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https://issues.apache.org/jira/browse/OLINGO-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13887706#comment-13887706
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Stephan Klevenz commented on OLINGO-140:
----------------------------------------
1) FunctionImports allow primitive parameter types and binary is a primitive
type. Answer is yes.
2) All parameters have to be part of URL and with that size is limited.
3) Olingo is working on client documentation
(https://issues.apache.org/jira/browse/OLINGO-136). This will be published
soon. For now see this code snipped:
public Edm readEdm(String serviceUrl) throws IOException, ODataException {
HttpURLConnection connection = connect("http://...service/$metadata";,
"application/xml", "GET");
return EntityProvider.readMetadata((InputStream) connection.getContent(),
false);
}
This works the same also for entries, feeds ...
> Function Import support for binary data
> ---------------------------------------
>
> Key: OLINGO-140
> URL: https://issues.apache.org/jira/browse/OLINGO-140
> Project: Olingo
> Issue Type: Question
> Affects Versions: V2 1.0.0
> Reporter: M Carissimi
> Assignee: Stephan Klevenz
>
> Hello,
> I have created a FucntionImport for one of my EnityTypes which has a single
> parameter of type Edm.Binary. This is how the FunctionImport is shown on the
> metedata:
> <FunctionImport Name="Import_Readings"
> ReturnType="esys_producer.ES_IMPORT_READINGS" EntitySet="ES_IMPORT_READINGS"
> m:HttpMethod="POST">
> <Parameter Name="Import File" Type="Edm.Binary"/>
> </FunctionImport>
> I now need to create an OData consumer which is able to invoke the
> FunctionImport. I have created an html form where a file can be uploaded
> which then invokes a Java servlet. The servlet uses odata4j to connect to the
> OData service and invokes the function. Unfortunately the odata4j library
> does not allow to set the property type as a byte array, which is what would
> be required for a Binary parameter.
> I now have a few questions:
> - is it OK to have Binary parameters in a FunctionImport?
> - when inoking a FunctionImport, do all the parameter values get set on the
> URL? If so, will the limit on size of a URL stop us from sending a large
> binary parameter to a FunctionImport?
> - how can I create a client similar to the one described above using the
> Olingo library?
> Regards
> Miki
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