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Namespace support for XPathRouter INT-300

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This commit is contained in:
Jonas Partner
2008-07-17 09:06:56 +00:00
parent 8dfe625163
commit b9ea75ea98
13 changed files with 354 additions and 56 deletions
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1
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/config/IntegrationXmlNamespaceHandler.java
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@@ -29,6 +29,7 @@ public class IntegrationXmlNamespaceHandler extends NamespaceHandlerSupport {
registerBeanDefinitionParser("marshalling-transformer", new XmlMarshallingTransformerParser());
registerBeanDefinitionParser("unmarshalling-transformer", new XmlUnmarshallingTransformerParser());
registerBeanDefinitionParser("xslt-transformer", new XsltPayloadTransformerParser());
registerBeanDefinitionParser("xpath-router", new XPathRouterParser());
}
}

86
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/config/XPathRouterParser.java Normal file
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@@ -0,0 +1,86 @@
/*
* Copyright 2002-2007 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.integration.xml.config;
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.ConfigurationException;
import org.springframework.integration.router.MultiChannelRouter;
import org.springframework.integration.router.SingleChannelRouter;
import org.springframework.integration.xml.router.XPathMultiChannelNameResolver;
import org.springframework.integration.xml.router.XPathSingleChannelNameResolver;
import org.springframework.util.StringUtils;
import org.springframework.xml.xpath.XPathExpression;
import org.springframework.xml.xpath.XPathExpressionFactory;
import org.w3c.dom.Element;
/**
*
* @author Jonas Partner
*
*/
public class XPathRouterParser extends AbstractSingleBeanDefinitionParser {
@Override
protected boolean shouldGenerateId() {
return false;
}
@Override
protected boolean shouldGenerateIdAsFallback() {
return true;
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
boolean multiChannel = Boolean.parseBoolean(element.getAttribute("multi-channel"));
boolean resolutionRequired = Boolean.parseBoolean(element.getAttribute("resolution-required"));
String xPathExpression = element.getAttribute("xpath-expression");
String xPathExpressionRef = element.getAttribute("xpath-expression-ref");
if ((StringUtils.hasText(xPathExpression) && StringUtils.hasText(xPathExpressionRef))
|| (!StringUtils.hasText(xPathExpression) && !StringUtils.hasText(xPathExpressionRef))) {
throw new ConfigurationException("Exactl one of xpath-expression or xpath-expression-ref is required");
}
BeanDefinitionBuilder resolverDefinitionBuilder = null;
if (multiChannel) {
builder.getBeanDefinition().setBeanClass(MultiChannelRouter.class);
resolverDefinitionBuilder = BeanDefinitionBuilder
.genericBeanDefinition(XPathMultiChannelNameResolver.class);
}
else {
builder.getBeanDefinition().setBeanClass(SingleChannelRouter.class);
resolverDefinitionBuilder = BeanDefinitionBuilder
.genericBeanDefinition(XPathSingleChannelNameResolver.class);
}
if (StringUtils.hasText(xPathExpression)) {
XPathExpression expression = XPathExpressionFactory.createXPathExpression(xPathExpression);
resolverDefinitionBuilder.addConstructorArgValue(expression);
}
else {
resolverDefinitionBuilder.addConstructorArgReference(xPathExpressionRef);
}
builder.getBeanDefinition().getPropertyValues().addPropertyValue("resolutionRequired", resolutionRequired);
builder.getBeanDefinition().getPropertyValues().addPropertyValue("channelNameResolver",
resolverDefinitionBuilder.getBeanDefinition());
}
}

