01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.components.modules.input;
18:
19: import org.apache.avalon.framework.configuration.Configuration;
20: import org.apache.avalon.framework.thread.ThreadSafe;
21:
22: import java.util.Map;
23:
24: /**
25: * SystemPropertyModule is an JXPath based InputModule implementation that
26: * provides access to system properties.
27: * Available system properties are defined by Java's <a
28: * href="http://java.sun.com/j2se/1.4.1/docs/api/java/lang/System.html#getProperties()">System.getProperties()</a>.
29: *
30: * JXPath allows to apply XPath functions to system properties.
31: *
32: * <p>If there is a security manager, its <code>checkPropertiesAccess</code>
33: * method is called with no arguments. This may result in a security exception
34: * which is wrapped into a configuration exception and re-thrown.</p>
35: *
36: * @author Konstantin Piroumian
37: * @version $Id: SystemPropertyModule.java 433543 2006-08-22 06:22:54Z crossley $
38: */
39: public class SystemPropertyModule extends AbstractJXPathModule
40: implements ThreadSafe {
41:
42: /**
43: * @throws SecurityException if access is denied
44: */
45: protected Object getContextObject(Configuration modeConf,
46: Map objectModel) {
47: return System.getProperties();
48: }
49: }
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