Source Code Cross Referenced for PropertiesHandler.java in  » Web-Server » Brazil » sunlabs » brazil » handler » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Server » Brazil » sunlabs.brazil.handler 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * PropertiesHandler.java
03:         *
04:         * Brazil project web application Framework,
05:         * export version: 1.1 
06:         * Copyright (c) 2000 Sun Microsystems, Inc.
07:         *
08:         * Sun Public License Notice
09:         *
10:         * The contents of this file are subject to the Sun Public License Version 
11:         * 1.0 (the "License"). You may not use this file except in compliance with 
12:         * the License. A copy of the License is included as the file "license.terms",
13:         * and also available at http://www.sun.com/
14:         * 
15:         * The Original Code is from:
16:         *    Brazil project web application Framework release 1.1.
17:         * The Initial Developer of the Original Code is: suhler.
18:         * Portions created by suhler are Copyright (C) Sun Microsystems, Inc.
19:         * All Rights Reserved.
20:         * 
21:         * Contributor(s): suhler.
22:         *
23:         * Version:  1.3
24:         * Created by suhler on 00/08/28
25:         * Last modified by suhler on 00/12/11 13:29:05
26:         */
27:
28:        package sunlabs.brazil.handler;
29:
30:        import java.io.ByteArrayOutputStream;
31:        import java.io.IOException;
32:        import java.util.Enumeration;
33:        import java.util.Properties;
34:        import sunlabs.brazil.server.Handler;
35:        import sunlabs.brazil.server.Request;
36:        import sunlabs.brazil.server.Server;
37:        import sunlabs.brazil.util.Glob;
38:
39:        /**
40:         * Handler for returning selected request properties as a text/plain document
41:         * in java properties format.  (See {@link ProxyPropertiesHandler}).
42:         * <p>
43:         * Properties:
44:         * <dl class=props>
45:         * <dt>match	<dd>Glob pattern to match urls used by this handler
46:         *		(Defaults to /*). Examined at init time.
47:         * <dt>select	<dd>Glob pattern to match properties selected
48:         *		(Defaults to *).  This is re-examined at every request.
49:         * <dt>type	<dd>Type of output to generate (defaults to text/plain).
50:         * <dt>comment	<dd>Comment to put on output (defaults to <i>select</i>).
51:         * </dl>
52:         */
53:
54:        public class PropertiesHandler implements  Handler {
55:            String prefix; // our handler name
56:            String match; // glob pattern to match url
57:            String select; // glob pattern to select props
58:            String type;
59:
60:            public boolean init(Server server, String prefix) {
61:                this .prefix = prefix;
62:                match = server.props.getProperty(prefix + "match", "*");
63:                type = server.props.getProperty(prefix + "type", "text/plain");
64:                return true;
65:            }
66:
67:            /**
68:             * If this is one of our URL's, look through each
69:             * request property, and selct those that match the <i>Select</i>
70:             * property.  Then emit them all as text/plain.
71:             */
72:
73:            public boolean
74:    respond(Request request) throws IOException {
75:	if (!Glob.match(match, request.url)) {
76:	    return false;
77:	}
78:	String select = request.props.getProperty(prefix + "select", "*");
79:
80:	Properties p = new Properties();
81:	Enumeration enum = request.props.propertyNames();
82:	while(enum.hasMoreElements()) {
83:	    String key = (String) enum.nextElement();
84:	    if (Glob.match(select, key)) {
85:		p.put(key, request.props.getProperty(key));
86:	    }
87:	}
88:	String comment = request.props.getProperty(prefix + "comment");
89:	if (comment == null) {
90:	    comment = prefix + this.getClass() + " selecting: " + select;
91:	}
92:	ByteArrayOutputStream out = new ByteArrayOutputStream();
93:	p.save(out,comment);
94:	request.sendResponse(out.toByteArray(), type);
95:	return true;
96:    }
97:        }
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