44
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/config/spring-integration-xml-1.0.xsd
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@@ -38,7 +38,7 @@
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="unmarshalling-transformer">
<xsd:complexType>
<xsd:annotation>
@@ -51,22 +51,46 @@
use="required" />
</xsd:complexType>
</xsd:element>
<xsd:element name="xslt-transformer">
<xsd:element name="xslt-transformer">
<xsd:complexType>
<xsd:annotation>
<xsd:documentation>
Defines a XML unmarshalling transformer.
Defines a XML XSLT transformer.
</xsd:documentation>
</xsd:annotation>
<xsd:attribute name="id" type="xsd:string" use="required" />
<xsd:attribute name="xsl-resource" type="xsd:string" use="optional" />
<xsd:attribute name="xsl-templates" type="xsd:string" use="optional" />
<xsd:attribute name="source-factory" type="xsd:string" use="optional" />
<xsd:attribute name="result-factory" type="xsd:string" use="optional" />
<xsd:attribute name="xsl-resource" type="xsd:string"
use="optional" />
<xsd:attribute name="xsl-templates" type="xsd:string"
use="optional" />
<xsd:attribute name="source-factory" type="xsd:string"
use="optional" />
<xsd:attribute name="result-factory" type="xsd:string"
use="optional" />
</xsd:complexType>
</xsd:element>
<xsd:element name="xpath-router">
<xsd:complexType>
<xsd:annotation>
<xsd:documentation>
Defines a XPath router.
</xsd:documentation>
</xsd:annotation>
<xsd:attribute name="id" type="xsd:string" use="required" />
<xsd:attribute name="xpath-expression-ref" type="xsd:string"
use="optional" />
<xsd:attribute name="xpath-expression" type="xsd:string"
use="optional" />
<xsd:attribute name="multi-channel" type="xsd:boolean"
default="false" />
<xsd:attribute name="resolution-required" type="xsd:boolean"
default="true" />
</xsd:complexType>
</xsd:element>
</xsd:schema>

5
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/router/AbstractXPathChannelNameResolver.java
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@@ -20,6 +20,11 @@ import org.springframework.integration.message.Message;
import org.springframework.integration.message.MessagingException;
import org.w3c.dom.Node;
/**
*
* @author Jonas Partner
*
*/
public class AbstractXPathChannelNameResolver {
protected Node extractNode(Message<?> message) {

30
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/router/XPathMultiChannelNameResolver.java
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@@ -26,36 +26,40 @@ import org.springframework.xml.xpath.XPathExpression;
import org.w3c.dom.DOMException;
import org.w3c.dom.Node;
/**
*
* @author Jonas Partner
*
*/
public class XPathMultiChannelNameResolver extends AbstractXPathChannelNameResolver implements MultiChannelNameResolver {
private final XPathExpression xPathExpression;
private NodeMapper nodeMapper = new TextContentNodeMapper();
public XPathMultiChannelNameResolver(XPathExpression xPathExpression){
public XPathMultiChannelNameResolver(XPathExpression xPathExpression) {
Assert.notNull("XPAthExpression must be provided");
this.xPathExpression = xPathExpression;
}
public void setNodeMapper(NodeMapper nodeMapper){
Assert.notNull(nodeMapper,"NodeMapper can not be null");
public void setNodeMapper(NodeMapper nodeMapper) {
Assert.notNull(nodeMapper, "NodeMapper can not be null");
this.nodeMapper = nodeMapper;
}
@SuppressWarnings("unchecked")
public String[] resolve(Message<?> message) {
Node node =extractNode(message);
Node node = extractNode(message);
List channelNamesList = xPathExpression.evaluate(node, nodeMapper);
return (String[])channelNamesList.toArray(new String[channelNamesList.size()]);
return (String[]) channelNamesList.toArray(new String[channelNamesList.size()]);
}
private static class TextContentNodeMapper implements NodeMapper{
private static class TextContentNodeMapper implements NodeMapper {
public Object mapNode(Node node, int nodeNum) throws DOMException {
return node.getTextContent();
}
}
}

18
org.springframework.integration.xml/src/main/java/org/springframework/integration/xml/router/XPathSingleChannelNameResolver.java
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@@ -17,27 +17,29 @@
package org.springframework.integration.xml.router;
import org.springframework.integration.message.Message;
import org.springframework.integration.message.MessagingException;
import org.springframework.integration.router.ChannelNameResolver;
import org.springframework.util.Assert;
import org.springframework.xml.xpath.XPathExpression;
import org.w3c.dom.Node;
/**
*
* @author Jonas Partner
*
*/
public class XPathSingleChannelNameResolver extends AbstractXPathChannelNameResolver implements ChannelNameResolver {
private final XPathExpression xPathExpression;
public XPathSingleChannelNameResolver(XPathExpression xPathExpression){
Assert.notNull("XPAthExpression must be provided");
public XPathSingleChannelNameResolver(XPathExpression xPathExpression) {
Assert.notNull("XPathExpression must be provided");
this.xPathExpression = xPathExpression;
}
public String resolve(Message<?> message) {
Node node = extractNode(message);
System.out.println(xPathExpression.evaluateAsString(node));
return xPathExpression.evaluateAsString(node);
}
}