/**
* Copyright (C) 2012 Ryan W Tenney (ryan@10e.us)
*
* 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.config.annotation;
import org.springframework.aop.framework.ProxyConfig;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ImportAware;
import org.springframework.context.annotation.Role;
import org.springframework.core.annotation.AnnotationAttributes;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.util.Assert;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.health.HealthCheckRegistry;
import com.ryantenney.metrics.spring.MetricsBeanPostProcessorFactory;
/**
* This is the main class providing the configuration behind the Metrics Java config.
* It is typically imported by adding {@link EnableMetrics @EnableMetrics} to an
* application {@link Configuration @Configuration} class.
*
* @see MetricsConfigurer
* @see MetricsConfigurerAdapter
* @author Ryan Tenney
* @since 3.0
*/
public class MetricsConfigurationSupport implements ImportAware {
private final Object lock = new Object();
private volatile MetricRegistry metricRegistry;
private volatile HealthCheckRegistry healthCheckRegistry;
private ProxyConfig proxyConfig;
@Override
public void setImportMetadata(AnnotationMetadata importMetadata) {
final AnnotationAttributes enableMetrics = AnnotationAttributes.fromMap(importMetadata.getAnnotationAttributes(EnableMetrics.class.getName(), false));
Assert.notNull(enableMetrics, "@" + EnableMetrics.class.getSimpleName() + " is not present on importing class " + importMetadata.getClassName());
this.proxyConfig = new ProxyConfig();
this.proxyConfig.setExposeProxy(enableMetrics.getBoolean("exposeProxy"));
this.proxyConfig.setProxyTargetClass(enableMetrics.getBoolean("proxyTargetClass"));
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor exceptionMeteredAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.exceptionMetered(getMetricRegistry(), proxyConfig);
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor meteredAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.metered(getMetricRegistry(), proxyConfig);
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor timedAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.timed(getMetricRegistry(), proxyConfig);
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor countedAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.counted(getMetricRegistry(), proxyConfig);
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor gaugeFieldAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.gaugeField(getMetricRegistry());
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor gaugeMethodAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.gaugeMethod(getMetricRegistry());
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor cachedGaugeAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.cachedGauge(getMetricRegistry());
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor metricAnnotationBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.metric(getMetricRegistry());
}
@Bean
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public BeanPostProcessor healthCheckBeanPostProcessor() {
return MetricsBeanPostProcessorFactory.healthCheck(getHealthCheckRegistry());
}
protected MetricRegistry getMetricRegistry() {
if (metricRegistry == null) {
synchronized (lock) {
if (metricRegistry == null) {
metricRegistry = new MetricRegistry();
}
}
}
return metricRegistry;
}
protected HealthCheckRegistry getHealthCheckRegistry() {
if (healthCheckRegistry == null) {
synchronized (lock) {
if (healthCheckRegistry == null) {
healthCheckRegistry = new HealthCheckRegistry();
}
}
}
return healthCheckRegistry;
}
}