[jira] [Commented] (OLINGO-1060) Unable to retrieve a referenced metadata document referenced by Microsoft dynamics metadata document

["Sumit (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OLINGO-1060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823825#comment-15823825 ] 

Sumit commented on OLINGO-1060:
-------------------------------

[~rareddy] How about adding a method {{setAcceptForRelatedMetadataRequest}} (open to suggestions for the name) to {{XMLMetadataRequest}}. This accept header will be used while requesting the metadata document for referenced services. Please note that the same accept will be used for ALL the related document requests (we are not providing a way to setAccept for individual requests)

> Unable to retrieve a referenced metadata document referenced by Microsoft dynamics metadata document
> ----------------------------------------------------------------------------------------------------
>
>                 Key: OLINGO-1060
>                 URL: https://issues.apache.org/jira/browse/OLINGO-1060
>             Project: Olingo
>          Issue Type: Bug
>          Components: odata4-client
>    Affects Versions: (Java) V4 4.3.0
>            Reporter: Sumit
>
> Below is a sample metadata document as given by a microsoft dynamics instance
> {code}
> <?xml version="1.0" encoding="utf-8"?>
> <edmx:Edmx Version="4.0" xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx">
>     <edmx:Reference Uri="http://vocabularies.odata.org/OData.Community.Keys.V1.xml">
>         <edmx:Include Namespace="OData.Community.Keys.V1" Alias="Keys" />
>         <edmx:IncludeAnnotations TermNamespace="OData.Community.Keys.V1" />
>     </edmx:Reference>
>     <edmx:Reference Uri="http://vocabularies.odata.org/OData.Community.Display.V1.xml">
>         <edmx:Include Namespace="OData.Community.Display.V1" Alias="Display" />
>         <edmx:IncludeAnnotations TermNamespace="OData.Community.Display.V1" />
>     </edmx:Reference>
>     <edmx:DataServices>
>         <Schema Namespace="Microsoft.Dynamics.CRM" Alias="mscrm" xmlns="http://docs.oasis-open.org/odata/ns/edm">
>         <!-- Not showing the detailed entity types and other details as this information is irrelevant for current issue -->
>         </Schema>
>     </edmx:DataServices>
> </edmx:Edmx>
> {code}
> The referenced metadata document http://vocabularies.odata.org/OData.Community.Keys.V1.xml has 'Content-Type' header set to "text/xml" in response. But olingo's  AbstractMetadataRequestImpl[0] sets 'Accept' header to "application/xml" in the request for fetching the metadata document. As a result we get 406 response code (since the accept header does not contain the type as specified in the respone.
> Should "text/html" be added to Accept header of metadata request ? (I have tried and tested this solution)
> [0] - https://github.com/apache/olingo-odata4/blob/8515b48dd5e09e4597d0b396326bd6a074efa1f5/lib/client-core/src/main/java/org/apache/olingo/client/core/communication/request/retrieve/AbstractMetadataRequestImpl.java#L32



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