Problem with DOMResult - Content is not allowed in prolog

[dr_pompeii]

After to send some emails to the Castor committers

A friendly person just created a Castor Jira account for me

A JIRA account has been created for you at:

https://jira.codehaus.org

This is either because an administrator has created an account for you,
or because you have been assigned to an issue.

The JIRA created about Castor (done by myself) is
https://jira.codehaus.org/browse/CASTOR-3145

I hope this be reason of my situation about DOMResult, this was a weird day

Best Regards Oleg

[dr_pompeii]

Hello Oleg

A day of surprises. Really was not a bug. In JIRA Castor 1.3.1 is not available on MvnRepository
Said

Basically, the 'castor' artefact turns out to be the root POM of the complete project. If you are interested in e.g. XML data binding, please have a look at the castor-xml artefact, where you'll find all past releases.

Wondered why a simple message was not included somewhere, anyway

In Castor's mailing list I have the follow
Castor 1.3.1 is not available on MvnRepository
(seems Castor has a bug or its new 1.3.2 API has a new behaviour against 1.2, why?, see below my results)

Therefore I changed from

<!-- Castor -->
<dependency>
    <groupId>org.codehaus.castor</groupId>
    <artifactId>castor</artifactId>
    <version>1.2</version>
</dependency>
<!-- Castor - Xerces -->
<dependency>
    <groupId>xerces</groupId>
    <artifactId>xercesImpl</artifactId>
    <version>2.9.1</version>
</dependency>

To only to

<dependency>
    <groupId>org.codehaus.castor</groupId>
    <artifactId>castor-xml</artifactId>
    <version>1.3.2</version>
</dependency>

I got the same exception working with castor-xml and DOMResult!

2011-07-12 12:41:40,296 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@14a7a12]
[Headers={timestamp=1310492500296, id=fa7359ae-6384-4413-bc4b-1489603560be}]>

2011-07-12 12:41:40,296 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@14a7a12]
[Headers={timestamp=1310492500296, id=76f33ec9-05a3-4e9e-bbcf-66c000b4c2c8}]>

Exception in thread "main" 
org.springframework.integration.transformer.MessageTransformationException: 
failed to transform message
	at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
....

Caused by: org.springframework.oxm.UnmarshallingFailureException: 
Castor unmarshalling exception; 
nested exception is org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.springframework.oxm.castor.CastorMarshaller.convertCastorException(CastorMarshaller.java:487)
....

Caused by: org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.exolab.castor.xml.Unmarshaller.convertSAXExceptionToMarshalException(Unmarshaller.java:866)

Caused by: org.xml.sax.SAXParseException: 
Content is not allowed in prolog.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)

Now if I use this *Echo*

@Component
public class EchoTransformer {

	private static final Logger logger = LoggerFactory.getLogger(EchoTransformer.class);
	
	public Node showAsDOMNode(DOMResult domResult) {
		Node node = domResult.getNode();
		logger.info("*** asDOMNode");
		System.out.println(node);
		logger.info(node.toString());
		logger.info("***");
		return node;
	}
	public String showAsString(Object object) {
		String string = object.toString();
		System.out.println("** Log: Inside Transformer");
		System.out.println(string);
		logger.info("***");
		return string;
	}
	
}

Therefore I must work now in this way (I just created an altern file to add these changes about the new Transformer and re order the input/ouput channels for each transformer)

<int-xml:marshalling-transformer 
            marshaller="castorMarshaller"
	    result-type="DOMResult"
	    input-channel="input"
	    output-channel="xml"								 	
	/>
	 
<int:transformer input-channel="xml"
		       output-channel="dom"
		       ref="echoTransformer"
		       method="showAsDOMNode"
	/>
	 
<int-xml:unmarshalling-transformer 
            unmarshaller="castorMarshaller"
	    input-channel="xml-string"
	    output-channel="output"
/>
	
<int:object-to-string-transformer 
                input-channel="dom"
		output-channel="xml-string" />

I have the same exception shown above but showing now

2011-07-12 12:58:58,484 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@118fa47]
[Headers={timestamp=1310493538484, id=8d81c1a1-65dc-424c-b49f-1fcf37fb6cf7}]>

