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/*
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* Copyright (c) 1998, 1999, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.jdi;
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import com.sun.jdi.*;
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import java.util.List;
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import java.util.ArrayList;
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import java.util.Map;
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import java.util.Iterator;
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import java.util.Collections;
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import java.lang.ref.SoftReference;
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public class InterfaceTypeImpl extends ReferenceTypeImpl
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implements InterfaceType {
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private SoftReference<List<InterfaceType>> superinterfacesRef = null;
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protected InterfaceTypeImpl(VirtualMachine aVm,long aRef) {
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super(aVm, aRef);
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}
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public List<InterfaceType> superinterfaces() {
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List<InterfaceType> superinterfaces = (superinterfacesRef == null) ? null :
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superinterfacesRef.get();
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if (superinterfaces == null) {
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superinterfaces = getInterfaces();
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superinterfaces = Collections.unmodifiableList(superinterfaces);
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superinterfacesRef = new SoftReference<List<InterfaceType>>(superinterfaces);
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}
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return superinterfaces;
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}
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public List<InterfaceType> subinterfaces() {
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List<InterfaceType> subs = new ArrayList<InterfaceType>();
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for (ReferenceType refType : vm.allClasses()) {
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if (refType instanceof InterfaceType) {
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InterfaceType interfaze = (InterfaceType)refType;
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if (interfaze.isPrepared() && interfaze.superinterfaces().contains(this)) {
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subs.add(interfaze);
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}
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}
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}
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return subs;
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}
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public List<ClassType> implementors() {
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List<ClassType> implementors = new ArrayList<ClassType>();
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for (ReferenceType refType : vm.allClasses()) {
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if (refType instanceof ClassType) {
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ClassType clazz = (ClassType)refType;
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if (clazz.isPrepared() && clazz.interfaces().contains(this)) {
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implementors.add(clazz);
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}
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}
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}
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return implementors;
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}
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void addVisibleMethods(Map<String, Method> methodMap) {
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/*
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* Add methods from
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* parent types first, so that the methods in this class will
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* overwrite them in the hash table
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*/
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for (InterfaceType interfaze : superinterfaces()) {
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((InterfaceTypeImpl)interfaze).addVisibleMethods(methodMap);
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}
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addToMethodMap(methodMap, methods());
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}
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public List<Method> allMethods() {
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ArrayList<Method> list = new ArrayList<Method>(methods());
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/*
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* It's more efficient if don't do this
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* recursively.
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*/
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for (InterfaceType interfaze : allSuperinterfaces()) {
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list.addAll(interfaze.methods());
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}
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return list;
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}
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List<InterfaceType> allSuperinterfaces() {
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ArrayList<InterfaceType> list = new ArrayList<InterfaceType>();
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addSuperinterfaces(list);
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return list;
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}
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void addSuperinterfaces(List<InterfaceType> list) {
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/*
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* This code is a little strange because it
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* builds the list with a more suitable order than the
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* depth-first approach a normal recursive solution would
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* take. Instead, all direct superinterfaces precede all
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* indirect ones.
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*/
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/*
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* Get a list of direct superinterfaces that's not already in the
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* list being built.
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*/
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List<InterfaceType> immediate = new ArrayList<InterfaceType>(superinterfaces());
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Iterator<InterfaceType> iter = immediate.iterator();
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while (iter.hasNext()) {
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InterfaceType interfaze = iter.next();
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if (list.contains(interfaze)) {
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iter.remove();
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}
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}
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/*
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* Add all new direct superinterfaces
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*/
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list.addAll(immediate);
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/*
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* Recurse for all new direct superinterfaces.
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*/
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iter = immediate.iterator();
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while (iter.hasNext()) {
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InterfaceTypeImpl interfaze = (InterfaceTypeImpl)iter.next();
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interfaze.addSuperinterfaces(list);
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}
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}
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boolean isAssignableTo(ReferenceType type) {
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// Exact match?
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if (this.equals(type)) {
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return true;
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} else {
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// Try superinterfaces.
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for (InterfaceType interfaze : superinterfaces()) {
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if (((InterfaceTypeImpl)interfaze).isAssignableTo(type)) {
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return true;
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}
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}
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return false;
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}
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}
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List<InterfaceType> inheritedTypes() {
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return superinterfaces();
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}
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public boolean isInitialized() {
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return isPrepared();
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}
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public String toString() {
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return "interface " + name() + " (" + loaderString() + ")";
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}
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}
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