/*
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tools.perflib.heap;
import com.android.annotations.NonNull;
import com.android.annotations.Nullable;
import com.android.annotations.VisibleForTesting;
import java.util.ArrayList;
import java.util.List;
public class ClassInstance extends Instance {
private final long mValuesOffset;
public ClassInstance(long id, @NonNull StackTrace stack, long valuesOffset) {
super(id, stack);
mValuesOffset = valuesOffset;
}
@VisibleForTesting
@NonNull
List<FieldValue> getFields(String name) {
ArrayList<FieldValue> result = new ArrayList<FieldValue>();
for (FieldValue value : getValues()) {
if (value.getField().getName().equals(name)) {
result.add(value);
}
}
return result;
}
@NonNull
public List<FieldValue> getValues() {
ArrayList<FieldValue> result = new ArrayList<FieldValue>();
ClassObj clazz = getClassObj();
getBuffer().setPosition(mValuesOffset);
while (clazz != null) {
for (Field field : clazz.getFields()) {
result.add(new FieldValue(field, readValue(field.getType())));
}
clazz = clazz.getSuperClassObj();
}
return result;
}
@Override
public final void accept(@NonNull Visitor visitor) {
visitor.visitClassInstance(this);
for (FieldValue field : getValues()) {
if (field.getValue() instanceof Instance) {
if (!mReferencesAdded) {
((Instance) field.getValue()).addReference(field.getField(), this);
}
visitor.visitLater(this, (Instance) field.getValue());
}
}
mReferencesAdded = true;
}
@Override
public boolean getIsSoftReference() {
return getClassObj().getIsSoftReference();
}
public final String toString() {
return String.format("%s@%d (0x%x)", getClassObj().getClassName(), getUniqueId(), getUniqueId());
}
public static class FieldValue {
private Field mField;
private Object mValue;
public FieldValue(@NonNull Field field, @Nullable Object value) {
this.mField = field;
this.mValue = value;
}
public Field getField() {
return mField;
}
public Object getValue() {
return mValue;
}
}
}