/*
    * Copyright 2013 The Netty Project
    *
    * The Netty Project 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 io.netty.handler.codec.http;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  
  
  /**
   * Default implementation of a {@link FullHttpResponse}.
   */
  public class DefaultFullHttpResponse extends DefaultHttpResponse implements FullHttpResponse {
  
      private final ByteBuf content;
      private final HttpHeaders trailingHeaders;
      private final boolean validateHeaders;
  
      public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status) {
          this(version, status, Unpooled.buffer(0));
      }
  
      public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status, ByteBuf content) {
          this(version, status, content, true);
      }
  
      public DefaultFullHttpResponse(HttpVersion version, HttpResponseStatus status,
                                     ByteBuf content, boolean validateHeaders) {
          super(version, status, validateHeaders);
          if (content == null) {
              throw new NullPointerException("content");
          }
          this.content = content;
          trailingHeaders = new DefaultHttpHeaders(validateHeaders);
          this.validateHeaders = validateHeaders;
      }
  
      @Override
      public HttpHeaders trailingHeaders() {
          return trailingHeaders;
      }
  
      @Override
      public ByteBuf content() {
          return content;
      }
  
      @Override
      public int refCnt() {
          return content.refCnt();
      }
  
      @Override
      public FullHttpResponse retain() {
          content.retain();
          return this;
      }
  
      @Override
      public FullHttpResponse retain(int increment) {
          content.retain(increment);
          return this;
      }
  
      @Override
      public boolean release() {
          return content.release();
      }
  
      @Override
      public boolean release(int decrement) {
          return content.release(decrement);
      }
  
      @Override
      public FullHttpResponse setProtocolVersion(HttpVersion version) {
          super.setProtocolVersion(version);
          return this;
      }
  
      @Override
      public FullHttpResponse setStatus(HttpResponseStatus status) {
          super.setStatus(status);
          return this;
      }
  
      @Override
     public FullHttpResponse copy() {
         DefaultFullHttpResponse copy = new DefaultFullHttpResponse(
                 getProtocolVersion(), getStatus(), content().copy(), validateHeaders);
         copy.headers().set(headers());
         copy.trailingHeaders().set(trailingHeaders());
         return copy;
     }
 
     @Override
     public FullHttpResponse duplicate() {
         DefaultFullHttpResponse duplicate = new DefaultFullHttpResponse(getProtocolVersion(), getStatus(),
                 content().duplicate(), validateHeaders);
         duplicate.headers().set(headers());
         duplicate.trailingHeaders().set(trailingHeaders());
         return duplicate;
     }
 
     @Override
     public String toString() {
         return HttpMessageUtil.appendFullResponse(new StringBuilder(256), this).toString();
     }
 }