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From "Samuel Guo (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HAMA-86) Implements generic load/save operations in hama
Date Wed, 22 Oct 2008 14:21:44 GMT

     [ https://issues.apache.org/jira/browse/HAMA-86?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Samuel Guo updated HAMA-86:
---------------------------

    Description: 
Let's discuss the generic load/save operation from/to other sources(such as, FileSystem).

matrices in FileSystem may have different format, parsing of the file as a matrix depends
on the format. 
we may need some methods like:

 /**
   * Save a matrix as file using specified OutputFormat.
   *
   * @param path
   *                  the file path.
   * @param format
   *                  the format of the matrix.
   * @return true if saved
   * @throws IOException
   */
  public boolean saveAsFile(Path filepath, OutputFormat format) throws IOException; 

 /**
   * Load a matrix from file
   *
   * @param path
   *                  the file path.
   * @param format
   *                  the format of the matrix.
   * @return true if saved
   * @throws IOException
   */
  public static Matrix loadFromFile(Path filepath, OutputFormat format) throws IOException;

  

  was:
we need a generic "pathname" class to identify the input & output.
 "pathname" can contain two parts: one is scheme, such as HBASE or HDFS; one will be the actual
name, such as table name in HBase, filename in HDFS.


I've changed the description.

> Implements generic load/save operations in hama
> -----------------------------------------------
>
>                 Key: HAMA-86
>                 URL: https://issues.apache.org/jira/browse/HAMA-86
>             Project: Hama
>          Issue Type: Improvement
>          Components: implementation
>    Affects Versions: 0.1.0
>            Reporter: Samuel Guo
>             Fix For: 0.1.0
>
>
> Let's discuss the generic load/save operation from/to other sources(such as, FileSystem).
> matrices in FileSystem may have different format, parsing of the file as a matrix depends
on the format. 
> we may need some methods like:
>  /**
>    * Save a matrix as file using specified OutputFormat.
>    *
>    * @param path
>    *                  the file path.
>    * @param format
>    *                  the format of the matrix.
>    * @return true if saved
>    * @throws IOException
>    */
>   public boolean saveAsFile(Path filepath, OutputFormat format) throws IOException; 
>  /**
>    * Load a matrix from file
>    *
>    * @param path
>    *                  the file path.
>    * @param format
>    *                  the format of the matrix.
>    * @return true if saved
>    * @throws IOException
>    */
>   public static Matrix loadFromFile(Path filepath, OutputFormat format) throws IOException;

>   

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