/*
    * Copyright 2016 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.http2;
  
  import io.netty.util.internal.StringUtil;
  import io.netty.util.internal.UnstableApi;
  
  /**
   * The default {@link Http2PingFrame} implementation.
   */
  @UnstableApi
  public class DefaultHttp2PingFrame implements Http2PingFrame {
  
      private final long content;
      private final boolean ack;
  
      public DefaultHttp2PingFrame(long content) {
          this(content, false);
      }
  
      /**
       * A user cannot send a ping ack, as this is done automatically when a ping is received.
       */
      DefaultHttp2PingFrame(long content, boolean ack) {
          this.content = content;
          this.ack = ack;
      }
  
      @Override
      public boolean ack() {
          return ack;
      }
  
      @Override
      public String name() {
          return "PING";
      }
  
      @Override
      public long content() {
          return content;
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof Http2PingFrame)) {
              return false;
          }
          Http2PingFrame other = (Http2PingFrame) o;
          return ack == other.ack() &&  content == other.content();
      }
  
      @Override
      public int hashCode() {
          int hash = super.hashCode();
          hash = hash * 31 + (ack ? 1 : 0);
          return hash;
      }
  
      @Override
      public String toString() {
          return StringUtil.simpleClassName(this) + "(content=" + content + ", ack=" + ack + ')';
      }
  }