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.systemui.shared.recents.model; 18 19 import android.util.ArrayMap; 20 21 import com.android.systemui.shared.recents.model.Task.TaskKey; 22 23 import java.io.PrintWriter; 24 25 /** 26 * Like {@link TaskKeyLruCache}, but without LRU functionality. 27 */ 28 public class TaskKeyStrongCache<V> extends TaskKeyCache<V> { 29 30 private static final String TAG = "TaskKeyCache"; 31 32 private final ArrayMap<Integer, V> mCache = new ArrayMap<>(); 33 34 final void copyEntries(TaskKeyStrongCache<V> other) { 35 for (int i = other.mKeys.size() - 1; i >= 0; i--) { 36 TaskKey key = other.mKeys.valueAt(i); 37 put(key, other.mCache.get(key.id)); 38 } 39 } 40 41 public void dump(String prefix, PrintWriter writer) { 42 String innerPrefix = prefix + " "; 43 writer.print(prefix); writer.print(TAG); 44 writer.print(" numEntries="); writer.print(mKeys.size()); 45 writer.println(); 46 int keyCount = mKeys.size(); 47 for (int i = 0; i < keyCount; i++) { 48 writer.print(innerPrefix); writer.println(mKeys.get(mKeys.keyAt(i))); 49 } 50 } 51 52 @Override 53 protected V getCacheEntry(int id) { 54 return mCache.get(id); 55 } 56 57 @Override 58 protected void putCacheEntry(int id, V value) { 59 mCache.put(id, value); 60 } 61 62 @Override 63 protected void removeCacheEntry(int id) { 64 mCache.remove(id); 65 } 66 67 @Override 68 protected void evictAllCache() { 69 mCache.clear(); 70 } 71 } 72
