How to fix: Unknown Source type: class javax.xml.transform.stax.StAXSource

[sanjeev m]

Hi,
I am trying to read an xml file using staxEventitemReader but i am getting following exception


java.lang.IllegalArgumentException: Unknown Source type: class javax.xml.transform.stax.StAXSource
at org.springframework.oxm.AbstractMarshaller.unmarsh al(AbstractMarshaller.java:146)
at org.springframework.batch.item.xml.StaxEventItemRe ader.doRead(StaxEventItemReader.java:233)
at org.springframework.batch.item.support.AbstractIte mCountingItemStreamItemReader.read(AbstractItemCou ntingItemStreamItemReader.java:85)
at org.springframework.batch.core.step.item.SimpleChu nkProvider.doRead(SimpleChunkProvider.java:90)
at org.springframework.batch.core.step.item.SimpleChu nkProvider.read(SimpleChunkProvider.java:148)
at org.springframework.batch.core.step.item.SimpleChu nkProvider$1.doInIteration(SimpleChunkProvider.jav a:108)
at org.springframework.batch.repeat.support.RepeatTem plate.getNextResult(RepeatTemplate.java:367)
at org.springframework.batch.repeat.support.RepeatTem plate.executeInternal(RepeatTemplate.java:214)
at org.springframework.batch.repeat.support.RepeatTem plate.iterate(RepeatTemplate.java:143)
at org.springframework.batch.core.step.item.SimpleChu nkProvider.provide(SimpleChunkProvider.java:103)
at org.springframework.batch.core.step.item.ChunkOrie ntedTasklet.execute(ChunkOrientedTasklet.java:68)
at org.springframework.batch.core.step.tasklet.Taskle tStep$ChunkTransactionCallback.doInTransaction(Tas kletStep.java:386)
at org.springframework.transaction.support.Transactio nTemplate.execute(TransactionTemplate.java:130)
at org.springframework.batch.core.step.tasklet.Taskle tStep$2.doInChunkContext(TaskletStep.java:264)
at org.springframework.batch.core.scope.context.StepC ontextRepeatCallback.doInIteration(StepContextRepe atCallback.java:76)
at org.springframework.batch.repeat.support.RepeatTem plate.getNextResult(RepeatTemplate.java:367)
at org.springframework.batch.repeat.support.RepeatTem plate.executeInternal(RepeatTemplate.java:214)
at org.springframework.batch.repeat.support.RepeatTem plate.iterate(RepeatTemplate.java:143)
at org.springframework.batch.core.step.tasklet.Taskle tStep.doExecute(TaskletStep.java:250)
at org.springframework.batch.core.step.AbstractStep.e xecute(AbstractStep.java:195)
at org.springframework.batch.core.job.SimpleStepHandl er.handleStep(SimpleStepHandler.java:135)
at org.springframework.batch.core.job.flow.JobFlowExe cutor.executeStep(JobFlowExecutor.java:61)
at org.springframework.batch.core.job.flow.support.st ate.StepState.handle(StepState.java:60)
at org.springframework.batch.core.job.flow.support.Si mpleFlow.resume(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.support.Si mpleFlow.start(SimpleFlow.java:124)
at org.springframework.batch.core.job.flow.FlowJob.do Execute(FlowJob.java:135)
at org.springframework.batch.core.job.AbstractJob.exe cute(AbstractJob.java:281)
at org.springframework.batch.core.launch.support.Simp leJobLauncher$1.run(SimpleJobLauncher.java:120)
at org.springframework.core.task.SyncTaskExecutor.exe cute(SyncTaskExecutor.java:48)
at org.springframework.batch.core.launch.support.Simp leJobLauncher.run(SimpleJobLauncher.java:114)
at spring.batch.BatchLauncher.main(BatchLauncher.java :67)

Here is My configuration readXml.txt
file attached, i am getting this exception while reading Attachment 5386 xml



Thanks in advance..
Sanjeev

[mminella]

Your XML file didn't save. Can you please post, inline, a snip of the file?

