/*
* Copyright (c) 2009, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.ejb.packaging;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Enumeration;
import java.util.jar.JarFile;
import java.util.jar.JarInputStream;
import java.util.zip.ZipEntry;
import org.hibernate.ejb.internal.EntityManagerMessageLogger;
import org.jboss.logging.Logger;
/**
* Work on a JAR that can be accessed through a File
*
* @author Emmanuel Bernard
*/
public class FileZippedJarVisitor extends AbstractJarVisitor {
private static final EntityManagerMessageLogger LOG = Logger.getMessageLogger(EntityManagerMessageLogger.class,
FileZippedJarVisitor.class.getName());
private String entry;
public FileZippedJarVisitor(String fileName, Filter[] filters) {
super( fileName, filters );
}
public FileZippedJarVisitor(URL url, Filter[] filters, String entry) {
super( url, filters );
this.entry = entry;
}
@Override
protected void doProcessElements() throws IOException {
JarFile jarFile;
try {
String filePart = jarUrl.getFile();
if ( filePart != null && filePart.indexOf( ' ' ) != -1 ) {
//unescaped (from the container), keep as is
jarFile = new JarFile( jarUrl.getFile() );
}
else {
jarFile = new JarFile( jarUrl.toURI().getSchemeSpecificPart() );
}
}
catch (IOException ze) {
LOG.unableToFindFile(jarUrl, ze);
return;
}
catch (URISyntaxException e) {
LOG.malformedUrlWarning(jarUrl, e);
return;
}
if ( entry != null && entry.length() == 1 ) entry = null; //no entry
if ( entry != null && entry.startsWith( "/" ) ) entry = entry.substring( 1 ); //remove '/' header
Enumeration<? extends ZipEntry> entries = jarFile.entries();
while ( entries.hasMoreElements() ) {
ZipEntry zipEntry = entries.nextElement();
String name = zipEntry.getName();
if ( entry != null && ! name.startsWith( entry ) ) continue; //filter it out
if ( !zipEntry.isDirectory() ) {
if ( name.equals( entry ) ) {
//exact match, might be a nested jar entry (ie from jar:file:..../foo.ear!/bar.jar)
/*
* This algorithm assumes that the zipped file is only the URL root (including entry), not just any random entry
*/
InputStream is = null;
try {
is = new BufferedInputStream( jarFile.getInputStream( zipEntry ) );
JarInputStream jis = new JarInputStream( is );
ZipEntry subZipEntry = jis.getNextEntry();
while (subZipEntry != null) {
if ( ! subZipEntry.isDirectory() ) {
//FIXME copy sucks
byte[] entryBytes = JarVisitorFactory.getBytesFromInputStream( jis );
String subname = subZipEntry.getName();
if ( subname.startsWith( "/" ) ) subname = subname.substring( 1 );
addElement(
subname,
new ByteArrayInputStream(entryBytes),
new ByteArrayInputStream(entryBytes)
);
}
subZipEntry = jis.getNextEntry();
}
}
finally {
if ( is != null) is.close();
}
}
else {
//build relative name
if (entry != null) name = name.substring( entry.length() );
if ( name.startsWith( "/" ) ) name = name.substring( 1 );
addElement(
name,
new BufferedInputStream( jarFile.getInputStream( zipEntry ) ),
new BufferedInputStream( jarFile.getInputStream( zipEntry ) )
);
}
}
}
}
}