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INT-3317: Remove comparator from resequencer

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JIRA: https://jira.spring.io/browse/INT-3317

In addition add `AbstractCorrelatingMessageHandler.discardChannelName` for convenience with JavaConfig

INT-3317: Add `AbstractCorrMH.outputChannelName`

INT-3317: Fix further `BF` population

Also add `MessageFilter.discardChannelName`

Move `XPathExpressionEvaluatingHeaderValueMessageProcessor` to the `xml.transformer.support` package

Additional polishing

Polishing

PR comments.
This commit is contained in:
Artem Bilan
2014-03-12 12:27:25 +02:00
committed by Gary Russell
parent 75af72a77c
commit 8429424d46
18 changed files with 282 additions and 166 deletions
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3
spring-integration-xml/src/main/java/org/springframework/integration/xml/config/XPathHeaderEnricherParser.java
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@@ -26,6 +26,7 @@ import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.config.xml.AbstractTransformerParser;
import org.springframework.integration.config.xml.IntegrationNamespaceUtils;
import org.springframework.integration.xml.transformer.XPathHeaderEnricher;
import org.springframework.integration.xml.transformer.support.XPathExpressionEvaluatingHeaderValueMessageProcessor;
import org.springframework.util.StringUtils;
/**
@@ -61,7 +62,7 @@ public class XPathHeaderEnricherParser extends AbstractTransformerParser {
String elementName = node.getLocalName();
if ("header".equals(elementName)) {
BeanDefinitionBuilder builder =
BeanDefinitionBuilder.genericBeanDefinition(XPathHeaderEnricher.XPathExpressionEvaluatingHeaderValueMessageProcessor.class);
BeanDefinitionBuilder.genericBeanDefinition(XPathExpressionEvaluatingHeaderValueMessageProcessor.class);
String expressionString = headerElement.getAttribute("xpath-expression");
String expressionRef = headerElement.getAttribute("xpath-expression-ref");
boolean isExpressionString = StringUtils.hasText(expressionString);

87
spring-integration-xml/src/main/java/org/springframework/integration/xml/transformer/XPathHeaderEnricher.java
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@@ -18,24 +18,8 @@ package org.springframework.integration.xml.transformer;
import java.util.Map;
import org.w3c.dom.Node;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.integration.context.IntegrationContextUtils;
import org.springframework.integration.transformer.HeaderEnricher;
import org.springframework.integration.transformer.support.HeaderValueMessageProcessor;
import org.springframework.integration.util.BeanFactoryTypeConverter;
import org.springframework.integration.xml.DefaultXmlPayloadConverter;
import org.springframework.integration.xml.XmlPayloadConverter;
import org.springframework.integration.xml.xpath.XPathEvaluationType;
import org.springframework.messaging.Message;
import org.springframework.util.Assert;
import org.springframework.xml.xpath.XPathExpression;
import org.springframework.xml.xpath.XPathExpressionFactory;
import org.springframework.integration.xml.transformer.support.XPathExpressionEvaluatingHeaderValueMessageProcessor;
/**
* Transformer implementation that evaluates XPath expressions against the
@@ -44,7 +28,6 @@ import org.springframework.xml.xpath.XPathExpressionFactory;
*
* @author Jonas Partner
* @author Mark Fisher
* @author Artem Bilan
* @since 2.0
*/
public class XPathHeaderEnricher extends HeaderEnricher {
@@ -60,72 +43,4 @@ public class XPathHeaderEnricher extends HeaderEnricher {
}
public static class XPathExpressionEvaluatingHeaderValueMessageProcessor implements HeaderValueMessageProcessor<Object>,
BeanFactoryAware {
private static final XmlPayloadConverter converter = new DefaultXmlPayloadConverter();
private final BeanFactoryTypeConverter typeConverter = new BeanFactoryTypeConverter();
private final XPathExpression expression;
private volatile XPathEvaluationType evaluationType = XPathEvaluationType.STRING_RESULT;
private volatile TypeDescriptor headerTypeDescriptor;
private volatile Boolean overwrite = null;
public XPathExpressionEvaluatingHeaderValueMessageProcessor(String expression) {
Assert.hasText(expression, "expression must have text");
this.expression = XPathExpressionFactory.createXPathExpression(expression);
}
public XPathExpressionEvaluatingHeaderValueMessageProcessor(XPathExpression expression) {
Assert.notNull(expression, "expression must not be null");
this.expression = expression;
}
public void setEvaluationType(XPathEvaluationType evaluationType) {
this.evaluationType = evaluationType;
}
public void setHeaderType(Class<?> headerType) {
if (headerType != null) {
this.headerTypeDescriptor = TypeDescriptor.valueOf(headerType);
}
}
public void setOverwrite(Boolean overwrite) {
this.overwrite = overwrite;
}
@Override
public Boolean isOverwrite() {
return this.overwrite;
}
@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
ConversionService conversionService = IntegrationContextUtils.getConversionService(beanFactory);
if (conversionService != null) {
this.typeConverter.setConversionService(conversionService);
}
}
@Override
public Object processMessage(Message<?> message) {
Node node = converter.convertToNode(message.getPayload());
Object result = this.evaluationType.evaluateXPath(this.expression, node);
if (result instanceof String && ((String) result).length() == 0) {
result = null;
}
if (result != null && this.headerTypeDescriptor != null) {
return this.typeConverter.convertValue(result, TypeDescriptor.forObject(result), this.headerTypeDescriptor);
}
else {
return result;
}
}
}
}

