From e612775922ec9f8cc4e5cb976bc62b3312a3de0e Mon Sep 17 00:00:00 2001 From: Hyunyoung Song Date: Tue, 21 Jul 2015 17:01:26 -0700 Subject: resolved conflicts for merge of 13ef17a3 to mnc-dr-dev b/22609402 Change-Id: I140cf972d57e14737a6f91c0b4a8ec6c7ff1af2b --- WallpaperPicker/src/android/util/Pools.java | 165 ---------------------------- 1 file changed, 165 deletions(-) delete mode 100644 WallpaperPicker/src/android/util/Pools.java (limited to 'WallpaperPicker/src/android/util') diff --git a/WallpaperPicker/src/android/util/Pools.java b/WallpaperPicker/src/android/util/Pools.java deleted file mode 100644 index 40bab1eae..000000000 --- a/WallpaperPicker/src/android/util/Pools.java +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package android.util; - -/** - * Helper class for crating pools of objects. An example use looks like this: - *
- * public class MyPooledClass {
- *
- *     private static final SynchronizedPool sPool =
- *             new SynchronizedPool(10);
- *
- *     public static MyPooledClass obtain() {
- *         MyPooledClass instance = sPool.acquire();
- *         return (instance != null) ? instance : new MyPooledClass();
- *     }
- *
- *     public void recycle() {
- *          // Clear state if needed.
- *          sPool.release(this);
- *     }
- *
- *     . . .
- * }
- * 
- * - * @hide - */ -public final class Pools { - - /** - * Interface for managing a pool of objects. - * - * @param The pooled type. - */ - public static interface Pool { - - /** - * @return An instance from the pool if such, null otherwise. - */ - public T acquire(); - - /** - * Release an instance to the pool. - * - * @param instance The instance to release. - * @return Whether the instance was put in the pool. - * - * @throws IllegalStateException If the instance is already in the pool. - */ - public boolean release(T instance); - } - - private Pools() { - /* do nothing - hiding constructor */ - } - - /** - * Simple (non-synchronized) pool of objects. - * - * @param The pooled type. - */ - public static class SimplePool implements Pool { - private final Object[] mPool; - - private int mPoolSize; - - /** - * Creates a new instance. - * - * @param maxPoolSize The max pool size. - * - * @throws IllegalArgumentException If the max pool size is less than zero. - */ - public SimplePool(int maxPoolSize) { - if (maxPoolSize <= 0) { - throw new IllegalArgumentException("The max pool size must be > 0"); - } - mPool = new Object[maxPoolSize]; - } - - @Override - @SuppressWarnings("unchecked") - public T acquire() { - if (mPoolSize > 0) { - final int lastPooledIndex = mPoolSize - 1; - T instance = (T) mPool[lastPooledIndex]; - mPool[lastPooledIndex] = null; - mPoolSize--; - return instance; - } - return null; - } - - @Override - public boolean release(T instance) { - if (isInPool(instance)) { - throw new IllegalStateException("Already in the pool!"); - } - if (mPoolSize < mPool.length) { - mPool[mPoolSize] = instance; - mPoolSize++; - return true; - } - return false; - } - - private boolean isInPool(T instance) { - for (int i = 0; i < mPoolSize; i++) { - if (mPool[i] == instance) { - return true; - } - } - return false; - } - } - - /** - * Synchronized) pool of objects. - * - * @param The pooled type. - */ - public static class SynchronizedPool extends SimplePool { - private final Object mLock = new Object(); - - /** - * Creates a new instance. - * - * @param maxPoolSize The max pool size. - * - * @throws IllegalArgumentException If the max pool size is less than zero. - */ - public SynchronizedPool(int maxPoolSize) { - super(maxPoolSize); - } - - @Override - public T acquire() { - synchronized (mLock) { - return super.acquire(); - } - } - - @Override - public boolean release(T element) { - synchronized (mLock) { - return super.release(element); - } - } - } -} \ No newline at end of file -- cgit v1.2.3