/*
    * Copyright 2012 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 org.jboss.netty.handler.codec.spdy;
  
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.jboss.netty.util.internal.StringUtil;
  
  /**
   * The default {@link SpdyHeaderBlock} implementation.
   */
  public class DefaultSpdyHeaderBlock implements SpdyHeaderBlock {
  
      private boolean invalid;
      private final SpdyHeaders headers = new SpdyHeaders();
  
      /**
       * Creates a new instance.
       */
      protected DefaultSpdyHeaderBlock() {
      }
  
      public boolean isInvalid() {
          return invalid;
      }
  
      public void setInvalid() {
          invalid = true;
      }
  
      public void addHeader(final String name, final Object value) {
          headers.addHeader(name, value);
      }
  
      public void setHeader(final String name, final Object value) {
          headers.setHeader(name, value);
      }
  
      public void setHeader(final String name, final Iterable<?> values) {
          headers.setHeader(name, values);
      }
  
      public void removeHeader(final String name) {
          headers.removeHeader(name);
      }
  
      public void clearHeaders() {
          headers.clearHeaders();
      }
  
      public String getHeader(final String name) {
          return headers.getHeader(name);
      }
  
      public List<String> getHeaders(final String name) {
          return headers.getHeaders(name);
      }
  
      public List<Map.Entry<String, String>> getHeaders() {
          return headers.getHeaders();
      }
  
      public boolean containsHeader(final String name) {
          return headers.containsHeader(name);
      }
  
      public Set<String> getHeaderNames() {
          return headers.getHeaderNames();
      }
  
      protected void appendHeaders(StringBuilder buf) {
          for (Map.Entry<String, String> e: getHeaders()) {
              buf.append("    ");
              buf.append(e.getKey());
              buf.append(": ");
              buf.append(e.getValue());
              buf.append(StringUtil.NEWLINE);
          }
      }
  }