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/*
* Copyright (C) 2021 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 com.android.internal.widget;
import android.util.Log;
import android.util.Pools;
import android.view.View;
/**
* A trivial wrapper around Pools.SynchronizedPool which allows clearing the pool, as well as
* disabling the pool class altogether.
* @param <T> the type of object in the pool
*/
public class MessagingPool<T extends View> implements Pools.Pool<T> {
private static final boolean ENABLED = false; // disabled to test b/208508846
private static final String TAG = "MessagingPool";
private final int mMaxPoolSize;
private Pools.SynchronizedPool<T> mCurrentPool;
public MessagingPool(int maxPoolSize) {
mMaxPoolSize = maxPoolSize;
if (ENABLED) {
mCurrentPool = new Pools.SynchronizedPool<>(mMaxPoolSize);
}
}
@Override
public T acquire() {
if (!ENABLED) {
return null;
}
T instance = mCurrentPool.acquire();
if (instance.getParent() != null) {
Log.wtf(TAG, "acquired " + instance + " with parent " + instance.getParent());
return null;
}
return instance;
}
@Override
public boolean release(T instance) {
if (instance.getParent() != null) {
Log.wtf(TAG, "releasing " + instance + " with parent " + instance.getParent());
return false;
}
if (!ENABLED) {
return false;
}
return mCurrentPool.release(instance);
}
/** Clear the pool */
public void clear() {
if (ENABLED) {
mCurrentPool = new Pools.SynchronizedPool<>(mMaxPoolSize);
}
}
}
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