/* 
    * 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.esigate.servlet.impl;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.http.HttpHeaders;
  import org.apache.http.entity.AbstractHttpEntity;
  import org.esigate.http.HttpResponseUtils;
  
  public class HttpServletRequestEntity extends AbstractHttpEntity {
      private final HttpServletRequest request;
      private final long length;
  
      HttpServletRequestEntity(HttpServletRequest request) {
          this.request = request;
          String contentLengthHeader = request.getHeader(HttpHeaders.CONTENT_LENGTH);
          if (contentLengthHeader != null) {
              length = Long.parseLong(contentLengthHeader);
          } else {
              length = -1;
          }
          String contentTypeHeader = request.getHeader(HttpHeaders.CONTENT_TYPE);
          if (contentTypeHeader != null) {
              this.setContentType(contentTypeHeader);
          }
          String contentEncodingHeader = request.getHeader(HttpHeaders.CONTENT_ENCODING);
          if (contentEncodingHeader != null) {
              this.setContentEncoding(contentEncodingHeader);
          }
  
      }
  
      @Override
      public boolean isRepeatable() {
          return false;
      }
  
      @Override
      public long getContentLength() {
          return length;
      }
  
      @Override
      public InputStream getContent() throws IOException, IllegalStateException {
          return request.getInputStream();
      }
  
      @Override
      public void writeTo(OutputStream outstream) throws IOException {
          HttpResponseUtils.writeTo(this, outstream);
      }
  
      @Override
      public boolean isStreaming() {
          return true;
      }
  
  }