/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.apache.cocoon.components.source.impl;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Map;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.avalon.framework.service.Serviceable;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceException;
import org.apache.excalibur.source.SourceFactory;
import org.apache.excalibur.source.SourceResolver;
/** Implementation of a {@link Source} that gets its content from
* and ZIP archive.
*
* A ZIP source can be reached using the zip:// pseudo-protocol. The syntax is
* zip://myFile.xml@myZip.zip (zip://[file]@[archive])
*
* @author <a href="http://apache.org/~reinhard">Reinhard Poetz</a>
* @version CVS $Id: ZipSourceFactory.java,v 1.2 2004/03/05 10:07:25 bdelacretaz Exp $
* @since 2.1.4
*/
public class ZipSourceFactory extends AbstractLogEnabled
implements SourceFactory, ThreadSafe, Serviceable {
protected ServiceManager manager;
public static String ZIP_SOURCE_SCHEME = "zip:";
public Source getSource(String location, Map parameters)
throws IOException, MalformedURLException {
if ( this.getLogger().isDebugEnabled() ) {
this.getLogger().debug("Processing " + location);
}
// syntax checks
int separatorPos = location.indexOf('@');
if (separatorPos == -1) {
throw new MalformedURLException("@ required in URI: " + location);
}
int protocolEnd = location.indexOf("://");
if (protocolEnd == -1) {
throw new MalformedURLException("URI does not contain '://' : " + location);
}
// get the source of the archive and return the ZipSource passing
// a source retrieved from the SourceResolver
String documentName = location.substring(protocolEnd + 3, separatorPos);
Source archive;
SourceResolver resolver = null;
try {
resolver = (SourceResolver)this.manager.lookup( SourceResolver.ROLE );
archive = resolver.resolveURI(location.substring(separatorPos + 1));
} catch (ServiceException se) {
throw new SourceException("SourceResolver is not available.", se);
} finally {
this.manager.release(resolver);
}
return new ZipSource(archive, documentName);
}
public void release(Source source) {
// not necessary here
}
public void service(ServiceManager manager) throws ServiceException {
this.manager = manager;
}
}