1 /* 2 * Copyright (C) 2015 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; 18 19 import com.android.ahat.heapdump.AhatHeap; 20 import com.android.ahat.heapdump.AhatInstance; 21 import com.android.ahat.heapdump.AhatSnapshot; 22 import com.android.ahat.heapdump.Sort; 23 import java.util.ArrayList; 24 import java.util.Collection; 25 import java.util.Collections; 26 import java.util.List; 27 28 /** 29 * Class for rendering a list of instances dominated by a single instance in a 30 * pretty way. 31 */ 32 class DominatedList { 33 /** 34 * Render a table to the given HtmlWriter showing a pretty list of 35 * instances. 36 * 37 * @param snapshot the snapshot where the instances reside 38 * @param doc the document to render the dominated list to 39 * @param query the current page query 40 * @param id a unique identifier to use for the dominated list in the current page 41 * @param instances the collection of instances to generate a list for 42 */ 43 public static void render(final AhatSnapshot snapshot, 44 Doc doc, Query query, String id, Collection<AhatInstance> instances) { 45 List<AhatInstance> insts = new ArrayList<AhatInstance>(instances); 46 Collections.sort(insts, Sort.defaultInstanceCompare(snapshot)); 47 HeapTable.render(doc, query, id, new TableConfig(), snapshot, insts); 48 } 49 50 private static class TableConfig implements HeapTable.TableConfig<AhatInstance> { 51 @Override 52 public String getHeapsDescription() { 53 return "Bytes Retained by Heap"; 54 } 55 56 @Override 57 public long getSize(AhatInstance element, AhatHeap heap) { 58 return element.getRetainedSize(heap).getSize(); 59 } 60 61 @Override 62 public List<HeapTable.ValueConfig<AhatInstance>> getValueConfigs() { 63 HeapTable.ValueConfig<AhatInstance> value = new HeapTable.ValueConfig<AhatInstance>() { 64 public String getDescription() { 65 return "Object"; 66 } 67 68 public DocString render(AhatInstance element) { 69 return Summarizer.summarize(element); 70 } 71 }; 72 return Collections.singletonList(value); 73 } 74 } 75 } 76
