de.rahn.finances.services.securities.SecuritiesServiceMetricsAspect.java Source code

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Here is the source code for de.rahn.finances.services.securities.SecuritiesServiceMetricsAspect.java

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/*
 * Copyright 2011-2016 Frank W. Rahn and the project authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package de.rahn.finances.services.securities;

import static java.lang.System.currentTimeMillis;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.metrics.CounterService;
import org.springframework.boot.actuate.metrics.GaugeService;
import org.springframework.stereotype.Component;

import de.rahn.finances.services.SecuritiesService;

/**
 * Ein Aspekt fr die Metriken des {@link SecuritiesService}.
 *
 * @author Frank W. Rahn
 */
@Component
@Aspect
public class SecuritiesServiceMetricsAspect {

    /** Der Prefix fr die Aufrufzhler. */
    public static final String PREFIX_METRICNAME_CALLS = "counter.securities.services.securities.invoked";

    /** Der Prefix fr die Aufrufzhler. */
    public static final String PREFIX_METRICNAME_CALL = "counter.securities.services.securities.invoke.";

    /** Der Prefix fr die Aufrufrate. */
    public static final String PREFIX_METRICNAME_EVENTS = "meter.securities.services.securities.used";

    /** Der Prefix fr die Aufrufrate. */
    public static final String PREFIX_METRICNAME_TIMER = "timer.securities.services.securities.getsecurities.executed";

    /** Der Prefix fr die Fehlerzhler. */
    public static final String PREFIX_METRICNAME_ERRORS = "counter.securities.services.securities.failed";

    /** Der Prefix fr die Fehlerzhler. */
    public static final String PREFIX_METRICNAME_ERROR = "counter.securities.services.securities.failure.";

    /** Spring Boot Service fr Counter und Meter. */
    @Autowired
    private CounterService counterService;

    /** Spring Boot Service fr Guage, Timer und Histogram. */
    @Autowired
    private GaugeService gaugeService;

    /**
     * Fr den Zugriff auf die Schnittstelle.
     */
    @Pointcut("this(de.rahn.finances.services.SecuritiesService)")
    private void onSecuritiesService() {
    }

    /**
     * Zhle die erfolgreichen lesenden Zugriffe.
     */
    @AfterReturning(pointcut = "execution(* de.rahn.finances.services.SecuritiesService.get*(..))")
    public void afterCallingSecuritiesServiceRead() {
        counterService.increment(PREFIX_METRICNAME_EVENTS);
        counterService.increment(PREFIX_METRICNAME_CALLS);
        counterService.increment(PREFIX_METRICNAME_CALL + "read");
    }

    /**
     * Zhle die erfolgreichen verndernden Zugriffe.
     */
    @AfterReturning(pointcut = "execution(* de.rahn.finances.services.SecuritiesService.save(..)) || execution(* de.rahn.finances.services.SecuritiesService.delete(..))")
    public void afterCallingSecuritiesServiceModified() {
        counterService.increment(PREFIX_METRICNAME_EVENTS);
        counterService.increment(PREFIX_METRICNAME_CALLS);
        counterService.increment(PREFIX_METRICNAME_CALL + "modified");
    }

    /**
     * Zhle alle geworfenen Ausnahmen.
     */
    @AfterThrowing(pointcut = "onSecuritiesService()", throwing = "exception")
    public void afterThrowsException(Exception exception) {
        counterService.increment(PREFIX_METRICNAME_ERRORS);
        counterService.increment(PREFIX_METRICNAME_ERROR + exception.getClass().getSimpleName().toLowerCase());
    }

    @Around("execution(org.springframework.data.domain.Page de.rahn.finances.services.SecuritiesService.getSecurities(org.springframework.data.domain.Pageable))")
    public Object doGetSecuritiesTimer(ProceedingJoinPoint joinPoint) throws Throwable {
        long start = currentTimeMillis();

        Object returnValue = joinPoint.proceed();

        gaugeService.submit(PREFIX_METRICNAME_TIMER, currentTimeMillis() - start);

        return returnValue;
    }

}