Error during retrieving netsuite search result - netsuite

Question

I am trying to search a contact from netsuite. what i basically do is, creating a search criteria with email as parameter and trying to retrieve the result and then map it to object to xml transformer. But I am getting following error as :
Could not call java.util.concurrent.CopyOnWriteArrayList.writeObject() : Cannot marshal the XStream instance in action
The mule flow i am using as follows:
<flow name="contact_searchFlow">
<http:listener config-ref="HTTP_Request_Configuration" path="/basicContactSearch" doc:name="HTTP"/>
<logger message="Test1" level="INFO" doc:name="Logger"/>
<component class="netsuitews.ContactBasicSearchComponent" doc:name="Search Contact Basic criteria"/>
<logger message="Test 2" level="INFO" doc:name="Logger"/>
<netsuite:search config-ref="NetSuite__Request_Level_Authentication" searchRecord="CONTACT_BASIC" fetchSize="5" doc:name="Contact Basic Search"/>
<logger message="Test3" level="INFO" doc:name="Logger"/>
<mulexml:object-to-xml-transformer doc:name="Object to XML"/>
<logger message="Test4" level="INFO" doc:name="Logger"/>
The search component i am using as follows:
public class ContactBasicSearchComponent implements Callable {
public Object onCall(MuleEventContext eventContext) throws Exception {
ContactSearchBasic searchCriteria = new ContactSearchBasic();
SearchStringField nameFilter = new SearchStringField();
nameFilter.setOperator(SearchStringFieldOperator.IS);
nameFilter.setSearchValue("test_shutterFly#gmail.com");
searchCriteria.setEmail(nameFilter);
return searchCriteria;
}
#Override
public Object call() throws Exception {
// TODO Auto-generated method stub
return null;
}
}
I am using NetSuite Connector (Mule 3.5+) version 7.1.0.201603151241 and running in mule 3.8.0 EE version.
Here is the stack trace i got from mule logs.
2016-08-18 20:41:26,181 [netsuitews].HTTP_Request_Configuration.worker.01] INFO org.mule.api.processor.LoggerMessageProcessor - Test1
2016-08-18 20:41:26,194 [[netsuitews].HTTP_Request_Configuration.worker.01] INFO org.mule.api.processor.LoggerMessageProcessor - Test 2
2016-08-18 20:41:37,668 [[netsuitews].HTTP_Request_Configuration.worker.01] INFO org.mule.api.processor.LoggerMessageProcessor - Test3
2016-08-18 20:41:43,761 [[netsuitews].HTTP_Request_Configuration.worker.01] ERROR org.mule.exception.DefaultMessagingExceptionStrategy -
********************************************************************************
Message : Could not call java.util.concurrent.CopyOnWriteArrayList.writeObject() : Cannot marshal the XStream instance in action
-------------------------------
message : Could not call java.util.concurrent.CopyOnWriteArrayList.writeObject()
cause-exception : com.thoughtworks.xstream.converters.ConversionException
cause-message : Cannot marshal the XStream instance in action
(com.thoughtworks.xstream.converters.ConversionException).
Payload : org.mule.streaming.ConsumerIterator#7dbf934e
Element XML : <mulexml:object-to-xml-transformer doc:name="Object to XML"></mulexml:object-to-xml-transformer>
Payload Type : org.mule.streaming.ConsumerIterator
Element : /contact_searchFlow/processors/5 # netsuitews:customer_crud.xml:61 (Object to XML)
Root Exception stack trace:
com.thoughtworks.xstream.converters.ConversionException: Cannot marshal the XStream instance in action
at com.thoughtworks.xstream.core.util.SelfStreamingInstanceChecker.marshal(SelfStreamingInstanceChecker.java:59)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:250)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:226)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.<init>(AbstractReflectionConverter.java:189)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:135)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:83)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:84)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:250)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:226)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.<init>(AbstractReflectionConverter.java:189)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:135)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:83)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:88)
at
.
.
.
Could you please help on this!

Answer 1

That conversion exception occurs because the NetSuite Search operation is a processor that implements Pagination. Therefore, the resulting payload is of type ConsumerIterator. The Object to XML transformer cannot directly convert that iterator to XML. You need to extract its contents first in order to manipulate it. One option is to convert the data to a List and then apply the XML transformer. For example:
#[org.apache.commons.collections.IteratorUtils.toList(payload)]
Then your flow would look like this:
<flow>
...
<netsuite:search config-ref="NetSuite__Request_Level_Authentication" searchRecord="CONTACT_BASIC" fetchSize="5" doc:name="NetSuite"/>
<set-payload value="#[org.apache.commons.collections.IteratorUtils.toList(payload)]" doc:name="Set Payload"/>
<mulexml:object-to-xml-transformer doc:name="Object to XML"/>
</flow>
Additionally, I suggest you use DataWeave to build the input data for NetSuite instead of using the Java component to set the search criteria.
<dw:transform-message doc:name="Transform Message">
<dw:set-payload><![CDATA[%dw 1.0
%output application/java
---
{
email: {
operator: "IS",
searchValue: "test_shutterFly#gmail.com"
}
} as :object {
class : "com.netsuite.webservices.platform.common.ContactSearchBasic"
}
]]></dw:set-payload>
</dw:transform-message>
The final flow would look similar to: