Java URI to Relative URI getRelativeURI(URI repositoryXml, URI bundleJar)

Description

get Relative URI

License

Apache License

Parameter

Parameter	Description
repositoryXml	URI pointing to repository.xml, or directory containing it
bundleJar	URI pointing to bundle jarfile

Return

relative URI to bundle jarfile

Declaration

public static URI getRelativeURI(URI repositoryXml, URI bundleJar) 

Method Source Code

//package com.java2s;
/*//from ww w .  j a v  a2s  .  c o m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.URI;

public class Main {
    private static final String DOT_XML = ".xml";

    /**
     * @param repositoryXml URI pointing to repository.xml, or directory containing it
     * @param bundleJar URI pointing to bundle jarfile
     * @return relative URI to bundle jarfile
     */
    public static URI getRelativeURI(URI repositoryXml, URI bundleJar) {
        try {
            String repositoryPath = repositoryXml.getPath();
            if (repositoryPath.toLowerCase().endsWith(DOT_XML)) {
                // remove filename to get containing directory
                int dirnameIndex = repositoryPath.lastIndexOf('/');
                repositoryPath = repositoryPath.substring(0, dirnameIndex);
            }

            URI rootURI = new URI(null, repositoryPath, null);
            URI localURI = new URI(null, bundleJar.getPath(), null);

            return rootURI.relativize(localURI);
        } catch (Exception e) {
            return bundleJar;
        }
    }
}

Related

1. getRelativePath(URI base, File file)
2. getRelativePath(URI targetURI, URI baseURI)
3. getRelativePath(URI targetUri, URI baseUri)
4. getRelativeURI(String href)
5. getRelativeURI(URI base, URI uri)
6. getRelativeUri(URI rootURI, File file)
7. getRelativeURI(URI uri, URI relativeTo)
8. relativeConfig(URI uri)
9. relativeFileToURI(File file)