2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<*** asDOMNode>
[#document: null]
2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<[#document: null]>
2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<***>
2011-07-12 12:58:58,500 INFO 

[org.springframework.integration.handler.LoggingHandler] - 
<[Payload=[#document: null]]
[Headers={timestamp=1310493538500, id=8c224986-af14-4a00-98dd-4360254cd34d}]>
... Rest of the same exception shown above in red

Compare the second blue part shown above, with the second blue part shown below
I mean

2011-07-12 12:41:40,296 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@14a7a12]
[Headers={timestamp=1310492500296, id=76f33ec9-05a3-4e9e-bbcf-66c000b4c2c8}]>

vs

[org.springframework.integration.handler.LoggingHandler] - 
<[Payload=[#document: null]]
[Headers={timestamp=1310493538500, id=8c224986-af14-4a00-98dd-4360254cd34d}]>

Is null the DOMResult, why?

Now with this update about the new dependency, StringResult no work anymore, please read the next post

[dr_pompeii]

In the Beginning of this Thread

I shared

<int-xml:marshalling-transformer 
            marshaller="castorMarshaller"
	    result-type="StringResult"
	    input-channel="input"
	    output-channel="xml"									 								 	
	/>
...
<int:channel id="xml">
	<int:interceptors>
		<int:wire-tap channel="logger01"/>
	</int:interceptors>
</int:channel>
...

MessageChannel input = context.getBean("input", MessageChannel.class );
PollableChannel output = context.getBean("output", PollableChannel.class );
	
Cliente cliente = new Cliente();		
cliente.setNombres("Manuel");
cliente.setApellidos("Jordan");		
cliente.setEdad(30);		
cliente.setPeso(70.01);
cliente.setCredito(new BigDecimal("150.85"));
cliente.setFechaNacimiento( new Date());

Message<?> messageAltern01 = MessageBuilder.withPayload(cliente).build();
input.send(messageAltern01);
		
Message<?> replyAltern01 = output.receive();		
logger.info("Mensaje Recibido replyAltern01.toString(){}", replyAltern01.toString());

I got ( I am changing the presentation to let show the output friendly)

2011-07-11 12:19:30,329 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=<?xml version="1.0" encoding="UTF-8"?>
<cliente>
<apellidos>Jordan</apellidos>
<fecha-nacimiento>2011-07-11T12:19:29.923-05:00</fecha-nacimiento><nombres>Manuel</nombres>
<peso>70.01</peso>
<edad>30</edad>
<credito>150.85</credito>
</cliente>]
[Headers={timestamp=1310404770329, 
id=4c20555b-0e1b-4292-bdd9-4baa3d99e449}]>
....

Therefore, working really well with

<dependency>
  	<groupId>org.codehaus.castor</groupId>
    	<artifactId>castor</artifactId>
    	<version>1.2</version>
</dependency>				
<dependency>
    	<groupId>xerces</groupId>
    	<artifactId>xercesImpl</artifactId>
    	<version>2.9.1</version>
</dependency>

But now the same code shown above, but now only changing the maven dependency to work with the last version available (the shown below, replace both shown above)

<dependency>
   	<groupId>org.codehaus.castor</groupId>
    	<artifactId>castor-xml</artifactId>
    	<version>1.3.2</version>
</dependency>

I got now ( I am changing the presentation to let show the output friendly)
(Recall I am working with StringResult)

2011-07-12 13:39:21,437 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=<?xml version="1.0" encoding="UTF-8"?>
<cliente>
<apellidos>Jordan</apellidos>
<fecha-nacimiento>2011-07-12T13:39:21.265-05:00</fecha-nacimiento><nombres>Manuel</nombres>
<peso>70.01</peso>
<edad>30</edad>
<credito>150.85</credito>
</cliente>]
[Headers={timestamp=1310495961437, id=73efd912-3db3-4018-b628-b515908d7778}]>
Exception in thread "main" org.springframework.integration.transformer.MessageTransformationException: 
failed to transform message
	at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
...
Caused by: org.springframework.oxm.UnmarshallingFailureException: 
Castor unmarshalling exception; nested exception is
org.exolab.castor.xml.MarshalException: 
The class for the root element 'cliente' could not be found.{File: [not available]; line: 2; column: 10}
at org.springframework.oxm.castor.CastorMarshaller.convertCastorException(CastorMarshaller.java:487)
....
Caused by: org.exolab.castor.xml.MarshalException: 
The class for the root element 'cliente' could not be found.{File: [not available]; line: 2; column: 10}
	at org.exolab.castor.xml.Unmarshaller.convertSAXExceptionToMarshalException(Unmarshaller.java:866)
...
Caused by: org.xml.sax.SAXException: 
The class for the root element 'cliente' could not be found.
	at org.exolab.castor.xml.UnmarshalHandler.processFirstElement(UnmarshalHandler.java:890)

