| /* |
| * 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.commons.vfs2.provider; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLStreamHandler; |
| |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileSystemOptions; |
| |
| /** |
| * A default URL stream handler that will work for most file systems. |
| */ |
| public class DefaultURLStreamHandler extends URLStreamHandler { |
| private final VfsComponentContext context; |
| private final FileSystemOptions fileSystemOptions; |
| |
| public DefaultURLStreamHandler(final VfsComponentContext context) { |
| this(context, null); |
| } |
| |
| public DefaultURLStreamHandler(final VfsComponentContext context, final FileSystemOptions fileSystemOptions) { |
| this.context = context; |
| this.fileSystemOptions = fileSystemOptions; |
| } |
| |
| @Override |
| protected URLConnection openConnection(final URL url) throws IOException { |
| final FileObject entry = context.resolveFile(url.toExternalForm(), fileSystemOptions); |
| return new DefaultURLConnection(url, entry.getContent()); |
| } |
| |
| @Override |
| protected void parseURL(final URL u, final String spec, final int start, final int limit) { |
| try { |
| final FileObject old = context.resolveFile(u.toExternalForm(), fileSystemOptions); |
| |
| final FileObject newURL; |
| if (start > 0 && spec.charAt(start - 1) == ':') { |
| newURL = context.resolveFile(old, spec, fileSystemOptions); |
| } else if (old.isFile() && old.getParent() != null) { |
| // for files we have to resolve relative |
| newURL = old.getParent().resolveFile(spec); |
| } else { |
| newURL = old.resolveFile(spec); |
| } |
| |
| final String url = newURL.getName().getURI(); |
| final StringBuilder filePart = new StringBuilder(); |
| final String protocolPart = UriParser.extractScheme(context.getFileSystemManager().getSchemes(), url, filePart); |
| |
| setURL(u, protocolPart, "", -1, null, null, filePart.toString(), null, null); |
| } catch (final FileSystemException fse) { |
| // This is rethrown to MalformedURLException in URL anyway |
| throw new RuntimeException(fse.getMessage()); |
| } |
| } |
| |
| @Override |
| protected String toExternalForm(final URL u) { |
| return u.getProtocol() + ":" + u.getFile(); |
| } |
| } |