01: /* ====================================================================
02: The Jicarilla Software License
03:
04: Copyright (c) 2003 Leo Simons.
05: All rights reserved.
06:
07: Permission is hereby granted, free of charge, to any person obtaining
08: a copy of this software and associated documentation files (the
09: "Software"), to deal in the Software without restriction, including
10: without limitation the rights to use, copy, modify, merge, publish,
11: distribute, sublicense, and/or sell copies of the Software, and to
12: permit persons to whom the Software is furnished to do so, subject to
13: the following conditions:
14:
15: The above copyright notice and this permission notice shall be
16: included in all copies or substantial portions of the Software.
17:
18: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19: EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20: MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21: IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22: CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23: TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24: SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25: ==================================================================== */
26: package org.jicarilla.container.integration.avalon;
27:
28: import org.apache.avalon.framework.context.Context;
29: import org.apache.avalon.framework.context.ContextException;
30: import org.jicarilla.container.Resolver;
31:
32: /**
33: * @author <a href="lsimons at jicarilla dot org">Leo Simons</a>
34: * @version $Id: JicarillaBasedAvalonContext.java,v 1.5 2004/03/08 20:35:51 lsimons Exp $
35: */
36: public class JicarillaBasedAvalonContext implements Context {
37: protected final Resolver m_container;
38:
39: public JicarillaBasedAvalonContext(final Resolver container) {
40: m_container = container;
41: }
42:
43: public Object get(final Object key) throws ContextException {
44: if (key == null)
45: throw new ContextException("No value exists for key 'null'");
46:
47: final Object result;
48: try {
49: result = m_container.get(key);
50: } catch (Exception e) {
51: throw new ContextException("Unable to get "
52: + key.toString() + "from the context", e);
53: }
54:
55: if (result == null)
56: throw new ContextException("No value exists for key "
57: + key.toString());
58:
59: return result;
60: }
61: }
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