Showing the changes to java/pkg/com/sun/tools/example/debug/bdi/Utils.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,181 @@ | |||
| 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 | } | ||