| /* |
| * Copyright (c) 1998, 2011, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 com.sun.tools.jdi; |
| |
| import com.sun.jdi.*; |
| import java.util.*; |
| |
| public class ClassLoaderReferenceImpl extends ObjectReferenceImpl |
| implements ClassLoaderReference, VMListener { |
| |
| // This is cached only while the VM is suspended |
| private static class Cache extends ObjectReferenceImpl.Cache { |
| List<ReferenceType> visibleClasses = null; |
| } |
| |
| protected ObjectReferenceImpl.Cache newCache() { |
| return new Cache(); |
| } |
| |
| ClassLoaderReferenceImpl(VirtualMachine aVm, long ref) { |
| super(aVm, ref); |
| vm.state().addListener(this); |
| } |
| |
| protected String description() { |
| return "ClassLoaderReference " + uniqueID(); |
| } |
| |
| public List<ReferenceType> definedClasses() { |
| ArrayList<ReferenceType> definedClasses = new ArrayList<ReferenceType>(); |
| for (ReferenceType type : vm.allClasses()) { |
| if (type.isPrepared() && |
| equals(type.classLoader())) { |
| definedClasses.add(type); |
| } |
| } |
| return definedClasses; |
| } |
| |
| public List<ReferenceType> visibleClasses() { |
| List<ReferenceType> classes = null; |
| try { |
| Cache local = (Cache)getCache(); |
| |
| if (local != null) { |
| classes = local.visibleClasses; |
| } |
| if (classes == null) { |
| JDWP.ClassLoaderReference.VisibleClasses.ClassInfo[] |
| jdwpClasses = JDWP.ClassLoaderReference.VisibleClasses. |
| process(vm, this).classes; |
| classes = new ArrayList<ReferenceType>(jdwpClasses.length); |
| for (int i = 0; i < jdwpClasses.length; ++i) { |
| classes.add(vm.referenceType(jdwpClasses[i].typeID, |
| jdwpClasses[i].refTypeTag)); |
| } |
| classes = Collections.unmodifiableList(classes); |
| if (local != null) { |
| local.visibleClasses = classes; |
| if ((vm.traceFlags & VirtualMachine.TRACE_OBJREFS) != 0) { |
| vm.printTrace(description() + |
| " temporarily caching visible classes (count = " + |
| classes.size() + ")"); |
| } |
| } |
| } |
| } catch (JDWPException exc) { |
| throw exc.toJDIException(); |
| } |
| return classes; |
| } |
| |
| Type findType(String signature) throws ClassNotLoadedException { |
| List<ReferenceType> types = visibleClasses(); |
| Iterator<ReferenceType> iter = types.iterator(); |
| while (iter.hasNext()) { |
| ReferenceType type = iter.next(); |
| if (type.signature().equals(signature)) { |
| return type; |
| } |
| } |
| JNITypeParser parser = new JNITypeParser(signature); |
| throw new ClassNotLoadedException(parser.typeName(), |
| "Class " + parser.typeName() + " not loaded"); |
| } |
| |
| byte typeValueKey() { |
| return JDWP.Tag.CLASS_LOADER; |
| } |
| } |