Java URL Create buildURL(String spec)

Description

build URL

License

Apache License

Declaration

public static URL buildURL(String spec) 

Method Source Code

//package com.java2s;
/*/*w ww  .  jav  a  2s .c om*/
 * @(#)$Id: ResourceUtils.java 3619 2008-03-26 07:23:03Z yui $
 *
 * Copyright 2006-2008 Makoto YUI
 *
 * 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.
 * 
 * Contributors:
 *     Makoto YUI - initial implementation
 */

import java.io.File;
import java.net.*;

public class Main {
    public static URL buildURL(String spec) {
        assert (spec != null);
        final boolean isFile = spec.startsWith("file:");
        try {
            if (isFile) {
                final File file = new File(spec.substring(5));
                return adjustTrailingSlash(file.toURL(), file.isDirectory());
            }
            return new URL(spec);
        } catch (MalformedURLException e) {
            throw new IllegalArgumentException("Could't build URL: " + spec);
        }
    }

    private static URL adjustTrailingSlash(URL url, boolean trailingSlash) throws MalformedURLException {
        String file = url.getFile();
        if (trailingSlash == (file.endsWith("/"))) {
            return url;
        }
        file = trailingSlash ? file + "/" : file.substring(0, file.length() - 1);
        return new URL(url.getProtocol(), url.getHost(), file);
    }
}

Related

1. buildUrl(String host, int port, String path, Map parameters)
2. buildURL(String host, String path, Map params)
3. buildURL(String id)
4. buildUrl(String repositoryUrl, String resourceUrl)
5. buildURL(String spec)
6. buildURL(String spec, boolean trailingSlash)
7. buildURL(String url)
8. buildUrl(String url)
9. buildURL(String url)