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https://issues.apache.org/jira/browse/TINKERPOP-1608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15831918#comment-15831918
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ASF GitHub Bot commented on TINKERPOP-1608:
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Github user pluradj commented on the issue:
https://github.com/apache/tinkerpop/pull/501
Created https://issues.apache.org/jira/browse/TINKERPOP-1608
> TP2-to-TP3 GraphML XSLT
> -----------------------
>
> Key: TINKERPOP-1608
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1608
> Project: TinkerPop
> Issue Type: Improvement
> Components: io
> Affects Versions: 3.1.5, 3.2.3
> Reporter: Jason Plurad
>
> There were some changes in the GraphML format between TinkerPop 2 and
> TinkerPop 3. [~joshsh] has [started
> work|https://github.com/apache/tinkerpop/pull/501] on an XSLT to transform
> between the two formats.
> I performed an initial test of the transform using this code within the
> Gremlin Console.
> {noformat}
> import javax.xml.parsers.DocumentBuilderFactory
> import javax.xml.transform.TransformerFactory
> import javax.xml.transform.dom.DOMSource
> import javax.xml.transform.stream.StreamSource
> import javax.xml.transform.stream.StreamResult
> stylesheet = new File('/tmp/tp-graphml-convert.xslt')
> datafile = new File('/tmp/tp2-graphml.xml')
> outfile = new File('/tmp/tp3-graphml.xml')
> factory = DocumentBuilderFactory.newInstance()
> builder = factory.newDocumentBuilder()
> document = builder.parse(datafile)
> tFactory = TransformerFactory.newInstance()
> stylesource = new StreamSource(stylesheet)
> transformer = tFactory.newTransformer(stylesource)
> source = new DOMSource(document)
> result = new StreamResult(new FileWriter(outfile))
> transformer.transform(source, result)
> {noformat}
> There are still some remaining changes required for compatibility.
> These keys need to be defined:
> {noformat}
> <key attr.name="labelV" attr.type="string" for="node" id="labelV"/>
> <key attr.name="labelE" attr.type="string" for="edge" id="labelE"/>
> {noformat}
> A vertex label needs to be inserted on all nodes. Vertex labels are new in
> TP3. Not sure if this is required by the TP3 parser:
> {noformat}
> <data key="labelV">vertex</data>
> {noformat}
> The edge label needs to move from the edge tag to a nested child tag:
> {noformat}
> <data key="labelE">created</data>
> {noformat}
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