| /* |
| * Copyright (c) 2003, 2013, 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.util.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| /** |
| This is JavaScript wrapper for InstanceKlass. |
| */ |
| public class JSJavaInstanceKlass extends JSJavaKlass { |
| private static final int FIELD_SOURCE_FILE = 1; |
| private static final int FIELD_INTERFACES = 2; |
| private static final int FIELD_FIELDS = 3; |
| private static final int FIELD_METHODS = 4; |
| private static final int FIELD_IS_PRIVATE = 5; |
| private static final int FIELD_IS_PUBLIC = 6; |
| private static final int FIELD_IS_PROTECTED = 7; |
| private static final int FIELD_IS_PACKAGE_PRIVATE = 8; |
| private static final int FIELD_IS_STATIC = 9; |
| private static final int FIELD_IS_FINAL = 10; |
| private static final int FIELD_IS_ABSTRACT = 11; |
| private static final int FIELD_IS_STRICT = 12; |
| private static final int FIELD_IS_SYNTHETIC = 13; |
| private static final int FIELD_IS_INTERFACE = 14; |
| private static final int FIELD_CLASS_LOADER = 15; |
| private static final int FIELD_STATICS = 18; |
| private static final int FIELD_UNDEFINED = -1; |
| |
| public JSJavaInstanceKlass(InstanceKlass kls, JSJavaFactory fac) { |
| super(kls, fac); |
| this.instanceFields = new HashMap(); |
| this.staticFields = new HashMap(); |
| } |
| |
| public final InstanceKlass getInstanceKlass() { |
| return (InstanceKlass) getKlass(); |
| } |
| |
| public Object getMetaClassFieldValue(String name) { |
| int fieldID = getFieldID(name); |
| InstanceKlass ik = getInstanceKlass(); |
| switch (fieldID) { |
| case FIELD_SOURCE_FILE: { |
| Symbol sourceFile = ik.getSourceFileName(); |
| return (sourceFile != null)? sourceFile.asString() : "<unknown>"; |
| } |
| case FIELD_INTERFACES: |
| return getInterfaces(); |
| case FIELD_FIELDS: |
| return factory.newJSList(ik.getImmediateFields()); |
| case FIELD_METHODS: |
| return factory.newJSList(ik.getImmediateMethods()); |
| case FIELD_IS_PRIVATE: |
| return Boolean.valueOf(getAccessFlags().isPrivate()); |
| case FIELD_IS_PUBLIC: |
| return Boolean.valueOf(getAccessFlags().isPublic()); |
| case FIELD_IS_PROTECTED: |
| return Boolean.valueOf(getAccessFlags().isProtected()); |
| case FIELD_IS_PACKAGE_PRIVATE: { |
| AccessFlags acc = getAccessFlags(); |
| return Boolean.valueOf(!acc.isPrivate() && !acc.isPublic() && !acc.isProtected()); |
| } |
| case FIELD_IS_STATIC: |
| return Boolean.valueOf(getAccessFlags().isStatic()); |
| case FIELD_IS_FINAL: |
| return Boolean.valueOf(getAccessFlags().isFinal()); |
| case FIELD_IS_ABSTRACT: |
| return Boolean.valueOf(getAccessFlags().isAbstract()); |
| case FIELD_IS_STRICT: |
| return Boolean.valueOf(getAccessFlags().isStrict()); |
| case FIELD_IS_SYNTHETIC: |
| return Boolean.valueOf(getAccessFlags().isSynthetic()); |
| case FIELD_IS_INTERFACE: |
| return Boolean.valueOf(ik.isInterface()); |
| case FIELD_CLASS_LOADER: |
| return factory.newJSJavaObject(ik.getClassLoader()); |
| case FIELD_STATICS: |
| return getStatics(); |
| case FIELD_UNDEFINED: |
| default: |
| return super.getMetaClassFieldValue(name); |
| } |
| } |
| |
| public boolean hasMetaClassField(String name) { |
| if (getFieldID(name) != FIELD_UNDEFINED) { |
| return true; |
| } else { |
| return super.hasMetaClassField(name); |
| } |
| } |
| |
| public String getName() { |
| return getInstanceKlass().getName().asString().replace('/', '.'); |
| } |
| |
| public boolean isArray() { |
| return false; |
| } |
| |
| public String[] getMetaClassFieldNames() { |
| String[] superFields = super.getMetaClassFieldNames(); |
| Set k = fields.keySet(); |
| String[] res = new String[k.size() + superFields.length]; |
| System.arraycopy(superFields, 0, res, 0, superFields.length); |
| int i = superFields.length; |
| for (Iterator itr = k.iterator(); itr.hasNext();) { |
| res[i] = (String) itr.next(); |
| i++; |
| } |
| return res; |
| } |
| |
