components-starter/camel-zipkin-starter/src/main/java/org/apache/camel/zipkin/starter/ZipkinAutoConfiguration.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.zipkin.starter;

import org.apache.camel.CamelContext;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.zipkin.ZipkinTracer;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@EnableConfigurationProperties(ZipkinConfigurationProperties.class)
@ConditionalOnProperty(value = "camel.zipkin.enabled", matchIfMissing = true)
public class ZipkinAutoConfiguration {

    @Bean(initMethod = "", destroyMethod = "")
    // Camel handles the lifecycle of this bean
    @ConditionalOnMissingBean(ZipkinTracer.class)
    ZipkinTracer zipkinEventNotifier(CamelContext camelContext,
                                     ZipkinConfigurationProperties config) {

        ZipkinTracer zipkin = new ZipkinTracer();
        zipkin.setHostName(config.getHostName());
        zipkin.setPort(config.getPort());
        zipkin.setRate(config.getRate());
        if (ObjectHelper.isNotEmpty(config.getServiceName())) {
            zipkin.setServiceName(config.getServiceName());
        }
        if (config.getExcludePatterns() != null) {
            zipkin.setExcludePatterns(config.getExcludePatterns());
        }
        if (config.getClientServiceMappings() != null) {
            zipkin.setClientServiceMappings(config.getClientServiceMappings());
        }
        if (config.getServerServiceMappings() != null) {
            zipkin.setServerServiceMappings(config.getServerServiceMappings());
        }
        zipkin.setIncludeMessageBody(config.isIncludeMessageBody());
        zipkin.setIncludeMessageBodyStreams(config.isIncludeMessageBodyStreams());

        // register the bean into CamelContext
        zipkin.init(camelContext);

        return zipkin;
    }

}