[OLINGO-1197] Support for predefinedNamespaces in Edm Metadata

• Type: New Feature
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: (Java) V4 4.4.0
• Component/s: odata2-annotation
• Assignee: Unassigned
• Reporter: Michael Jung
• Created: 24/Oct/17 13:40
• Updated: 24/Oct/17 13:40

Description

Hi,

org.apache.olingo.odata2.core.ep.producer.XmlMetadataProducer.getMetadata is called from org.apache.olingo.odata2.core.edm.provider.EdmServiceMetadataImplProv.getMetadata always without handing over predefinedNamespace.

This produces ugly metadata as the namespace is repeated in all properties, e.g.:
<Property xmlns:sap="http://www.sap.com/Protocols/SAPData" Name="ID" Type="Edm.String" sap:label="Identifier"/>
<Property xmlns:sap="http://www.sap.com/Protocols/SAPData" Name="DESC" Type="Edm.String" Nullable="true" sap:label="Description"/>

I would see a possible fix in the addition of a getPredefinedNamespace method in the EdmProvider class, and calling this in EdmServiceMetadataImplProv.getMetadata to provide it to the XmlMetadataProducer. I do not fully grasp the usage of EdmProvider