SDO created with wrong type & errors on deserialization
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Key: TUSCANY-3708
URL: https://issues.apache.org/jira/browse/TUSCANY-3708
Project: Tuscany
Issue Type: Bug
Components: Java SDO Implementation
Affects Versions: Java-SDO-1.1
Environment: Tuscany 1.6 resp 1.7 snapshot, JDK 1.6.0_21, Eclipse
Helios, Windows XP
Reporter: Sebastian Millies
Attachments: test.zip
Creation of static SDOs for which classes have been generated from XSD does not
work as expected.
In particular, I created a data object for a type which has a statically
generated class, but unexpectedly
got back an instance of DynamicDataObjectImpl.
A trelated error maybe that even when I create the static SDO directly from the
factory, when I later
try to return it over an XMI binding, I get a PackageNotFoundException.
Here are the details:
I created the types using XSD2JavaGenerator from this XSD:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://psp.softwareag.com/catalogBaseType";
xmlns:catalogBaseType="http://psp.softwareag.com/catalogBaseType";>
<complexType name="CatalogBaseType">
<attribute name="id" type="string"></attribute>
<attribute name="catalogID" type="string"></attribute>
<attribute name="fileName" type="string"></attribute>
<attribute name="catalogName" type="string"></attribute>
<attribute name="catalogStatus" type="string"></attribute>
<attribute name="supplierID" type="string"></attribute>
<attribute name="eclassVersion" type="string"></attribute>
</complexType>
<element name="catalogBaseType"
type="catalogBaseType:CatalogBaseType"></element>
</schema>
The classes get generated in package com.softwareag.psp.catalog.base.type. I
generated no interfaces ( I
ran XSD2JavaGenerator with the following options: -noInterfaces
-noNotification -noUnsettable -prefix).
I have called the generated factory CatalogBaseTypeFactory.
Then in my coding (SCA service implementation) I do the following:
a) statically register the factory with the default context
static {
helperContext = HelperProvider.getDefaultContext();
CatalogBaseTypeFactory.INSTANCE.register( helperContext );
}
b) create a data object from the targetNamespace of the XSD and the type name
DataObject obj = helperContext.getDataFactory().create(
"http://psp.softwareag.com/catalogBaseType";, "CatalogBaseType");
Unexpectedly obj is an instance of DynamicDataObjectImpl, where I would have
expected an instance
of CatalogBaseType instead.
When I call the service that returns this SDO using a Java RMI client, I also
get an exception when trying to
deserialize the dynamic data object:
org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Package with uri
'http://psp.softwareag.com/catalogBaseType' not found. (http:///temp.xml, 5, 24)
which is caused by an underlying
org.eclipse.emf.ecore.xmi.PackageNotFoundException.
(see also my previous post with subject "SDO deserialization error")
This exception also occurs when I use a SDO of the correct type created with a
call to the CatalogBaseTypeFactory.
Frank Budinsky commented on this on the mailing list:
>From: Frank Budinsky [mailto:[email protected]]
>Sent: Thursday, October 07, 2010 3:30 PM
>To: [email protected]
>Subject: Re: SDO instance creation and deserialization error
>
>I think that should work, so my only guess is that maybe the SCA component and
>runtime are not using the same classLoader and/or >HelperContext (scope).
>Maybe someone with more SCA knowledge can help.
>
>Frank.
However, I suppose that the first problem (wrong type of SDO created) probably
is not connected to SCA,
because there is no SCA code involved. It doesn't matter for this problem what
context the SCA runtime
uses, because I use the default SDO context directly when registering the
Factory and creating
the SDO.
The second problem (the PackageNotFoundException upon deserialization) may
have to do with SCA,
because there is a mediating SCA transformer.
I attach an Eclipse project with the xsd, the generated classes and a test case.
When you start the com.softwareag.DataServiceLauncher with assertions enabled
(-ea) and then run
com.softwareag.client.DataServiceRMITest, you will see
a) the AssertionError in com.softwareag.impl.DataServiceImpl for the SDO with
unexpected type in test case testGetData()
b) the Exception on the client side when trying to receive the static SDO in
test case testGetCatalogData()
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