Java ClassLoader isExist(String path)

Description

is Exist

License

Apache License

Declaration

public static boolean isExist(String path) 

Method Source Code

//package com.java2s;
/*/*from  w  w w . j a  va  2s  . c  o m*/
 * Copyright 2004-2011 the Seasar Foundation and the Others.
 *
 * 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.
 */

import java.net.URL;

public class Main {
    public static boolean isExist(String path) {
        return getResourceUrl(path) != null;
    }

    public static URL getResourceUrl(String path) {
        return getResourceUrl(path, null);
    }

    public static URL getResourceUrl(String path, String extension) {
        return getResourceUrl(path, extension, Thread.currentThread()
                .getContextClassLoader());
    }

    public static URL getResourceUrl(String path, String extension,
            ClassLoader loader) {
        if (path == null || loader == null) {
            return null;
        }
        path = getResourcePath(path, extension);
        return loader.getResource(path);
    }

    public static String getResourcePath(String path, String extension) {
        if (extension == null) {
            return path;
        }
        extension = "." + extension;
        if (path.endsWith(extension)) {
            return path;
        }
        return path.replace('.', '/') + extension;
    }

    public static String getResourcePath(Class<?> clazz) {
        return clazz.getName().replace('.', '/') + ".class";
    }
}

Related

1. createDirectoryLoader(String directory)
2. CreateLogbackXML(OutputStream out)
3. findFile(String filename)
4. hasImageFile(String name)
5. hasLogDatePatternMatcher(final String line)
6. isVMAlive(String procId)
7. load(File propsFile)
8. load(final String filename)
9. load(String propertiesName)