiateInputDocument.type.getDocumentElementName().getNamespaceURI() );
         XmlObject[] noncritical = input.getAdvertiseInput().selectChildren( others );
 
         getNegotiation().advertise( offers, noncritical );
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see
      * org.ogf.graap.wsag.api.rest.RestNegotiation#terminate(org.ogf.schemas.graap.wsAgreement.negotiation
      * .TerminateInputDocument)
      */
     @Override
     public void terminate( TerminateInputDocument reason )
         throws ResourceUnknownException, ResourceUnavailableException
     {
         getNegotiation().terminate();
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see org.ogf.graap.wsag.api.rest.RestNegotiation#destroy()
      */
     @Override
     public void destroy() throws ResourceUnknownException, ResourceUnavailableException
     {
         RestNegotiationRegistry.remove( negotiationId );
     }
 
 }