platforms/spring-boot/components-starter/camel-lra-starter/src/main/java/org/apache/camel/service/lra/springboot/LraServiceAutoConfiguration.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.service.lra.springboot;

import java.util.HashMap;
import java.util.Map;

import org.apache.camel.CamelContext;
import org.apache.camel.saga.CamelSagaService;
import org.apache.camel.service.lra.LRASagaService;
import org.apache.camel.spring.boot.CamelAutoConfiguration;
import org.apache.camel.spring.boot.util.CamelPropertiesHelper;
import org.apache.camel.spring.boot.util.ConditionalOnCamelContextAndAutoConfigurationBeans;
import org.apache.camel.spring.boot.util.GroupCondition;
import org.apache.camel.util.IntrospectionSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
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.Conditional;
import org.springframework.context.annotation.Configuration;

@Configuration
@Conditional({ConditionalOnCamelContextAndAutoConfigurationBeans.class,
        LraServiceAutoConfiguration.GroupConditions.class})
@AutoConfigureAfter(CamelAutoConfiguration.class)
@EnableConfigurationProperties({LraServiceConfiguration.class})
public class LraServiceAutoConfiguration {

    private static final Logger LOGGER = LoggerFactory
            .getLogger(LraServiceAutoConfiguration.class);

    @Autowired
    private CamelContext camelContext;

    @Autowired
    private LraServiceConfiguration configuration;


    static class GroupConditions extends GroupCondition {
        public GroupConditions() {
            super("camel.service", "camel.service.lra");
        }
    }

    @Bean(name = "lra-service")
    @ConditionalOnMissingBean(CamelSagaService.class)
    @ConditionalOnProperty(value = "camel.service.lra.enabled", havingValue = "true")
    public LRASagaService configureLraSagaService() throws Exception {
        LRASagaService service = new LRASagaService();

        Map<String, Object> parameters = new HashMap<>();
        IntrospectionSupport.getProperties(configuration, parameters, null, false);
        CamelPropertiesHelper.setCamelProperties(camelContext, service, parameters, false);

        camelContext.addService(service);
        return service;
    }
}