[sanjeev m]

Hi minella,

Here is xml which i was trying to read

<?xml version="1.0" encoding="UTF-8"?>
<records>
    <trade xmlns="http://springframework.org/batch/sample/io/oxm/domain">
        <isin>XYZ0001</isin>
        <quantity>5</quantity>
        <price>11.39</price>
        <customer>Customer1</customer>
    </trade>
    <trade xmlns="http://springframework.org/batch/sample/io/oxm/domain">
        <isin>XYZ0002</isin>
        <quantity>2</quantity>
        <price>72.99</price>
        <customer>Customer2c</customer>
    </trade>
    <trade xmlns="http://springframework.org/batch/sample/io/oxm/domain">
        <isin>XYZ0003</isin>
        <quantity>9</quantity>
        <price>99.99</price>
        <customer>Customer3</customer>
    </trade>
</records>

[mminella]

Looking at this, I didn't see anything obviously wrong so I pulled it into my workspace. I tweaked the readText.xml file to what I have pasted below (essentially just stripping out the parts that shouldn't impact the read) and ran it against the snip you included in the previous post. When I ran that, the job ran fine (no exceptions). If you have a unit test that I can recreate the error with, I'd be more than happy to take a second look.

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:batch="http://www.springframework.org/schema/batch"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:util="http://www.springframework.org/schema/util"

	xsi:schemaLocation="
		http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.1.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-2.5.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd">

	<description>Papillon Accounting Batch</description>

	<import resource="../launch-context.xml" />

	<batch:job id="xmlReadJob" restartable="true">
	    <batch:step id="processStuffHoldings">
	        <batch:tasklet>
	            <batch:chunk reader="stuffReader" writer="stuffWriter" commit-interval="1"/>
	        </batch:tasklet>
	    </batch:step>
	</batch:job>

	<bean id="stuffWriter" class="org.springframework.batch.item.xml.StaxEventItemWriter">
    	    <property name="resource">
	        <bean class="org.springframework.core.io.FileSystemResource">
		    <constructor-arg value="/tmp/customerProcessed.xml"/>
		</bean>
    	    </property>
     	    <property name="marshaller" ref="stuffUnmarshaller" />
    	    <property name="rootTagName" value="trades" />
	</bean>


	<bean id="stuffReader" class="org.springframework.batch.item.xml.StaxEventItemReader">
	    <property name="fragmentRootElementName" value="trade" />
	    <property name="resource" value="classpath:/data/forumIssue.xml" />
	    <property name="unmarshaller" ref="stuffUnmarshaller" />
	</bean>

	<bean id="stuffUnmarshaller"
	      class="org.springframework.oxm.xstream.XStreamMarshaller">
	    <property name="aliases">
	        <util:map id="aliases">
	            <entry key="trade"
	                   value="org.springsource.batch.domain.Trade" />
	            <entry key="priceWrong" value="java.math.BigDecimal" />
	            <entry key="name" value="java.lang.String" />
	        </util:map>
	    </property>
	</bean>
</beans>

[sanjeev m]

Hi minella,

when i run it through commandline jobrunner.. no exception , no output but
when i run the same through class containg main method i am getting exception mentioned above

application context xml that i am importing applicationContextXml.txt
Here my class with main method

public class BatchLauncher {

	public static Job job ;
	public static JobLauncher jobLauncher;
	public static JobRepository jobRepository;
	public static String P_covStrDate = null;
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try { 
			
			
			AbstractApplicationContext applicationContext = new ClassPathXmlApplicationContext("readXmlConfig.xml");   
			JobParametersBuilder builder = new JobParametersBuilder();   
			
			System.out.println("Entering.. main method of  BatchLauncher ");  
			builder.addString("Date", "20/12/2012");  
			jobLauncher = (JobLauncher) applicationContext.getBean("jobLauncher");
			jobRepository = (JobRepository) applicationContext.getBean("jobRepository");
			job = (Job) applicationContext.getBean("xmlReadJob");
			jobLauncher.run(job, builder.toJobParameters()); 
			JobExecution jobExecution = jobRepository.getLastJobExecution(job.getName(), builder.toJobParameters());
			System.out.println("Execution Status :: in main method of  BatchLauncher "+jobExecution.toString());
		} catch(Exception e) {        
			e.printStackTrace();   
		} 

	}

	/**
     * Method to get CurrentDate
     * @param String processDate
     * @return   
     */
	private static java.sql.Date getCurrentDate(String covrStrdate) {
		@SuppressWarnings("deprecation")
		java.util.Date today = new java.util.Date(covrStrdate);
		return new java.sql.Date(today.getTime());
	}
	
	public static Job getJob() {
		return job;
	}

	public static void setJob(Job job) {
		BatchLauncher.job = job;
	}

	public static JobLauncher getJobLauncher() {
		return jobLauncher;
	}

	public static void setJobLauncher(JobLauncher jobLauncher) {
		BatchLauncher.jobLauncher = jobLauncher;
	}

	public static JobRepository getJobRepository() {
		return jobRepository;
	}

	public static void setJobRepository(JobRepository jobRepository) {
		BatchLauncher.jobRepository = jobRepository;
	}

}

[mminella]

Two things:

1. Please use formatting when posting code. It makes it much easier to read and copy.
2. I know you're not going to like this, but I pulled in the main class you posted above, pointed it at the job definition I posted above…and it worked without error (I just ran it as a java application from STS).

