com.bigdata.counters
Class XMLUtility

java.lang.Object
  com.bigdata.counters.XMLUtility

public class XMLUtility
extends Object

XML (de-)serialization of CounterSets.

Version:

$Id: XMLUtility.java 2265 2009-10-26 12:51:06Z thompsonbry $

Author:

Bryan Thompson

Field Summary

static XMLUtility	INSTANCE
protected static org.apache.log4j.Logger	log

Method Summary

void	readXML(CounterSet root, InputStream is, ICounterSet.IInstrumentFactory instrumentFactory, Pattern filter)
protected void	writeHistory(Writer w, History h, String units) Write the sample values for a History of some ICounter.
void	writeXML(CounterSet root, Writer w, Pattern filter) Serializes an ICounterSet as XML.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

protected static final org.apache.log4j.Logger log

INSTANCE

public static final XMLUtility INSTANCE

Method Detail

writeXML

public void writeXML(CounterSet root,
                     Writer w,
                     Pattern filter)
              throws IOException

Serializes an ICounterSet as XML.

Parameters:

root - The ICounterSet.

w - Where to write the XML.

filter - A filter to be applied to the counters (optional). Only the matched counters will be serialized.

Throws:

IOException

writeHistory

protected void writeHistory(Writer w,
                            History h,
                            String units)
                     throws IOException

Write the sample values for a History of some ICounter.

Parameters:

w -

h -

units -

Throws:

IOException

readXML

public void readXML(CounterSet root,
                    InputStream is,
                    ICounterSet.IInstrumentFactory instrumentFactory,
                    Pattern filter)
             throws IOException,
                    ParserConfigurationException,
                    SAXException

Throws:

IOException

ParserConfigurationException

SAXException