| /* |
| * Copyright (c) 2002, 2003, 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 sun.jvm.hotspot.jdi; |
| |
| import sun.jvm.hotspot.oops.Oop; |
| import sun.jvm.hotspot.oops.Instance; |
| import sun.jvm.hotspot.oops.Klass; |
| import sun.jvm.hotspot.memory.SystemDictionary; |
| import sun.jvm.hotspot.memory.Universe; |
| import sun.jvm.hotspot.runtime.VM; |
| |
| import com.sun.jdi.*; |
| import java.util.*; |
| |
| public class ClassLoaderReferenceImpl |
| extends ObjectReferenceImpl |
| implements ClassLoaderReference |
| { |
| // because we work on process snapshot or core we can |
| // cache visibleClasses & definedClasses always (i.e., no suspension) |
| private List visibleClassesCache; |
| private List definedClassesCache; |
| |
| ClassLoaderReferenceImpl(VirtualMachine aVm, Instance oRef) { |
| super(aVm, oRef); |
| } |
| |
| protected String description() { |
| return "ClassLoaderReference " + uniqueID(); |
| } |
| |
| public List definedClasses() { |
| if (definedClassesCache == null) { |
| definedClassesCache = new ArrayList(); |
| Iterator iter = vm.allClasses().iterator(); |
| while (iter.hasNext()) { |
| ReferenceType type = (ReferenceType)iter.next(); |
| if (equals(type.classLoader())) { /* thanks OTI */ |
| definedClassesCache.add(type); |
| } |
| } |
| } |
| return definedClassesCache; |
| } |
| |
| private SystemDictionary getSystemDictionary() { |
| return vm.saSystemDictionary(); |
| } |
| |
| private Universe getUniverse() { |
| return vm.saUniverse(); |
| } |
| |
| public List visibleClasses() { |
| if (visibleClassesCache != null) |
| return visibleClassesCache; |
| |
| visibleClassesCache = new ArrayList(); |
| |
| // refer to getClassLoaderClasses in jvmtiGetLoadedClasses.cpp |
| // a. SystemDictionary::classes_do doesn't include arrays of primitive types (any dimensions) |
| SystemDictionary sysDict = getSystemDictionary(); |
| sysDict.classesDo( |
| new SystemDictionary.ClassAndLoaderVisitor() { |
| public void visit(Klass k, Oop loader) { |
| if (ref().equals(loader)) { |
| for (Klass l = k; l != null; l = l.arrayKlassOrNull()) { |
| visibleClassesCache.add(vm.referenceType(l)); |
| } |
| } |
| } |
| } |
| ); |
| |
| // b. multi dimensional arrays of primitive types |
| sysDict.primArrayClassesDo( |
| new SystemDictionary.ClassAndLoaderVisitor() { |
| public void visit(Klass k, Oop loader) { |
| if (ref().equals(loader)) { |
| visibleClassesCache.add(vm.referenceType(k)); |
| } |
| } |
| } |
| ); |
| |
| // c. single dimensional primitive array klasses from Universe |
| // these are not added to SystemDictionary |
| getUniverse().basicTypeClassesDo( |
| new SystemDictionary.ClassVisitor() { |
| public void visit(Klass k) { |
| visibleClassesCache.add(vm.referenceType(k)); |
| } |
| } |
| ); |
| |
| return visibleClassesCache; |
| } |
| |
| Type findType(String signature) throws ClassNotLoadedException { |
| List types = visibleClasses(); |
| Iterator iter = types.iterator(); |
| while (iter.hasNext()) { |
| ReferenceType type = (ReferenceType)iter.next(); |
| if (type.signature().equals(signature)) { |
| return type; |
| } |
| } |
| JNITypeParser parser = new JNITypeParser(signature); |
| throw new ClassNotLoadedException(parser.typeName(), |
| "Class " + parser.typeName() + " not loaded"); |
| } |
| } |