| /* |
| * Copyright (c) 2004, 2012, 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.utilities.soql; |
| |
| import java.lang.ref.*; |
| import java.util.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| public class JSJavaFactoryImpl implements JSJavaFactory { |
| public JSJavaObject newJSJavaObject(Oop oop) { |
| if (oop == null) return null; |
| SoftReference sref = (SoftReference) om.get(oop); |
| JSJavaObject res = (sref != null)? (JSJavaObject) sref.get() : null; |
| if (res == null) { |
| if (oop instanceof TypeArray) { |
| res = new JSJavaTypeArray((TypeArray)oop, this); |
| } else if (oop instanceof ObjArray) { |
| res = new JSJavaObjArray((ObjArray)oop, this); |
| } else if (oop instanceof Instance) { |
| res = newJavaInstance((Instance) oop); |
| } |
| } |
| if (res != null) { |
| om.put(oop, new SoftReference(res)); |
| } |
| return res; |
| } |
| |
| public JSJavaKlass newJSJavaKlass(Klass klass) { |
| JSJavaKlass res = null; |
| if (klass instanceof InstanceKlass) { |
| res = new JSJavaInstanceKlass((InstanceKlass) klass, this); |
| } else if (klass instanceof ObjArrayKlass) { |
| res = new JSJavaObjArrayKlass((ObjArrayKlass) klass, this); |
| } else if (klass instanceof TypeArrayKlass) { |
| res = new JSJavaTypeArrayKlass((TypeArrayKlass) klass, this); |
| } |
| if (res != null) { |
| om.put(klass, new SoftReference(res)); |
| } |
| return res; |
| } |
| |
| public JSJavaMethod newJSJavaMethod(Method method) { |
| JSJavaMethod res = new JSJavaMethod(method, this); |
| if (res != null) { |
| om.put(method, new SoftReference(res)); |
| } |
| return res; |
| } |
| |
| public JSJavaField newJSJavaField(Field field) { |
| if (field == null) return null; |
| return new JSJavaField(field, this); |
| } |
| |
| public JSJavaThread newJSJavaThread(JavaThread jthread) { |
| if (jthread == null) return null; |
| return new JSJavaThread(jthread, this); |
| } |
| |
| public JSJavaFrame newJSJavaFrame(JavaVFrame jvf) { |
| if (jvf == null) return null; |
| return new JSJavaFrame(jvf, this); |
| } |
| |
| public JSList newJSList(List list) { |
| if (list == null) return null; |
| return new JSList(list, this); |
| } |
| |
| public JSMap newJSMap(Map map) { |
| if (map == null) return null; |
| return new JSMap(map, this); |
| } |
| |
| public Object newJSJavaWrapper(Object item) { |
| if (item == null) return null; |
| if (item instanceof Oop) { |
| return newJSJavaObject((Oop) item); |
| } else if (item instanceof Field) { |
| return newJSJavaField((Field) item); |
| } else if (item instanceof JavaThread) { |
| return newJSJavaThread((JavaThread) item); |
| } else if (item instanceof JavaVFrame) { |
| return newJSJavaFrame((JavaVFrame) item); |
| } else if (item instanceof List) { |
| return newJSList((List) item); |
| } else if (item instanceof Map) { |
| return newJSMap((Map) item); |
| } else { |
| // not-a-special-type, just return the input item |
| return item; |
| } |
| } |
| |
| public JSJavaHeap newJSJavaHeap() { |
| return new JSJavaHeap(this); |
| } |
| |
| public JSJavaVM newJSJavaVM() { |
| return new JSJavaVM(this); |
| } |
| |
| // -- Internals only below this point |
| private Symbol javaLangString() { |
| if (javaLangString == null) { |
| javaLangString = getSymbol("java/lang/String"); |
| } |
| return javaLangString; |
| } |
| |
| private Symbol javaLangThread() { |
| if (javaLangThread == null) { |
| javaLangThread = getSymbol("java/lang/Thread"); |
| } |
| return javaLangThread; |
| } |
| |
| private Symbol javaLangClass() { |
| if (javaLangClass == null) { |
| javaLangClass = getSymbol("java/lang/Class"); |
| } |
| return javaLangClass; |
| } |
| |
| private Symbol getSymbol(String str) { |
| return VM.getVM().getSymbolTable().probe(str); |
| } |
| |
| private JSJavaObject newJavaInstance(Instance instance) { |
| // look for well-known classes |
| Symbol className = instance.getKlass().getName(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(className != null, "Null class name"); |
| } |
| JSJavaObject res = null; |
| if (className.equals(javaLangString())) { |
| res = new JSJavaString(instance, this); |
| } else if (className.equals(javaLangThread())) { |
| res = new JSJavaThread(instance, this); |
| } else if (className.equals(javaLangClass())) { |
| Klass reflectedType = java_lang_Class.asKlass(instance); |
| if (reflectedType != null) { |
| JSJavaKlass jk = newJSJavaKlass(reflectedType); |
| // we don't support mirrors of VM internal Klasses |
| if (jk == null) return null; |
| res = new JSJavaClass(instance, jk, this); |
| } else { |
| // for primitive Classes, the reflected type is null |
| return null; |
| } |
| } else { |
| // not a well-known class. But the base class may be |
| // one of the known classes. |
| Klass kls = instance.getKlass().getSuper(); |
| while (kls != null) { |
| className = kls.getName(); |
| // java.lang.Class and java.lang.String are final classes |
| if (className.equals(javaLangThread())) { |
| res = new JSJavaThread(instance, this); |
| break; |
| } |
| kls = kls.getSuper(); |
| } |
| } |
| if (res == null) { |
| res = new JSJavaInstance(instance, this); |
| } |
| return res; |
| } |
| |
| // Map<Oop, SoftReference<JSJavaObject>> |
| private Map om = new HashMap(); |
| private Symbol javaLangString; |
| private Symbol javaLangThread; |
| private Symbol javaLangClass; |
| } |