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org.springframework.data.gemfire.config.xml.PoolParser Maven / Gradle / Ivy
/*
* Copyright 2010-2020 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.gemfire.config.xml;
import static org.springframework.data.gemfire.util.CollectionUtils.nullSafeList;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicBoolean;
import org.w3c.dom.Element;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.MethodInvokingBean;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.data.gemfire.GemfireUtils;
import org.springframework.data.gemfire.client.PoolFactoryBean;
import org.springframework.data.gemfire.config.support.ClientRegionPoolBeanFactoryPostProcessor;
import org.springframework.data.gemfire.support.ConnectionEndpoint;
import org.springframework.data.gemfire.support.ConnectionEndpointList;
import org.springframework.data.gemfire.util.SpringUtils;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
/**
* Bean definition parser for <gfe:pool> SDG XML namespace (XSD) elements.
*
* @author Costin Leau
* @author David Turanski
* @author John Blum
* @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser
* @see org.springframework.data.gemfire.client.PoolFactoryBean
*/
class PoolParser extends AbstractSingleBeanDefinitionParser {
static final AtomicBoolean INFRASTRUCTURE_COMPONENTS_REGISTERED = new AtomicBoolean(false);
static final int DEFAULT_LOCATOR_PORT = GemfireUtils.DEFAULT_LOCATOR_PORT;
static final int DEFAULT_SERVER_PORT = GemfireUtils.DEFAULT_CACHE_SERVER_PORT;
static final String DEFAULT_HOST = "localhost";
static final String HOST_ATTRIBUTE_NAME = "host";
static final String LOCATOR_ELEMENT_NAME = "locator";
static final String LOCATORS_ATTRIBUTE_NAME = "locators";
static final String PORT_ATTRIBUTE_NAME = "port";
static final String SERVER_ELEMENT_NAME = "server";
static final String SERVERS_ATTRIBUTE_NAME = "servers";
private static void registerInfrastructureComponents(ParserContext parserContext) {
if (INFRASTRUCTURE_COMPONENTS_REGISTERED.compareAndSet(false, true)) {
// Be careful to not to register this infrastructure component (just yet; requires more thought)
/*
BeanDefinitionReaderUtils.registerWithGeneratedName(
BeanDefinitionBuilder.rootBeanDefinition(ClientCachePoolBeanFactoryPostProcessor.class)
.setRole(BeanDefinition.ROLE_INFRASTRUCTURE)
.getBeanDefinition(), parserContext.getRegistry());
*/
BeanDefinitionReaderUtils.registerWithGeneratedName(
BeanDefinitionBuilder.rootBeanDefinition(ClientRegionPoolBeanFactoryPostProcessor.class)
.setRole(BeanDefinition.ROLE_INFRASTRUCTURE)
.getBeanDefinition(), parserContext.getRegistry());
}
}
/**
* {@inheritDoc}
*/
@Override
protected Class getBeanClass(Element element) {
return PoolFactoryBean.class;
}
/**
* {@inheritDoc}
*/
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder poolBuilder) {
registerInfrastructureComponents(parserContext);
// Be careful not to enable this dependency
//poolBuilder.addDependsOn(GemfireConstants.DEFAULT_GEMFIRE_CACHE_NAME);
ParsingUtils.setPropertyValue(element, poolBuilder, "free-connection-timeout");
ParsingUtils.setPropertyValue(element, poolBuilder, "idle-timeout");
ParsingUtils.setPropertyValue(element, poolBuilder, "keep-alive");
ParsingUtils.setPropertyValue(element, poolBuilder, "load-conditioning-interval");
ParsingUtils.setPropertyValue(element, poolBuilder, "max-connections");
ParsingUtils.setPropertyValue(element, poolBuilder, "min-connections");
ParsingUtils.setPropertyValue(element, poolBuilder, "multi-user-authentication");
ParsingUtils.setPropertyValue(element, poolBuilder, "ping-interval");
ParsingUtils.setPropertyValue(element, poolBuilder, "pr-single-hop-enabled");
ParsingUtils.setPropertyValue(element, poolBuilder, "read-timeout");
ParsingUtils.setPropertyValue(element, poolBuilder, "retry-attempts");
ParsingUtils.setPropertyValue(element, poolBuilder, "server-group");
ParsingUtils.setPropertyValue(element, poolBuilder, "socket-buffer-size");
ParsingUtils.setPropertyValue(element, poolBuilder, "socket-connect-timeout");
ParsingUtils.setPropertyValue(element, poolBuilder, "statistic-interval");
ParsingUtils.setPropertyValue(element, poolBuilder, "subscription-ack-interval");
ParsingUtils.setPropertyValue(element, poolBuilder, "subscription-enabled");
ParsingUtils.setPropertyValue(element, poolBuilder, "subscription-message-tracking-timeout");
ParsingUtils.setPropertyValue(element, poolBuilder, "subscription-redundancy");
ParsingUtils.setPropertyValue(element, poolBuilder, "subscription-timeout-multiplier");
ParsingUtils.setPropertyValue(element, poolBuilder, "thread-local-connections");
List childElements = DomUtils.getChildElements(element);
ManagedList locators = new ManagedList<>(childElements.size());
ManagedList servers = new ManagedList<>(childElements.size());
nullSafeList(childElements).forEach(childElement -> {
String childElementName = childElement.getLocalName();
if (LOCATOR_ELEMENT_NAME.equals(childElementName)) {
