laoyuyu
5 years ago
commit
a1c294bcbd
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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.loader; |
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import android.os.Bundle; |
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import android.os.Handler; |
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import android.os.Looper; |
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import android.os.Message; |
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import com.arialyy.aria.core.TaskRecord; |
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import com.arialyy.aria.core.inf.IThreadStateManager; |
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import com.arialyy.aria.util.ALog; |
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import com.arialyy.aria.util.CommonUtil; |
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import com.arialyy.aria.util.FileUtil; |
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import java.io.File; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.concurrent.atomic.AtomicInteger; |
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/** |
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* 线程任务管理器，用于处理多线程下载时任务的状态回调 |
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*/ |
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public class GroupSubThreadStateManager implements IThreadStateManager { |
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private final String TAG = CommonUtil.getClassName(this); |
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/** |
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* 任务状态回调 |
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*/ |
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private Handler mHandler;//SimpleSchedulers
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private int mThreadNum; // 启动的线程总数
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private AtomicInteger mCancelNum = new AtomicInteger(0); // 已经取消的线程的数
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private AtomicInteger mStopNum = new AtomicInteger(0); // 已经停止的线程数
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private AtomicInteger mFailNum = new AtomicInteger(0); // 失败的线程数
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private AtomicInteger mCompleteNum = new AtomicInteger(0); // 完成的线程数
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private long mProgress; //当前总进度
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private TaskRecord mTaskRecord; // 任务记录
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private Looper mLooper; |
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private String mKey; |
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/** |
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* @param handler 任务事件 |
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*/ |
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public GroupSubThreadStateManager(Handler handler, String key) { |
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mHandler = handler; |
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mKey = key; |
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} |
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@Override public void setLooper(TaskRecord taskRecord, Looper looper) { |
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mTaskRecord = taskRecord; |
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mThreadNum = mTaskRecord.threadNum; |
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mLooper = looper; |
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} |
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private void checkLooper() { |
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if (mTaskRecord == null) { |
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throw new NullPointerException("任务记录为空"); |
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} |
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if (mLooper == null) { |
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throw new NullPointerException("Looper为空"); |
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} |
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} |
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private Handler.Callback callback = new Handler.Callback() { |
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@Override public boolean handleMessage(Message msg) { |
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checkLooper(); |
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switch (msg.what) { |
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case STATE_STOP: |
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mStopNum.getAndIncrement(); |
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if (isStop()) { |
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quitLooper(); |
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} |
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sendMessageFromMsg(msg); |
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break; |
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case STATE_CANCEL: |
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mCancelNum.getAndIncrement(); |
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if (isCancel()) { |
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quitLooper(); |
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} |
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sendMessageFromMsg(msg); |
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break; |
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case STATE_FAIL: |
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mFailNum.getAndIncrement(); |
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if (isFail()) { |
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sendMessageFromMsg(msg); |
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/* Bundle b = msg.getData(); |
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mListener.onFail(b.getBoolean(DATA_RETRY, false), |
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(AriaException) b.getSerializable(DATA_ERROR_INFO));*/ |
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quitLooper(); |
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} |
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sendMessageFromMsg(msg); |
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break; |
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case STATE_COMPLETE: |
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mCompleteNum.getAndIncrement(); |
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if (isComplete()) { |
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ALog.d(TAG, "isComplete, completeNum = " + mCompleteNum); |
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//if (mTaskRecord.taskType == ITaskWrapper.D_SFTP) {
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// mergerSFtp();
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// mListener.onComplete();
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//} else
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if (mTaskRecord.isBlock) { |
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/*if (mergeFile()) { |
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mListener.onComplete(); |
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} else { |
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mListener.onFail(false, null); |
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}*/ |
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if (!mergeFile()) { |
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Bundle b=msg.getData(); |
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b.putBoolean(IThreadStateManager.DATA_RETRY, false); |
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msg.setData(b); |
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msg.what = STATE_FAIL; |
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sendMessageFromMsg(msg); |
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} |
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sendMessageFromMsg(msg); |
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} else { |
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sendMessageFromMsg(msg); |
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//mListener.onComplete();
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} |
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quitLooper(); |
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} |
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break; |
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case STATE_RUNNING: |
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Bundle b = msg.getData(); |
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if (b != null) { |
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long len = b.getLong(IThreadStateManager.DATA_ADD_LEN, 0); |
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mProgress += len; |
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} |
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msg.obj=mProgress; |
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sendMessageFromMsg(msg); |
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break; |
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case STATE_UPDATE_PROGRESS: |
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if (msg.obj == null) { |
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mProgress = updateBlockProgress(); |
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} else if (msg.obj instanceof Long) { |
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mProgress = (long) msg.obj; |
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} |
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msg.obj=mProgress; |
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sendMessageFromMsg(msg); |
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break; |
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} |
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return false; |
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} |
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public void sendMessageFromMsg(Message msg){ |
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Message mMsg=mHandler.obtainMessage(); |
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Bundle b=mMsg.getData(); |
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b.putString(IThreadStateManager.DATA_THREAD_NAME,mKey); |
