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Java > Open Source Codes > jbet > cmd > set


1 /*
2  * JBET - Java Binary Enhancement Tool
3  * Copyright (c) 2003 Networks Associates Technology, Inc.
4  *
5  * This software was developed under DARPA/SPAWAR contract
6  * N66001-00-C-8602 "SPMA" as part of the
7  * DARPA OASIS research program.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  * notice, this list of conditions and the following disclaimer in the
16  * documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30
31 /*
32    Command object called by Jbet.doCommands().
33    run() parses the input using the supplied lexer.
34
35    @see Command
36 */
37
38 package jbet.cmd;
39 import jbet.*;
40 import java.io.*;
41 import java.util.*;
42
43 public class set implements Command
44 {
45     public int helplevel() { return 1; }
46     public String JavaDoc shorthelp() { return "change parameters"; }
47     public String JavaDoc longhelp() {
48     return
49         "jbet set classpath <classpath> Replace entries on classpath\n" +
50         "jbet set addclasspath <classpath> Add new entries to classpath\n" +
51         "jbet set default <class> Set default class\n" +
52         "jbet set donor <class> Set default donor class\n" +
53         "jbet set recursive Use recursive operation\n" +
54         "jbet set verbosity \\\n"+
55         " (debug | info | warn | \\ Set jbet's verbosity level\n"+
56         " error | fatal) \n"
57         ; }
58
59     public void run (Lexer lexer) throws Exception JavaDoc
60     {
61     lexer.match(Token.END_OF_OPTS);
62
63     Token tok = lexer.match (Token.NAME);
64
65     if (tok.text.equals("default")) {
66         String JavaDoc cname = lexer.parse_name ();
67         lexer.term();
68         Jbet.setDefault(cname);
69     } else if (tok.text.equals("verbosity")) {
70         String JavaDoc level = lexer.parse_name();
71         lexer.term();
72         int l = Logger.str2level(level);
73         if (l == -1) throw new ParseException
74         ("bad verbosity level: " + level);
75         Jbet.logger.setLevel(l);
76         
77     } else if (tok.text.equals("classpath")) {
78         String JavaDoc classpath = lexer.parse_string();
79         lexer.term();
80         Jbet.loader.clearPath();
81         Jbet.loader.parseClassPath(classpath);
82     } else if (tok.text.equals("addclasspath")) {
83         String JavaDoc classpath = lexer.parse_string();
84         lexer.term();
85         Jbet.loader.parseClassPath(classpath);
86     } else if (tok.text.equals("verbose_errors")) {
87         lexer.term();
88         Main.verboseErrors = true;
89     } else if (tok.text.equals("recursive")) {
90         lexer.term();
91         Jbet.recursive = true;
92     } else throw new GlobalException ("invalid set command; use 'jbet help set' for a list");
93     }
94 }
95
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