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https://issues.apache.org/jira/browse/HADOOP-3074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581598#action_12581598
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Doug Cutting commented on HADOOP-3074:
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This need not be specific to HDFS, but could be generic to any FileSystem
implementation, no? The FileSystem API subsumes Java's URL connection API. We
could even provide a generic URLStreamHandlerFactory.
http://java.sun.com/javase/6/docs/api/java/net/URL.html#setURLStreamHandlerFactory(java.net.URLStreamHandlerFactory)
Note that we might special-case the "file:" protocol, since the JVM already
includes an handler for that.
> URLStreamHandler for the DFS
> ----------------------------
>
> Key: HADOOP-3074
> URL: https://issues.apache.org/jira/browse/HADOOP-3074
> Project: Hadoop Core
> Issue Type: New Feature
> Components: util
> Reporter: Christophe Taton
> Assignee: Christophe Taton
> Fix For: 0.17.0
>
> Attachments: 3074-20080324a.patch
>
>
> This issue aims at providing a handler to resolve DFS URLs
> ("hdfs://host:port/file/to/path"), so that such URLs can be read using the
> URL API (mainly {{InputStream url.openStream()}}).
> This allows the use of a {{URLClassLoader}} which would serve classes
> directly from the DFS.
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