Java URI to Relative URI resolveURI(File base_dir, URI uri)

Description

If the uri has a file scheme, return a new absolute file url joining it to the base directory.

License

Apache License

Parameter

Parameter	Description
base_dir	the base directory
uri	the URI

Return

URI the resolved URI

Declaration

public static URI resolveURI(File base_dir, URI uri) 

Method Source Code

//package com.java2s;
/*// w  w w .  jav a2s  . c om
 * Copyright 2013 Johns Hopkins University
 *
 * 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.io.File;

import java.net.URI;

public class Main {
    /**
     * If the uri has a file scheme, return a new absolute file url joining it
     * to the base directory. Otherwise return the uri.
     * 
     * @param base_dir the base directory
     * @param uri the URI
     * @return URI the resolved URI
     */
    public static URI resolveURI(File base_dir, URI uri) {
        StringBuilder path = new StringBuilder();

        if (uri.getHost() != null) {
            path.append(uri.getHost());
        }

        if (uri.getPath() != null) {
            path.append(uri.getPath());
        }

        if (uri.getScheme().equals("file")) {
            return new File(base_dir, path.toString()).toURI();
        }

        return uri;
    }
}

Related

1. resolvePath(URI root, String subPath)
2. resolvePort(URI uri)
3. resolveReferenceStartingWithQueryString(final URI baseURI, final URI reference)
4. resolveRelativeURI(String baseURI, String uriRef)
5. resolveRelativeURI(URI base, String rel)
6. resolveURI(final String path)
7. resolveURI(String uri)
8. resolveUri(URI base, String rel)
9. resolveUri(URI baseUri, String resourceUriStr)