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org.springframework.data.gemfire.config.PoolParser Maven / Gradle / Ivy
/*
* Copyright 2010-2013 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.gemfire.config;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.regex.Pattern;
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.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;
import org.w3c.dom.Element;
/**
* Parser for GFE <pool;gt; bean definitions.
*
* @author Costin Leau
* @author David Turanski
* @author John Blum
*/
class PoolParser extends AbstractSingleBeanDefinitionParser {
static final AtomicBoolean INFRASTRUCTURE_REGISTRATION = new AtomicBoolean(false);
protected static final int DEFAULT_LOCATOR_PORT = GemfireUtils.DEFAULT_LOCATOR_PORT;
protected static final int DEFAULT_SERVER_PORT = GemfireUtils.DEFAULT_CACHE_SERVER_PORT;
protected static final Pattern PROPERTY_PLACEHOLDER_PATTERN = Pattern.compile("\\$\\{.+\\}");
protected static final String DEFAULT_HOST = "localhost";
protected static final String HOST_ATTRIBUTE_NAME = "host";
protected static final String LOCATOR_ELEMENT_NAME = "locator";
protected static final String LOCATORS_ATTRIBUTE_NAME = "locators";
protected static final String PORT_ATTRIBUTE_NAME = "port";
protected static final String SERVER_ELEMENT_NAME = "server";
protected static final String SERVERS_ATTRIBUTE_NAME = "servers";
/* (non-Javadoc) */
static void registerSupportingInfrastructureComponents(ParserContext parserContext) {
if (INFRASTRUCTURE_REGISTRATION.compareAndSet(false, true)) {
AbstractBeanDefinition beanDefinition = BeanDefinitionBuilder
.genericBeanDefinition(ClientRegionAndPoolBeanFactoryPostProcessor.class)
.setRole(BeanDefinition.ROLE_INFRASTRUCTURE)
.getBeanDefinition();
BeanDefinitionReaderUtils.registerWithGeneratedName(beanDefinition, parserContext.getRegistry());
}
}
@Override
protected Class getBeanClass(Element element) {
return PoolFactoryBean.class;
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
registerSupportingInfrastructureComponents(parserContext);
ParsingUtils.setPropertyValue(element, builder, "free-connection-timeout");
ParsingUtils.setPropertyValue(element, builder, "idle-timeout");
ParsingUtils.setPropertyValue(element, builder, "keep-alive");
ParsingUtils.setPropertyValue(element, builder, "load-conditioning-interval");
ParsingUtils.setPropertyValue(element, builder, "max-connections");
ParsingUtils.setPropertyValue(element, builder, "min-connections");
ParsingUtils.setPropertyValue(element, builder, "multi-user-authentication");
ParsingUtils.setPropertyValue(element, builder, "ping-interval");
ParsingUtils.setPropertyValue(element, builder, "pr-single-hop-enabled");
ParsingUtils.setPropertyValue(element, builder, "read-timeout");
ParsingUtils.setPropertyValue(element, builder, "retry-attempts");
ParsingUtils.setPropertyValue(element, builder, "server-group");
ParsingUtils.setPropertyValue(element, builder, "socket-buffer-size");
ParsingUtils.setPropertyValue(element, builder, "statistic-interval");
ParsingUtils.setPropertyValue(element, builder, "subscription-ack-interval");
ParsingUtils.setPropertyValue(element, builder, "subscription-enabled");
ParsingUtils.setPropertyValue(element, builder, "subscription-message-tracking-timeout");
ParsingUtils.setPropertyValue(element, builder, "subscription-redundancy");
ParsingUtils.setPropertyValue(element, builder, "thread-local-connections");
List childElements = DomUtils.getChildElements(element);
ManagedList locators = new ManagedList(childElements.size());
ManagedList servers = new ManagedList(childElements.size());
for (Element childElement : childElements) {
String childElementName = childElement.getLocalName();
if (LOCATOR_ELEMENT_NAME.equals(childElementName)) {
locators.add(parseLocator(childElement));
}
if (SERVER_ELEMENT_NAME.equals(childElementName)) {
servers.add(parseServer(childElement));
}
}
locators.addAll(parseLocators(element, getRegistry(parserContext)));
servers.addAll(parseServers(element, getRegistry(parserContext)));
// NOTE if neither Locators nor Servers were specified, then setup a connection to a Server
// running on localhost, listening on the default CacheServer port, 40404
if (childElements.isEmpty() && !hasAttributes(element, LOCATORS_ATTRIBUTE_NAME, SERVERS_ATTRIBUTE_NAME)) {