I assume, is it a bug, right? or some extra configuration now is madatory here

@Bean
public CastorMarshaller castorMarshaller(){
	return new CastorMarshaller();
}

I am out of ideas

Thanks in advanced for your support

[Mark Fisher]

Spring 3.0.5 is not intended to work with Castor 1.3.2. If you look in the POM, you will see version 1.2: http://repo1.maven.org/maven2/org/sp....5.RELEASE.pom

If you want to use Castor 1.3.2, you will need to use Spring 3.1 (currently at Milestone 2). Spring Integration will not *officially* support Spring 3.1 until Spring Integration's own 2.1 version. We will have an initial milestone of 2.1 very soon (likely in August).

-Mark

[dr_pompeii]

Hello Mark

Thank you for your concrete and valuable information, really I appreciate

Spring 3.0.5 is not intended to work with Castor 1.3.2. If you look in the POM, you will see version 1.2: http://repo1.maven.org/maven2/org/sp....5.RELEASE.pom

Interesting, I arrived here through the Maven Central searching with the term spring-oxm. More detailed information and other style presentation is used

Furthermore spring-oxm is a transitive dependency from spring-core. I did realize it belong before to Spring Web Services 1.5.x API

If you want to use Castor 1.3.2, you will need to use Spring 3.1 (currently at Milestone 2). Spring Integration will not *officially* support Spring 3.1 until Spring Integration's own 2.1 version. We will have an initial milestone of 2.1 very soon (likely in August).

Mmm, I see, I must wait

OK, then I must use again

<dependency>
    	<groupId>org.codehaus.castor</groupId>
    	<artifactId>castor</artifactId>
    	<version>1.2</version>
</dependency>				
<dependency>
 	<groupId>xerces</groupId>
    	<artifactId>xercesImpl</artifactId>
    	<version>2.9.1</version>
</dependency>

Therefore working with StringResult my code work again, but with DOMResult I have the problem yet

2011-07-12 12:58:58,484 INFO [org.springframework.integration.handler.LoggingHandler] - 
<[Payload=javax.xml.transform.dom.DOMResult@118fa47]
[Headers={timestamp=1310493538484, id=8d81c1a1-65dc-424c-b49f-1fcf37fb6cf7}]>

2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<*** asDOMNode>
[#document: null]
2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<[#document: null]>
2011-07-12 12:58:58,500 INFO [com.manuel.jordan.main.transformers.echo.EchoTransformer] - 
<***>
2011-07-12 12:58:58,500 INFO 

[org.springframework.integration.handler.LoggingHandler] - 
<[Payload=[#document: null]]
[Headers={timestamp=1310493538500, id=8c224986-af14-4a00-98dd-4360254cd34d}]>
Exception in thread "main" org.springframework.integration.transformer.MessageTransformationException: 
failed to transform message
	at org.springframework.integration.transformer.AbstractTransformer.transform(AbstractTransformer.java:44)
...

Caused by: org.springframework.oxm.UnmarshallingFailureException: 
Castor unmarshalling exception; nested exception is 
org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.springframework.oxm.castor.CastorMarshaller.convertCastorException(CastorMarshaller.java:487)
...

Caused by: org.exolab.castor.xml.MarshalException: 
Content is not allowed in prolog.{File: [not available]; line: 1; column: 1}
	at org.exolab.castor.xml.Unmarshaller.convertSAXExceptionToMarshalException(Unmarshaller.java:761)
...

Caused by: org.xml.sax.SAXParseException: 
Content is not allowed in prolog.
	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)

What would I do?

Thank you