Hi
What JDK, Camel and Karaf versions are you using?
The NPE may be an issue on JDK1.7 i think.
On Tue, Apr 17, 2012 at 9:32 AM, Subhanjan <subhanjanro...@gmail.com> wrote:
> Hi,
> I am very new to Apache-camel. Hence, plz pardon me if I ask very basic
> things. I am using this for converting csv files to xml file while creating
> the camel flow for file transfer.
>
> My code for RouteBuilder is:
>
> /package foo;
>
> import org.apache.camel.LoggingLevel;
>
> import org.apache.camel.builder.RouteBuilder;
>
> import org.apache.camel.dataformat.xstream.XStreamDataFormat;
> import org.apache.camel.spring.Main;
>
> import com.thoughtworks.xstream.XStream;
>
> public class MyRouteBuilder extends RouteBuilder {
>
> public static void main(String[] args) throws Exception {
> Main.main(args);
> }
>
> public void configure() {
>
> XStream xstream = new XStream();
>
> XStreamDataFormat xStreamDataFormat = new XStreamDataFormat();
>
> xStreamDataFormat.setXStream(xstream);
>
> System.out.println("hi");
> from("file://D:/deploy/csv?fileName=Book1.csv&noop=true")
> .unmarshal()
> .csv()
> .log(LoggingLevel.INFO, "unmarshall")
> .process(new CsvToXMLProcessor())
> .log(LoggingLevel.INFO, "after processing")
> .marshal(xStreamDataFormat)
> .log(LoggingLevel.INFO, "after marshalling")
> .to("file:target/csvoutput?fileName=test.xml");
>
> }
> }/
> My CsvToXMLProcessor class is:
>
> /package foo;
>
> import java.util.Iterator;
> import java.util.List;
>
> import org.apache.camel.Exchange;
> import org.apache.camel.Processor;
>
> public class CsvToXMLProcessor implements Processor {
>
> @Override
> public void process(Exchange exchange) throws Exception {
>
> List<List<String>> list = (List<List<String>>)
> exchange.getIn().getBody(List.class);
>
> for (Iterator<List<String>> it =
> list.iterator(); it.hasNext();) {
> // Split the content of the message into field
> List<String> message = it.next();
> System.out.println(message);
> }
> }
> } /
>
>
> My question is - 1) whenever I try to run it from main() by 'run as' option,
> it is creating output folder "csvoutput" & inside the desired xml - Fine!!!
>
> But, when I try to run 2nd time, it should overwrite the target file. But
> instead it is showing Null Pointer Exception like this:
>
> /Exception in thread "main"
> org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected
> exception parsing XML document from file
> [D:\workspace\FirstProject\target\classes\META-INF\spring\camel-context.xml];
> nested exception is java.lang.NullPointerException
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
> at
> org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:126)
> at
> org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:92)
> at
> org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
> at
> org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:467)
> at
> org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:397)
> at
> org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
> at
> org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
> at
> org.apache.camel.spring.Main.createDefaultApplicationContext(Main.java:185)
> at org.apache.camel.spring.Main.doStart(Main.java:139)
> at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:67)
> at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:54)
> at org.apache.camel.impl.MainSupport.run(MainSupport.java:136)
> at org.apache.camel.impl.MainSupport.run(MainSupport.java:322)
> at org.apache.camel.spring.Main.main(Main.java:72)
> at foo.MyRouteBuilder.main(MyRouteBuilder.java:39) --->* this is
> pointing
> to Main.main(args) in the code*Caused by: java.lang.NullPointerException
> at
> com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.checkOverrideProperties(Unknown
> Source)
> at
> com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.<init>(Unknown
> Source)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(Unknown
> Source)
> at
> com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(Unknown
> Source)
> at
> com.sun.xml.internal.bind.v2.runtime.property.ArrayReferenceNodeProperty.<init>(Unknown
> Source)
>
> & so on.........../
>
> Any idea what is my mistake here???
>
>
> Also, I forgot to mention another porblem
>
> 2) when I try to deploy this Fuse Project from servicemix-karaf command
> prompt by giving prompt as "features:install FirstProject" (FirstProject is
> the features-bundle name)
>
> it is reading the files & showing the message as I wrote in Processor class,
> but it is not producing any output file.
> it is like this:
> /karaf@root> features:install FirstProject
> karaf@root> hi
> [1, John, 25]
> [2, Subha, 23]
> [3, John, 25]
> [4, xyz, 23]/
>
> Then the cursor is blinking.
>
> Hence, I want to know anyone can help this? How to solve this 2 problems?
>
> Please make me out of this misery.. I am stuck for this since 2 days!!!
>
>
>
>
> --
> View this message in context:
> http://camel.465427.n5.nabble.com/Null-Pointer-Exception-and-servicemix-karaf-problems-tp5645869p5645869.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
--
Claus Ibsen
-----------------
CamelOne 2012 Conference, May 15-16, 2012: http://camelone.com
FuseSource
Email: cib...@fusesource.com
Web: http://fusesource.com
Twitter: davsclaus, fusenews
Blog: http://davsclaus.blogspot.com/
Author of Camel in Action: http://www.manning.com/ibsen/
