org.javaweb.utils.FileUtils.java Source code

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Here is the source code for org.javaweb.utils.FileUtils.java

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/*
 * Copyright yz 2016-01-14  Email:admin@javaweb.org.
 *
 * 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 org.javaweb.utils;

import java.io.*;
import java.net.JarURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.Properties;

public class FileUtils extends org.apache.commons.io.FileUtils {

    protected static FileUtils fileUtils = new FileUtils();

    /**
     * ??
     *
     * @param str
     * @return
     */
    public static String getFileSuffix(String str) {
        return str.substring(str.lastIndexOf(".") + 1);
    }

    /**
     * ??
     *
     * @param path
     * @return
     */
    public static URL getPackageResourcePath(String path) {
        return fileUtils.getClass().getClassLoader().getResource(path);
    }

    /**
     * ??
     *
     * @return
     */
    public static File getCurrentDirectory() {
        File file = new File(".");

        if (file.getParent() != null) {
            return file.getParentFile();
        }

        return new File(System.getProperty("user.dir"));
    }

    /**
     * ???
     *
     * @param path
     * @return
     */
    public static InputStream getPackageResourceAsStream(String path) {
        return fileUtils.getClass().getResourceAsStream(path);
    }

    /**
     * ? Properties 
     *
     * @param f
     * @return
     * @throws FileNotFoundException
     */
    public static Properties getProperties(File f) throws FileNotFoundException {
        return getProperties(new FileInputStream(f));
    }

    /**
     * jar???
     *
     * @param url
     * @return
     * @throws IOException
     */
    public static InputStream getResourceFromJarFile(URL url) throws IOException {
        URLConnection urlConnection = url.openConnection();

        if (urlConnection instanceof JarURLConnection) {
            JarURLConnection jarConnection = (JarURLConnection) url.openConnection();
            return jarConnection.getInputStream();
        } else {
            throw new IOException("URL ??JarURLConnection.");
        }
    }

    /**
     * ???? Properties 
     *
     * @param in
     * @return
     */
    public static Properties getProperties(InputStream in) {
        Properties p = new Properties();

        try {
            p.load(in);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                IOUtils.closeQuietly(in);
            }
        }

        return p;
    }

    /**
     * ??
     *
     * @param path
     * @return
     */
    public static String fileSplitHandle(String path) {
        if (StringUtils.isNotEmpty(path)) {
            return (path.trim().replaceAll("\\\\", "/") + "/").replaceAll("/+", "/");
        } else {
            return path;
        }
    }

}