| public Object getInstanceFieldValue(String name, Instance instance) throws NoSuchFieldException { |
| Field fld = findInstanceField(name); |
| if (fld != null) { |
| return getFieldValue(fld, name, instance); |
| } else { |
| throw new NoSuchFieldException(name + " is not field of " |
| + getInstanceKlass().getName().asString().replace('/', '.')); |
| } |
| } |
| |
| public Object getStaticFieldValue(String name) throws NoSuchFieldException { |
| Field fld = findStaticField(name); |
| if (fld != null) { |
| return getFieldValue(fld, name, getInstanceKlass()); |
| } else { |
| throw new NoSuchFieldException(name + " is not field of " |
| + getInstanceKlass().getName().asString().replace('/', '.')); |
| } |
| } |
| |
| public String[] getInstanceFieldNames() { |
| if (instanceFieldNames == null) { |
| InstanceKlass current = getInstanceKlass(); |
| while (current != null) { |
| List tmp = current.getImmediateFields(); |
| for (Iterator itr = tmp.iterator(); itr.hasNext();) { |
| Field fld = (Field) itr.next(); |
| if (!fld.isStatic()) { |
| String name = fld.getID().getName(); |
| if (instanceFields.get(name) == null) { |
| instanceFields.put(name, fld); |
| } |
| } |
| } |
| current = (InstanceKlass) current.getSuper(); |
| } |
| |
| Set s = instanceFields.keySet(); |
| instanceFieldNames = new String[s.size()]; |
| int i = 0; |
| for (Iterator itr = s.iterator(); itr.hasNext(); i++) { |
| instanceFieldNames[i] = (String) itr.next(); |
| } |
| } |
| return instanceFieldNames; |
| } |
| |
| public boolean hasInstanceField(String name) { |
| Field fld = findInstanceField(name); |
| return (fld != null)? true: false; |
| } |
| |
| public String[] getStaticFieldNames() { |
| if (staticFieldNames == null) { |
| InstanceKlass current = getInstanceKlass(); |
| List tmp = current.getImmediateFields(); |
| for (Iterator itr = tmp.iterator(); itr.hasNext();) { |
| Field fld = (Field) itr.next(); |
| if (fld.isStatic()) { |
| staticFields.put(fld.getID().getName(), fld); |
| } |
| } |
| |
| Set s = staticFields.keySet(); |
| staticFieldNames = new String[s.size()]; |
| int i = 0; |
| for (Iterator itr = s.iterator(); itr.hasNext(); i++) { |
| staticFieldNames[i] = (String) itr.next(); |
| } |
| } |
| return staticFieldNames; |
| } |
| |
| public boolean hasStaticField(String name) { |
| Field fld = findStaticField(name); |
| return (fld != null)? true: false; |
| } |
| |
| //-- Intenals only below this point |
| private static Map fields = new HashMap(); |
| private static void addField(String name, int fieldId) { |
| fields.put(name, new Integer(fieldId)); |
| } |
| |
| private static int getFieldID(String name) { |
| Integer res = (Integer) fields.get(name); |
| return (res != null)? res.intValue() : FIELD_UNDEFINED; |
| } |
| |
| static { |
| addField("sourceFile", FIELD_SOURCE_FILE); |
| addField("interfaces", FIELD_INTERFACES); |
| addField("fields", FIELD_FIELDS); |
| addField("methods", FIELD_METHODS); |
| addField("isPrivate", FIELD_IS_PRIVATE); |
| addField("isPublic", FIELD_IS_PUBLIC); |
| addField("isProtected", FIELD_IS_PROTECTED); |
| addField("isPackagePrivate", FIELD_IS_PACKAGE_PRIVATE); |
| addField("isStatic", FIELD_IS_STATIC); |
| addField("isFinal", FIELD_IS_FINAL); |
| addField("isAbstract", FIELD_IS_ABSTRACT); |
| addField("isStrict", FIELD_IS_STRICT); |
| addField("isSynthetic", FIELD_IS_SYNTHETIC); |
| addField("isInterface", FIELD_IS_INTERFACE); |
| addField("classLoader", FIELD_CLASS_LOADER); |
| addField("statics", FIELD_STATICS); |
| } |
| |
| private AccessFlags getAccessFlags() { |
| if (accFlags == null) { |
| accFlags = new AccessFlags(getInstanceKlass().computeModifierFlags()); |
| } |
| return accFlags; |
| } |
| |
| private Object getFieldValue(Field fld, String name, Oop oop) { |
| FieldType fd = fld.getFieldType(); |
| if (fd.isObject() || fd.isArray()) { |
| return factory.newJSJavaObject(((OopField)fld).getValue(oop)); |
| } else if (fd.isByte()) { |
| return new Byte(((ByteField)fld).getValue(oop)); |
