package org.activityinfo.server.util.logging;
/*
* #%L
* ActivityInfo Server
* %%
* Copyright (C) 2009 - 2013 UNICEF
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
public class LogSlowInterceptor implements MethodInterceptor {
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
LogSlow annotation = invocation.getMethod().getAnnotation(LogSlow.class);
long start = System.currentTimeMillis();
try {
Object result = invocation.proceed();
long elapsed = System.currentTimeMillis() - start;
if (elapsed > annotation.threshold()) {
emitLog(invocation, "Slow execution in " + elapsed + "ms");
}
return result;
} catch (Throwable caught) {
emitLog(invocation, "Slow log (did not complete)");
throw caught;
}
}
private void emitLog(MethodInvocation invocation, String message) {
LogRecord record = new LogRecord(Level.WARNING, message);
String declaringClassName = invocation.getMethod().getDeclaringClass().getName();
record.setSourceClassName(declaringClassName);
record.setSourceMethodName(invocation.getMethod().getName());
Logger.getLogger(declaringClassName).log(record);
}
}