1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.ahat.heapdump; 18 19 import java.util.AbstractList; 20 import java.util.ArrayList; 21 import java.util.List; 22 23 class SuperRoot extends AhatInstance { 24 private List<AhatInstance> mRoots = new ArrayList<AhatInstance>(); 25 private Object mDominatorsComputationState; 26 SuperRoot()27 SuperRoot() { 28 super(0); 29 } 30 addRoot(AhatInstance root)31 void addRoot(AhatInstance root) { 32 mRoots.add(root); 33 } 34 35 @Override getExtraJavaSize()36 long getExtraJavaSize() { 37 return 0; 38 } 39 40 @Override toString()41 public String toString() { 42 return "SUPER_ROOT"; 43 } 44 45 @Override getReferences()46 Iterable<Reference> getReferences() { 47 return new AbstractList<Reference>() { 48 @Override 49 public int size() { 50 return mRoots.size(); 51 } 52 53 @Override 54 public Reference get(int index) { 55 String field = ".roots[" + Integer.toString(index) + "]"; 56 return new Reference(SuperRoot.this, field, mRoots.get(index), Reachability.STRONG); 57 } 58 }; 59 } 60 } 61