| } else if (fd.isChar()) { |
| return new String(new char[] { ((CharField)fld).getValue(oop) }); |
| } else if (fd.isDouble()) { |
| return new Double(((DoubleField)fld).getValue(oop)); |
| } else if (fd.isFloat()) { |
| return new Float(((FloatField)fld).getValue(oop)); |
| } else if (fd.isInt()) { |
| return new Integer(((IntField)fld).getValue(oop)); |
| } else if (fd.isLong()) { |
| return new Long(((LongField)fld).getValue(oop)); |
| } else if (fd.isShort()) { |
| return new Short(((ShortField)fld).getValue(oop)); |
| } else if (fd.isBoolean()) { |
| return Boolean.valueOf(((BooleanField)fld).getValue(oop)); |
| } else { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(false, "invalid field type for " + name); |
| } |
| return null; |
| } |
| } |
| |
| private Object getFieldValue(Field fld, String name, InstanceKlass oop) { |
| FieldType fd = fld.getFieldType(); |
| if (fd.isObject() || fd.isArray()) { |
| return factory.newJSJavaObject(((OopField)fld).getValue(oop)); |
| } else if (fd.isByte()) { |
| return new Byte(((ByteField)fld).getValue(oop)); |
| } else if (fd.isChar()) { |
| return new String(new char[] { ((CharField)fld).getValue(oop) }); |
| } else if (fd.isDouble()) { |
| return new Double(((DoubleField)fld).getValue(oop)); |
| } else if (fd.isFloat()) { |
| return new Float(((FloatField)fld).getValue(oop)); |
| } else if (fd.isInt()) { |
| return new Integer(((IntField)fld).getValue(oop)); |
| } else if (fd.isLong()) { |
| return new Long(((LongField)fld).getValue(oop)); |
| } else if (fd.isShort()) { |
| return new Short(((ShortField)fld).getValue(oop)); |
| } else if (fd.isBoolean()) { |
| return Boolean.valueOf(((BooleanField)fld).getValue(oop)); |
| } else { |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(false, "invalid field type for " + name); |
| } |
| return null; |
| } |
| } |
| |
| private Field findInstanceField(String name) { |
| Field fld = (Field) instanceFields.get(name); |
| if (fld != null) { |
| return fld; |
| } else { |
| InstanceKlass current = getInstanceKlass(); |
| while (current != null) { |
| List tmp = current.getImmediateFields(); |
| for (Iterator itr = tmp.iterator(); itr.hasNext();) { |
| fld = (Field) itr.next(); |
| if (fld.getID().getName().equals(name) && !fld.isStatic()) { |
| instanceFields.put(name, fld); |
| return fld; |
| } |
| } |
| // lookup in super class. |
| current = (InstanceKlass) current.getSuper(); |
| } |
| } |
| // no match |
| return null; |
| } |
| |
| private Field findStaticField(String name) { |
| Field fld = (Field) staticFields.get(name); |
| if (fld != null) { |
| return fld; |
| } else { |
| // static fields are searched only in current. |
| // Direct/indirect super classes and interfaces |
| // are not included in search. |
| InstanceKlass current = getInstanceKlass(); |
| List tmp = current.getImmediateFields(); |
| for (Iterator itr = tmp.iterator(); itr.hasNext();) { |
| fld = (Field) itr.next(); |
| if (fld.getID().getName().equals(name) && fld.isStatic()) { |
| staticFields.put(name, fld); |
| return fld; |
| } |
| } |
| // no match |
| return null; |
| } |
| } |
| |
| private JSList getInterfaces() { |
| InstanceKlass ik = getInstanceKlass(); |
| List intfs = ik.getDirectImplementedInterfaces(); |
| List res = new ArrayList(0); |
| for (Iterator itr = intfs.iterator(); itr.hasNext();) { |
| Klass k = (Klass) itr.next(); |
| res.add(k.getJavaMirror()); |
| } |
| return factory.newJSList(res); |
| } |
| |
| private JSMap getStatics() { |
| String[] names = getStaticFieldNames(); |
| Map map = new HashMap(); |
| for (int i=0; i < names.length; i++) { |
| try { |
| map.put(names[i], getStaticFieldValue(names[i])); |
| } catch (NoSuchFieldException exp) {} |
| } |
| return factory.newJSMap(map); |
| } |
| |
| private Map instanceFields; |
| private Map staticFields; |
| private String[] instanceFieldNames; |
| private String[] staticFieldNames; |
| private AccessFlags accFlags; |
| } |