109
spring-integration-xml/src/main/java/org/springframework/integration/xml/transformer/support/XPathExpressionEvaluatingHeaderValueMessageProcessor.java Normal file
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@@ -0,0 +1,109 @@
/*
* Copyright 2014 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.transformer.support;
import org.w3c.dom.Node;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.integration.context.IntegrationContextUtils;
import org.springframework.integration.transformer.support.HeaderValueMessageProcessor;
import org.springframework.integration.util.BeanFactoryTypeConverter;
import org.springframework.integration.xml.DefaultXmlPayloadConverter;
import org.springframework.integration.xml.XmlPayloadConverter;
import org.springframework.integration.xml.xpath.XPathEvaluationType;
import org.springframework.messaging.Message;
import org.springframework.util.Assert;
import org.springframework.xml.xpath.XPathExpression;
import org.springframework.xml.xpath.XPathExpressionFactory;
/**
* @author Jonas Partner
* @author Mark Fisher
* @author Artem Bilan
* @since 2.0
*/
public class XPathExpressionEvaluatingHeaderValueMessageProcessor implements HeaderValueMessageProcessor<Object>,
BeanFactoryAware {
private static final XmlPayloadConverter converter = new DefaultXmlPayloadConverter();
private final BeanFactoryTypeConverter typeConverter = new BeanFactoryTypeConverter();
private final XPathExpression expression;
private volatile XPathEvaluationType evaluationType = XPathEvaluationType.STRING_RESULT;
private volatile TypeDescriptor headerTypeDescriptor;
private volatile Boolean overwrite = null;
public XPathExpressionEvaluatingHeaderValueMessageProcessor(String expression) {
Assert.hasText(expression, "expression must have text");
this.expression = XPathExpressionFactory.createXPathExpression(expression);
}
public XPathExpressionEvaluatingHeaderValueMessageProcessor(XPathExpression expression) {
Assert.notNull(expression, "expression must not be null");
this.expression = expression;
}
public void setEvaluationType(XPathEvaluationType evaluationType) {
this.evaluationType = evaluationType;
}
public void setHeaderType(Class<?> headerType) {
if (headerType != null) {
this.headerTypeDescriptor = TypeDescriptor.valueOf(headerType);
}
}
public void setOverwrite(Boolean overwrite) {
this.overwrite = overwrite;
}
@Override
public Boolean isOverwrite() {
return this.overwrite;
}
@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
ConversionService conversionService = IntegrationContextUtils.getConversionService(beanFactory);
if (conversionService != null) {
this.typeConverter.setConversionService(conversionService);
}
}
@Override
public Object processMessage(Message<?> message) {
Node node = converter.convertToNode(message.getPayload());
Object result = this.evaluationType.evaluateXPath(this.expression, node);
if (result instanceof String && ((String) result).length() == 0) {
result = null;
}
if (result != null && this.headerTypeDescriptor != null) {
return this.typeConverter.convertValue(result, TypeDescriptor.forObject(result), this.headerTypeDescriptor);
}
else {
return result;
}
}
}

7
spring-integration-xml/src/main/java/org/springframework/integration/xml/transformer/support/package-info.java Normal file
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@@ -0,0 +1,7 @@
/**
* Contains support classes for Transformers.
*
* @since 3.0
*
*/
package org.springframework.integration.xml.transformer.support;