/*
* $Id: PrettyLoggingFeature.java 19191 2010-08-25 21:05:23Z tcarlson $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.module.cxf.feature;
import org.mule.api.MuleException;
import org.mule.module.xml.transformer.XmlPrettyPrinter;
import org.mule.util.StringUtils;
import org.apache.cxf.Bus;
import org.apache.cxf.feature.LoggingFeature;
import org.apache.cxf.interceptor.InterceptorProvider;
/**
* Same as the standard CXF LoggingFeature, but with pretty-printed XML
* for the message payload.
*/
public class PrettyLoggingFeature extends LoggingFeature
{
@Override
protected void initializeProvider(InterceptorProvider provider, Bus bus)
{
provider.getInInterceptors().add(new PrettyLoggingInInterceptor(getLimit()));
provider.getOutInterceptors().add(new PrettyLoggingOutInterceptor(getLimit()));
}
/**
* Takes the log output from the standard CXF LoggingInterceptor,
* disassembles it, pretty-prints the XML payload, then puts it all back
* together again.
*/
protected static String formatXmlPayload(String originalLogString)
{
String[] lines = originalLogString.split("\n");
// Figure out which line has the payload on it
int payloadLine = -1;
for (int i=0; i<lines.length; ++i)
{
if (lines[i].startsWith("Payload: "))
{
payloadLine = i;
break;
}
}
if (payloadLine == -1)
{
System.err.println("Could not find a line which begins with 'Payload: '");
return originalLogString;
}
// Extract the XML payload and format it
String payload = lines[payloadLine];
String xml = StringUtils.substringAfter(payload, "Payload: ");
XmlPrettyPrinter pp = new XmlPrettyPrinter();
try
{
xml = (String) pp.transform(xml);
}
catch (MuleException e)
{
System.err.println(e.getMessage());
}
// Replace the payload line with the formatted XML and put it all back together again
lines[payloadLine] = "Payload: \n" + xml;
return StringUtils.join(lines, "\n");
}
}