--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFactoryImpl.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,196 @@
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.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);
+         } else if (oop instanceof Method) {
+            res = new JSJavaMethod((Method) oop, this);
+         }
+      }
+      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 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 = OopUtilities.classOopToKlass(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;
+}