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add method
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@ -11,6 +11,7 @@
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* 【core】 ClassScanner支持自定义ClassLoader
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* 【core】 ClassScanner支持自定义ClassLoader
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* 【core】 修改错别字(pr#568@Github)
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* 【core】 修改错别字(pr#568@Github)
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* 【core】 增加DateUtil.parseCST方法(issue#570@Github)
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* 【core】 增加DateUtil.parseCST方法(issue#570@Github)
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* 【core】 增加defaultIfEmpty方法
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### Bug修复
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### Bug修复
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* 【all】 修复阶乘计算错误bug(issue#I12XE4@Gitee)
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* 【all】 修复阶乘计算错误bug(issue#I12XE4@Gitee)
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@ -1389,6 +1389,20 @@ public class CollUtil {
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return collection == null || collection.isEmpty();
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return collection == null || collection.isEmpty();
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}
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}
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/**
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* 如果给定集合为空,返回默认集合
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*
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* @param <T> 集合类型
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* @param <E> 集合元素类型
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* @param collection 集合
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* @param defaultCollection 默认数组
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* @return 非空(empty)的原集合或默认集合
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* @since 4.6.9
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*/
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public static <T extends Collection<E>, E> T defaultIfEmpty(T collection, T defaultCollection){
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return isEmpty(collection) ? defaultCollection : collection;
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}
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/**
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/**
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* Map是否为空
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* Map是否为空
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*
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*
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@ -34,245 +34,293 @@ import cn.hutool.core.util.StrUtil;
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import cn.hutool.core.util.URLUtil;
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import cn.hutool.core.util.URLUtil;
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/**
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/**
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* 路径监听器<br>
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* 路径监听器
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*
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* <p>
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* 监听器可监听目录或文件<br>
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* 监听器可监听目录或文件<br>
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* 如果监听的Path不存在,则递归创建空目录然后监听此空目录<br>
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* 如果监听的Path不存在,则递归创建空目录然后监听此空目录<br>
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* 递归监听目录时,并不会监听新创建的目录
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* 递归监听目录时,并不会监听新创建的目录
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*
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* @author Looly
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*
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*
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* @author Looly
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*/
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*/
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public class WatchMonitor extends Thread implements Closeable, Serializable{
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public class WatchMonitor extends Thread implements Closeable, Serializable {
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private static final long serialVersionUID = 1L;
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private static final long serialVersionUID = 1L;
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/** 事件丢失 */
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/**
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* 事件丢失
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*/
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public static final WatchEvent.Kind<?> OVERFLOW = StandardWatchEventKinds.OVERFLOW;
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public static final WatchEvent.Kind<?> OVERFLOW = StandardWatchEventKinds.OVERFLOW;
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/** 修改事件 */
