1 /* 2 * Copyright (C) 2010 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.videoeditor.service; 18 19 import java.util.ArrayList; 20 import java.util.List; 21 22 import android.content.ComponentName; 23 import android.content.Context; 24 import android.content.Intent; 25 import android.os.Bundle; 26 import android.util.Log; 27 28 /** 29 * A pool of Intents 30 */ 31 class IntentPool { 32 // Logging 33 private static final String TAG = "IntentPool"; 34 35 // Instance variables 36 private final List<Intent> mIntentPool; 37 38 /** 39 * Constructor 40 * 41 * @param initialSize The initial size of the pool 42 */ 43 public IntentPool(int initialSize) { 44 mIntentPool = new ArrayList<Intent>(initialSize); 45 } 46 47 /** 48 * @return The Intent is retrieved from the pool or if the pool is empty 49 * a new Intent is allocated 50 */ 51 public synchronized Intent get(Context context, Class<?> cls) { 52 final Intent intent = get(); 53 intent.setComponent(new ComponentName(context, cls)); 54 return intent; 55 } 56 57 /** 58 * @return The Intent is retrieved from the pool or if the pool is empty 59 * a new Intent is allocated 60 */ 61 public synchronized Intent get() { 62 if (mIntentPool.size() > 0) { 63 final Intent intent = mIntentPool.remove(0); 64 // Clear the content of the Intent 65 final Bundle extras = intent.getExtras(); 66 for (String keys : extras.keySet()) { 67 intent.removeExtra(keys); 68 } 69 intent.setComponent(null); 70 return intent; 71 } else { 72 if (Log.isLoggable(TAG, Log.DEBUG)) { 73 Log.d(TAG, "Pool enlarged"); 74 } 75 return new Intent(); 76 } 77 } 78 79 /** 80 * @param intent Return an Intent to the pool 81 */ 82 public synchronized void put(Intent intent) { 83 mIntentPool.add(intent); 84 } 85 } 86
