01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.transport;
22
23 import org.apache.qpid.transport.network.Frame;
24
25 import java.util.Arrays;
26 import java.util.List;
27 import java.util.Map;
28 import java.util.LinkedHashMap;
29 import java.nio.ByteBuffer;
30
31
32 /**
33 * Header
34 *
35 * @author Rafael H. Schloming
36 */
37
38 public class Header {
39
40 private final Struct[] structs;
41
42 public Header(List<Struct> structs)
43 {
44 this(structs.toArray(new Struct[structs.size()]));
45 }
46
47 public Header(Struct ... structs)
48 {
49 this.structs = structs;
50 }
51
52 public Struct[] getStructs()
53 {
54 return structs;
55 }
56
57
58 public <T> T get(Class<T> klass)
59 {
60 for (Struct st : structs)
61 {
62 if (klass.isInstance(st))
63 {
64 return (T) st;
65 }
66 }
67
68 return null;
69 }
70
71 public String toString()
72 {
73 StringBuffer str = new StringBuffer();
74 str.append(" Header(");
75 boolean first = true;
76 for (Struct s : structs)
77 {
78 if (first)
79 {
80 first = false;
81 }
82 else
83 {
84 str.append(", ");
85 }
86 str.append(s);
87 }
88 str.append(")");
89 return str.toString();
90 }
91
92 }
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