add VfdResource

CHANGELOG.md

@@ -22,6 +22,7 @@
 * 【core   】     SpringUtil增加publishEvent重载(pr#2139@Github)
 * 【core   】     DateUtil增加rangeContains、rangeNotContains(pr#537@Gitee)
 * 【core   】     Resource增加isModified默认方法
+* 【core   】     增加VfsResource
 
 ### 🐞Bug修复
 * 【core   】     修复ChineseDate农历获取正月出现数组越界BUG（issue#2112@Github）

hutool-core/src/main/java/cn/hutool/core/io/resource/UrlResource.java

@@ -7,6 +7,7 @@ import cn.hutool.core.util.URLUtil;
 import java.io.File;
 import java.io.InputStream;
 import java.io.Serializable;
+import java.net.URI;
 import java.net.URL;
 
 /**
@@ -22,6 +23,15 @@ public class UrlResource implements Resource, Serializable{
 	protected String name;
 
 	//-------------------------------------------------------------------------------------- Constructor start
+	/**
+	 * 构造
+	 * @param uri URI
+	 * @since 5.7.21
+	 */
+	public UrlResource(URI uri) {
+		this(URLUtil.url(uri), null);
+	}
+
 	/**
 	 * 构造
 	 * @param url URL
@@ -37,7 +47,7 @@ public class UrlResource implements Resource, Serializable{
 	 */
 	public UrlResource(URL url, String name) {
 		this.url = url;
-		if(null != url && URLUtil.isFileURL(url)){
+		if(null != url && URLUtil.URL_PROTOCOL_FILE.equals(url.getProtocol())){
 			this.lastModified = FileUtil.file(url).lastModified();
 		}
 		this.name = ObjectUtil.defaultIfNull(name, () -> (null != url ? FileUtil.getName(url.getPath()) : null));

hutool-core/src/main/java/cn/hutool/core/io/resource/VfsResource.java

@@ -0,0 +1,107 @@
+package cn.hutool.core.io.resource;
+
+import cn.hutool.core.lang.Assert;
+import cn.hutool.core.util.ClassLoaderUtil;
+import cn.hutool.core.util.ReflectUtil;
+
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.net.URL;
+
+/**
+ * VFS资源封装<br>
+ * 支持VFS 3.x on JBoss AS 6+，JBoss AS 7 and WildFly 8+<br>
+ * 参考：org.springframework.core.io.VfsUtils
+ *
+ * @author looly, Spring
+ * @since 5.7.21
+ */
+public class VfsResource implements Resource {
+	private static final String VFS3_PKG = "org.jboss.vfs.";
+
+	private static final Method VIRTUAL_FILE_METHOD_EXISTS;
+	private static final Method VIRTUAL_FILE_METHOD_GET_INPUT_STREAM;
+	private static final Method VIRTUAL_FILE_METHOD_GET_SIZE;
+	private static final Method VIRTUAL_FILE_METHOD_GET_LAST_MODIFIED;
+	private static final Method VIRTUAL_FILE_METHOD_TO_URL;
+	private static final Method VIRTUAL_FILE_METHOD_GET_NAME;
+
+	static {
+		Class<?> virtualFile = ClassLoaderUtil.loadClass(VFS3_PKG + "VirtualFile");
+		try {
+			VIRTUAL_FILE_METHOD_EXISTS = virtualFile.getMethod("exists");
+			VIRTUAL_FILE_METHOD_GET_INPUT_STREAM = virtualFile.getMethod("openStream");
+			VIRTUAL_FILE_METHOD_GET_SIZE = virtualFile.getMethod("getSize");
+			VIRTUAL_FILE_METHOD_GET_LAST_MODIFIED = virtualFile.getMethod("getLastModified");
+			VIRTUAL_FILE_METHOD_TO_URL = virtualFile.getMethod("toURL");
+			VIRTUAL_FILE_METHOD_GET_NAME = virtualFile.getMethod("getName");
+		} catch (NoSuchMethodException ex) {
+			throw new IllegalStateException("Could not detect JBoss VFS infrastructure", ex);
+		}
+	}
+
+	/**
+	 * org.jboss.vfs.VirtualFile实例对象
+	 */
+	private final Object virtualFile;
+	private final long lastModified;
+
+	/**
+	 * 构造
+	 *
+	 * @param resource org.jboss.vfs.VirtualFile实例对象
+	 */
+	public VfsResource(Object resource) {
+		Assert.notNull(resource, "VirtualFile must not be null");
+		this.virtualFile = resource;
+		this.lastModified = getLastModified();
+	}
+
+	/**
+	 * VFS文件是否存在
+	 *
+	 * @return 文件是否存在
+	 */
+	public boolean exists() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_EXISTS);
+	}
+
+	@Override
+	public String getName() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_GET_NAME);
+	}
+
+	@Override
+	public URL getUrl() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_TO_URL);
+	}
+
+	@Override
+	public InputStream getStream() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_GET_INPUT_STREAM);
+	}
+
+	@Override
+	public boolean isModified() {
+		return this.lastModified != getLastModified();
+	}
+
+	/**
+	 * 获得VFS文件最后修改时间
+	 *
+	 * @return 最后修改时间
+	 */
+	public long getLastModified() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_GET_LAST_MODIFIED);
+	}
+
+	/**
+	 * 获取VFS文件大小
+	 *
+	 * @return VFS文件大小
+	 */
+	public long size() {
+		return ReflectUtil.invoke(virtualFile, VIRTUAL_FILE_METHOD_GET_SIZE);
+	}
+
+}

hutool-core/src/main/java/cn/hutool/core/util/URLUtil.java

@@ -95,6 +95,26 @@ public class URLUtil extends URLEncodeUtil {
 	 */
 	public static final String WAR_URL_SEPARATOR = "*/";
 
+	/**
+	 * 将{@link URI}转换为{@link URL}
+	 *
+	 * @param uri {@link URI}
+	 * @return URL对象
+	 * @see URI#toURL()
+	 * @throws UtilException {@link MalformedURLException}包装，URI格式有问题时抛出
+	 * @since 5.7.21
+	 */
+	public static URL url(URI uri) throws UtilException{
+		if(null == uri){
+			return null;
+		}
+		try {
+			return uri.toURL();
+		} catch (MalformedURLException e) {
+			throw new UtilException(e);
+		}
+	}
+
 	/**
 	 * 通过一个字符串形式的URL地址创建URL对象
 	 *
@@ -114,7 +134,9 @@ public class URLUtil extends URLEncodeUtil {
 	 * @since 4.1.1
 	 */
 	public static URL url(String url, URLStreamHandler handler) {
-		Assert.notNull(url, "URL must not be null");
+		if(null == url){
+			return null;
+		}
 
 		// 兼容Spring的ClassPath路径
 		if (url.startsWith(CLASSPATH_URL_PREFIX)) {
@@ -142,6 +164,9 @@ public class URLUtil extends URLEncodeUtil {
 	 * @since 5.5.2
 	 */
 	public static URI getStringURI(CharSequence content) {
+		if(null == content){
+			return null;
+		}
 		final String contentStr = StrUtil.addPrefixIfNot(content, "string:///");
 		return URI.create(contentStr);
 	}