/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.application.gadget.impl;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.Date;
import org.apache.shindig.common.uri.Uri;
import org.apache.shindig.gadgets.spec.GadgetSpec;
import org.apache.shindig.gadgets.spec.ModulePrefs;
import org.chromattic.api.annotations.FormattedBy;
import org.chromattic.api.annotations.ManyToOne;
import org.chromattic.api.annotations.MappedBy;
import org.chromattic.api.annotations.NamingPrefix;
import org.chromattic.api.annotations.OneToOne;
import org.chromattic.api.annotations.Owner;
import org.chromattic.api.annotations.Path;
import org.chromattic.api.annotations.PrimaryType;
import org.chromattic.api.annotations.Property;
import org.chromattic.ext.format.BaseEncodingObjectFormatter;
import org.chromattic.ext.ntdef.NTFile;
import org.chromattic.ext.ntdef.NTFolder;
import org.chromattic.ext.ntdef.Resource;
import org.exoplatform.commons.xml.XMLDeclarationParser;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
* @version $Revision$
*/
@PrimaryType(name = "app:localgadgetdata")
@FormattedBy(BaseEncodingObjectFormatter.class)
@NamingPrefix("app")
public abstract class LocalGadgetData extends GadgetData {
/** Mime type for gadgets. */
public static final String GADGET_MIME_TYPE = "application/x-google-gadget";
@ManyToOne
public abstract GadgetDefinition getDefinition();
@Property(name = "app:filename")
public abstract String getFileName();
public abstract void setFileName(String fileName);
@OneToOne
@Owner
@MappedBy("app:resources")
public abstract NTFolder getResources();
protected abstract void setResources(NTFolder resources);
@Path
public abstract String getPath();
private NTFile getGadgetContent() {
String fileName = getFileName();
NTFolder resources = getResources();
return resources.getFile(fileName);
}
public void setSource(String gadgetXML) throws Exception {
// Get the definition
GadgetDefinition def = getDefinition();
// Get the related content
GadgetSpec spec = new GadgetSpec(Uri.parse("http://www.gatein.org"), gadgetXML);
ModulePrefs prefs = spec.getModulePrefs();
// detect the encoding declared in the XML source
// note that we do not need to detect the encoding of gadgetXML because
// it is a String and not a stream
String encoding = new XMLDeclarationParser(gadgetXML).parse().get(XMLDeclarationParser.ENCODING);
if (encoding == null || !Charset.isSupported(encoding)) {
throw new UnsupportedEncodingException(encoding);
}
// get the bytes in the declared encoding
byte[] bytes = gadgetXML.getBytes(encoding);
// Update def
def.setDescription(prefs.getDescription());
def.setThumbnail(prefs.getThumbnail().toString()); // Do something better than that
def.setTitle(prefs.getTitle());
def.setReferenceURL(prefs.getTitleUrl().toString());
// Update content
NTFile content = getGadgetContent();
content.setContentResource(new Resource(GADGET_MIME_TYPE, encoding, bytes));
}
public String getSource() throws Exception {
NTFile content = getGadgetContent();
Resource res = content.getContentResource();
String encoding = res.getEncoding();
byte[] bytes = res.getData();
return new String(bytes, encoding);
}
public Date getLastModified() {
NTFile content = getGadgetContent();
return content.getLastModified();
}
private String getGadgetTitle(ModulePrefs prefs, String defaultValue) {
String title = prefs.getDirectoryTitle();
if (title == null || title.trim().length() < 1) {
title = prefs.getTitle();
}
if (title == null || title.trim().length() < 1) {
return defaultValue;
}
return title;
}
}