| /* |
| * 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.felix.connect; |
| |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URISyntaxException; |
| import java.net.URL; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.jboss.vfs.VFS; |
| import org.jboss.vfs.VirtualFile; |
| import org.jboss.vfs.VirtualFileVisitor; |
| import org.jboss.vfs.VisitorAttributes; |
| |
| /** |
| * Loads the content of a bundle using JBoss VFS protocol. |
| */ |
| public class VFSRevision implements Revision |
| { |
| private final URL m_url; |
| private final long m_lastModified; |
| private final Map<String, VirtualFile> m_entries = new HashMap<String, VirtualFile>(); |
| |
| public VFSRevision(URL url, long lastModified) |
| { |
| m_url = url; |
| m_lastModified = lastModified; |
| } |
| |
| public long getLastModified() |
| { |
| return m_lastModified; |
| } |
| |
| public Enumeration<String> getEntries() |
| { |
| try |
| { |
| loadEntries(); // lazily load entries |
| return Collections.enumeration(m_entries.keySet()); |
| } |
| catch (URISyntaxException e) |
| { |
| e.printStackTrace(); |
| return null; |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(); |
| return null; |
| } |
| } |
| |
| public URL getEntry(String entryName) |
| { |
| try |
| { |
| loadEntries(); |
| VirtualFile vfile = m_entries.get(entryName); |
| return vfile != null ? vfile.toURL() : null; |
| } |
| catch (MalformedURLException e) |
| { |
| e.printStackTrace(); |
| return null; |
| } |
| catch (URISyntaxException e) |
| { |
| e.printStackTrace(); |
| return null; |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(); |
| return null; |
| } |
| } |
| |
| private synchronized void loadEntries() throws URISyntaxException, IOException |
| { |
| if (m_entries.size() == 0) |
| { |
| final VirtualFile root = VFS.getChild(m_url.toURI()); |
| final String uriPath = m_url.toURI().getPath(); |
| |
| root.visit(new VirtualFileVisitor() |
| { |
| public void visit(VirtualFile vfile) |
| { |
| String entryPath = vfile.getPathName().substring(uriPath.length()); |
| m_entries.put(entryPath, vfile); |
| } |
| |
| public VisitorAttributes getAttributes() |
| { |
| return VisitorAttributes.RECURSE_LEAVES_ONLY; |
| } |
| }); |
| } |
| } |
| } |