/*
    * Copyright 2009 Red Hat, Inc.
    *
    * Red Hat 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.http2;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * This Attribute is only for Encoder use to insert special command between object if needed
   * (like Multipart Mixed mode)
   *
   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
   * @author Andy Taylor (andy.taylor@jboss.org)
   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
   * @author <a href="http://openr66.free.fr/">Frederic Bregier</a>
   *
   */
  public class InternalAttribute implements InterfaceHttpData {
      protected List<String> value = new ArrayList<String>();
  
      /**
       *
       * @throws NullPointerException
       * @throws IllegalArgumentException
       * @throws IOException
       */
      public InternalAttribute() {
      }
  
      public HttpDataType getHttpDataType() {
          return HttpDataType.InternalAttribute;
      }
  
      public List<String> getValue() {
          return value;
      }
  
      public void addValue(String value) {
          if (value == null) {
              throw new NullPointerException("value");
          }
          this.value.add(value);
      }
  
      public void addValue(String value, int rank) {
          if (value == null) {
              throw new NullPointerException("value");
          }
          this.value.add(rank, value);
      }
  
      public void setValue(String value, int rank) {
          if (value == null) {
              throw new NullPointerException("value");
          }
          this.value.set(rank, value);
      }
  
      @Override
      public int hashCode() {
          return getName().hashCode();
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof Attribute)) {
              return false;
          }
          Attribute attribute = (Attribute) o;
          return getName().equalsIgnoreCase(attribute.getName());
      }
  
      public int compareTo(InterfaceHttpData arg0) {
          if (!(arg0 instanceof InternalAttribute)) {
              throw new ClassCastException("Cannot compare " + getHttpDataType() +
                      " with " + arg0.getHttpDataType());
          }
          return compareTo((InternalAttribute) arg0);
      }
  
      public int compareTo(InternalAttribute o) {
          return getName().compareToIgnoreCase(o.getName());
      }
  
      public int size() {
          int size = 0;
         for (String elt : value) {
             size += elt.length();
         }
         return size;
     }
     @Override
     public String toString() {
         StringBuilder result = new StringBuilder();
         for (String elt : value) {
             result.append(elt);
         }
         return result.toString();
     }
 
     public String getName() {
         return "InternalAttribute";
     }
 }