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/**
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* 修改事件
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*/
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public static final WatchEvent.Kind<?> ENTRY_MODIFY = StandardWatchEventKinds.ENTRY_MODIFY;
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public static final WatchEvent.Kind<?> ENTRY_MODIFY = StandardWatchEventKinds.ENTRY_MODIFY;
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/** 创建事件 */
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/**
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* 创建事件
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*/
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public static final WatchEvent.Kind<?> ENTRY_CREATE = StandardWatchEventKinds.ENTRY_CREATE;
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public static final WatchEvent.Kind<?> ENTRY_CREATE = StandardWatchEventKinds.ENTRY_CREATE;
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/** 删除事件 */
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/**
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* 删除事件
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*/
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public static final WatchEvent.Kind<?> ENTRY_DELETE = StandardWatchEventKinds.ENTRY_DELETE;
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public static final WatchEvent.Kind<?> ENTRY_DELETE = StandardWatchEventKinds.ENTRY_DELETE;
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/** 全部事件 */
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/**
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* 全部事件
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*/
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public static final WatchEvent.Kind<?>[] EVENTS_ALL = {//
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public static final WatchEvent.Kind<?>[] EVENTS_ALL = {//
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OVERFLOW, //事件丢失
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OVERFLOW, //事件丢失
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ENTRY_MODIFY, //修改
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ENTRY_MODIFY, //修改
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ENTRY_CREATE, //创建
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ENTRY_CREATE, //创建
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ENTRY_DELETE //删除
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ENTRY_DELETE //删除
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};
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};
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/** 监听路径,必须为目录 */
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/**
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* 监听路径,必须为目录
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*/
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private Path path;
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private Path path;
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/** 递归目录的最大深度,当小于1时不递归下层目录 */
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/**
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* 递归目录的最大深度,当小于1时不递归下层目录
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*/
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private int maxDepth;
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private int maxDepth;
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/** 监听的文件,对于单文件监听不为空 */
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/**
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* 监听的文件,对于单文件监听不为空
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*/
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private Path filePath;
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private Path filePath;
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/** 监听服务 */
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/**
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* 监听服务
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*/
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private WatchService watchService;
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private WatchService watchService;
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/** 监听器 */
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/**
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* 监听器
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*/
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private Watcher watcher;
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private Watcher watcher;
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/** 监听事件列表 */
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/**
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* 监听事件列表
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*/
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private WatchEvent.Kind<?>[] events;
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private WatchEvent.Kind<?>[] events;
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/** 监听是否已经关闭 */
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/**
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* 监听是否已经关闭
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*/
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private boolean isClosed;
