/*
    * Copyright 2008 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.platform.camel.core.model;
  
  import static org.apache.camel.builder.Builder.bodyAs;
  
  import javax.xml.bind.annotation.*;
  import javax.xml.transform.stream.StreamSource;
  
  import org.apache.camel.spi.Metadata;
  import org.apache.camel.spi.RouteContext;
  import org.openehealth.ipf.commons.core.modules.api.Transmogrifier;
  import org.openehealth.ipf.commons.xml.SchematronTransmogrifier;
  import org.openehealth.ipf.commons.xml.XqjTransmogrifier;
  import org.openehealth.ipf.commons.xml.XsltTransmogrifier;
  import org.openehealth.ipf.platform.camel.core.adapter.ProcessorAdapter;
  import org.openehealth.ipf.platform.camel.core.adapter.TransmogrifierAdapter;
  
  /**
   * @author Martin Krasser
   */
  @Metadata(label = "ipf,eip,transformation")
  @XmlRootElement(name = "transmogrify")
  @XmlAccessorType(XmlAccessType.FIELD)
  public class TransmogrifierAdapterDefinition extends ProcessorAdapterDefinition {
  
      @XmlTransient
      private Transmogrifier transmogrifier;
      @XmlAttribute
      private String transmogrifierBean;
  
      public TransmogrifierAdapterDefinition() {
      }
  
      public TransmogrifierAdapterDefinition(Transmogrifier transmogrifier) {
          this.transmogrifier = transmogrifier;
          params().headers();
      }
  
      public TransmogrifierAdapterDefinition(String transmogrifierBean) {
          this.transmogrifierBean = transmogrifierBean;
          params().headers();
      }
  
      @Override
      public String toString() {
          return "TransmogrifierAdapter[" + getOutputs() + "]";
      }
  
      @Override
      public String getShortName() {
          return "transmogrifierAdapter";
      }
      
      /**
       * Specifies that the transformation is done via XSLT
       */
      public TransmogrifierAdapterDefinition xslt() {
          transmogrifier = new XsltTransmogrifier<>(String.class);
          return (TransmogrifierAdapterDefinition)input(bodyAs(StreamSource.class));
      }
      
      /**
       * Specifies that the transformation is done via XSLT
       * 
       * @param clazz
       *            the resulting type of the message body after the
       *            transformation
       */
      public <T> TransmogrifierAdapterDefinition xslt(Class<T> clazz) {
          transmogrifier = new XsltTransmogrifier<>(clazz);
          return (TransmogrifierAdapterDefinition)input(bodyAs(StreamSource.class));
      }
      
      /**
       * Specifies that the transformation is done via XQuery
       * 
       */
      public TransmogrifierAdapterDefinition xquery() {
          transmogrifier = new XqjTransmogrifier<>(String.class);
          return (TransmogrifierAdapterDefinition) input(bodyAs(StreamSource.class));
      }
  
      /**
       * Specifies that the transformation is done via XQuery
       * 
      * @param clazz
      *            the resulting type of the message body after the
      *            transformation
      */
     public <T> TransmogrifierAdapterDefinition xquery(Class<T> clazz) {
         transmogrifier = new XqjTransmogrifier<>(clazz);
         return (TransmogrifierAdapterDefinition) input(bodyAs(StreamSource.class));
     }
 
     /**
      * Specifies that a schematron validation report is generated
      */
     public TransmogrifierAdapterDefinition schematron() {
         transmogrifier = new SchematronTransmogrifier<>(String.class);
         return (TransmogrifierAdapterDefinition)input(bodyAs(StreamSource.class));
     }
 
     /**
      * Specifies that a schematron validation report is generated
      * @param clazz
      *          the resulting type of the message bodyf after the transformation
      */
     public <T> TransmogrifierAdapterDefinition schematron(Class<T> clazz) {
         transmogrifier = new SchematronTransmogrifier<>(clazz);
         return (TransmogrifierAdapterDefinition)input(bodyAs(StreamSource.class));
     }
 
     
     @Override
     protected ProcessorAdapter doCreateProcessor(RouteContext routeContext) {
         if (transmogrifierBean != null) {
             transmogrifier = routeContext.lookup(transmogrifierBean, Transmogrifier.class);
         }
         return new TransmogrifierAdapter(transmogrifier);
     }
 
 }