Diagnostic Properties implementation

DiagnosticProperties.java

package com.gm.gbrd.prefs;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Properties;

/**
 * This class is very very resource intensive and should only be used for diagnostic purposes, it should never
 * be used in production code, Thread.currentThread.getStackTrace() is a very expensive operation, this was created
 * only to help identify what, where and when all the various properties files in an application are being loaded.
 */
public class DiagnosticProperties extends Properties
{
    private static final Logger LOG;

    static
    {
        LOG = LoggerFactory.getLogger(DiagnosticProperties.class.getName());

    }

    @Override
    public String getProperty(final String key)
    {
        return this.getProperty(key, null);
    }

    @Override
    public String getProperty(final String key, final String defaultValue)
    {
        final String value = super.getProperty(key);
        final StackTraceElement[] st = Thread.currentThread().getStackTrace();
        final String msg = String.format("%s.%s.get(%s) = %s",st[3].getClassName(), st[3].getMethodName(), key, value);
        LOG.info(msg);

        return value == null ? defaultValue : value;
    }
}