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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8653) FTPFileSystem rename broken
Date Fri, 07 Sep 2012 21:08:08 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-8653:
----------------------------------

    Fix Version/s:     (was: 2.0.1-alpha)
                   3.0.0
    
> FTPFileSystem rename broken
> ---------------------------
>
>                 Key: HADOOP-8653
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8653
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.20.2, 2.0.0-alpha
>            Reporter: Karel Kolman
>             Fix For: 3.0.0
>
>         Attachments: HDFS-8653-1.patch
>
>
> The FTPFileSystem.rename(FTPClient client, Path src, Path dst) method is broken.
> The changeWorkingDirectory command underneath is being passed a string with file:// uri
prefix (which FTP server does not understand obviously)
> {noformat}
> INFO [2012-08-06 12:59:39] (DefaultSession.java:297) - Received command: [CWD ftp://localhost:61246/tmp/myfile]
>  WARN [2012-08-06 12:59:39] (AbstractFakeCommandHandler.java:213) - Error handling command:
Command[CWD:[ftp://localhost:61246/tmp/myfile]]; org.mockftpserver.fake.filesystem.FileSystemException:
/ftp://localhost:61246/tmp/myfile
> org.mockftpserver.fake.filesystem.FileSystemException: /ftp://localhost:61246/tmp/myfile
> 	at org.mockftpserver.fake.command.AbstractFakeCommandHandler.verifyFileSystemCondition(AbstractFakeCommandHandler.java:264)
> 	at org.mockftpserver.fake.command.CwdCommandHandler.handle(CwdCommandHandler.java:44)
> 	at org.mockftpserver.fake.command.AbstractFakeCommandHandler.handleCommand(AbstractFakeCommandHandler.java:76)
> 	at org.mockftpserver.core.session.DefaultSession.readAndProcessCommand(DefaultSession.java:421)
> 	at org.mockftpserver.core.session.DefaultSession.run(DefaultSession.java:384)
> 	at java.lang.Thread.run(Thread.java:680)
> {noformat}
> The solution would be this:
> {noformat}
> --- a/FTPFileSystem.java
> +++ b/FTPFileSystem.java
> @@ -549,15 +549,15 @@ public class FTPFileSystem extends FileSystem {
>        throw new IOException("Destination path " + dst
>            + " already exist, cannot rename!");
>      }
> -    String parentSrc = absoluteSrc.getParent().toUri().toString();
> -    String parentDst = absoluteDst.getParent().toUri().toString();
> +    URI parentSrc = absoluteSrc.getParent().toUri();
> +    URI parentDst = absoluteDst.getParent().toUri();
>      String from = src.getName();
>      String to = dst.getName();
> -    if (!parentSrc.equals(parentDst)) {
> +    if (!parentSrc.toString().equals(parentDst.toString())) {
>        throw new IOException("Cannot rename parent(source): " + parentSrc
>            + ", parent(destination):  " + parentDst);
>      }
> -    client.changeWorkingDirectory(parentSrc);
> +    client.changeWorkingDirectory(parentSrc.getPath().toString());
>      boolean renamed = client.rename(from, to);
>      return renamed;
>    }
> {noformat}

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