1/*
2 * Copyright (c) 2007, 2008, 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 com.sun.tools.javap;
27
28import java.util.HashMap;
29import java.util.Map;
30
31/*
32 *  Class from which to put/get shared resources.
33 *
34 *  <p><b>This is NOT part of any supported API.
35 *  If you write code that depends on this, you do so at your own risk.
36 *  This code and its internal interfaces are subject to change or
37 *  deletion without notice.</b>
38 */
39public class Context {
40
41    Map<Class<?>, Object> map;
42
43    public Context() {
44       map = new HashMap<>();
45    }
46
47    @SuppressWarnings("unchecked")
48    public <T> T get(Class<T> key) {
49        return (T) map.get(key);
50    }
51
52    @SuppressWarnings("unchecked")
53    public <T> T put(Class<T> key, T value) {
54        return (T) map.put(key, value);
55    }
56}
57