/**
* Copyright (C) 2010 Orbeon, Inc.
*
* This program 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 program 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.
*
* The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
*/
package org.orbeon.oxf.processor;
import org.apache.log4j.Logger;
import org.orbeon.dom.Document;
import org.orbeon.dom.Element;
import org.orbeon.oxf.common.OXFException;
import org.orbeon.oxf.pipeline.api.PipelineContext;
import org.orbeon.oxf.xml.XMLReceiver;
import org.orbeon.oxf.util.LoggerFactory;
import org.orbeon.oxf.xml.SAXStore;
import org.orbeon.oxf.xml.dom4j.Dom4jUtils;
import org.orbeon.oxf.xml.dom4j.LocationData;
import org.orbeon.oxf.xml.dom4j.LocationSAXContentHandler;
import org.xml.sax.SAXException;
public class DebugProcessor extends ProcessorImpl {
static public Logger logger = LoggerFactory.createLogger(DebugProcessor.class);
public DebugProcessor() {
addInputInfo(new ProcessorInputOutputInfo(INPUT_DATA));
addInputInfo(new ProcessorInputOutputInfo(INPUT_CONFIG));
addInputInfo(new ProcessorInputOutputInfo(OUTPUT_DATA));
}
public ProcessorOutput createOutput(final String name) {
final ProcessorOutput output = new ProcessorOutputImpl(DebugProcessor.this, name) {
public void readImpl(PipelineContext pipelineContext, XMLReceiver xmlReceiver) {
try {
if (logger.isInfoEnabled()) {
// Extract information to be logged
final String debugMessage;
final LocationData debugLocationData;
{
final Element configElement = readInputAsOrbeonDom(pipelineContext, INPUT_CONFIG).getRootElement();
debugMessage = configElement.element("message").getText();
if (configElement.element("system-id") != null) {
debugLocationData = new LocationData(configElement.element("system-id").getText(),
Integer.parseInt(configElement.element("line").getText()),
Integer.parseInt(configElement.element("column").getText()));
} else {
debugLocationData = null;
}
}
final Document loggedDocument;
final SAXStore saxStore = new SAXStore();
{
readInputAsSAX(pipelineContext, name, saxStore);
final LocationSAXContentHandler saxContentHandler = new LocationSAXContentHandler();
saxStore.replay(saxContentHandler);
loggedDocument = saxContentHandler.getDocument();
if (loggedDocument.getRootElement() == null)
throw new OXFException("Null document for debug '" + debugMessage + "'");
}
// Send to log4j
logger.info(debugMessage + ":\n"
+ (debugLocationData != null ? debugLocationData.toString() + "\n" : "")
+ Dom4jUtils.domToPrettyString(loggedDocument));
// Set to output
saxStore.replay(xmlReceiver);
} else {
// No debugging, just pass-through
readInputAsSAX(pipelineContext, name, xmlReceiver);
}
} catch (SAXException e) {
throw new OXFException(e);
}
}
};
addOutput(name, output);
return output;
}
}