If you have a unit test that I can try that consistently recreates the error, I'd be more than happy to give it another try.

[sanjeev m]

Thanks minella..

I deleted everything and started from scratch to read from xml now its working, sad thing is i didnt get what was the actual problem.

Hi have a doubt, Is it possible to read the complex xml using staxEventItemreader..?
when i tried to read complex xml i am getting null value and in google i found many people saying
staxEventItemreader cant be used for complex xml so we need to go for custom reader..

Thanks in advance
sanjeev

[mminella]

Sanjeev,

The StaxEventItemReader can read any XML I've ever tried to read with it. You may need to use advanced configurations to get everything mapped correctly, but I am unaware of a scenario that it would be unable to handle. Is there a particular scenario that you are concerned with?

[sanjeev m]

I am happy to hear that. Here is my xml

<?xml version="1.0" encoding="UTF-8"?>
<!--DOCTYPE aim SYSTEM "MyMsg.dtd"> -->
<MyMsg Status="Live">
    <MID>700</MID>
    <MIssueDate>20110421000008</MIssueDate>
    <MSender>snjeev</MSender>
    <MRecipient>sajal</MRecipient>
    <aim Source="C" Double="N" TeaParty="N" Deal="N">
        <aid IdScope="Sender">20110421000008</aid >
        <Pnt>
            <StructPersonName>
                <FName>Shivu</FName>
                <GName>kandratti</GName>
            </StructPersonName>
            <Cr>
                <RNo>069632</RNo>
            </Cr>
            <Sex>2</Sex>
            <Date>19600401</Date>
            <Address_u>
                <PostCode>582112</PostCode>
                <UnstructAddress>
                    <UnstructAddressLine>kabban park street</UnstructAddressLine>
                    <UnstructAddressLine>shivaji nagar</UnstructAddressLine>
                    <UnstructAddressLine>dharwad</UnstructAddressLine>
                </UnstructAddress>
            </Address_u>
            <GP>
                <UnstructPersonName>DR HALLAPPA</UnstructPersonName>
                <Address_u>
                    <PostCode>582118</PostCode>
                    <UnstructAddress>
                        <UnstructAddressLine>Shanti nivasa</UnstructAddressLine>
                        <UnstructAddressLine>nagarbhavi</UnstructAddressLine>
                        <UnstructAddressLine>.</UnstructAddressLine>
                        <UnstructAddressLine>kavishaila</UnstructAddressLine>
                    </UnstructAddress>
                </Address_u>
            </GP>
        </Pnt>
        <EDetail>
            <BowlingSpecialist Scheme="9BU01">03055890</BowlingSpecialist >
            <Setting>I</Setting>
            <TH Scheme="9BU01">60010490</TH>
            <Di/>
        </EDetail>
        <IDetail>
            <INo>2208</INo>
            <IDate>20080116</IDate>
            <PNo Scheme="9BU01">03055890</PNo >
            <CAscore>45.00</CAscore>
            <FromDate>20080116000000</FromDate>
            <ToDate>20080116000000</ToDate>
            <IRef>2208</IRef>
            <ACode>1463134</ACode>
            <GTotal>45.00</GTotal>
        </IDetail>
        <Setem>
            <aid IdScope="aim">1</aid >
            <ISCode>C0000180</ISCode>
            <FD>20080116</FD>
            <LD>20080116</LD>
            <PNo Scheme="9BU01">03055890</PNo>
            <Units>1</Units>
            <Setting>I</Setting>
            <NTotal>45.00</NTotal>
            <Description>Railway station</Description>
            <GTotal>45.00</GTotal>
            <DTotal>.00</DTotal>
            <Vtotal>.00</Vtotal>
            <Vind>0</Vind>
            <Vrate>.00</Vrate>
        </Setem>
        <SignatureTune>2</SignatureTune>
    </aim>
</MyMsg>

Here i am able to read MId,MIssueDate,MSender, for 'aim' i am getting object with null values.

[mminella]

Have you configured your unmarshaller for the various mappings needed (for example, mapping the aim tag to a particular class)?