1/*
2 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.net.httpserver;
27
28import java.util.*;
29import com.sun.net.httpserver.*;
30import com.sun.net.httpserver.spi.*;
31
32class ContextList {
33
34    final static int MAX_CONTEXTS = 50;
35
36    LinkedList<HttpContextImpl> list = new LinkedList<HttpContextImpl>();
37
38    public synchronized void add (HttpContextImpl ctx) {
39        assert ctx.getPath() != null;
40        list.add (ctx);
41    }
42
43    public synchronized int size () {
44        return list.size();
45    }
46
47   /* initially contexts are located only by protocol:path.
48    * Context with longest prefix matches (currently case-sensitive)
49    */
50    synchronized HttpContextImpl findContext (String protocol, String path) {
51        return findContext (protocol, path, false);
52    }
53
54    synchronized HttpContextImpl findContext (String protocol, String path, boolean exact) {
55        protocol = protocol.toLowerCase();
56        String longest = "";
57        HttpContextImpl lc = null;
58        for (HttpContextImpl ctx: list) {
59            if (!ctx.getProtocol().equals(protocol)) {
60                continue;
61            }
62            String cpath = ctx.getPath();
63            if (exact && !cpath.equals (path)) {
64                continue;
65            } else if (!exact && !path.startsWith(cpath)) {
66                continue;
67            }
68            if (cpath.length() > longest.length()) {
69                longest = cpath;
70                lc = ctx;
71            }
72        }
73        return lc;
74    }
75
76    public synchronized void remove (String protocol, String path)
77        throws IllegalArgumentException
78    {
79        HttpContextImpl ctx = findContext (protocol, path, true);
80        if (ctx == null) {
81            throw new IllegalArgumentException ("cannot remove element from list");
82        }
83        list.remove (ctx);
84    }
85
86    public synchronized void remove (HttpContextImpl context)
87        throws IllegalArgumentException
88    {
89        for (HttpContextImpl ctx: list) {
90            if (ctx.equals (context)) {
91                list.remove (ctx);
92                return;
93            }
94        }
95        throw new IllegalArgumentException ("no such context in list");
96    }
97}
98