/*
* 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.coplets.basket;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.environment.wrapper.RequestParameters;
import org.apache.cocoon.portal.PortalService;
import org.apache.cocoon.portal.coplets.basket.events.UploadItemEvent;
import org.apache.cocoon.portal.event.Event;
import org.apache.cocoon.xml.AttributesImpl;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* This transformer supports the basket feature. It can generate links to
* add content and to upload files into the basket.
*
* @version $Id: BasketTransformer.java 47047 2004-09-22 12:27:27Z vgritsenko $
*/
public class FolderTransformer extends AbstractBasketTransformer {
/** Element to upload an item */
protected static final String UPLOAD_ITEM_ELEMENT = "upload-item";
/** Element for the upload form */
protected static final String UPLOAD_FORM_ELEMENT = "upload-form";
/** Upload element list */
protected List uploadElements = new ArrayList();
/* (non-Javadoc)
* @see org.apache.avalon.excalibur.pool.Recyclable#recycle()
*/
public void recycle() {
this.uploadElements.clear();
super.recycle();
}
/* (non-Javadoc)
* @see org.apache.cocoon.transformation.AbstractSAXTransformer#endTransformingElement(java.lang.String, java.lang.String, java.lang.String)
*/
public void endTransformingElement(String uri, String name, String raw)
throws ProcessingException, IOException, SAXException {
if ( UPLOAD_ITEM_ELEMENT.equals(name) ) {
this.endElement("", "input", "input");
} else if ( UPLOAD_FORM_ELEMENT.equals(name) ) {
this.endElement("", "form", "form");
this.uploadElements = new ArrayList();
}
}
/* (non-Javadoc)
* @see org.apache.cocoon.transformation.AbstractSAXTransformer#startTransformingElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void startTransformingElement(String uri, String name,
String raw, Attributes attr)
throws ProcessingException, IOException, SAXException {
if ( UPLOAD_ITEM_ELEMENT.equals(name) ) {
this.uploadElements.add(attr.getValue("name"));
this.startElement("", "input", "input", attr);
} else if ( UPLOAD_FORM_ELEMENT.equals(name) ) {
AttributesImpl ai = new AttributesImpl(attr);
PortalService service = null;
String parameters;
try {
service = (PortalService)this.manager.lookup(PortalService.ROLE);
Event e = new UploadItemEvent(this.basketManager.getFolder(), this.uploadElements);
parameters = service.getComponentManager().getLinkService().getLinkURI(e);
int pos = parameters.indexOf('?');
ai.addCDATAAttribute("action", parameters.substring(0, pos));
parameters = parameters.substring(pos+1);
} catch (ServiceException se) {
throw new SAXException("Unable to lookup portal service.", se);
} finally {
this.manager.release(service);
}
this.startElement("", "form", "form", ai);
if ( parameters != null && parameters.length() > 0 ) {
// create hidden input fields
RequestParameters pars = new RequestParameters(parameters);
Enumeration enumPars = pars.getParameterNames();
while ( enumPars.hasMoreElements() ) {
String pName = (String)enumPars.nextElement();
String pValue = pars.getParameter(pName);
AttributesImpl hiddenAttrs = new AttributesImpl();
hiddenAttrs.addCDATAAttribute("type", "hidden");
hiddenAttrs.addCDATAAttribute("name", pName);
hiddenAttrs.addCDATAAttribute("value", pValue);
this.startElement("", "input", "input", hiddenAttrs);
this.endElement("", "input", "input");
}
}
}
}
}