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.recents.model; 18 19 import android.util.ArrayMap; 20 import android.util.Log; 21 import android.util.SparseArray; 22 23 import com.android.systemui.recents.model.Task.TaskKey; 24 25 import java.io.PrintWriter; 26 27 /** 28 * Like {@link TaskKeyLruCache}, but without LRU functionality. 29 */ 30 public class TaskKeyStrongCache<V> extends TaskKeyCache<V> { 31 32 private static final String TAG = "TaskKeyCache"; 33 34 private final ArrayMap<Integer, V> mCache = new ArrayMap<>(); 35 36 final void copyEntries(TaskKeyStrongCache<V> other) { 37 for (int i = other.mKeys.size() - 1; i >= 0; i--) { 38 TaskKey key = other.mKeys.valueAt(i); 39 put(key, other.mCache.get(key.id)); 40 } 41 } 42 43 public void dump(String prefix, PrintWriter writer) { 44 String innerPrefix = prefix + " "; 45 writer.print(prefix); writer.print(TAG); 46 writer.print(" numEntries="); writer.print(mKeys.size()); 47 writer.println(); 48 int keyCount = mKeys.size(); 49 for (int i = 0; i < keyCount; i++) { 50 writer.print(innerPrefix); writer.println(mKeys.get(mKeys.keyAt(i))); 51 } 52 } 53 54 @Override 55 protected V getCacheEntry(int id) { 56 return mCache.get(id); 57 } 58 59 @Override 60 protected void putCacheEntry(int id, V value) { 61 mCache.put(id, value); 62 } 63 64 @Override 65 protected void removeCacheEntry(int id) { 66 mCache.remove(id); 67 } 68 69 @Override 70 protected void evictAllCache() { 71 mCache.clear(); 72 } 73 } 74
