com.ryantenney.metrics.spring.MeteredMethodInterceptor Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of metrics-spring Show documentation

Spring integration for Coda Hale's Metrics Library

There is a newer version: 3.1.3

/**
 * Copyright (C) 2012 Ryan W Tenney ([email protected])
 *
 * 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 com.ryantenney.metrics.spring;

import java.lang.reflect.Method;

import org.aopalliance.aop.Advice;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.Pointcut;
import org.springframework.aop.support.annotation.AnnotationMatchingPointcut;
import org.springframework.util.ReflectionUtils.MethodFilter;

import com.codahale.metrics.Meter;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.annotation.Metered;

import static com.ryantenney.metrics.spring.AnnotationFilter.PROXYABLE_METHODS;

class MeteredMethodInterceptor extends AbstractMetricMethodInterceptor {

	public static final Class ANNOTATION = Metered.class;
	public static final Pointcut POINTCUT = new AnnotationMatchingPointcut(null, ANNOTATION);
	public static final MethodFilter METHOD_FILTER = new AnnotationFilter(ANNOTATION, PROXYABLE_METHODS);

	public MeteredMethodInterceptor(final MetricRegistry metricRegistry, final Class targetClass) {
		super(metricRegistry, targetClass, ANNOTATION, METHOD_FILTER);
	}

	@Override
	protected Object invoke(MethodInvocation invocation, Meter meter, Metered annotation) throws Throwable {
		meter.mark();
		return invocation.proceed();
	}

	@Override
	protected Meter buildMetric(MetricRegistry metricRegistry, String metricName, Metered annotation) {
		return metricRegistry.meter(metricName);
	}

	@Override
	protected String buildMetricName(Class targetClass, Method method, Metered annotation) {
		return Util.forMeteredMethod(targetClass, method, annotation);
	}

	static AdviceFactory adviceFactory(final MetricRegistry metricRegistry) {
		return new AdviceFactory() {
			@Override
			public Advice getAdvice(Object bean, Class targetClass) {
				return new MeteredMethodInterceptor(metricRegistry, targetClass);
			}
		};
	}

}