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Spring Integration JDBC Support
/*
* Copyright 2002-2016 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.integration.jdbc.config;
import org.springframework.beans.BeanMetadataElement;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.config.xml.AbstractPollingInboundChannelAdapterParser;
import org.springframework.integration.config.xml.IntegrationNamespaceUtils;
import org.springframework.integration.jdbc.JdbcPollingChannelAdapter;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
/**
* Parser for {@link org.springframework.integration.jdbc.JdbcPollingChannelAdapter}.
*
* @author Jonas Partner
* @since 2.0
*/
public class JdbcPollingChannelAdapterParser extends AbstractPollingInboundChannelAdapterParser {
protected boolean shouldGenerateId() {
return false;
}
protected boolean shouldGenerateIdAsFallback() {
return true;
}
@Override
protected BeanMetadataElement parseSource(Element element, ParserContext parserContext) {
Object source = parserContext.extractSource(element);
BeanDefinitionBuilder builder = BeanDefinitionBuilder
.genericBeanDefinition(JdbcPollingChannelAdapter.class);
String dataSourceRef = element.getAttribute("data-source");
String jdbcOperationsRef = element.getAttribute("jdbc-operations");
boolean refToDataSourceSet = StringUtils.hasText(dataSourceRef);
boolean refToJdbcOperationsSet = StringUtils.hasText(jdbcOperationsRef);
if ((refToDataSourceSet && refToJdbcOperationsSet)
|| (!refToDataSourceSet && !refToJdbcOperationsSet)) {
parserContext.getReaderContext().error("Exactly one of the attributes data-source or " +
"simple-jdbc-operations should be set for the JDBC inbound-channel-adapter", source);
}
String query = IntegrationNamespaceUtils.getTextFromAttributeOrNestedElement(element, "query", parserContext);
if (!StringUtils.hasText(query)) {
throw new BeanCreationException("The query attrbitue is required");
}
String update = IntegrationNamespaceUtils.getTextFromAttributeOrNestedElement(element, "update", parserContext);
if (refToDataSourceSet) {
builder.addConstructorArgReference(dataSourceRef);
}
else {
builder.addConstructorArgReference(jdbcOperationsRef);
}
builder.addConstructorArgValue(query);
IntegrationNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "row-mapper");
IntegrationNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "update-sql-parameter-source-factory");
IntegrationNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "select-sql-parameter-source");
IntegrationNamespaceUtils.setValueIfAttributeDefined(builder, element, "max-rows-per-poll");
if (update != null) {
builder.addPropertyValue("updateSql", update);
}
IntegrationNamespaceUtils.setValueIfAttributeDefined(builder, element, "update-per-row");
return builder.getBeanDefinition();
}
}