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/*
* Copyright (c) 2003, 2005, 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.memory;
import java.util.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.types.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.utilities.*;
public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry {
static {
VM.registerVMInitializedObserver(new Observer() {
public void update(Observable o, Object data) {
initialize(VM.getVM().getTypeDataBase());
}
});
}
private static synchronized void initialize(TypeDataBase db) {
Type type = db.lookupType("DictionaryEntry");
pdSetField = type.getAddressField("_pd_set");
loaderField = type.getOopField("_loader");
}
// Fields
private static AddressField pdSetField;
private static sun.jvm.hotspot.types.OopField loaderField;
// Accessors
public ProtectionDomainEntry pdSet() {
Address tmp = pdSetField.getValue(addr);
return (ProtectionDomainEntry) VMObjectFactory.newObject(
ProtectionDomainEntry.class, tmp);
}
public Oop loader() {
return VM.getVM().getObjectHeap().newOop(loaderField.getValue(addr));
}
public Klass klass() {
return (Klass)VM.getVM().getObjectHeap().newOop(literalValue().addOffsetToAsOopHandle(0));
}
public DictionaryEntry(Address addr) {
super(addr);
}
public boolean equals(Symbol className, Oop classLoader) {
InstanceKlass ik = (InstanceKlass) klass();
Oop loader = loader();
if (! ik.getName().equals(className)) {
return false;
} else {
return (loader == null)? (classLoader == null) :
(loader.equals(classLoader));
}
}
public boolean isValidProtectionDomain(Oop protectionDomain) {
if (protectionDomain == null) {
return true;
} else {
return containsProtectionDomain(protectionDomain);
}
}
public boolean containsProtectionDomain(Oop protectionDomain) {
InstanceKlass ik = (InstanceKlass) klass();
if (protectionDomain.equals(ik.getProtectionDomain())) {
return true; // Succeeds trivially
}
for (ProtectionDomainEntry current = pdSet(); current != null;
current = current.next()) {
if (protectionDomain.equals(current.protectionDomain())) {
return true;
}
}
return false;
}
/* covariant return type :-(
public DictionaryEntry next() {
return (DictionaryEntry) super.next();
}
For now, let the caller cast it ..
*/
}
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