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private boolean isClosed;
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/** WatchKey 和 Path的对应表 */
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/**
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* WatchKey 和 Path的对应表
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*/
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private Map<WatchKey, Path> watchKeyPathMap = new HashMap<>();
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private Map<WatchKey, Path> watchKeyPathMap = new HashMap<>();
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//------------------------------------------------------ Static method start
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//------------------------------------------------------ Static method start
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param url URL
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*
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* @param url URL
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* @param events 监听的事件列表
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* @param events 监听的事件列表
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(URL url, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(URL url, WatchEvent.Kind<?>... events) {
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return create(url, 0, events);
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return create(url, 0, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param url URL
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*
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* @param events 监听的事件列表
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* @param url URL
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* @param events 监听的事件列表
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(URL url, int maxDepth, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(URL url, int maxDepth, WatchEvent.Kind<?>... events) {
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return create(URLUtil.toURI(url), maxDepth, events);
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return create(URLUtil.toURI(url), maxDepth, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param uri URI
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*
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* @param uri URI
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* @param events 监听的事件列表
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* @param events 监听的事件列表
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(URI uri, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(URI uri, WatchEvent.Kind<?>... events) {
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return create(uri, 0, events);
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return create(uri, 0, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param uri URI
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*
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* @param events 监听的事件列表
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* @param uri URI
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* @param events 监听的事件列表
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(URI uri, int maxDepth, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(URI uri, int maxDepth, WatchEvent.Kind<?>... events) {
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return create(Paths.get(uri), maxDepth, events);
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return create(Paths.get(uri), maxDepth, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param file 文件
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*
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* @param file 文件
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* @param events 监听的事件列表
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* @param events 监听的事件列表
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(File file, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(File file, WatchEvent.Kind<?>... events) {
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return create(file, 0, events);
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return create(file, 0, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param file 文件
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*
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* @param events 监听的事件列表
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* @param file 文件
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* @param events 监听的事件列表
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(File file, int maxDepth, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(File file, int maxDepth, WatchEvent.Kind<?>... events) {
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return create(file.toPath(), maxDepth, events);
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return create(file.toPath(), maxDepth, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param path 路径
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*
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* @param path 路径
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* @param events 监听的事件列表
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* @param events 监听的事件列表
