Hi, here is the problem I am trying to solve: I have couple web application
and each of them publishes an XFire web service using Spring.
<beans>
<bean id="federatedBean"
class="com.roh.oculus.ws.xfire.FederatedServiceImpl"/>
</beans>
<bean id="federated"
class="org.codehaus.xfire.spring.remoting.XFireExporter">
<property name="serviceFactory">
<ref bean="xfire.serviceFactory"/>
</property>
<property name="xfire">
<ref bean="xfire"/>
</property>
<property name="serviceBean">
<ref bean="federatedBean"/>
</property>
<property name="serviceClass">
<value>ws.xfire.FederatedService</value>
</property>
<property name="properties">
<map>
<entry>
<key><value>mtom-enabled</value></key>
<value>true</value>
</entry>
</map>
</property>
</bean>
My service ws.xfire.FederatedServiceImpl declares a method
public DataHandler getDocument(String guid) {
logger.debug("getDocument() start");
DataSource source = new FileDataSource("C:/temp/b5diagn.txt");
logger.debug("getDocument() finish");
return new DataHandler(source);
}
I have a java application which talks to all services. Clients are created
via spring remouting
<bean id="serviceMgr"
class="com.roh.oculus.globalization.WebServiceManager">
<property name="webServices">
<list>
<!-- <ref local="Oculus-Local"/> -->
<ref local="Oculus-Remote"/>
</list>
</property>
</bean>
<!-- XFire services
<bean id="Oculus-Local"
class="org.codehaus.xfire.spring.remoting.XFireClientFactoryBean">
<property name="serviceClass">
<value>com.roh.oculus.ws.xfire.FederatedService</value>
</property>
<property name="wsdlDocumentUrl"
value="http://192.168.253.59:8080/Oculus5/services/FederatedService?wsdl"/>
<property name="url"
value="http://192.168.253.59:8080/Oculus5/services/FederatedService"; />
<property name="lookupServiceOnStartup" value="false"/>
</bean>
-->
<bean id="Oculus-Remote"
class="org.codehaus.xfire.spring.remoting.XFireClientFactoryBean">
<property name="serviceClass">
<value>com.roh.oculus.ws.xfire.FederatedService</value>
</property>
<property name="wsdlDocumentUrl"
value="http://192.168.253.174:8080/Oculus5/services/FederatedService?wsdl"/>
<property name="url"
value="http://192.168.253.174:8080/Oculus5/services/FederatedService"; />
<property name="lookupServiceOnStartup" value="false"/>
<property name="properties">
<map>
<entry>
<key><value>mtom-enabled</value></key>
<value>true</value>
</entry>
<entry>
<key><value>urn:xfire:transport:http:chunking-enabled</value></key>
<value>true</value>
</entry>
</map>
</property>
</bean>
</beans>
If I call getDocument("xx") method I expect to receive a file and save it.
Here is how I am handling the request to remote web service:
for(FederatedService fs: getWebServices()) {
logger.debug("Loading document from service...");
DataHandler handler = fs.getDocument(guid);
logger.debug("Handler is here.....");
InputStream is = handler.getInputStream();
logger.debug("Inputstream is here");
if (is instanceof DeleteOnCloseFileInputStream) {
logger.debug("tell XFire not to delete the file");
((DeleteOnCloseFileInputStream)is).setDelete(false);
}
AttachmentDataSource attSource = (AttachmentDataSource)
handler.getDataSource();
File file = attSource.getFile();
logger.debug(file.getName()+"is downloaded on client side");
logger.debug("path to file: "+file.getAbsolutePath());
}
When my program locate an apporpriate service, it calls getDocument(), but
the call throws an exception..... The error log is follows:
[18 16:10:15.953] DEBUG [OFSModSearch] - Starting file download.....
[18 16:10:15.953] DEBUG [OFSModSearch] - Loading document from service...
Exception in thread "AWT-EventQueue-0"
org.codehaus.xfire.XFireRuntimeException: Exception while calling:
http://192.168.253.174:8080/Oculus5/services/FederatedService arguments:
java.lang.String : aa.aa |. Nested exception is
org.codehaus.xfire.fault.XFireFault: Fault: java.lang.NullPointerException
org.codehaus.xfire.fault.XFireFault: Fault: java.lang.NullPointerException
at org.codehaus.xfire.fault.XFireFault.createFault(XFireFault.java:89)
at org.codehaus.xfire.client.Client.onReceive(Client.java:391)
at
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:139)
at
org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:48)
at
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
at
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)
at org.codehaus.xfire.client.Invocation.invoke(Invocation.java:75)
at org.codehaus.xfire.client.Client.invoke(Client.java:335)
at
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
at org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
at $Proxy1.getDocument(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.codehaus.xfire.spring.remoting.XFireClientFactoryBean$ProxyInterceptor.invoke(XFireClientFactoryBean.java:604)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:209)
at $Proxy0.getDocument(Unknown Source)
at
com.roh.oculus.globalization.gui.OFSModSearch.downloadFile(OFSModSearch.java:380)
at
com.roh.oculus.globalization.gui.OFSModSearch.access$100(OFSModSearch.java:65)
at
com.roh.oculus.globalization.gui.OFSModSearch$3$1.run(OFSModSearch.java:364)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Caused by: java.lang.NullPointerException
at
org.codehaus.xfire.attachments.AttachmentUtil.getAttachment(AttachmentUtil.java:33)
at
org.codehaus.xfire.aegis.type.mtom.AbstractXOPType.readInclude(AbstractXOPType.java:58)
at
org.codehaus.xfire.aegis.type.mtom.AbstractXOPType.readObject(AbstractXOPType.java:45)
at
org.codehaus.xfire.aegis.AegisBindingProvider.readParameter(AegisBindingProvider.java:162)
at
org.codehaus.xfire.service.binding.AbstractBinding.read(AbstractBinding.java:206)
at
org.codehaus.xfire.service.binding.WrappedBinding.readMessage(WrappedBinding.java:50)
at
org.codehaus.xfire.soap.handler.SoapBodyHandler.invoke(SoapBodyHandler.java:42)
at
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)
at org.codehaus.xfire.client.Client.onReceive(Client.java:387)
... 28 more
It seems like I am doing something wrong. What is the error? How can I
receive a file from webservice?
Regards
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