laoyuyu
7 years ago
parent
cf65959bf9
commit
9cad84127d
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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.inf; |
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import android.support.annotation.StringDef; |
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import java.lang.annotation.Retention; |
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import java.lang.annotation.RetentionPolicy; |
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/** |
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* {@link AbsReceiver}类型 |
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*/ |
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@StringDef({ |
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ReceiverType.DOWNLOAD, |
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ReceiverType.UPLOAD, |
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}) |
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@Retention(RetentionPolicy.SOURCE) |
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public @interface ReceiverType { |
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String DOWNLOAD = "download"; |
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String UPLOAD = "upload"; |
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} |
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@ -0,0 +1,148 @@ |
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one |
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* or more contributor license agreements. See the NOTICE file |
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* distributed with this work for additional information |
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* regarding copyright ownership. The ASF licenses this file |
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* to you under the Apache License, Version 2.0 (the |
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* "License"); you may not use this file except in compliance |
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* with the License. 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.util; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.SequenceInputStream; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.Channels; |
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import java.nio.channels.FileChannel; |
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import java.nio.channels.ReadableByteChannel; |
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import java.util.Collections; |
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import java.util.Enumeration; |
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import java.util.LinkedList; |
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import java.util.List; |
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/** |
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* 文件操作工具类 |
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*/ |
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public class FileUtil { |
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private static final String TAG = "FileUtil"; |
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/** |
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* 合并文件 |
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* |
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* @param targetPath 目标文件 |
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* @param subPaths 碎片文件路径 |
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*/ |
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public static void mergeFile(String targetPath, List<String> subPaths) { |
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File file = new File(targetPath); |
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FileOutputStream fos = null; |
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FileChannel foc = null; |
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try { |
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if (!file.exists()) { |
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file.createNewFile(); |
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fos = new FileOutputStream(targetPath); |
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foc = fos.getChannel(); |
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List<FileInputStream> streams = new LinkedList<>(); |
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for (String subPath : subPaths) { |
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File f = new File(subPath); |
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if (!f.exists()) { |
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ALog.d(TAG, String.format("合并文件失败，文件【%s】不存在", subPath)); |
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for (FileInputStream fis : streams) { |
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fis.close(); |
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} |
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streams.clear(); |
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return; |
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} |
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streams.add(new FileInputStream(subPath)); |
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} |
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Enumeration<FileInputStream> en = Collections.enumeration(streams); |
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SequenceInputStream sis = new SequenceInputStream(en); |
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ReadableByteChannel fic = Channels.newChannel(sis); |
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ByteBuffer bf = ByteBuffer.allocate(8196); |
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while (fic.read(bf) != -1) { |
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bf.flip(); |
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foc.write(bf); |
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bf.compact(); |
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} |
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fic.close(); |
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sis.close(); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} finally { |
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try { |
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if (foc != null) { |
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foc.close(); |
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} |
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if (fos != null) { |
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fos.close(); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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/** |
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* 分割文件 |
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* |
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* @param filePath 被分割的文件路径 |
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* @param num 分割的块数 |
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*/ |
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public static void splitFile(String filePath, int num) { |
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try { |
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final File file = new File(filePath); |
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long size = file.length(); |
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FileInputStream fis = new FileInputStream(file); |
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FileChannel fic = fis.getChannel(); |
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long j = 0; |
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long block = size / num; |
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for (int i = 0; i < num; i++) { |
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if (i == num - 1) { |
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block = size - block * (num - 1); |
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} |
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String subPath = file.getPath() + "." + i + ".part"; |
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ALog.d(TAG, String.format("block = %s", block)); |
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File subFile = new File(subPath); |
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if (!subFile.exists()) { |
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subFile.createNewFile(); |
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} |
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FileOutputStream fos = new FileOutputStream(subFile); |
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FileChannel sfoc = fos.getChannel(); |
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ByteBuffer bf = ByteBuffer.allocate(8196); |
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int len; |
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//fis.skip(block * i);
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while ((len = fic.read(bf)) != -1) { |
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bf.flip(); |
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sfoc.write(bf); |
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bf.compact(); |
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j += len; |
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if (j >= block * (i + 1)) { |
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break; |
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} |
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} |
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ALog.d(TAG, String.format("len = %s", subFile.length())); |
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fos.close(); |
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sfoc.close(); |
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} |
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fis.close(); |
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fic.close(); |
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} catch (FileNotFoundException e) { |
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e.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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