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(String path, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(String path, WatchEvent.Kind<?>... events) {
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return create(path, 0, events);
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return create(path, 0, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param path 路径
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*
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* @param events 监听的事件列表
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* @param path 路径
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* @param events 监听的事件列表
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(String path, int maxDepth, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(String path, int maxDepth, WatchEvent.Kind<?>... events) {
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return create(Paths.get(path), maxDepth, events);
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return create(Paths.get(path), maxDepth, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param path 路径
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*
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* @param path 路径
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* @param events 监听事件列表
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* @param events 监听事件列表
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(Path path, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(Path path, WatchEvent.Kind<?>... events) {
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return create(path, 0, events);
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return create(path, 0, events);
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}
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}
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/**
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/**
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* 创建并初始化监听
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* 创建并初始化监听
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* @param path 路径
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*
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* @param events 监听事件列表
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* @param path 路径
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* @param events 监听事件列表
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @param maxDepth 当监听目录时,监听目录的最大深度,当设置值为1(或小于1)时,表示不递归监听子目录
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* @return 监听对象
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* @return 监听对象
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*/
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*/
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public static WatchMonitor create(Path path, int maxDepth, WatchEvent.Kind<?>... events){
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public static WatchMonitor create(Path path, int maxDepth, WatchEvent.Kind<?>... events) {
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return new WatchMonitor(path, maxDepth, events);
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return new WatchMonitor(path, maxDepth, events);
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}
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}
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//--------- createAll
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//--------- createAll
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/**
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/**
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* 创建并初始化监听,监听所有事件
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* 创建并初始化监听,监听所有事件
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* @param uri URI
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*
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* @param uri URI
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* @param watcher {@link Watcher}
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* @param watcher {@link Watcher}
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* @return {@link WatchMonitor}
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* @return {@link WatchMonitor}
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*/
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*/
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public static WatchMonitor createAll(URI uri, Watcher watcher){
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public static WatchMonitor createAll(URI uri, Watcher watcher) {
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return createAll(Paths.get(uri), watcher);
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return createAll(Paths.get(uri), watcher);
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}
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}
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/**
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/**
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* 创建并初始化监听,监听所有事件
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* 创建并初始化监听,监听所有事件
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* @param url URL
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*
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* @param url URL
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* @param watcher {@link Watcher}
