/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <stefano@apache.org>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.components.persistence;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.avalon.framework.activity.Initializable;
import org.apache.avalon.framework.component.Component;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
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.cocoon.components.source.SourceUtil;
import org.apache.cocoon.portal.util.ReferenceFieldHandler;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceResolver;
import org.exolab.castor.mapping.Mapping;
import org.exolab.castor.mapping.MappingException;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.Unmarshaller;
import org.xml.sax.InputSource;
/**
* This is a component that converts the profiles (= object tree) to XML and vice-versa
* using Castor.
*
* In order to work properly the methods provided by this interface require some
* parameters:
* objectmap : containing a map of objects for resolving references during load
* profiletype: specifying the mapping (this is one of layout, copletinstancedata, copletdata or copletbasedate
*
* @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
* @author <a href="mailto:volker.schmitt@basf-it-services.com">Volker Schmitt</a>
* @author <a href="mailto:bluetkemeier@s-und-n.de">Björn Lütkemeier</a>
*
* @version CVS $Id: CastorSourceConverter.java,v 1.2 2003/10/20 13:36:41 cziegeler Exp $
*/
public class CastorSourceConverter
extends AbstractLogEnabled
implements Component, Serviceable, Configurable, Initializable, ThreadSafe {
public static final String ROLE = CastorSourceConverter.class.getName();
private Map mappingSources = new HashMap();
private ServiceManager manager;
private Map mappings = new HashMap();
public Object getObject(InputStream stream, Map parameters) throws ConverterException {
try {
ReferenceFieldHandler.setObjectMap((Map)parameters.get("objectmap"));
Unmarshaller unmarshaller = new Unmarshaller((Mapping)this.mappings.get(parameters.get("profiletype")));
Object result = unmarshaller.unmarshal(new InputSource(stream));
stream.close();
return result;
} catch (MappingException e) {
throw new ConverterException("can't create Unmarshaller", e);
} catch (Exception e) {
throw new ConverterException(e.getMessage(), e);
}
}
public void storeObject(OutputStream stream, Map parameters, Object object) throws ConverterException {
Writer writer = new OutputStreamWriter(stream);
try {
Marshaller marshaller = new Marshaller( writer );
marshaller.setMapping((Mapping)this.mappings.get(parameters.get(parameters.get("profiletype"))));
marshaller.marshal(object);
writer.close();
} catch (MappingException e) {
throw new ConverterException("can't create Unmarshaller", e);
} catch (Exception e) {
throw new ConverterException(e.getMessage(), e);
}
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
*/
public void service(ServiceManager manager) throws ServiceException {
this.manager = manager;
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
*/
public void configure(Configuration config) throws ConfigurationException {
Configuration[] children = config.getChildren("mapping-source");
for (int i=0; i<children.length; i++) {
Configuration mappingSource = children[i];
this.mappingSources.put(mappingSource.getAttribute("source"), mappingSource.getValue());
}
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.activity.Initializable#initialize()
*/
public void initialize() throws Exception {
SourceResolver resolver = (SourceResolver) manager.lookup(SourceResolver.ROLE);
Source source = null;
try {
Entry entry;
String name;
String mappingSource;
Mapping mapping;
Iterator iterator = this.mappingSources.entrySet().iterator();
while (iterator.hasNext()) {
entry = (Map.Entry)iterator.next();
name = (String)entry.getKey();
mappingSource = (String)entry.getValue();
source = resolver.resolveURI(mappingSource);
mapping = new Mapping();
mapping.loadMapping(SourceUtil.getInputSource(source));
this.mappings.put(name, mapping);
}
} finally {
if (source != null) {
resolver.release(source);
}
manager.release(resolver);
}
}
}