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.AhatSnapshot; 20 import com.android.tools.perflib.heap.ProguardMap; 21 import com.android.tools.perflib.heap.hprof.Hprof; 22 import com.android.tools.perflib.heap.hprof.HprofRecord; 23 import com.android.tools.perflib.heap.hprof.HprofStringBuilder; 24 import com.android.tools.perflib.heap.io.InMemoryBuffer; 25 import java.io.ByteArrayOutputStream; 26 import java.io.IOException; 27 import java.util.ArrayList; 28 import java.util.Date; 29 import java.util.List; 30 31 /** 32 * Class with utilities to help constructing snapshots for tests. 33 */ 34 public class SnapshotBuilder { 35 36 // Helper function to make a snapshot with id size 4 given an 37 // HprofStringBuilder and list of HprofRecords 38 public static AhatSnapshot makeSnapshot(HprofStringBuilder strings, List<HprofRecord> records) 39 throws IOException { 40 // TODO: When perflib can handle the case where strings are referred to 41 // before they are defined, just add the string records to the records 42 // list. 43 List<HprofRecord> actualRecords = new ArrayList<HprofRecord>(); 44 actualRecords.addAll(strings.getStringRecords()); 45 actualRecords.addAll(records); 46 47 Hprof hprof = new Hprof("JAVA PROFILE 1.0.3", 4, new Date(), actualRecords); 48 ByteArrayOutputStream os = new ByteArrayOutputStream(); 49 hprof.write(os); 50 InMemoryBuffer buffer = new InMemoryBuffer(os.toByteArray()); 51 return AhatSnapshot.fromDataBuffer(buffer, new ProguardMap()); 52 } 53 } 54
