/*
* Copyright 2009 JBoss, a divison Red Hat, Inc
*
* 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.
*/
package org.jboss.errai.common.metadata;
import org.jboss.errai.reflections.vfs.SystemDir;
import org.jboss.errai.reflections.vfs.Vfs;
import org.jboss.errai.reflections.vfs.ZipDir;
import org.jboss.vfs.VirtualFile;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
/**
* An {@link Vfs.UrlType} for deployment archives served through the JBoss virtual filesytem. <br/>
* It simply delegates to {@link SystemDir} and
* {@link ZipDir} respectively
*
* @author Heiko Braun <hbraun@redhat.com>
* @author Mike Brock <cbrock@redhat.com>
*/
public class VfsUrlType implements Vfs.UrlType {
protected static final Logger log = LoggerFactory.getLogger(VfsUrlType.class);
final static boolean jbossAS;
final static String VFS = "vfs";
final static String VFSZIP = "vfszip";
final static String VFSFILE = "vfsfile";
static {
boolean jbossFound;
try {
Class.forName("org.jboss.vfs.VirtualFile");
jbossFound = true;
}
catch (ClassNotFoundException e) {
jbossFound = false;
}
jbossAS = jbossFound;
}
public boolean matches(URL url) {
return url.getProtocol().equals(VFS)
|| url.getProtocol().equals(VFSZIP)
|| url.getProtocol().equals(VFSFILE);
}
public Vfs.Dir createDir(URL url) {
// Create non VFS Url
File deployment = PackagingUtil.identifyDeployment(url);
if (null == deployment)
throw new RuntimeException("Unable identify deployment file for: " + url);
File file = deployment.getAbsoluteFile();
try {
if (jbossAS) {
try {
if (url.getContent() instanceof VirtualFile) {
return new JBossVfsDir(url);
}
}
catch (IOException e) {
throw new RuntimeException("error reading from VFS", e);
}
}
URL targetURL = file.toURI().toURL();
// delegate unpacked archives to SystemDir handler
if (deployment.isDirectory())
return new SystemDir(targetURL);
// if it's a file delegate to ZipDir handler
return new ZipDir(targetURL);
}
catch (MalformedURLException e) {
throw new RuntimeException("Invalid URL", e);
}
}
}