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From Mandy Chessell <mandy_chess...@uk.ibm.com>
Subject Re: Review Request 63503: ATLAS-1095 - Review of OCF - the Open Connector Framework
Date Mon, 04 Dec 2017 07:56:42 GMT


> On Nov. 30, 2017, 10:59 a.m., David Radley wrote:
> > om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ConnectorBroker.java
> > Lines 141 (patched)
> > <https://reviews.apache.org/r/63503/diff/2/?file=1887925#file1887925line141>
> >
> >     Maybe I have missed it - I am wondering how a user needs to get the class into
the classpath. I guess there will be some setup around establishing the runtime classpath
such that these classes can be resolved.
> 
> Mandy Chessell wrote:
>     We need the class object to create the instance of the connector provider.  This
call fails if the classname provided in the connection is not known to the JVM.  When new
connectors are added then the jars are added to the classpath of the JVM so that the call
resolves.  For Atlas, this will be managed in the server config - for other environments -
well it is up to the implementation.  However, it is possible that people get this wrong and
the OCF will experience failures in creating the ConnectorProvider instance.  We need to catch
these error and report them accurately.

The support for loading Jars for new connectors is in the OMAG Server component.


- Mandy


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https://reviews.apache.org/r/63503/#review192260
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On Nov. 10, 2017, 12:48 p.m., Mandy Chessell wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/63503/
> -----------------------------------------------------------
> 
> (Updated Nov. 10, 2017, 12:48 p.m.)
> 
> 
> Review request for atlas and Madhan Neethiraj.
> 
> 
> Repository: atlas
> 
> 
> Description
> -------
> 
> This patch contains the open connector framework code.  This code is located in the om-fwk-ocf
component and is described in JIRA https://issues.apache.org/jira/browse/ATLAS-1095
> 
> I have added a new patch to the Jira with fixes from Yao's comments.  Upgraded Maven
to 352 and rebuilt/rerun tests.
> 
> 
> Diffs
> -----
> 
>   om-fwk-ocf/README.md PRE-CREATION 
>   om-fwk-ocf/pom.xml PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/Connector.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ConnectorBase.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ConnectorBroker.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ConnectorProvider.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ConnectorProviderBase.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/ConnectionCheckedException.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/ConnectorCheckedException.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/OCFCheckedExceptionBase.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/OCFErrorCode.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/OCFRuntimeException.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/PropertyServerException.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/ffdc/README.md PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AdditionalProperties.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Analysis.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Annotation.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AnnotationStatus.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Annotations.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AssetDescriptor.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AssetDetail.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AssetPropertyBase.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AssetSummary.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/AssetUniverse.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Certification.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Certifications.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Classification.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Classifications.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Comment.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/CommentType.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Comments.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ConnectedAssetProperties.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Connection.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Connections.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ConnectorType.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/DerivedSchemaElement.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ElementHeader.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ElementType.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/EmbeddedConnection.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/EmbeddedConnections.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Endpoint.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ExternalIdentifier.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ExternalIdentifiers.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ExternalReference.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/ExternalReferences.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Feedback.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/InformalTag.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/InformalTags.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/KeyPattern.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/License.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Licenses.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Like.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Likes.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Lineage.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Location.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Locations.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/MapSchemaElement.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Meaning.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Meanings.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Note.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/NoteLog.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/NoteLogs.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Notes.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/PrimitiveSchemaElement.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/PropertyBase.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Rating.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Ratings.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Referenceable.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedAsset.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedAssetProperties.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedAssets.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedMediaReference.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedMediaReferences.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedMediaType.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/RelatedMediaUsage.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/Schema.java PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaAttribute.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaAttributeGUIDs.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaAttributes.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaElement.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaImplementationQueries.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaImplementationQuery.java
PRE-CREATION 
>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaLink.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/SchemaLinks.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/StarRating.java PRE-CREATION

>   om-fwk-ocf/src/main/java/org/apache/atlas/ocf/properties/VirtualConnection.java PRE-CREATION

>   om-fwk-ocf/src/test/java/org/apache/atlas/ocf/test/QuickTest.java PRE-CREATION 
>   om-fwk-ocf/src/test/java/org/apache/atlas/ocf/test/TestConnector.java PRE-CREATION

>   om-fwk-ocf/src/test/java/org/apache/atlas/ocf/test/TestConnectorProvider.java PRE-CREATION

> 
> 
> Diff: https://reviews.apache.org/r/63503/diff/2/
> 
> 
> Testing
> -------
> 
> Simple sniff test to create connectors.
> 
> 
> File Attachments
> ----------------
> 
> 0001-ATLAS-1095-initial-code-drop-for-OCF-with-fixes-from.patch
>   https://reviews.apache.org/media/uploaded/files/2017/11/10/ad9eae3c-bb68-4bdc-b6b9-62ba12f651a0__0001-ATLAS-1095-initial-code-drop-for-OCF-with-fixes-from.patch
> 
> 
> Thanks,
> 
> Mandy Chessell
> 
>


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