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https://issues.apache.org/jira/browse/CAMEL-11508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-11508.
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Resolution: Not A Problem
Assignee: Claus Ibsen
They are not used for <from> <to> etc but for EIPs such as splitter ,aggregator
etc that has attributes with boolean, int types where you want to use property
placeholders and then need to use the prop placeholder trick.
The from is just an uri as string type where you can use placeholders already.
> Why "from" xml element does not support custom attributes in spring xml?
> ------------------------------------------------------------------------
>
> Key: CAMEL-11508
> URL: https://issues.apache.org/jira/browse/CAMEL-11508
> Project: Camel
> Issue Type: Improvement
> Components: camel-spring
> Affects Versions: 2.19.1
> Reporter: Artem St
> Assignee: Claus Ibsen
> Labels: easyfix
>
> Hello,
> The definition of "from" element in camel-spring.xsd does not allow to use a
> custom attributes, because of there is no declared anyAttribute element.
> My opinion is that "from" element should allow to create user specific
> attributes same as "to" element (which has a <xs:anyAttribute
> namespace="##other" processContents="skip"/>
> in the definition)
> There is my route:
> <route id="722b2c5f">
> <from yuo:custom-attr="my custom attribute"
> uri="localmq://queueStart" />
> <to yuo:custom-attr="my custom attribute" uri="localmq://queue"/>
> </route>
> And Camel gives me exception on that route:
> org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line
> 47 in XML document from file [C:\Projects\server\main.xml] is invalid; nested
> exception is org.xml.sax.SAXParseException; lineNumber: 47; columnNumber: 83;
> cvc-complex-type.3.2.2: Attribute 'yuo:custom-attr' is not allowed to appear
> in element 'from'.
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:399)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:252)
> at
> org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127)
> at
> org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93)
> at
> org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
> at
> org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:613)
> at
> org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:514)
> ....
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: org.xml.sax.SAXParseException: cvc-complex-type.3.2.2: Attribute
> 'yuo:custom-attr' is not allowed to appear in element 'from'.
> at
> org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown
> Source)
> at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
> at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
> at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(Unknown
> Source)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.reportSchemaError(Unknown Source)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.processAttributes(Unknown Source)
> at
> org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown
> Source)
> at org.apache.xerces.impl.xs.XMLSchemaValidator.emptyElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
> at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
> at
> org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadDocument(XmlBeanDefinitionReader.java:429)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:391)
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