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[MWE] Error by executeWorkflow [message #524563]

Thu, 01 April 2010 12:33

MaximeLecourt

Messages: 108
Registered: February 2010
Location: France

Senior Member

Hello,

In a m2m and m2t project, I'm having trouble with my workflow.
I use a object model, which I transform into a relationnal model, and generate SQL code from that.

I get an error when trying to run it.

My workflow looks like this

Quote:

I believe the error is somewhere around the red part, as the workflow runned fine before I added that part.

When running it, I get the following error :

1 avr. 2010 14:03:10 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: Reader: Loading model from platform:/resource/src-gen/outModel.xmi
1 avr. 2010 14:03:10 org.eclipse.emf.mwe.core.WorkflowRunner executeWorkflow
GRAVE: java.io.IOException: The path '/src-gen/outModel.xmi' is unmapped
org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: java.io.IOException: The path '/src-gen/outModel.xmi' is unmapped

One day I shall master M2T, but that day has yet to come...

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Re: [MWE] Error by executeWorkflow [message #524746 is a reply to message #524563]

Fri, 02 April 2010 08:28

MaximeLecourt

Messages: 108
Registered: February 2010
Location: France

Senior Member

I didn't go far since yesterday, but things moved a bit.

In my workflow, first parapgraph is used to load the metamodels.
My problem is that later on, I think I need to specify which metamodel to use with what model.

<workflow>
	<property name="src-gen" value="src-gen" />
	<property name="relationnalmodel" value="src-gen/outModel.xmi" />

	<bean class="org.eclipse.emf.mwe.utils.StandaloneSetup">
		<platformUri value=".." />
		<!-- first ecore -->
		<registerEcoreFile value="platform:/resource/genCPP/src/metamodel/metamodel.ecore"/>
		<!-- second ecore -->
		<registerEcoreFile value="platform:/resource/genCPP/src/metamodel/relationnel.ecore" />
	</bean>
	
	<!--read the model -->
	<component class="org.eclipse.emf.mwe.utils.Reader">
		<uri value="src/Model.xmi" />
		<modelSlot value="model" />
	</component>
	
	<!--transform the model -->
	<component class="org.eclipse.xtend.XtendComponent">
		<metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel" />
		<invoke value="object2relationnal::object2relationnal::transform(model)"/>
		<outputSlot value="newModel"/>
	</component>
	
	<!--write the new model -->
	<component class="org.eclipse.emf.mwe.utils.Writer">
		<modelSlot value="newModel" />
		<uri value="${relationnalmodel}" />
	</component>
	
	<!-- load the new model and store it in slot 'model' -->
	<component class="org.eclipse.emf.mwe.utils.Reader">
		<uri value="${relationnalmodel}" />
		<modelSlot value="newModel" />
	</component>
	
	<!--once model is writen, generate SQL tables and SQL procedures-->
	<component class="org.eclipse.xpand2.Generator">
		<expand
			value="object2relationnal::SQL::main FOR Base" />
		<outlet path="${src-gen}" >
		</outlet>
	</component> 
	
</workflow>

Even with that warning, code is generated, but once I try tu use the model newly generated, I get another error

2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.WorkflowRunner logIssues
ATTENTION: [WARNING]: no metamodels specified (use 'metaModel' property)!(Element: -UNKNOWN-; Reported by: -UNKNOWN-)
2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: Reader: Loading model from src/Model.xmi

I'm still guessing, but once I try to load outModel.xmi (which I just generated), to do a model to text transformation, I think the workflow can't find the metamodel.

2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: XtendComponent: executing 'object2relationnal::object2relationnal'
2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: Writer: Writing model to src-gen/outModel.xmi
2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: Reader: Loading model from src-gen/outModel.xmi
2 avr. 2010 09:59:26 org.eclipse.emf.mwe.core.container.CompositeComponent internalInvoke
INFO: Generator: generating 'object2relationnal::SQL::main FOR Base' => src-gen
2 avr. 2010 09:59:26 org.eclipse.xtend.expression.AbstractExpressionsUsingWorkflowComponent invokeInternal
GRAVE: Error in Component  of type org.eclipse.xpand2.Generator: 
	EvaluationException : Couldn't find type or property 'Base'
	[64,4] on line 1 'Base'

Does someone understand where the problem lies ?

One day I shall master M2T, but that day has yet to come...

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