/* * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.arialyy.aria.util; import android.text.TextUtils; import com.arialyy.aria.core.download.DTaskWrapper; import com.arialyy.aria.core.download.DownloadEntity; import com.arialyy.aria.core.inf.AbsTaskWrapper; import com.arialyy.aria.core.upload.UTaskWrapper; import com.arialyy.aria.core.upload.UploadEntity; import com.arialyy.aria.exception.ParamException; import java.io.File; import java.util.Arrays; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * Created by Lyy on 2016/9/23. * 检查帮助类 */ public class CheckUtil { private static final String TAG = "CheckUtil"; /** * 检查ftp上传路径,如果ftp上传路径为空,抛出空指针异常 * 如果ftp上传路径不是以"ftp"或"sftp",抛出参数异常 * * @param ftpUrl ftp上传路径 */ public static void checkFtpUploadUrl(String ftpUrl) { if (TextUtils.isEmpty(ftpUrl)) { throw new ParamException("ftp上传路径为空"); } else if (!ftpUrl.startsWith("ftp") || !ftpUrl.startsWith("sftp")) { throw new ParamException("ftp上传路径无效"); } } /** * 判空 */ public static void checkNull(Object obj) { if (obj == null) throw new IllegalArgumentException("不能传入空对象"); } /** * 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} * * @param page 从1 开始 * @param num 每页数量 */ public static void checkPageParams(int page, int num) { if (page < 1 || num < 1) throw new NullPointerException("page和num不能小于1"); } /** * 检查sql的expression是否合法 * * @return false 不合法 */ public static boolean checkSqlExpression(String... expression) { if (expression.length == 0) { ALog.e(TAG, "sql语句表达式不能为null"); return false; } if (expression.length == 1) { ALog.e(TAG, String.format("表达式需要写入参数,参数信息:%s", Arrays.toString(expression))); return false; } String where = expression[0]; if (!where.contains("?")) { ALog.e(TAG, String.format("请在where语句的'='后编写?,参数信息:%s", Arrays.toString(expression))); return false; } Pattern pattern = Pattern.compile("\\?"); Matcher matcher = pattern.matcher(where); int count = 0; while (matcher.find()) { count++; } if (count < expression.length - 1) { ALog.e(TAG, String.format("条件语句的?个数不能小于参数个数,参数信息:%s", Arrays.toString(expression))); return false; } if (count > expression.length - 1) { ALog.e(TAG, String.format("条件语句的?个数不能大于参数个数, 参数信息:%s", Arrays.toString(expression))); return false; } return true; } /** * 检查下载实体 */ public static void checkDownloadEntity(DownloadEntity entity) { checkUrlInvalidThrow(entity.getUrl()); entity.setUrl(entity.getUrl()); checkPath(entity.getDownloadPath()); } /** * 检测下载链接是否为null */ public static void checkPath(String path) { if (TextUtils.isEmpty(path)) { throw new IllegalArgumentException("保存路径不能为null"); } } /** * 检测url是否合法,如果url不合法,将抛异常 */ public static void checkTaskId(long taskId) { if (taskId < 0) { throw new IllegalArgumentException("任务id不能小于0"); } } /** * 检测url是否合法,如果url不合法,将抛异常 */ public static void checkUrlInvalidThrow(String url) { if (TextUtils.isEmpty(url)) { throw new IllegalArgumentException("url不能为null"); } else if (!url.startsWith("http") && !url.startsWith("ftp") && !url.startsWith("sftp")) { throw new IllegalArgumentException("url错误"); } int index = url.indexOf("://"); if (index == -1) { throw new IllegalArgumentException("url不合法"); } } /** * 检测url是否合法,如果url不合法,将抛出{@link IllegalArgumentException}异常 */ public static void checkUrl(String url) { if (TextUtils.isEmpty(url)) { throw new NullPointerException("url为空"); } else