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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * 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   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  
28  package org.apache.hc.core5.http2.hpack;
29  
30  import org.apache.hc.core5.http.Header;
31  
32  /**
33   * Internal HPack header representation that also contains binary length of
34   * header name and header value.
35   */
36  final class HPackHeader implements Header {
37  
38      static private final int ENTRY_SIZE_OVERHEAD = 32;
39  
40      private final String name;
41      private final int nameLen;
42      private final String value;
43      private final int valueLen;
44      private final boolean sensitive;
45  
46      HPackHeader(final String name, final int nameLen, final String value, final int valueLen, final boolean sensitive) {
47          this.name = name;
48          this.nameLen = nameLen;
49          this.value = value;
50          this.valueLen = valueLen;
51          this.sensitive = sensitive;
52      }
53  
54      HPackHeader(final String name, final String value, final boolean sensitive) {
55          this(name, name.length(), value, value.length(), sensitive);
56      }
57  
58      HPackHeader(final String name, final String value) {
59          this(name, value, false);
60      }
61  
62      HPackHeader(final Header header) {
63          this(header.getName(), header.getValue(), header.isSensitive());
64      }
65  
66      @Override
67      public String getName() {
68          return name;
69      }
70  
71      public int getNameLen() {
72          return nameLen;
73      }
74  
75      @Override
76      public String getValue() {
77          return value;
78      }
79  
80      public int getValueLen() {
81          return valueLen;
82      }
83  
84      @Override
85      public boolean isSensitive() {
86          return sensitive;
87      }
88  
89      public int getTotalSize() {
90          return nameLen + valueLen + ENTRY_SIZE_OVERHEAD;
91      }
92  
93      @Override
94      public String toString() {
95          final StringBuilder buf = new StringBuilder();
96          buf.append(this.name).append(": ");
97          if (this.value != null) {
98              buf.append(this.value);
99          }
100         return buf.toString();
101     }
102 
103 }