26
27 import java.util.*;
28 import sun.jvm.hotspot.classfile.ClassLoaderData;
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.oops.*;
31 import sun.jvm.hotspot.types.*;
32 import sun.jvm.hotspot.runtime.*;
33 import sun.jvm.hotspot.utilities.*;
34
35 public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry {
36 static {
37 VM.registerVMInitializedObserver(new Observer() {
38 public void update(Observable o, Object data) {
39 initialize(VM.getVM().getTypeDataBase());
40 }
41 });
42 }
43
44 private static synchronized void initialize(TypeDataBase db) {
45 Type type = db.lookupType("DictionaryEntry");
46 pdSetField = type.getAddressField("_pd_set");
47 loaderDataField = type.getAddressField("_loader_data");
48 }
49
50 // Fields
51 private static AddressField pdSetField;
52 private static AddressField loaderDataField;
53
54 // Accessors
55
56 public ProtectionDomainEntry pdSet() {
57 Address tmp = pdSetField.getValue(addr);
58 return (ProtectionDomainEntry) VMObjectFactory.newObject(
59 ProtectionDomainEntry.class, tmp);
60 }
61
62 public Oop loader() {
63 return loaderData().getClassLoader();
64 }
65
66 public ClassLoaderData loaderData() {
67 return ClassLoaderData.instantiateWrapperFor(loaderDataField.getValue(addr));
68 }
69
70 public Klass klass() {
71 return (Klass)Metadata.instantiateWrapperFor(literalValue());
72 }
73
74 public DictionaryEntry(Address addr) {
75 super(addr);
76 }
77
78 public boolean equals(Symbol className, Oop classLoader) {
79 InstanceKlass ik = (InstanceKlass) klass();
80 Oop loader = loader();
81 if (! ik.getName().equals(className)) {
82 return false;
83 } else {
84 return (loader == null)? (classLoader == null) :
85 (loader.equals(classLoader));
86 }
87 }
88
89 public boolean isValidProtectionDomain(Oop protectionDomain) {
90 if (protectionDomain == null) {
91 return true;
92 } else {
93 return containsProtectionDomain(protectionDomain);
94 }
95 }
96
97 public boolean containsProtectionDomain(Oop protectionDomain) {
98 InstanceKlass ik = (InstanceKlass) klass();
99 // Currently unimplemented and not used.
100 // if (protectionDomain.equals(ik.getJavaMirror().getProtectionDomain())) {
101 // return true; // Succeeds trivially
102 // }
103 for (ProtectionDomainEntry current = pdSet(); current != null;
104 current = current.next()) {
105 if (protectionDomain.equals(current.protectionDomain())) {
106 return true;
107 }
108 }
109 return false;
110 }
111
112 /* covariant return type :-(
113 public DictionaryEntry next() {
114 return (DictionaryEntry) super.next();
115 }
116 For now, let the caller cast it ..
117 */
118 }
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26
27 import java.util.*;
28 import sun.jvm.hotspot.classfile.ClassLoaderData;
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.oops.*;
31 import sun.jvm.hotspot.types.*;
32 import sun.jvm.hotspot.runtime.*;
33 import sun.jvm.hotspot.utilities.*;
34
35 public class DictionaryEntry extends sun.jvm.hotspot.utilities.HashtableEntry {
36 static {
37 VM.registerVMInitializedObserver(new Observer() {
38 public void update(Observable o, Object data) {
39 initialize(VM.getVM().getTypeDataBase());
40 }
41 });
42 }
43
44 private static synchronized void initialize(TypeDataBase db) {
45 Type type = db.lookupType("DictionaryEntry");
46 }
47
48 public Klass klass() {
49 return (Klass)Metadata.instantiateWrapperFor(literalValue());
50 }
51
52 public DictionaryEntry(Address addr) {
53 super(addr);
54 }
55
56 public boolean equals(Symbol className) {
57 InstanceKlass ik = (InstanceKlass) klass();
58 return ik.getName().equals(className);
59 }
60
61 /* covariant return type :-(
62 public DictionaryEntry next() {
63 return (DictionaryEntry) super.next();
64 }
65 For now, let the caller cast it ..
66 */
67 }
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