207 lines
7.0 KiB
Java
207 lines
7.0 KiB
Java
/*
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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.util;
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import android.text.TextUtils;
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import com.arialyy.aria.core.download.DownloadEntity;
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import com.arialyy.aria.core.download.DownloadGroupEntity;
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import com.arialyy.aria.core.loader.IRecordHandler;
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import com.arialyy.aria.core.upload.UploadEntity;
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import com.arialyy.aria.orm.DbEntity;
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import java.lang.reflect.Modifier;
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import java.net.HttpURLConnection;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Created by Lyy on 2016/9/23.
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* 检查帮助类
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*/
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public class CheckUtil {
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private static final String TAG = "CheckUtil";
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/**
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* 检查ip是否正确
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*
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* @param ip ipv4 地址
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* @return {@code true} ip 正确，{@code false} ip 错误
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*/
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public static boolean checkIp(String ip) {
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if (TextUtils.isEmpty(ip) || ip.length() < 7 || ip.length() > 15) {
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return false;
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}
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Pattern p = Pattern.compile(Regular.REG_IP_V4);
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Matcher m = p.matcher(ip);
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return m.find() && m.groupCount() > 0;
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}
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/**
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* 判断http请求是否有效
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* {@link HttpURLConnection#HTTP_BAD_GATEWAY} or {@link HttpURLConnection#HTTP_BAD_METHOD}
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* or {@link HttpURLConnection#HTTP_BAD_REQUEST} 无法重试
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*
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* @param errorCode http 返回码
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* @return {@code true} 无效请求；{@code false} 有效请求
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*/
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public static boolean httpIsBadRequest(int errorCode) {
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return errorCode == HttpURLConnection.HTTP_BAD_GATEWAY
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|| errorCode == HttpURLConnection.HTTP_BAD_METHOD
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|| errorCode == HttpURLConnection.HTTP_BAD_REQUEST;
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}
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/**
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* 判断ftp请求是否有效
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*
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* @return {@code true} 无效请求；{@code false} 有效请求
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*/
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public static boolean ftpIsBadRequest(int errorCode) {
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return errorCode >= 400 && errorCode < 600;
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}
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/**
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* 检查和处理下载任务的路径冲突
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*
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* @param isForceDownload true，如果路径冲突，将删除其它任务的记录的
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* @param filePath 文件保存路径
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* @return false 任务不再执行，true 任务继续执行
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*/
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public static boolean checkDPathConflicts(boolean isForceDownload, String filePath) {
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if (DbEntity.checkDataExist(DownloadEntity.class, "downloadPath=?", filePath)) {
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if (!isForceDownload) {
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ALog.e(TAG, String.format("下载失败，保存路径【%s】已经被其它任务占用，请设置其它保存路径", filePath));
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return false;
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} else {
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ALog.w(TAG, String.format("保存路径【%s】已经被其它任务占用，当前任务将覆盖该路径的文件", filePath));
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RecordUtil.delTaskRecord(filePath, IRecordHandler.TYPE_DOWNLOAD);
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return true;
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}
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}
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return true;
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}
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/**
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* 检查和处理上传任务的路径冲突
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*
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* @param isForceUpload true，如果路径冲突，将删除其它任务的记录的
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* @param filePath 文件保存路径
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* @return false 任务不再执行，true 任务继续执行
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*/
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public static boolean checkUPathConflicts(boolean isForceUpload, String filePath) {
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if (DbEntity.checkDataExist(UploadEntity.class, "filePath=?", filePath)) {
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if (!isForceUpload) {
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ALog.e(TAG, String.format("上传失败，文件路径【%s】已经被其它任务占用，请设置其它文件路径", filePath));
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return false;
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} else {
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ALog.w(TAG, String.format("文件路径【%s】已经被其它任务占用，当前任务将覆盖该路径的文件", filePath));
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RecordUtil.delTaskRecord(filePath, IRecordHandler.TYPE_UPLOAD);
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return true;
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}
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}
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return true;
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}
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/**
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* 检查和处理组合任务的路径冲突
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*
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* @param isForceDownload true，如果路径冲突，将删除其它任务的记录的
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* @param dirPath 文件保存路径
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* @return false 任务不再执行，true 任务继续执行
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*/
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public static boolean checkDGPathConflicts(boolean isForceDownload, String dirPath) {
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if (DbEntity.checkDataExist(DownloadGroupEntity.class, "dirPath=?", dirPath)) {
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if (!isForceDownload) {
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ALog.e(TAG, String.format("下载失败，文件夹路径【%s】已经被其它任务占用，请设置其它文件路径", dirPath));
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return false;
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} else {
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ALog.w(TAG, String.format("文件夹路径【%s】已经被其它任务占用，当前任务将覆盖该路径", dirPath));
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RecordUtil.delGroupTaskRecordByPath(dirPath, false);
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return true;
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}
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}
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return true;
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}
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/**
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* 检查成员类是否是静态和public
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*/
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public static void checkMemberClass(Class clazz) {
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int modifiers = clazz.getModifiers();
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//ALog.d(TAG, "isMemberClass = "
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// + clazz.isMemberClass()
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// + "; isStatic = "
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// + Modifier.isStatic(modifiers)
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// + "; isPrivate = "
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// + Modifier.isPrivate(modifiers));
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if (!clazz.isMemberClass() || !Modifier.isStatic(modifiers)) {
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ALog.e(TAG, String.format("为了防止内存泄漏，请使用静态的成员类(public static class %s)或文件类(%s.java)",
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clazz.getSimpleName(), clazz.getSimpleName()));
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}
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}
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/**
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* 检查分页数据，需要查询的页数，从1开始，如果page小于1 或 num 小于1，则抛出{@link NullPointerException}
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*
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* @param page 从1 开始
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* @param num 每页数量
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*/
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public static void checkPageParams(int page, int num) {
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if (page < 1 || num < 1) throw new NullPointerException("page和num不能小于1");
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}
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/**
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* 检测url是否合法
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*
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* @return {@code true} 合法，{@code false} 非法
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*/
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public static boolean checkUrl(String url) {
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if (TextUtils.isEmpty(url)) {
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ALog.e(TAG, "url不能为null");
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return false;
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} else if (!url.startsWith("http") && !url.startsWith("ftp") && !url.startsWith("sftp")) {
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ALog.e(TAG, "url【" + url + "】错误");
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return false;
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}
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int index = url.indexOf("://");
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if (index == -1) {
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ALog.e(TAG, "url【" + url + "】不合法");
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}
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return true;
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}
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/**
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* 检测下载链接组是否为null
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*
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* @return true 组合任务url为空
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*/
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public static boolean checkDownloadUrlsIsEmpty(List<String> urls) {
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if (urls == null || urls.isEmpty()) {
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ALog.e(TAG, "链接组不能为null");
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return true;
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}
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return false;
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}
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/**
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* 检测上传地址是否为null
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*/
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public static void checkUploadPathIsEmpty(String uploadPath) {
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if (TextUtils.isEmpty(uploadPath)) {
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throw new IllegalArgumentException("上传地址不能为null");
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}
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}
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} |