com.dangdang.ddframe.reg.spring.namespace.ZookeeperBeanDefinitionParser Maven / Gradle / Ivy
/*
* Copyright 1999-2015 dangdang.com.
*
* 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 com.dangdang.ddframe.reg.spring.namespace;
import com.dangdang.ddframe.job.reg.zookeeper.ZookeeperConfiguration;
import com.dangdang.ddframe.job.reg.zookeeper.ZookeeperRegistryCenter;
import com.google.common.base.Strings;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* 基于Zookeeper注册中心的命名空间解析器.
*
* @author caohao
*/
class ZookeeperBeanDefinitionParser extends AbstractBeanDefinitionParser {
@Override
protected AbstractBeanDefinition parseInternal(final Element element, final ParserContext parserContext) {
BeanDefinitionBuilder result = BeanDefinitionBuilder.rootBeanDefinition(ZookeeperRegistryCenter.class);
result.addConstructorArgValue(buildZookeeperConfigurationBeanDefinition(element));
result.setInitMethodName("init");
return result.getBeanDefinition();
}
private AbstractBeanDefinition buildZookeeperConfigurationBeanDefinition(final Element element) {
BeanDefinitionBuilder configuration = BeanDefinitionBuilder.rootBeanDefinition(ZookeeperConfiguration.class);
configuration.addConstructorArgValue(element.getAttribute("server-lists"));
configuration.addConstructorArgValue(element.getAttribute("namespace"));
addPropertyValueIfNotEmpty("base-sleep-time-milliseconds", "baseSleepTimeMilliseconds", element, configuration);
addPropertyValueIfNotEmpty("max-sleep-time-milliseconds", "maxSleepTimeMilliseconds", element, configuration);
addPropertyValueIfNotEmpty("session-timeout-milliseconds", "sessionTimeoutMilliseconds", element, configuration);
addPropertyValueIfNotEmpty("connection-timeout-milliseconds", "connectionTimeoutMilliseconds", element, configuration);
addPropertyValueIfNotEmpty("digest", "digest", element, configuration);
return configuration.getBeanDefinition();
}
private void addPropertyValueIfNotEmpty(final String attributeName, final String propertyName, final Element element, final BeanDefinitionBuilder factory) {
String attributeValue = element.getAttribute(attributeName);
if (!Strings.isNullOrEmpty(attributeValue)) {
factory.addPropertyValue(propertyName, attributeValue);
}
}
}