pull/330/head
AriaLyy
7 years ago
parent
582f4e96f0
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ce36165e1d
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/* |
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* Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.arialyy.aria.core; |
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import android.util.Log; |
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import com.arialyy.aria.core.inf.AbsTask; |
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import com.arialyy.aria.util.CommonUtil; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.concurrent.ConcurrentHashMap; |
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/** |
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* Created by Aria.Lao on 2017/9/1. |
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* 任务管理器 |
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*/ |
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public class TaskManager { |
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private static final String TAG = "TaskManager"; |
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private static volatile TaskManager INSTANCE = null; |
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private Map<String, AbsTask> map = new ConcurrentHashMap<>(); |
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public TaskManager getInstance() { |
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if (INSTANCE == null) { |
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synchronized (AriaManager.LOCK) { |
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INSTANCE = new TaskManager(); |
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} |
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} |
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return INSTANCE; |
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} |
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private TaskManager() { |
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} |
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/** |
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* 管理器添加任务 |
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* |
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* @param key 任务的key，下载为保存路径，任务组为任务组名，上传为文件上传路径 |
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* @param task 任务 |
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* @return {@code true}添加成功 |
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*/ |
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public boolean addTask(String key, AbsTask task) { |
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String hash = CommonUtil.keyToHashKey(key); |
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if (map.keySet().contains(hash)) { |
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Log.e(TAG, "任务【" + key + "】已存在"); |
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return false; |
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} |
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map.put(CommonUtil.keyToHashKey(key), task); |
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return true; |
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} |
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/** |
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* 移除任务 |
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* |
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* @param key 任务的key，下载为保存路径，任务组为任务组名，上传为文件上传路径 |
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*/ |
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public void removeTask(String key) { |
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String hash = CommonUtil.keyToHashKey(key); |
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for (Iterator<Map.Entry<String, AbsTask>> iter = map.entrySet().iterator(); iter.hasNext(); ) { |
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Map.Entry<String, AbsTask> entry = iter.next(); |
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if (entry.getKey().equals(hash)) iter.remove(); |
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} |
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} |
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/** |
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* 通过key获取任务 |
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* |
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* @return 入梅找不到任务，返回null，否则返回key对应的任务 |
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*/ |
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public AbsTask getTask(String key) { |
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return map.get(CommonUtil.keyToHashKey(key)); |
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} |
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} |
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