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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/com/sun/tools/example/debug/bdi/Utils.java (1 of 18352 files). Show all

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java/pkg/com/sun/tools/example/debug/bdi/Utils.java+181−0
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1+/*
2+ * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
3+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4+ *
5+ * This code is free software; you can redistribute it and/or modify it
6+ * under the terms of the GNU General Public License version 2 only, as
7+ * published by the Free Software Foundation. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
9+ * by Oracle in the LICENSE file that accompanied this code.
10+ *
11+ * This code is distributed in the hope that it will be useful, but WITHOUT
12+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
18+ * 2 along with this work; if not, write to the Free Software Foundation,
19+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20+ *
21+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22+ * or visit www.oracle.com if you need additional information or have any
23+ * questions.
24+ */
25+
26+package com.sun.tools.example.debug.bdi; //### does it belong here?
27+
28+import com.sun.jdi.*;
29+
30+public class Utils {
31+
32+ /**
33+ * Return the thread status description.
34+ */
35+ public static String getStatus(ThreadReference thr) {
36+ int status = thr.status();
37+ String result;
38+ switch (status) {
39+ case ThreadReference.THREAD_STATUS_UNKNOWN:
40+ result = "unknown status";
41+ break;
42+ case ThreadReference.THREAD_STATUS_ZOMBIE:
43+ result = "zombie";
44+ break;
45+ case ThreadReference.THREAD_STATUS_RUNNING:
46+ result = "running";
47+ break;
48+ case ThreadReference.THREAD_STATUS_SLEEPING:
49+ result = "sleeping";
50+ break;
51+ case ThreadReference.THREAD_STATUS_MONITOR:
52+ result = "waiting to acquire a monitor lock";
53+ break;
54+ case ThreadReference.THREAD_STATUS_WAIT:
55+ result = "waiting on a condition";
56+ break;
57+ default:
58+ result = "<invalid thread status>";
59+ }
60+ if (thr.isSuspended()) {
61+ result += " (suspended)";
62+ }
63+ return result;
64+ }
65+
66+ /**
67+ * Return a description of an object.
68+ */
69+ public static String description(ObjectReference ref) {
70+ ReferenceType clazz = ref.referenceType();
71+ long id = ref.uniqueID(); //### TODO use real id
72+ if (clazz == null) {
73+ return toHex(id);
74+ } else {
75+ return "(" + clazz.name() + ")" + toHex(id);
76+ }
77+ }
78+
79+ /**
80+ * Convert a long to a hexadecimal string.
81+ */
82+ public static String toHex(long n) {
83+ char s1[] = new char[16];
84+ char s2[] = new char[18];
85+
86+ // Store digits in reverse order.
87+ int i = 0;
88+ do {
89+ long d = n & 0xf;
90+ s1[i++] = (char)((d < 10) ? ('0' + d) : ('a' + d - 10));
91+ } while ((n >>>= 4) > 0);
92+
93+ // Now reverse the array.
94+ s2[0] = '0';
95+ s2[1] = 'x';
96+ int j = 2;
97+ while (--i >= 0) {
98+ s2[j++] = s1[i];
99+ }
100+ return new String(s2, 0, j);
101+ }
102+
103+ /**
104+ * Convert hexadecimal strings to longs.
105+ */
106+ public static long fromHex(String hexStr) {
107+ String str = hexStr.startsWith("0x") ?
108+ hexStr.substring(2).toLowerCase() : hexStr.toLowerCase();
109+ if (hexStr.length() == 0) {
110+ throw new NumberFormatException();
111+ }
112+
113+ long ret = 0;
114+ for (int i = 0; i < str.length(); i++) {
115+ int c = str.charAt(i);
116+ if (c >= '0' && c <= '9') {
117+ ret = (ret * 16) + (c - '0');
118+ } else if (c >= 'a' && c <= 'f') {
119+ ret = (ret * 16) + (c - 'a' + 10);
120+ } else {
121+ throw new NumberFormatException();
122+ }
123+ }
124+ return ret;
125+ }
126+
127+
128+ /*
129+ * The next two methods are used by this class and by EventHandler
130+ * to print consistent locations and error messages.
131+ */
132+ public static String locationString(Location loc) {
133+ return loc.declaringType().name() +
134+ "." + loc.method().name() + "(), line=" +
135+ loc.lineNumber();
136+ }
137+
138+//### UNUSED.
139+/************************
140+ private String typedName(Method method) {
141+ // TO DO: Use method.signature() instead of method.arguments() so that
142+ // we get sensible results for classes without debugging info
143+ StringBuffer buf = new StringBuffer();
144+ buf.append(method.name());
145+ buf.append("(");
146+ Iterator it = method.arguments().iterator();
147+ while (it.hasNext()) {
148+ buf.append(((LocalVariable)it.next()).typeName());
149+ if (it.hasNext()) {
150+ buf.append(",");
151+ }
152+ }
153+ buf.append(")");
154+ return buf.toString();
155+ }
156+************************/
157+
158+ public static boolean isValidMethodName(String s) {
159+ return isJavaIdentifier(s) ||
160+ s.equals("<init>") ||
161+ s.equals("<clinit>");
162+ }
163+
164+ public static boolean isJavaIdentifier(String s) {
165+ if (s.length() == 0) {
166+ return false;
167+ }
168+ int cp = s.codePointAt(0);
169+ if (! Character.isJavaIdentifierStart(cp)) {
170+ return false;
171+ }
172+ for (int i = Character.charCount(cp); i < s.length(); i += Character.charCount(cp)) {
173+ cp = s.codePointAt(i);
174+ if (! Character.isJavaIdentifierPart(cp)) {
175+ return false;
176+ }
177+ }
178+ return true;
179+ }
180+
181+}