/*
* 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.cocoon.portal.profile.impl;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.avalon.framework.activity.Disposable;
import org.apache.avalon.framework.component.Component;
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.persistence.CastorSourceConverter;
import org.apache.cocoon.portal.profile.ProfileLS;
import org.apache.cocoon.util.NetUtils;
import org.apache.cocoon.xml.dom.DOMUtil;
import org.apache.excalibur.source.ModifiableSource;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceResolver;
import org.apache.excalibur.source.SourceValidity;
import org.apache.excalibur.xml.sax.SAXParser;
import org.apache.excalibur.xml.xpath.XPathProcessor;
import org.w3c.dom.Element;
/**
* This implementation uses Castor to load/save the profiles.
*
* @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
*
* @version CVS $Id: MapProfileLS.java 433543 2006-08-22 06:22:54Z crossley $
*/
public class MapProfileLS
extends AbstractLogEnabled
implements Component, Serviceable, ProfileLS, ThreadSafe, Disposable {
/** The component manager */
protected ServiceManager manager;
/** The XPath Processor */
protected XPathProcessor xpathProcessor;
/* (non-Javadoc)
* @see org.apache.avalon.framework.activity.Disposable#dispose()
*/
public void dispose() {
if ( this.manager != null ) {
this.manager.release( this.xpathProcessor );
this.xpathProcessor = null;
this.manager = null;
}
}
/* (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;
this.xpathProcessor = (XPathProcessor)this.manager.lookup(XPathProcessor.ROLE);
}
protected String getURI(Map keyMap)
throws Exception {
final StringBuffer buffer = new StringBuffer();
Iterator iter = keyMap.entrySet().iterator();
boolean pars = false;
boolean first = true;
while ( iter.hasNext() ) {
final Map.Entry entry = (Entry) iter.next();
final String append = entry.getValue().toString();
if ( pars ) {
if ( first ) {
first = false;
if ( buffer.toString().indexOf('?') == -1 ) {
buffer.append('?');
} else {
buffer.append('&');
}
} else {
buffer.append('&');
}
buffer.append(entry.getKey().toString());
buffer.append('=');
} else {
if ( !first && !"?".equals(append) ) {
buffer.append('/');
}
first = false;
}
if ( "?".equals(append) ) {
first = true;
pars = true;
} else {
buffer.append(append);
}
}
return buffer.toString();
}
protected StringBuffer getSaveURI(Map keyMap)
throws Exception {
final StringBuffer buffer = new StringBuffer(this.getURI(keyMap));
return buffer;
}
/* (non-Javadoc)
* @see org.apache.cocoon.portal.profile.ProfileLS#loadProfile(java.lang.Object)
*/
public Object loadProfile(Object key, Map parameters)
throws Exception {
final Map keyMap = (Map) key;
final String uri = this.getURI( keyMap );
Source source = null;
CastorSourceConverter converter = null;
SourceResolver resolver = (SourceResolver) this.manager.lookup(SourceResolver.ROLE);
try {
source = resolver.resolveURI(uri);
converter = (CastorSourceConverter) this.manager.lookup(CastorSourceConverter.ROLE);
return converter.getObject(source.getInputStream(), parameters);
} finally {
if ( resolver != null ) {
resolver.release(source);
}
manager.release(converter);
manager.release(resolver);
}
}
/* (non-Javadoc)
* @see org.apache.cocoon.portal.profile.ProfileLS#saveProfile(java.lang.Object, java.lang.Object)
*/
public void saveProfile(Object key, Map parameters, Object profile) throws Exception {
final Map keyMap = (Map) key;
final String uri = this.getURI( keyMap );
// first test: modifiable source?
SourceResolver resolver = null;
CastorSourceConverter converter = null;
Source source = null;
try {
resolver = (SourceResolver) this.manager.lookup(SourceResolver.ROLE);
source = resolver.resolveURI(uri);
if ( source instanceof ModifiableSource ) {
converter = (CastorSourceConverter) this.manager.lookup(CastorSourceConverter.ROLE);
converter.storeObject( ((ModifiableSource)source).getOutputStream(), parameters, profile);
return;
}
} finally {
if ( resolver != null ) {
resolver.release(source);
}
manager.release(converter);
manager.release(resolver);
source = null;
converter = null;
resolver = null;
}
final StringBuffer buffer = this.getSaveURI( keyMap );
SAXParser parser = null;
try {
resolver = (SourceResolver) this.manager.lookup(SourceResolver.ROLE);
converter = (CastorSourceConverter) this.manager.lookup(CastorSourceConverter.ROLE);
ByteArrayOutputStream writer = new ByteArrayOutputStream();
converter.storeObject(writer, parameters, profile);
buffer.append("&content=");
try {
buffer.append(NetUtils.encode(writer.toString(), "utf-8"));
} catch (UnsupportedEncodingException uee) {
// ignore this as utf-8 is always supported
}
source = resolver.resolveURI(buffer.toString());
parser = (SAXParser)this.manager.lookup(SAXParser.ROLE);
Element element = DOMUtil.getDocumentFragment(parser, new InputStreamReader(source.getInputStream())).getOwnerDocument().getDocumentElement();
if (!DOMUtil.getValueOf(element, "descendant::sourceResult/execution", this.xpathProcessor).trim().equals("success")) {
throw new IOException("Could not save profile: "+DOMUtil.getValueOf(element, "descendant::sourceResult/message", this.xpathProcessor));
}
} finally {
if ( resolver != null ) {
resolver.release(source);
}
manager.release(parser);
manager.release(converter);
manager.release(resolver);
}
}
/* (non-Javadoc)
* @see org.apache.cocoon.portal.profile.ProfileLS#getValidity(java.lang.Object)
*/
public SourceValidity getValidity(Object key, Map parameters) {
SourceResolver resolver = null;
Source source = null;
try {
final Map keyMap = (Map) key;
final String uri = this.getURI( keyMap );
resolver = (SourceResolver) this.manager.lookup(SourceResolver.ROLE);
source = resolver.resolveURI(uri);
return source.getValidity();
} catch (Exception e) {
getLogger().warn(e.getMessage(), e);
return null;
} finally {
if (resolver != null) {
resolver.release(source);
}
manager.release(resolver);
}
}
}
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