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/*
 * Copyright 2013-2019 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.data.cassandra.repository.config;

import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Collections;
import java.util.Optional;

import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.data.cassandra.config.DefaultBeanNames;
import org.springframework.data.cassandra.core.mapping.Table;
import org.springframework.data.cassandra.repository.CassandraRepository;
import org.springframework.data.cassandra.repository.support.CassandraRepositoryFactoryBean;
import org.springframework.data.repository.config.AnnotationRepositoryConfigurationSource;
import org.springframework.data.repository.config.RepositoryConfigurationExtension;
import org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport;
import org.springframework.data.repository.config.XmlRepositoryConfigurationSource;
import org.springframework.data.repository.core.RepositoryMetadata;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;

/**
 * {@link RepositoryConfigurationExtension} for Cassandra.
 *
 * @author Alex Shvid
 * @author Mark Paluch
 * @author Christoph Strobl
 * @author Mateusz Szymczak
 */
public class CassandraRepositoryConfigurationExtension extends RepositoryConfigurationExtensionSupport {

	private static final String CASSANDRA_TEMPLATE_REF = "cassandra-template-ref";

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#getModuleName()
	 */
	@Override
	public String getModuleName() {
		return "Cassandra";
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#getModulePrefix()
	 */
	@Override
	protected String getModulePrefix() {
		return "cassandra";
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtension#getRepositoryFactoryClassName()
	 */
	@Override
	public String getRepositoryFactoryBeanClassName() {
		return CassandraRepositoryFactoryBean.class.getName();
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#postProcess(org.springframework.beans.factory.support.BeanDefinitionBuilder, org.springframework.data.repository.config.XmlRepositoryConfigurationSource)
	 */
	@Override
	public void postProcess(BeanDefinitionBuilder builder, XmlRepositoryConfigurationSource config) {

		Element element = config.getElement();

		String cassandraTemplateRef = Optional.ofNullable(element.getAttribute(CASSANDRA_TEMPLATE_REF)) //
				.filter(StringUtils::hasText) //
				.orElse(DefaultBeanNames.DATA_TEMPLATE);

		builder.addPropertyReference("cassandraTemplate", cassandraTemplateRef);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#postProcess(org.springframework.beans.factory.support.BeanDefinitionBuilder, org.springframework.data.repository.config.AnnotationRepositoryConfigurationSource)
	 */
	@Override
	public void postProcess(BeanDefinitionBuilder builder, AnnotationRepositoryConfigurationSource config) {

		String cassandraTemplateRef = config.getAttributes().getString("cassandraTemplateRef");

		if (StringUtils.hasText(cassandraTemplateRef)) {
			builder.addPropertyReference("cassandraTemplate", cassandraTemplateRef);
		}
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#getIdentifyingAnnotations()
	 */
	@Override
	protected Collection> getIdentifyingAnnotations() {
		return Collections.singleton(Table.class);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#getIdentifyingTypes()
	 */
	@Override
	protected Collection> getIdentifyingTypes() {
		return Collections.singleton(CassandraRepository.class);
	}

	/*
	 * (non-Javadoc)
	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#useRepositoryConfiguration(org.springframework.data.repository.core.RepositoryMetadata)
	 */
	@Override
	protected boolean useRepositoryConfiguration(RepositoryMetadata metadata) {
		return !metadata.isReactiveRepository();
	}
}




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