if (!url.startsWith("http") && !url.startsWith("ftp") && !url.startsWith("sftp")) { throw new IllegalArgumentException(String.format("url【%s】错误", url)); } int index = url.indexOf("://"); if (index == -1) { throw new IllegalArgumentException(String.format("url【%s】不合法", url)); } } /** * 检测url是否合法 * * @return {@code true} 合法,{@code false} 非法 */ public static boolean checkUrlNotThrow(String url) { if (TextUtils.isEmpty(url)) { ALog.e(TAG, "url不能为null"); return false; } else if (!url.startsWith("http") && !url.startsWith("ftp") && !url.startsWith("sftp")) { ALog.e(TAG, "url【" + url + "】错误"); return false; } int index = url.indexOf("://"); if (index == -1) { ALog.e(TAG, "url【" + url + "】不合法"); } return true; } /** * 检测下载链接组是否为null */ public static void checkDownloadUrls(List urls) { if (urls == null || urls.isEmpty()) { throw new IllegalArgumentException("链接组不能为null"); } } /** * 检查下载任务组保存路径 */ public static void checkDownloadPaths(List paths) { if (paths == null || paths.isEmpty()) { throw new IllegalArgumentException("链接保存路径不能为null"); } } /** * 检测上传地址是否为null */ public static void checkUploadPath(String uploadPath) { if (TextUtils.isEmpty(uploadPath)) { throw new IllegalArgumentException("上传地址不能为null"); } File file = new File(uploadPath); if (!file.exists()) { throw new IllegalArgumentException("上传文件不存在"); } } /** * 检查任务实体 */ public static void checkTaskEntity(AbsTaskWrapper entity) { if (entity instanceof DTaskWrapper) { checkDownloadTaskEntity(((DTaskWrapper) entity).getEntity()); } else if (entity instanceof UTaskWrapper) { checkUploadTaskEntity(((UTaskWrapper) entity).getEntity()); } } /** * 检查命令实体 * * @param checkType 删除命令和停止命令不需要检查下载链接和保存路径 * @return {@code false}实体无效 */ public static boolean checkCmdEntity(AbsTaskWrapper entity, boolean checkType) { boolean b = false; if (entity instanceof DTaskWrapper) { DownloadEntity entity1 = ((DTaskWrapper) entity).getEntity(); if (entity1 == null) { ALog.e(TAG, "下载实体不能为空"); } else if (checkType && TextUtils.isEmpty(entity1.getUrl())) { ALog.e(TAG, "下载链接不能为空"); } else if (checkType && TextUtils.isEmpty(entity1.getDownloadPath())) { ALog.e(TAG, "保存路径不能为空"); } else { b = true; } } else if (entity instanceof UTaskWrapper) { UploadEntity entity1 = ((UTaskWrapper) entity).getEntity(); if (entity1 == null) { ALog.e(TAG, "上传实体不能为空"); } else if (TextUtils.isEmpty(entity1.getFilePath())) { ALog.e(TAG, "上传文件路径不能为空"); } else { b = true; } } return b; } /** * 检查上传实体是否合法 */ private static void checkUploadTaskEntity(UploadEntity entity) { if (entity == null) { throw new NullPointerException("上传实体不能为空"); } else if (TextUtils.isEmpty(entity.getFilePath())) { throw new IllegalArgumentException("上传文件路径不能为空"); } else if (TextUtils.isEmpty(entity.getFileName())) { throw new IllegalArgumentException("上传文件名不能为空"); } } /** * 检测下载实体是否合法 * 合法(true) * * @param entity 下载实体 */ private static void checkDownloadTaskEntity(DownloadEntity entity) { if (entity == null) { throw new NullPointerException("下载实体不能为空"); } else if (TextUtils.isEmpty(entity.getUrl())) { throw new IllegalArgumentException("下载链接不能为空"); } else if (TextUtils.isEmpty(entity.getFileName())) { throw new NullPointerException("文件名不能为null"); } else if (TextUtils.isEmpty(entity.getDownloadPath())) { throw new NullPointerException("文件保存路径不能为null"); } } }