1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19
20 package org.eclipse.jetty.util;
21
22 import java.util.HashMap;
23 import java.util.HashSet;
24 import java.util.Map;
25
26 /* ------------------------------------------------------------ */
27 /**
28 */
29 @SuppressWarnings("serial")
30 public class HostMap<TYPE> extends HashMap<String, TYPE>
31 {
32
33 /* --------------------------------------------------------------- */
34 /** Construct empty HostMap.
35 */
36 public HostMap()
37 {
38 super(11);
39 }
40
41 /* --------------------------------------------------------------- */
42 /** Construct empty HostMap.
43 *
44 * @param capacity initial capacity
45 */
46 public HostMap(int capacity)
47 {
48 super (capacity);
49 }
50
51 /* ------------------------------------------------------------ */
52 /**
53 * @see java.util.HashMap#put(java.lang.Object, java.lang.Object)
54 */
55 @Override
56 public TYPE put(String host, TYPE object)
57 throws IllegalArgumentException
58 {
59 return super.put(host, object);
60 }
61
62 /* ------------------------------------------------------------ */
63 /**
64 * @see java.util.HashMap#get(java.lang.Object)
65 */
66 @Override
67 public TYPE get(Object key)
68 {
69 return super.get(key);
70 }
71
72 /* ------------------------------------------------------------ */
73 /**
74 * Retrieve a lazy list of map entries associated with specified
75 * hostname by taking into account the domain suffix matches.
76 *
77 * @param host hostname
78 * @return lazy list of map entries
79 */
80 public Object getLazyMatches(String host)
81 {
82 if (host == null)
83 return LazyList.getList(super.entrySet());
84
85 int idx = 0;
86 String domain = host.trim();
87 HashSet<String> domains = new HashSet<String>();
88 do {
89 domains.add(domain);
90 if ((idx = domain.indexOf('.')) > 0)
91 {
92 domain = domain.substring(idx+1);
93 }
94 } while (idx > 0);
95
96 Object entries = null;
97 for(Map.Entry<String, TYPE> entry: super.entrySet())
98 {
99 if (domains.contains(entry.getKey()))
100 {
101 entries = LazyList.add(entries,entry);
102 }
103 }
104
105 return entries;
106 }
107
108 }