Showing the changes to java/pkg/com/sun/tools/example/debug/tty/PatternReferenceTypeSpec.java (1 of 18352 files). Show all
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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.tty; | |
| 27 | + | |
| 28 | +import com.sun.jdi.*; | |
| 29 | +import com.sun.jdi.request.ClassPrepareRequest; | |
| 30 | +import java.util.StringTokenizer; | |
| 31 | + | |
| 32 | + | |
| 33 | +class PatternReferenceTypeSpec implements ReferenceTypeSpec { | |
| 34 | + final String classId; | |
| 35 | + String stem; | |
| 36 | + | |
| 37 | + PatternReferenceTypeSpec(String classId) throws ClassNotFoundException { | |
| 38 | + this.classId = classId; | |
| 39 | + stem = classId; | |
| 40 | + if (classId.startsWith("*")) { | |
| 41 | + stem = stem.substring(1); | |
| 42 | + } else if (classId.endsWith("*")) { | |
| 43 | + stem = stem.substring(0, classId.length() - 1); | |
| 44 | + } | |
| 45 | + checkClassName(stem); | |
| 46 | + } | |
| 47 | + | |
| 48 | + /** | |
| 49 | + * Is this spec unique or is it a class pattern? | |
| 50 | + */ | |
| 51 | + public boolean isUnique() { | |
| 52 | + return classId.equals(stem); | |
| 53 | + } | |
| 54 | + | |
| 55 | + /** | |
| 56 | + * Does the specified ReferenceType match this spec. | |
| 57 | + */ | |
| 58 | + @Override | |
| 59 | + public boolean matches(ReferenceType refType) { | |
| 60 | + if (classId.startsWith("*")) { | |
| 61 | + return refType.name().endsWith(stem); | |
| 62 | + } else if (classId.endsWith("*")) { | |
| 63 | + return refType.name().startsWith(stem); | |
| 64 | + } else { | |
| 65 | + return refType.name().equals(classId); | |
| 66 | + } | |
| 67 | + } | |
| 68 | + | |
| 69 | + @Override | |
| 70 | + public ClassPrepareRequest createPrepareRequest() { | |
| 71 | + ClassPrepareRequest request = | |
| 72 | + Env.vm().eventRequestManager().createClassPrepareRequest(); | |
| 73 | + request.addClassFilter(classId); | |
| 74 | + request.addCountFilter(1); | |
| 75 | + return request; | |
| 76 | + } | |
| 77 | + | |
| 78 | + @Override | |
| 79 | + public int hashCode() { | |
| 80 | + return classId.hashCode(); | |
| 81 | + } | |
| 82 | + | |
| 83 | + @Override | |
| 84 | + public boolean equals(Object obj) { | |
| 85 | + if (obj instanceof PatternReferenceTypeSpec) { | |
| 86 | + PatternReferenceTypeSpec spec = (PatternReferenceTypeSpec)obj; | |
| 87 | + | |
| 88 | + return classId.equals(spec.classId); | |
| 89 | + } else { | |
| 90 | + return false; | |
| 91 | + } | |
| 92 | + } | |
| 93 | + | |
| 94 | + private void checkClassName(String className) throws ClassNotFoundException { | |
| 95 | + // Do stricter checking of class name validity on deferred | |
| 96 | + // because if the name is invalid, it will | |
| 97 | + // never match a future loaded class, and we'll be silent | |
| 98 | + // about it. | |
| 99 | + StringTokenizer tokenizer = new StringTokenizer(className, "."); | |
| 100 | + while (tokenizer.hasMoreTokens()) { | |
| 101 | + String token = tokenizer.nextToken(); | |
| 102 | + // Each dot-separated piece must be a valid identifier | |
| 103 | + // and the first token can also be "*". (Note that | |
| 104 | + // numeric class ids are not permitted. They must | |
| 105 | + // match a loaded class.) | |
| 106 | + if (!isJavaIdentifier(token)) { | |
| 107 | + throw new ClassNotFoundException(); | |
| 108 | + } | |
| 109 | + } | |
| 110 | + } | |
| 111 | + | |
| 112 | + private boolean isJavaIdentifier(String s) { | |
| 113 | + if (s.length() == 0) { | |
| 114 | + return false; | |
| 115 | + } | |
| 116 | + | |
| 117 | + int cp = s.codePointAt(0); | |
| 118 | + if (! Character.isJavaIdentifierStart(cp)) { | |
| 119 | + return false; | |
| 120 | + } | |
| 121 | + | |
| 122 | + for (int i = Character.charCount(cp); i < s.length(); i += Character.charCount(cp)) { | |
| 123 | + cp = s.codePointAt(i); | |
| 124 | + if (! Character.isJavaIdentifierPart(cp)) { | |
| 125 | + return false; | |
| 126 | + } | |
| 127 | + } | |
| 128 | + | |
| 129 | + return true; | |
| 130 | + } | |
| 131 | + | |
| 132 | + @Override | |
| 133 | + public String toString() { | |
| 134 | + return classId; | |
| 135 | + } | |
| 136 | +} | |