servers.add(buildConnection(DEFAULT_HOST, String.valueOf(DEFAULT_SERVER_PORT), false));
}
if (!locators.isEmpty()) {
builder.addPropertyValue("locators", locators);
}
if (!servers.isEmpty()) {
builder.addPropertyValue("servers", servers);
}
}
/* (non-Javadoc) */
boolean hasAttributes(Element element, String... attributeNames) {
for (String attributeName : attributeNames) {
if (element.hasAttribute(attributeName)) {
return true;
}
}
return false;
}
/* (non-Javadoc) */
boolean isPropertyPlaceholder(String value) {
return PROPERTY_PLACEHOLDER_PATTERN.matcher(value).matches();
}
/* (non-Javadoc) */
BeanDefinitionRegistry getRegistry(ParserContext parserContext) {
return parserContext.getRegistry();
}
/* (non-Javadoc) */
BeanDefinition buildConnections(String propertyPlaceholder, boolean server) {
BeanDefinitionBuilder connectionEndpointListBuilder = BeanDefinitionBuilder.genericBeanDefinition(
ConnectionEndpointList.class);
connectionEndpointListBuilder.setFactoryMethod("parse");
connectionEndpointListBuilder.addConstructorArgValue(defaultPort(null, server));
connectionEndpointListBuilder.addConstructorArgValue(propertyPlaceholder);
return connectionEndpointListBuilder.getBeanDefinition();
}
/* (non-Javadoc) */
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();
}
/* (non-Javadoc) */
String defaultHost(String host) {
return (StringUtils.hasText(host) ? host : DEFAULT_HOST);
}
/* (non-Javadoc) */
String defaultPort(String port, boolean server) {
return (StringUtils.hasText(port) ? port : (server ? String.valueOf(DEFAULT_SERVER_PORT)
: String.valueOf(DEFAULT_LOCATOR_PORT)));
}
/* (non-Javadoc) */
List parseConnections(String hostPortCommaDelimitedList, boolean server) {
List connections = Collections.emptyList();
if (StringUtils.hasText(hostPortCommaDelimitedList)) {
String[] hostsPorts = hostPortCommaDelimitedList.split(",");
connections = new ArrayList(hostsPorts.length);
for (String hostPort : hostsPorts) {
connections.add(parseConnection(hostPort, server));
}
}
return connections;
}
/* (non-Javadoc) */
BeanDefinition parseConnection(String hostPort, boolean server) {
String host = hostPort.trim();
String port = defaultPort(null, server);
int portIndex = host.indexOf('[');
if (portIndex > -1) {
port = parseDigits(host.substring(portIndex)).trim();
host = host.substring(0, portIndex).trim();
}
return buildConnection(host, port, server);
}
/* (non-Javadoc) */
String parseDigits(String value) {
StringBuilder digits = new StringBuilder();
for (char character : value.toCharArray()) {
if (Character.isDigit(character)) {
digits.append(character);
}
}
return digits.toString();
}
/* (non-Javadoc) */
BeanDefinition parseLocator(Element element) {
return buildConnection(element.getAttribute(HOST_ATTRIBUTE_NAME),
element.getAttribute(PORT_ATTRIBUTE_NAME), false);
}
/* (non-Javadoc) */
List parseLocators(Element element, BeanDefinitionRegistry registry) {
List beanDefinitions = Collections.emptyList();
String locatorsAttributeValue = element.getAttribute(LOCATORS_ATTRIBUTE_NAME);
if (isPropertyPlaceholder(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();
BeanDefinitionReaderUtils.registerWithGeneratedName(addLocatorsMethodInvokingBean, registry);
}
else {
beanDefinitions = parseConnections(locatorsAttributeValue, false);
}
return beanDefinitions;
}
/* (non-Javadoc) */
BeanDefinition parseServer(Element element) {
return buildConnection(element.getAttribute(HOST_ATTRIBUTE_NAME),
element.getAttribute(PORT_ATTRIBUTE_NAME), true);
}
/* (non-Javadoc) */
List parseServers(Element element, BeanDefinitionRegistry registry) {
List beanDefinitions = Collections.emptyList();
String serversAttributeValue = element.getAttribute(SERVERS_ATTRIBUTE_NAME);
if (isPropertyPlaceholder(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();
BeanDefinitionReaderUtils.registerWithGeneratedName(addServersMethodInvokingBean, registry);
}
else {
beanDefinitions = parseConnections(serversAttributeValue, true);
}
return beanDefinitions;
}
/* (non-Javadoc) */
String resolveId(Element element) {
String id = element.getAttribute(ID_ATTRIBUTE);
return (StringUtils.hasText(id) ? id : GemfireConstants.DEFAULT_GEMFIRE_POOL_NAME);
}
/* (non-Javadoc) */
String resolveDereferencedId(Element element) {
return SpringUtils.dereferenceBean(resolveId(element));
}
/* (non-Javadoc) */
@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;
}
}
