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Spring configuration for the official IBM MQ library for Java

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/*
 * Copyright © 2018 IBM Corp. All rights reserved.
 *
 * 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.ibm.mq.spring.boot;

import java.util.List;

import javax.jms.ConnectionFactory;

import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.jms.XAConnectionFactoryWrapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.ibm.mq.jms.MQXAConnectionFactory;

/**
 * Configuration for IBM MQ XA {@link ConnectionFactory}.
 * The MQXAConnectionFactory is a subclass of MQConnectionFactory.
 */
@Configuration
@ConditionalOnBean(XAConnectionFactoryWrapper.class)
@ConditionalOnMissingBean(ConnectionFactory.class)

class MQXAConnectionFactoryConfiguration {
  @Bean
  public MQXAConnectionFactory jmsConnectionFactory(MQConfigurationProperties properties,
      ObjectProvider> factoryCustomizers) {
    return new MQConnectionFactoryFactory(properties, factoryCustomizers.getIfAvailable()).createConnectionFactory(MQXAConnectionFactory.class);
  }
}