org.springframework.integration.config.xml.SelectorParser Maven / Gradle / Ivy
/*
* Copyright 2002-2019 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.integration.config.xml;
import org.w3c.dom.Element;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.filter.MethodInvokingSelector;
import org.springframework.util.StringUtils;
/**
* Parser for a top-level <selector/> element.
*
* @author Mark Fisher
* @since 1.0.4
*/
public class SelectorParser extends AbstractSingleBeanDefinitionParser {
@Override
protected String getBeanClassName(Element element) {
return MethodInvokingSelector.class.getName();
}
public void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
String id = element.getAttribute("id");
if (!StringUtils.hasText(id)) {
parserContext.getReaderContext().error(
"The 'id' attribute is required for a selector.", element);
}
String ref = element.getAttribute("ref");
if (!StringUtils.hasText(ref)) {
parserContext.getReaderContext().error(
"The 'ref' attribute is required for selector '" + id + "'.", element);
}
String method = element.getAttribute("method");
if (!StringUtils.hasText(method)) {
parserContext.getReaderContext().error(
"The 'method' attribute is required for selector '" + id + "'.", element);
}
builder.addConstructorArgValue(new RuntimeBeanReference(ref));
builder.addConstructorArgValue(method);
}
}