/*
* 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.wookie.helpers;
import java.io.File;
import java.io.IOException;
import java.io.StringReader;
import java.util.List;
import org.apache.commons.io.FileUtils;
import org.apache.log4j.Logger;
import org.apache.wookie.w3c.IIcon;
import org.apache.wookie.w3c.xml.IElement;
import org.apache.wookie.w3c.W3CWidget;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
/**
* Class used to build a hybrid version of the original config.xml, but with the id attribute updated
* (if the parser did so) and updated icon entries
*/
public class WidgetImportHelper {
static Logger logger = Logger.getLogger(WidgetImportHelper.class.getName());
private static String ERROR_RESPONSE = "<error>unable to read config.xml</error>";
public static String createXMLWidgetDocument(W3CWidget widgetModel, File configXml, String localPath, boolean updateOriginal){
if(configXml.exists()){
String xmlContents = null;
try {
xmlContents = FileUtils.readFileToString(configXml, "UTF-8");
if(updateOriginal){
return updatePaths(widgetModel, xmlContents, localPath);
}
else {
return xmlContents;
}
} catch (IOException e) {
return ERROR_RESPONSE;
}
}else{
return ERROR_RESPONSE;
}
}
private static String updatePaths(W3CWidget widgetModel, String configXml, String localPath){
String updatedConfigXml = null;
try {
SAXBuilder builder = new SAXBuilder();
StringReader reader = new StringReader(configXml);
String id = null;
String generatedId = null;
Document doc = null;
Element tempElement = null;
doc = builder.build(reader);
Element widget = doc.getRootElement();
id = widget.getAttributeValue("id");
generatedId = widgetModel.getIdentifier();
if(id == null || !id.equals(generatedId)){
widget.setAttribute("id", widgetModel.getIdentifier());
}
int idx = 0;
tempElement = widget.getChild("icon", widget.getNamespace());
if(tempElement != null){
idx = widget.indexOf(tempElement);
//remove original icon entries
widget.removeChildren("icon", widget.getNamespace());
// get the model icons
}
List<IIcon> generatedIcons = widgetModel.getIcons();
for(IIcon icon : generatedIcons){
String parserSrc = icon.getSrc();
icon.setSrc(localPath + parserSrc);
widget.addContent(idx++ , ((IElement) icon).toXml());
icon.setSrc(parserSrc);
}
XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());
updatedConfigXml = outputter.outputString(doc);
} catch (JDOMException e) {
logger.error("Error parsing config.", e);
} catch (IOException e) {
logger.error("Problem building parser config.", e);
}
return updatedConfigXml;
}
}