ProfilerControllerInterceptor.java

/*******************************************************************************
 * Copyright (c) 2015 IBH SYSTEMS GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/
package org.eclipse.packagedrone.web.controller;

import java.lang.reflect.Method;
import java.util.function.BiFunction;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.packagedrone.utils.profiler.Profile;
import org.eclipse.packagedrone.utils.profiler.Profile.Handle;
import org.eclipse.packagedrone.web.RequestHandler;

public class ProfilerControllerInterceptor implements ControllerInterceptorProcessor
{
    @Override
    public RequestHandler before ( final Object controller, final Method m, final HttpServletRequest request, final HttpServletResponse response, final BiFunction<HttpServletRequest, HttpServletResponse, RequestHandler> next ) throws Exception
    {
        try ( Handle handle = Profile.start ( makeOperation ( controller, m ) ) )
        {
            return ControllerInterceptorProcessor.super.before ( controller, m, request, response, next );
        }
    }

    private static String makeOperation ( final Object controller, final Method m )
    {
        return String.format ( "%s.%s[Controller]", controller.getClass ().getName (), m.getName () );
    }

}