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msg.setData(b); |
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mMsg.copyFrom(msg); |
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mHandler.sendMessage(mMsg); |
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} |
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}; |
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@Override public void updateCurrentProgress(long currentProgress) { |
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mProgress = currentProgress; |
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} |
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/** |
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* 退出looper循环 |
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*/ |
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private void quitLooper() { |
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mLooper.quit(); |
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} |
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/** |
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* 获取当前任务下载进度 |
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* |
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* @return 当前任务下载进度 |
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*/ |
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@Override |
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public long getCurrentProgress() { |
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return mProgress; |
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} |
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@Override public Handler.Callback getHandlerCallback() { |
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return callback; |
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} |
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/** |
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* 所有子线程是否都已经停止 |
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*/ |
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public boolean isStop() { |
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//ALog.d(TAG,
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// String.format("isStop; stopNum: %s, cancelNum: %s, failNum: %s, completeNum: %s", mStopNum,
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// mCancelNum, mFailNum, mCompleteNum));
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return mStopNum.get() == mThreadNum || mStopNum.get() + mCompleteNum.get() == mThreadNum; |
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} |
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/** |
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* 所有子线程是否都已经失败 |
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*/ |
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@Override |
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public boolean isFail() { |
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//ALog.d(TAG,
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// String.format("isFail; stopNum: %s, cancelNum: %s, failNum: %s, completeNum: %s", mStopNum,
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// mCancelNum, mFailNum, mCompleteNum));
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return mCompleteNum.get() != mThreadNum |
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&& (mFailNum.get() == mThreadNum || mFailNum.get() + mCompleteNum.get() == mThreadNum); |
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} |
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/** |
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* 所有子线程是否都已经完成 |
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*/ |
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@Override |
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public boolean isComplete() { |
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//ALog.d(TAG,
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// String.format("isComplete; stopNum: %s, cancelNum: %s, failNum: %s, completeNum: %s",
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// mStopNum,
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// mCancelNum, mFailNum, mCompleteNum));
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return mCompleteNum.get() == mThreadNum; |
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} |
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/** |
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* 所有子线程是否都已经取消 |
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*/ |
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public boolean isCancel() { |
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//ALog.d(TAG, String.format("isCancel; stopNum: %s, cancelNum: %s, failNum: %s, completeNum: %s",
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// mStopNum,
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// mCancelNum, mFailNum, mCompleteNum));
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return mCancelNum.get() == mThreadNum; |
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} |
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/** |
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* 更新分块任务s的真实进度 |
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*/ |
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private long updateBlockProgress() { |
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long size = 0; |
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for (int i = 0, len = mTaskRecord.threadRecords.size(); i < len; i++) { |
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File temp = new File(String.format(IRecordHandler.SUB_PATH, mTaskRecord.filePath, i)); |
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if (temp.exists()) { |
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size += temp.length(); |
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} |
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} |
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return size; |
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} |
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/** |
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* 合并sftp的分块 |
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*/ |
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private boolean mergerSFtp() { |
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if (mTaskRecord.threadNum == 1) { |
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File partFile = new File(String.format(IRecordHandler.SUB_PATH, mTaskRecord.filePath, 0)); |
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return partFile.renameTo(new File(mTaskRecord.filePath)); |
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} |
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List<String> partPath = new ArrayList<>(); |
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for (int i = 0, len = mTaskRecord.threadNum; i < len; i++) { |
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partPath.add(String.format(IRecordHandler.SUB_PATH, mTaskRecord.filePath, i)); |
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} |
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FileUtil.mergeSFtpFile(mTaskRecord.filePath, partPath, mTaskRecord.fileLength); |
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for (String pp : partPath) { |
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FileUtil.deleteFile(pp); |
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} |
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return true; |
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} |
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/** |
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* 合并文件 |
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* |
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* @return {@code true} 合并成功，{@code false}合并失败 |
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*/ |
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private boolean mergeFile() { |
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if (mTaskRecord.threadNum == 1) { |
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File partFile = new File(String.format(IRecordHandler.SUB_PATH, mTaskRecord.filePath, 0)); |
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return partFile.renameTo(new File(mTaskRecord.filePath)); |
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} |
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List<String> partPath = new ArrayList<>(); |
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for (int i = 0, len = mTaskRecord.threadNum; i < len; i++) { |
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partPath.add(String.format(IRecordHandler.SUB_PATH, mTaskRecord.filePath, i)); |
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} |
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boolean isSuccess = FileUtil.mergeFile(mTaskRecord.filePath, partPath); |
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if (isSuccess) { |
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for (String pp : partPath) { |
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FileUtil.deleteFile(pp); |
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} |
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File targetFile = new File(mTaskRecord.filePath); |
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if (targetFile.exists() && targetFile.length() > mTaskRecord.fileLength) { |
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ALog.e(TAG, String.format("任务【%s】分块文件合并失败，下载长度超出文件真实长度，downloadLen: %s，fileSize: %s", |
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targetFile.getName(), targetFile.length(), mTaskRecord.fileLength)); |
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return false; |
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} |
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return true; |
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} else { |
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ALog.e(TAG, "合并失败"); |
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return false; |
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} |
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} |
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@Override public void accept(ILoaderVisitor visitor) { |
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visitor.addComponent(this); |
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} |
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} |
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