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* @param watcher {@link Watcher}
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* @return {@link WatchMonitor}
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* @return {@link WatchMonitor}
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*/
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*/
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public static WatchMonitor createAll(URL url, Watcher watcher){
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public static WatchMonitor createAll(URL url, Watcher watcher) {
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try {
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try {
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return createAll(Paths.get(url.toURI()), watcher);
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return createAll(Paths.get(url.toURI()), watcher);
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} catch (URISyntaxException e) {
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} catch (URISyntaxException e) {
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throw new WatchException(e);
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throw new WatchException(e);
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}
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}
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}
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}
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/**
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/**
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* 创建并初始化监听,监听所有事件
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* 创建并初始化监听,监听所有事件
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* @param file 被监听文件
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*
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* @param file 被监听文件
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* @param watcher {@link Watcher}
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* @param watcher {@link Watcher}
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* @return {@link WatchMonitor}
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* @return {@link WatchMonitor}
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*/
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*/
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public static WatchMonitor createAll(File file, Watcher watcher){
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public static WatchMonitor createAll(File file, Watcher watcher) {
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return createAll(file.toPath(), watcher);
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return createAll(file.toPath(), watcher);
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}
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}
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/**
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/**
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* 创建并初始化监听,监听所有事件
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* 创建并初始化监听,监听所有事件
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* @param path 路径
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*
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* @param path 路径
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* @param watcher {@link Watcher}
|
* @param watcher {@link Watcher}
|
||||||
* @return {@link WatchMonitor}
|
* @return {@link WatchMonitor}
|
||||||
*/
|
*/
|
||||||
public static WatchMonitor createAll(String path, Watcher watcher){
|
public static WatchMonitor createAll(String path, Watcher watcher) {
|
||||||
return createAll(Paths.get(path), watcher);
|
return createAll(Paths.get(path), watcher);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 创建并初始化监听,监听所有事件
|
* 创建并初始化监听,监听所有事件
|
||||||
* @param path 路径
|
*
|
||||||
|
* @param path 路径
|
||||||
* @param watcher {@link Watcher}
|
* @param watcher {@link Watcher}
|
||||||
* @return {@link WatchMonitor}
|
* @return {@link WatchMonitor}
|
||||||
*/
|
*/
|
||||||
public static WatchMonitor createAll(Path path, Watcher watcher){
|
public static WatchMonitor createAll(Path path, Watcher watcher) {
|
||||||
final WatchMonitor watchMonitor = create(path, EVENTS_ALL);
|
final WatchMonitor watchMonitor = create(path, EVENTS_ALL);
|
||||||
watchMonitor.setWatcher(watcher);
|
watchMonitor.setWatcher(watcher);
|
||||||
return watchMonitor;
|
return watchMonitor;
|
||||||
}
|
}
|
||||||
//------------------------------------------------------ Static method end
|
//------------------------------------------------------ Static method end
|
||||||
|
|
||||||
//------------------------------------------------------ Constructor method start
|
//------------------------------------------------------ Constructor method start
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 构造
|
* 构造
|
||||||
* @param file 文件
|
*
|
||||||
|
* @param file 文件
|
||||||
* @param events 监听的事件列表
|
* @param events 监听的事件列表
|
||||||
*/
|
*/
|
||||||
public WatchMonitor(File file, WatchEvent.Kind<?>... events) {
|
public WatchMonitor(File file, WatchEvent.Kind<?>... events) {
|
||||||
this(file.toPath(), events);
|
this(file.toPath(), events);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 构造
|
* 构造
|
||||||
* @param path 字符串路径
|
*
|
||||||
|