locators.add(parseLocator(childElement));
}
if (SERVER_ELEMENT_NAME.equals(childElementName)) {
servers.add(parseServer(childElement));
}
});
BeanDefinitionRegistry registry = resolveRegistry(parserContext);
boolean locatorsSet = parseLocators(element, poolBuilder, registry);
boolean serversSet = parseServers(element, poolBuilder, registry);
// If neither Locators nor Servers were explicitly configured, then setup a connection to a CacheServer
// running on localhost, listening on the default CacheServer port, 40404
if (childElements.isEmpty() && !(locatorsSet || serversSet)) {
servers.add(buildConnection(DEFAULT_HOST, String.valueOf(DEFAULT_SERVER_PORT), true));
}
if (!locators.isEmpty()) {
poolBuilder.addPropertyValue("locators", locators);
}
if (!servers.isEmpty()) {
poolBuilder.addPropertyValue("servers", servers);
}
}
BeanDefinitionRegistry resolveRegistry(ParserContext parserContext) {
return parserContext.getRegistry();
}
BeanDefinition buildConnection(String host, String port, boolean server) {
BeanDefinitionBuilder connectionEndpointBuilder =
BeanDefinitionBuilder.genericBeanDefinition(ConnectionEndpoint.class);
connectionEndpointBuilder.addConstructorArgValue(defaultHost(host));
connectionEndpointBuilder.addConstructorArgValue(defaultPort(port, server));
return connectionEndpointBuilder.getBeanDefinition();
}
BeanDefinition buildConnections(String expression, boolean server) {
BeanDefinitionBuilder connectionEndpointListBuilder =
BeanDefinitionBuilder.genericBeanDefinition(ConnectionEndpointList.class);
connectionEndpointListBuilder.setFactoryMethod("parse");
connectionEndpointListBuilder.addConstructorArgValue(defaultPort(null, server));
connectionEndpointListBuilder.addConstructorArgValue(expression);
return connectionEndpointListBuilder.getBeanDefinition();
}
String defaultHost(String host) {
return (StringUtils.hasText(host) ? host : DEFAULT_HOST);
}
String defaultPort(String port, boolean server) {
return (StringUtils.hasText(port) ? port
: (server ? String.valueOf(DEFAULT_SERVER_PORT) : String.valueOf(DEFAULT_LOCATOR_PORT)));
}
BeanDefinition parseLocator(Element element) {
return buildConnection(element.getAttribute(HOST_ATTRIBUTE_NAME),
element.getAttribute(PORT_ATTRIBUTE_NAME), false);
}
boolean parseLocators(Element element, BeanDefinitionBuilder poolBuilder, BeanDefinitionRegistry registry) {
String locatorsAttributeValue = element.getAttribute(LOCATORS_ATTRIBUTE_NAME);
if (StringUtils.hasText(locatorsAttributeValue)) {
BeanDefinitionBuilder addLocatorsMethodInvokingBeanBuilder =
BeanDefinitionBuilder.genericBeanDefinition(MethodInvokingBean.class);
addLocatorsMethodInvokingBeanBuilder.addPropertyReference("targetObject", resolveDereferencedId(element));
addLocatorsMethodInvokingBeanBuilder.addPropertyValue("targetMethod", "addLocators");
addLocatorsMethodInvokingBeanBuilder.addPropertyValue("arguments",
buildConnections(locatorsAttributeValue, false));
AbstractBeanDefinition addLocatorsMethodInvokingBean =
addLocatorsMethodInvokingBeanBuilder.getBeanDefinition();
poolBuilder.addPropertyReference("locatorsConfiguration",
BeanDefinitionReaderUtils.registerWithGeneratedName(addLocatorsMethodInvokingBean, registry));
return true;
}
return false;
}
BeanDefinition parseServer(Element element) {
return buildConnection(element.getAttribute(HOST_ATTRIBUTE_NAME),
element.getAttribute(PORT_ATTRIBUTE_NAME), true);
}
boolean parseServers(Element element, BeanDefinitionBuilder poolBuilder, BeanDefinitionRegistry registry) {
String serversAttributeValue = element.getAttribute(SERVERS_ATTRIBUTE_NAME);
if (StringUtils.hasText(serversAttributeValue)) {
BeanDefinitionBuilder addServersMethodInvokingBeanBuilder =
BeanDefinitionBuilder.genericBeanDefinition(MethodInvokingBean.class);
addServersMethodInvokingBeanBuilder.addPropertyReference("targetObject", resolveDereferencedId(element));
addServersMethodInvokingBeanBuilder.addPropertyValue("targetMethod", "addServers");
addServersMethodInvokingBeanBuilder.addPropertyValue("arguments",
buildConnections(serversAttributeValue, true));
AbstractBeanDefinition addServersMethodInvokingBean =
addServersMethodInvokingBeanBuilder.getBeanDefinition();
poolBuilder.addPropertyReference("serversConfiguration",
BeanDefinitionReaderUtils.registerWithGeneratedName(addServersMethodInvokingBean, registry));
return true;
}
return false;
}
String resolveId(Element element) {
return Optional.ofNullable(element.getAttribute(ID_ATTRIBUTE)).filter(StringUtils::hasText)
.orElse(GemfireConstants.DEFAULT_GEMFIRE_POOL_NAME);
}
String resolveDereferencedId(Element element) {
return SpringUtils.dereferenceBean(resolveId(element));
}
@Override
protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
throws BeanDefinitionStoreException {
String id = super.resolveId(element, definition, parserContext);
if (!StringUtils.hasText(id)) {
id = GemfireConstants.DEFAULT_GEMFIRE_POOL_NAME;
parserContext.getRegistry().registerAlias(GemfireConstants.DEFAULT_GEMFIRE_POOL_NAME, "gemfire-pool");
}
return id;
}
}
