org.springframework.boot.actuate.health.RabbitHealthIndicator.java Source code

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Here is the source code for org.springframework.boot.actuate.health.RabbitHealthIndicator.java

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/*
 * Copyright 2012-2014 the original author or 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 org.springframework.boot.actuate.health;

import java.util.Map;

import com.rabbitmq.client.Channel;

import org.springframework.amqp.rabbit.core.ChannelCallback;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.util.Assert;

/**
 * Simple implementation of a {@link HealthIndicator} returning status information for the
 * RabbitMQ messaging system.
 *
 * @author Christian Dupuis
 * @since 1.1.0
 */
public class RabbitHealthIndicator extends AbstractHealthIndicator {

    private final RabbitTemplate rabbitTemplate;

    public RabbitHealthIndicator(RabbitTemplate rabbitTemplate) {
        Assert.notNull(rabbitTemplate, "RabbitTemplate must not be null.");
        this.rabbitTemplate = rabbitTemplate;
    }

    @Override
    protected void doHealthCheck(Health.Builder builder) throws Exception {
        builder.up().withDetail("version", getVersion());
    }

    private String getVersion() {
        return this.rabbitTemplate.execute(new ChannelCallback<String>() {
            @Override
            public String doInRabbit(Channel channel) throws Exception {
                Map<String, Object> serverProperties = channel.getConnection().getServerProperties();
                return serverProperties.get("version").toString();
            }
        });
    }

}