* @param path 字符串路径
|
||||||
* @param events 监听的事件列表
|
* @param events 监听的事件列表
|
||||||
*/
|
*/
|
||||||
public WatchMonitor(String path, WatchEvent.Kind<?>... events) {
|
public WatchMonitor(String path, WatchEvent.Kind<?>... events) {
|
||||||
this(Paths.get(path), events);
|
this(Paths.get(path), events);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 构造
|
* 构造
|
||||||
* @param path 字符串路径
|
*
|
||||||
|
* @param path 字符串路径
|
||||||
* @param events 监听事件列表
|
* @param events 监听事件列表
|
||||||
*/
|
*/
|
||||||
public WatchMonitor(Path path, WatchEvent.Kind<?>... events) {
|
public WatchMonitor(Path path, WatchEvent.Kind<?>... events) {
|
||||||
this(path, 0, events);
|
this(path, 0, events);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 构造<br>
|
* 构造<br>
|
||||||
* 例如设置:
|
* 例如设置:
|
||||||
@ -281,10 +329,10 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
* maxDepth = 2 表示监听当前目录以及下层目录
|
* maxDepth = 2 表示监听当前目录以及下层目录
|
||||||
* maxDepth = 3 表示监听当前目录以及下层
|
* maxDepth = 3 表示监听当前目录以及下层
|
||||||
* </pre>
|
* </pre>
|
||||||
*
|
*
|
||||||
* @param path 字符串路径
|
* @param path 字符串路径
|
||||||
* @param maxDepth 递归目录的最大深度,当小于2时不递归下层目录
|
* @param maxDepth 递归目录的最大深度,当小于2时不递归下层目录
|
||||||
* @param events 监听事件列表
|
* @param events 监听事件列表
|
||||||
*/
|
*/
|
||||||
public WatchMonitor(Path path, int maxDepth, WatchEvent.Kind<?>... events) {
|
public WatchMonitor(Path path, int maxDepth, WatchEvent.Kind<?>... events) {
|
||||||
this.path = path;
|
this.path = path;
|
||||||
@ -293,7 +341,7 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
this.init();
|
this.init();
|
||||||
}
|
}
|
||||||
//------------------------------------------------------ Constructor method end
|
//------------------------------------------------------ Constructor method end
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 初始化<br>
|
* 初始化<br>
|
||||||
* 初始化包括:
|
* 初始化包括:
|
||||||
@ -301,111 +349,89 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
* 1、解析传入的路径,判断其为目录还是文件
|
* 1、解析传入的路径,判断其为目录还是文件
|
||||||
* 2、创建{@link WatchService} 对象
|
* 2、创建{@link WatchService} 对象
|
||||||
* </pre>
|
* </pre>
|
||||||
*
|
*
|
||||||
* @throws WatchException 监听异常,IO异常时抛出此异常
|
* @throws WatchException 监听异常,IO异常时抛出此异常
|
||||||
*/
|
*/
|
||||||
public void init() throws WatchException{
|
public void init() throws WatchException {
|
||||||
//获取目录或文件路径
|
//获取目录或文件路径
|
||||||
if(false ==Files.exists(this.path, LinkOption.NOFOLLOW_LINKS)) {
|
if (false == Files.exists(this.path, LinkOption.NOFOLLOW_LINKS)) {
|
||||||
|
// 不存在的路径
|
||||||
final Path lastPathEle = FileUtil.getLastPathEle(this.path);
|
final Path lastPathEle = FileUtil.getLastPathEle(this.path);
|
||||||
if(null != lastPathEle) {
|
if (null != lastPathEle) {
|
||||||
final String lastPathEleStr = lastPathEle.toString();
|
final String lastPathEleStr = lastPathEle.toString();
|
||||||
//带有点表示有扩展名,按照未创建的文件对待。Linux下.d的为目录,排除之
|
//带有点表示有扩展名,按照未创建的文件对待。Linux下.d的为目录,排除之
|
||||||
if(StrUtil.contains(lastPathEleStr, StrUtil.C_DOT) && false ==StrUtil.endWithIgnoreCase(lastPathEleStr, ".d")) {
|
if (StrUtil.contains(lastPathEleStr, StrUtil.C_DOT) && false == StrUtil.endWithIgnoreCase(lastPathEleStr, ".d")) {
|
||||||
this.filePath = this.path;
|
this.filePath = this.path;
|
||||||
this.path = this.filePath.getParent();
|
this.path = this.filePath.getParent();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
//创建不存在的目录或父目录
|
//创建不存在的目录或父目录
|
||||||
try {
|
try {
|
||||||
Files.createDirectories(this.path);
|
Files.createDirectories(this.path);
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
throw new IORuntimeException(e);
|
throw new IORuntimeException(e);
|
||||||
}
|
}
|
||||||
}else if(Files.isRegularFile(this.path, LinkOption.NOFOLLOW_LINKS)){
|
} else if (Files.isRegularFile(this.path, LinkOption.NOFOLLOW_LINKS)) {
|
||||||
|
// 文件路径
|
||||||
this.filePath = this.path;
|
this.filePath = this.path;
|
||||||
this.path = this.filePath.getParent();
|
this.path = this.filePath.getParent();
|
||||||
}
|
}
|
||||||
|
|
||||||
//初始化监听
|
//初始化监听
|
||||||
try {
|
try {
|
||||||
watchService = FileSystems.getDefault().newWatchService();
|
watchService = FileSystems.getDefault().newWatchService();
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
throw new WatchException(e);
|
throw new WatchException(e);
|
||||||
}
|
}
|
||||||
|
|
||||||
isClosed = false;
|
isClosed = false;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 设置监听<br>
|
* 设置监听<br>
|
||||||
* 多个监听请使用{@link WatcherChain}
|
* 多个监听请使用{@link WatcherChain}
|
||||||
*
|
*
|
||||||
* @param watcher 监听
|
* @param watcher 监听
|
||||||
* @return {@link WatchMonitor}
|
* @return {@link WatchMonitor}
|
||||||
*/
|
*/
|
||||||
public WatchMonitor setWatcher(Watcher watcher){
|
public WatchMonitor setWatcher(Watcher watcher) {
|
||||||
this.watcher = watcher;
|
this.watcher = watcher;
|
||||||
return this;
|
return this;
|
||||||
}
|
}
|
||||||
|
|
||||||
@Override
|
@Override
|
||||||
public void run() {
|
public void run() {
|
||||||
watch();
|
watch();
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 开始监听事件,阻塞当前进程
|
* 开始监听事件,阻塞当前进程
|
||||||
*/
|
*/
|
||||||
public void watch(){
|
public void watch() {
|
||||||
watch(this.watcher);
|
watch(this.watcher);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 开始监听事件,阻塞当前进程
|
* 开始监听事件,阻塞当前进程
|
||||||
|
*
|
||||||
* @param watcher 监听
|
* @param watcher 监听
|
||||||
* @throws WatchException 监听异常,如果监听关闭抛出此异常
|
