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1   /*
2    * Copyright 2013 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.handler.codec.spdy;
17  
18  import org.jboss.netty.util.internal.StringUtil;
19  
20  /**
21   * The default {@link SpdyGoAwayFrame} implementation.
22   */
23  public class DefaultSpdyGoAwayFrame implements SpdyGoAwayFrame {
24  
25      private int lastGoodStreamId;
26      private SpdySessionStatus status;
27  
28      /**
29       * Creates a new instance.
30       *
31       * @param lastGoodStreamId the Last-good-stream-ID of this frame
32       */
33      public DefaultSpdyGoAwayFrame(int lastGoodStreamId) {
34          this(lastGoodStreamId, 0);
35      }
36  
37      /**
38       * Creates a new instance.
39       *
40       * @param lastGoodStreamId the Last-good-stream-ID of this frame
41       * @param statusCode       the Status code of this frame
42       */
43      public DefaultSpdyGoAwayFrame(int lastGoodStreamId, int statusCode) {
44          this(lastGoodStreamId, SpdySessionStatus.valueOf(statusCode));
45      }
46  
47      /**
48       * Creates a new instance.
49       *
50       * @param lastGoodStreamId the Last-good-stream-ID of this frame
51       * @param status           the status of this frame
52       */
53      public DefaultSpdyGoAwayFrame(int lastGoodStreamId, SpdySessionStatus status) {
54          setLastGoodStreamId(lastGoodStreamId);
55          setStatus(status);
56      }
57  
58      public int getLastGoodStreamId() {
59          return lastGoodStreamId;
60      }
61  
62      public void setLastGoodStreamId(int lastGoodStreamId) {
63          if (lastGoodStreamId < 0) {
64              throw new IllegalArgumentException("Last-good-stream-ID"
65                      + " cannot be negative: " + lastGoodStreamId);
66          }
67          this.lastGoodStreamId = lastGoodStreamId;
68      }
69  
70      public SpdySessionStatus getStatus() {
71          return status;
72      }
73  
74      public void setStatus(SpdySessionStatus status) {
75          this.status = status;
76      }
77  
78      @Override
79      public String toString() {
80          StringBuilder buf = new StringBuilder();
81          buf.append(getClass().getSimpleName());
82          buf.append(StringUtil.NEWLINE);
83          buf.append("--> Last-good-stream-ID = ");
84          buf.append(getLastGoodStreamId());
85          buf.append(StringUtil.NEWLINE);
86          buf.append("--> Status: ");
87          buf.append(getStatus().toString());
88          return buf.toString();
89      }
90  }