| /* |
| * 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. |
| */ |
| package org.apache.sling.jcr.classloader.internal.net; |
| |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLStreamHandler; |
| |
| import org.apache.sling.jcr.classloader.internal.ClassLoaderWriterImpl; |
| |
| /** |
| * The <code>JCRURLHandler</code> is the <code>URLStreamHandler</code> for |
| * JCR Repository URLs identified by the scheme <code>jcr</code>. |
| * <p> |
| * JCR Repository URLs have not been standardized yet and may only be created |
| * in the context of an existing <code>Session</code>. Therefore this handler |
| * is not globally available and JCR Repository URLs may only be created through |
| * the factory method. |
| * <p> |
| * This class is not intended to be subclassed or instantiated by clients. |
| * |
| * @see org.apache.sling.jcr.classloader.internal.net.JCRURLConnection |
| */ |
| public class JCRURLHandler extends URLStreamHandler { |
| |
| /** |
| * The scheme for JCR Repository URLs (value is "jcr"). |
| */ |
| private static final String REPOSITORY_SCHEME = "jcr"; |
| |
| /** |
| * The writer provides access to a new session. |
| * |
| * @see #createSession() |
| */ |
| private final ClassLoaderWriterImpl writer; |
| |
| /** |
| * The repository path to the underlying item. |
| */ |
| private final String path; |
| |
| /** |
| * Creates a new JCR Repository URL for the given session and item path. |
| * |
| * @param writer The writer session providing access to the item. |
| * @param path The absolute path to the item. This must be an absolute |
| * path with a leading slash character. If this is <code>null</code> |
| * the root node path - <code>/</code> - is assumed. |
| * |
| * @return The JCR Repository URL |
| * |
| * @throws MalformedURLException If an error occurrs creating the |
| * <code>URL</code> instance. |
| */ |
| public static URL createURL(final ClassLoaderWriterImpl writer, final String path) |
| throws MalformedURLException { |
| return new URL(REPOSITORY_SCHEME, "", -1, |
| path, |
| new JCRURLHandler(writer, path)); |
| } |
| |
| /** |
| * Creates a new instance of the <code>JCRURLHandler</code> with the |
| * given session. |
| * |
| * @param writer The dynamic class loader writer |
| * |
| * @throws NullPointerException if <code>session</code> is <code>null</code>. |
| */ |
| JCRURLHandler(final ClassLoaderWriterImpl writer, final String path) { |
| if (writer == null) { |
| throw new NullPointerException("writer"); |
| } |
| |
| this.writer = writer; |
| this.path = path; |
| } |
| |
| /** |
| * Returns the session supporting this handler. |
| */ |
| ClassLoaderWriterImpl getClassLoaderWriter() { |
| return this.writer; |
| } |
| |
| String getPath() { |
| return this.path; |
| } |
| |
| //---------- URLStreamHandler abstracts ------------------------------------ |
| |
| /** |
| * Gets a connection object to connect to an JCR Repository URL. |
| * |
| * @param url The JCR Repository URL to connect to. |
| * |
| * @return An instance of the {@link JCRURLConnection} class. |
| * |
| * @see JCRURLConnection |
| */ |
| protected URLConnection openConnection(final URL url) { |
| return new JCRURLConnection(url, this); |
| } |
| } |