* @throws WatchException 监听异常,如果监听关闭抛出此异常
|
||||||
*/
|
*/
|
||||||
public void watch(Watcher watcher) throws WatchException{
|
public void watch(Watcher watcher) throws WatchException {
|
||||||
if(isClosed){
|
if (isClosed) {
|
||||||
throw new WatchException("Watch Monitor is closed !");
|
throw new WatchException("Watch Monitor is closed !");
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// 按照层级注册路径及其子路径
|
||||||
registerPath();
|
registerPath();
|
||||||
// log.debug("Start watching path: [{}]", this.path);
|
// log.debug("Start watching path: [{}]", this.path);
|
||||||
|
|
||||||
while (false == isClosed) {
|
while (false == isClosed) {
|
||||||
WatchKey wk;
|
doTakeAndWatch(watcher);
|
||||||
try {
|
|
||||||
wk = watchService.take();
|
|
||||||
} catch (InterruptedException | ClosedWatchServiceException e) {
|
|
||||||
// log.warn(e);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
final Path currentPath = watchKeyPathMap.get(wk);
|
|
||||||
WatchEvent.Kind<?> kind;
|
|
||||||
for (WatchEvent<?> event : wk.pollEvents()) {
|
|
||||||
kind = event.kind();
|
|
||||||
if(null != this.filePath && false == this.filePath.endsWith(event.context().toString())){
|
|
||||||
// log.debug("[{}] is not fit for [{}], pass it.", event.context(), this.filePath.getFileName());
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
if(kind == StandardWatchEventKinds.ENTRY_CREATE){
|
|
||||||
watcher.onCreate(event, currentPath);
|
|
||||||
}else if(kind == StandardWatchEventKinds.ENTRY_MODIFY){
|
|
||||||
watcher.onModify(event, currentPath);
|
|
||||||
}else if(kind == StandardWatchEventKinds.ENTRY_DELETE){
|
|
||||||
watcher.onDelete(event, currentPath);
|
|
||||||
}else if(kind == StandardWatchEventKinds.OVERFLOW){
|
|
||||||
watcher.onOverflow(event, currentPath);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
wk.reset();
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 当监听目录时,监听目录的最大深度<br>
|
* 当监听目录时,监听目录的最大深度<br>
|
||||||
* 当设置值为1(或小于1)时,表示不递归监听子目录<br>
|
* 当设置值为1(或小于1)时,表示不递归监听子目录<br>
|
||||||
@ -415,7 +441,7 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
* maxDepth = 2 表示监听当前目录以及下层目录
|
* maxDepth = 2 表示监听当前目录以及下层目录
|
||||||
* maxDepth = 3 表示监听当前目录以及下层
|
* maxDepth = 3 表示监听当前目录以及下层
|
||||||
* </pre>
|
* </pre>
|
||||||
*
|
*
|
||||||
* @param maxDepth 最大深度,当设置值为1(或小于1)时,表示不递归监听子目录,监听所有子目录请传{@link Integer#MAX_VALUE}
|
* @param maxDepth 最大深度,当设置值为1(或小于1)时,表示不递归监听子目录,监听所有子目录请传{@link Integer#MAX_VALUE}
|
||||||
* @return this
|
* @return this
|
||||||
*/
|
*/
|
||||||
@ -423,37 +449,76 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
this.maxDepth = maxDepth;
|
this.maxDepth = maxDepth;
|
||||||
return this;
|
return this;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 关闭监听
|
* 关闭监听
|
||||||
*/
|
*/
|
||||||
@Override
|
@Override
|
||||||
public void close(){
|
public void close() {
|
||||||
isClosed = true;
|
isClosed = true;
|
||||||
IoUtil.close(watchService);
|
IoUtil.close(watchService);
|
||||||
}
|
}
|
||||||
|
|
||||||
//------------------------------------------------------ private method start
|
//------------------------------------------------------ private method start
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 执行事件获取并处理
|
||||||
|
*
|
||||||
|
* @param watcher {@link Watcher}
|
||||||
|
*/
|
||||||
|
private void doTakeAndWatch(Watcher watcher){
|
||||||
|
WatchKey wk;
|
||||||
|
try {
|
||||||
|
wk = watchService.take();
|
||||||
|
} catch (InterruptedException | ClosedWatchServiceException e) {
|
||||||
|
// 用户中断
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
final Path currentPath = watchKeyPathMap.get(wk);
|
||||||
|
WatchEvent.Kind<?> kind;
|
||||||
|
for (WatchEvent<?> event : wk.pollEvents()) {
|
||||||
|
kind = event.kind();
|
||||||
|
|
||||||
|
// 如果监听文件,检查当前事件是否与所监听文件关联
|
||||||
|
if (null != this.filePath && false == this.filePath.endsWith(event.context().toString())) {
|
||||||
|
// log.debug("[{}] is not fit for [{}], pass it.", event.context(), this.filePath.getFileName());
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (kind == StandardWatchEventKinds.ENTRY_CREATE) {
|
||||||
|
watcher.onCreate(event, currentPath);
|
||||||
|
} else if (kind == StandardWatchEventKinds.ENTRY_MODIFY) {
|
||||||
|
watcher.onModify(event, currentPath);
|
||||||
|
} else if (kind == StandardWatchEventKinds.ENTRY_DELETE) {
|
||||||
|
watcher.onDelete(event, currentPath);
|
||||||
|
} else if (kind == StandardWatchEventKinds.OVERFLOW) {
|
||||||
|
watcher.onOverflow(event, currentPath);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
wk.reset();
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 注册监听路径
|
* 注册监听路径
|
||||||
*/
|
*/
|
||||||
private void registerPath() {
|
private void registerPath() {
|
||||||
registerPath(this.path, (null != this.filePath) ? 0 : this.maxDepth);
|
registerPath(this.path, (null != this.filePath) ? 0 : this.maxDepth);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 将指定路径加入到监听中
|
* 将指定路径加入到监听中
|
||||||
* @param path 路径
|
*
|
||||||
|
* @param path 路径
|
||||||
* @param maxDepth 递归下层目录的最大深度
|
* @param maxDepth 递归下层目录的最大深度
|
||||||
* @return {@link WatchKey}
|
|
||||||
*/
|
*/
|
||||||
private void registerPath(Path path, int maxDepth) {
|
private void registerPath(Path path, int maxDepth) {
|
||||||
try {
|
try {
|
||||||
final WatchKey key = path.register(watchService, ArrayUtil.isEmpty(this.events) ? EVENTS_ALL : this.events);
|
