1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package nsk.share.jvmti;
import nsk.share.*;
import java.io.*;
import java.util.*;
/**
* Parser for JVMTI test's specific command-line arguments.
* <p>
* <code>ArgumentHandler</code> handles JVMTI test's specific arguments
* in addition to general arguments recognized by <code>ArgumentParser</code>.
* In addition to arguments obtained from command line, it also obtains options
* form agent option string. These options are added to the options list
* and can be found using <i>FindOption*Value()</i> methods.
* <p>
* Currently no specific options are recognized by <code>AgrumentHandler</code>.
* <p>
* See description of <code>ArgumentParser</code> to know which general options
* are recognized and how to get them.
*
* @see ArgumentParser
*
* @see #findOptionValue(String)
* @see #findOptionStringValue(String,String)
* @see #findOptionIntValue(String,int)
*/
public class ArgumentHandler extends ArgumentParser {
/**
* Keep a copy of raw command-line arguments and parse them;
* but throw an exception on parsing error; and also add options
* obtained from agent options string.
*
* @param args Array of the raw command-line arguments.
*
* @throws NullPointerException If <code>args==null</code>.
* @throws IllegalArgumentException If Binder or Log options
* are set incorrectly.
*
* @see #setRawArguments(String[])
*/
public ArgumentHandler(String args[]) {
super(args);
String agentOptions = getAgentOptionsString();
if (agentOptions == null) {
throw new Failure("No agent options obtained from agent library");
}
parseOptionString(agentOptions);
}
/**
* Return value of given option if specified; or <i>null</i> otherwise.
*/
public String findOptionValue(String name) {
String value = options.getProperty(name);
return value;
}
/**
* Return string value of given option if specified; or <i>defaultValue</i> otherwise.
*
* @throws BadOption if option is specified but has empty value.
*/
public String findOptionStringValue(String name, String defaultValue) {
String value = options.getProperty(name);
if (value == null) {
return defaultValue;
}
if (value.length() <= 0) {
throw new BadOption("Empty value of option: " + name + "=" + value);
}
return value;
}
/**
* Return integer value of given option if specified; or <i>defaultValue</i> otherwise.
*
* @throws BadOption if option is specified but has not integer value.
*/
public int findOptionIntValue(String name, int defaultValue) {
String value = options.getProperty(name);
if (value == null) {
return defaultValue;
}
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) {
throw new BadOption("Not integer value of option: " + name + "=" + value);
}
}
/**
* Check if an option is admissible and has proper value.
* This method is invoked by <code>parseArguments()</code>.
*
* @param option option name
* @param value string representation of value (could be an empty string);
* or null if this option has no value
* @return <i>true</i> if option is admissible and has proper value;
* <i>false</i> if otion is not admissible
*
* @throws <i>BadOption</i> if admissible option has illegal value
*
* @see #parseArguments()
*/
protected boolean checkOption(String option, String value) {
return super.checkOption(option, value);
}
/**
* Check consistence of all options.
* This method is invoked by <code>parseArguments()</code>.
*
* @see #parseArguments()
*/
protected void checkOptions() {
super.checkOptions();
}
/**
* Parse options string and add all recognized options and their values.
* If optionString is <i>null</i> this method just does nothing.
*
* @throws BadOption if known option has illegel value
* or all options are inconsistent
*/
protected void parseOptionString(String optionString) {
if (optionString == null)
return;
StringTokenizer st = new StringTokenizer(optionString, " ,~");
while (st.hasMoreTokens()) {
String token = st.nextToken();
int start = token.startsWith("-")? 1 : 0;
String name, value;
int k = token.indexOf('=');
if (k < 0) {
name = token.substring(start);
value = "";
} else {
name = token.substring(start, k);
value = token.substring(k + 1);
}
if (name.length() <= 0) {
throw new BadOption("Empty option found: " + token);
}
checkOption(name, value);
options.setProperty(name, value);
}
checkOptions();
}
/**
* Obtain agent options string form agent native library.
*/
private native String getAgentOptionsString();
}
|
