org.springframework.data.cassandra.config.CqlSessionParser Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of spring-data-cassandra Show documentation
Show all versions of spring-data-cassandra Show documentation
Cassandra support for Spring Data
/*
* Copyright 2013-2021 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
*
* https://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.config;
import static org.springframework.data.cassandra.config.ParsingUtils.*;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.ManagedSet;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.data.cassandra.core.cql.keyspace.KeyspaceAttributes;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;
/**
* Parser for <session> definitions.
*
* @author Mark Paluch
*/
class CqlSessionParser extends AbstractSingleBeanDefinitionParser {
/* (non-Javadoc)
* @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#getBeanClass(org.w3c.dom.Element)
*/
@Override
protected Class getBeanClass(Element element) {
return ExtendedCqlSessionFactoryBean.class;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#resolveId(org.w3c.dom.Element, org.springframework.beans.factory.support.AbstractBeanDefinition, org.springframework.beans.factory.xml.ParserContext)
*/
@Override
protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
throws BeanDefinitionStoreException {
String id = super.resolveId(element, definition, parserContext);
return StringUtils.hasText(id) ? id : DefaultCqlBeanNames.SESSION;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#doParse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext, org.springframework.beans.factory.support.BeanDefinitionBuilder)
*/
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
addOptionalPropertyValue(builder, "keyspaceName", element, "keyspace-name");
addOptionalPropertyValue(builder, "contactPointsAsString", element, "contact-points");
addOptionalPropertyValue(builder, "localDatacenter", element, "local-datacenter");
addOptionalPropertyValue(builder, "password", element, "password");
addOptionalPropertyValue(builder, "port", element, "port");
addOptionalPropertyValue(builder, "username", element, "username");
if (element.hasAttribute("cassandra-converter-ref")) {
addRequiredPropertyReference(builder, "converter", element, "cassandra-converter-ref");
}
addOptionalPropertyValue(builder, "schemaAction", element, "schema-action", SchemaAction.NONE.name());
parseChildElements(element, parserContext, builder);
builder.getRawBeanDefinition().setSource(element);
}
/**
* Parses child elements of cluster.
*
* @param element {@link Element} to parse.
* @param parserContext XML parser context and state.
* @param builder parent {@link BeanDefinitionBuilder}.
*/
protected void parseChildElements(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
ManagedSet keyspaceActionSpecificationBeanDefinitions = new ManagedSet<>();
List startupScripts = new ArrayList<>();
List shutdownScripts = new ArrayList<>();
// parse child elements
for (Element subElement : DomUtils.getChildElements(element)) {
String name = subElement.getLocalName();
if ("keyspace".equals(name)) {
keyspaceActionSpecificationBeanDefinitions
.add(newKeyspaceActionSpecificationBeanDefinition(subElement, parserContext));
} else if ("keyspace-startup-cql".equals(name)) {
startupScripts.add(parseScript(subElement));
} else if ("keyspace-shutdown-cql".equals(name)) {
shutdownScripts.add(parseScript(subElement));
} else if ("startup-cql".equals(name)) {
startupScripts.add(parseScript(subElement));
} else if ("shutdown-cql".equals(name)) {
shutdownScripts.add(parseScript(subElement));
} else {
throw new IllegalStateException(String.format("encountered unhandled element [%s]", subElement.getLocalName()));
}
}
builder.addPropertyValue("keyspaceActions", keyspaceActionSpecificationBeanDefinitions);
builder.addPropertyValue("startupScripts", startupScripts);
builder.addPropertyValue("shutdownScripts", shutdownScripts);
}
/**
* Returns a {@link BeanDefinition} for a {@link KeyspaceActionSpecification} object.
*
* @param element Element being parsed.
* @param parserContext XML parser context and state.
* @return the {@link BeanDefinition} or {@literal null} if action is not given.
*/
private BeanDefinition newKeyspaceActionSpecificationBeanDefinition(Element element, ParserContext parserContext) {
BeanDefinitionBuilder builder = BeanDefinitionBuilder
.genericBeanDefinition(KeyspaceActionSpecificationFactoryBean.class);
// add required replication defaults
addRequiredPropertyValue(builder, "replicationStrategy", KeyspaceAttributes.DEFAULT_REPLICATION_STRATEGY.name());
addRequiredPropertyValue(builder, "replicationFactor",
String.valueOf(KeyspaceAttributes.DEFAULT_REPLICATION_FACTOR));
addRequiredPropertyValue(builder, "name", element, "name");
addOptionalPropertyValue(builder, "durableWrites", element, "durable-writes", "false");
addRequiredPropertyValue(builder, "action", element, "action");
return getSourceBeanDefinition(builder, parserContext, element);
}
/**
* Parse CQL script {@link Element}s.
*
* @param element {@link Element} to parse.
* @return return the contents of the {@link Element}, which should contain the CQL script.
*/
String parseScript(Element element) {
return element.getTextContent();
}
/**
* Wrapper to enable setting contact points as string to avoid over loaded setContactPoints reflection confusion that
* depends on the reflection method load order.
*/
static class ExtendedCqlSessionFactoryBean extends CqlSessionFactoryBean {
/**
* Bridge method for {@link #setContactPoints(String)}.
*
* @param contactPoints
*/
public void setContactPointsAsString(String contactPoints) {
setContactPoints(contactPoints);
}
}
}