final WatchKey key = path.register(this.watchService, ArrayUtil.defaultIfEmpty(this.events, EVENTS_ALL));
|
||||||
watchKeyPathMap.put(key, path);
|
watchKeyPathMap.put(key, path);
|
||||||
if(maxDepth > 1) {
|
if (maxDepth > 1) {
|
||||||
//遍历所有子目录并加入监听
|
//遍历所有子目录并加入监听
|
||||||
Files.walkFileTree(path, EnumSet.noneOf(FileVisitOption.class), maxDepth, new SimpleFileVisitor<Path>(){
|
Files.walkFileTree(path, EnumSet.noneOf(FileVisitOption.class), maxDepth, new SimpleFileVisitor<Path>() {
|
||||||
@Override
|
@Override
|
||||||
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
|
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
|
||||||
registerPath(dir, 0);//继续添加目录
|
registerPath(dir, 0);//继续添加目录
|
||||||
@ -462,7 +527,7 @@ public class WatchMonitor extends Thread implements Closeable, Serializable{
|
|||||||
});
|
});
|
||||||
}
|
}
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
if(e instanceof AccessDeniedException) {
|
if (e instanceof AccessDeniedException) {
|
||||||
//对于禁止访问的目录,跳过监听
|
//对于禁止访问的目录,跳过监听
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
@ -5,34 +5,39 @@ import java.nio.file.WatchEvent;
|
|||||||
|
|
||||||
/**
|
/**
|
||||||
* 观察者(监视器)
|
* 观察者(监视器)
|
||||||
|
*
|
||||||
* @author Looly
|
* @author Looly
|
||||||
*/
|
*/
|
||||||
public interface Watcher {
|
public interface Watcher {
|
||||||
/**
|
/**
|
||||||
* 文件创建时执行的方法
|
* 文件创建时执行的方法
|
||||||
* @param event 事件
|
*
|
||||||
|
* @param event 事件
|
||||||
* @param currentPath 事件发生的当前Path路径
|
* @param currentPath 事件发生的当前Path路径
|
||||||
*/
|
*/
|
||||||
void onCreate(WatchEvent<?> event, Path currentPath);
|
void onCreate(WatchEvent<?> event, Path currentPath);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 文件修改时执行的方法<br>
|
* 文件修改时执行的方法<br>
|
||||||
* 文件修改可能触发多次
|
* 文件修改可能触发多次
|
||||||
* @param event 事件
|
*
|
||||||
|
* @param event 事件
|
||||||
* @param currentPath 事件发生的当前Path路径
|
* @param currentPath 事件发生的当前Path路径
|
||||||
*/
|
*/
|
||||||
void onModify(WatchEvent<?> event, Path currentPath);
|
void onModify(WatchEvent<?> event, Path currentPath);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 文件删除时执行的方法
|
* 文件删除时执行的方法
|
||||||
* @param event 事件
|
*
|
||||||
|
* @param event 事件
|
||||||
* @param currentPath 事件发生的当前Path路径
|
* @param currentPath 事件发生的当前Path路径
|
||||||
*/
|
*/
|
||||||
void onDelete(WatchEvent<?> event, Path currentPath);
|
void onDelete(WatchEvent<?> event, Path currentPath);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 事件丢失或出错时执行的方法
|
* 事件丢失或出错时执行的方法
|
||||||
* @param event 事件
|
*
|
||||||
|
* @param event 事件
|
||||||
* @param currentPath 事件发生的当前Path路径
|
* @param currentPath 事件发生的当前Path路径
|
||||||
*/
|
*/
|
||||||
void onOverflow(WatchEvent<?> event, Path currentPath);
|
void onOverflow(WatchEvent<?> event, Path currentPath);
|
||||||
|
@ -1,19 +1,7 @@
|
|||||||
package cn.hutool.core.map;
|
package cn.hutool.core.map;
|
||||||
|
|
||||||
import java.util.AbstractMap;
|
import java.util.*;
|
||||||
import java.util.ArrayList;
|
|
||||||
import java.util.Collections;
|
|
||||||
import java.util.Comparator;
|
|
||||||
import java.util.Date;
|
|
||||||
import java.util.HashMap;
|
|
||||||
import java.util.IdentityHashMap;
|
|
||||||
import java.util.Iterator;
|
|
||||||
import java.util.LinkedHashMap;
|
|
||||||
import java.util.List;
|
|
||||||
import java.util.Map;
|
|
||||||
import java.util.Map.Entry;
|
import java.util.Map.Entry;
|
||||||
import java.util.Set;
|
|
||||||
import java.util.TreeMap;
|
|
||||||
import java.util.concurrent.ConcurrentHashMap;
|
import java.util.concurrent.ConcurrentHashMap;
|
||||||
|
|
||||||
import cn.hutool.core.collection.CollectionUtil;
|
import cn.hutool.core.collection.CollectionUtil;
|
||||||
@ -73,6 +61,21 @@ public class MapUtil {
|
|||||||
return (null == set) ? Collections.<K, V>emptyMap() : set;
|
return (null == set) ? Collections.<K, V>emptyMap() : set;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 如果给定Map为空,返回默认Map
|
||||||
|
*
|
||||||
|
* @param <T> 集合类型
|
||||||
|
* @param <K> 键类型
|
||||||
|
* @param <V> 值类型
|
||||||
|
* @param map Map
|
||||||
|
* @param defaultMap 默认Map
|
||||||
|
* @return 非空(empty)的原Map或默认Map
|
||||||
|
* @since 4.6.9
|
||||||
|
*/
|
||||||
|
public static <T extends Map<K, V>, K, V> T defaultIfEmpty(T map, T defaultMap){
|
||||||
|
return isEmpty(map) ? defaultMap : map;
|
||||||
|
}
|
||||||
|
|
||||||
// ----------------------------------------------------------------------------------------------- new HashMap
|
// ----------------------------------------------------------------------------------------------- new HashMap
|
||||||
/**
|
/**
|
||||||
* 新建一个HashMap
|
* 新建一个HashMap
|
||||||
|
@ -33,6 +33,19 @@ public class ArrayUtil {
|
|||||||
return array == null || array.length == 0;
|
return array == null || array.length == 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 如果给定数组为空,返回默认数组
|
||||||
|
*
|
||||||
|
* @param <T> 数组元素类型
|
||||||
|
* @param array 数组
|
||||||
|
* @param defaultArray 默认数组
|
||||||
|
* @return 非空(empty)的原数组或默认数组
|
||||||
|
* @since 4.6.9
|
||||||
|
*/
|
||||||
|
public static <T> T[] defaultIfEmpty(T[] array, T[] defaultArray){
|
||||||
|
return isEmpty(array) ? defaultArray : array;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 数组是否为空<br>
|
* 数组是否为空<br>
|
||||||
* 此方法会匹配单一对象,如果此对象为{@code null}则返回true<br>
|
* 此方法会匹配单一对象,如果此对象为{@code null}则返回true<br>
|
||||||
|
Loading…
Reference in New Issue
Block a user