/*
    * Licensed to the Apache Software Foundation (ASF) under one   *
    * or more contributor license agreements.  See the NOTICE file *
    * distributed with this work for additional information        *
    * regarding copyright ownership.  The ASF licenses this file   *
    * to you 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.apache.rat;
  
  import java.io.InputStream;
  import java.io.Reader;
  import java.io.Writer;
  
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerConfigurationException;
  import javax.xml.transform.TransformerException;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.stream.StreamResult;
  import javax.xml.transform.stream.StreamSource;
  
  
  class ReportTransformer implements Runnable {
  
      private final Writer out;
      private final Transformer transformer;
      private final Reader in;
      
      public ReportTransformer(final Writer out, final Reader style, 
              final Reader in) throws TransformerConfigurationException {
          this.out = out;
          transformer = TransformerFactory.newInstance().newTransformer(
                  new StreamSource(style));
          this.in = in;
      }
      
      public ReportTransformer(final Writer out, final InputStream style, 
              final Reader in) throws TransformerConfigurationException {
          this.out = out;
          transformer = TransformerFactory.newInstance().newTransformer(
                  new StreamSource(style));
          this.in = in;
      }
      
      public void run() {
          try {
              transform();
          } catch (TransformerException e) {
              throw new ReportFailedRuntimeException(e.getMessage(), e);
          }
      }
  
      public void transform() throws TransformerException {
          transformer.transform(new StreamSource(in), new StreamResult(out));
      }
  
  }