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From "Benjamin Francisoud (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-69) NullPointerException in setJobtrackerLocation() in PigContext.java:68
Date Wed, 23 Jan 2008 15:08:34 GMT

     [ https://issues.apache.org/jira/browse/PIG-69?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benjamin Francisoud updated PIG-69:
-----------------------------------

    Attachment: PigContext-PIG-69-v01.patch

This patch fix the null pointer and allows at the same time to set more configuration parameters
using IoC approach.

The problem with setting conf param with methods like "setJobtrackerLocation()" and "setFilesystemLocation()"
is that you will end up adding lots of those methods filling the class with boiler plate code
for each parameter :(

The client code will look like:
{code:java}
PigContext pigContext = new PigContext(ExecType.MAPREDUCE);
JobConf conf = new JobConf(configuration);
pigContext.setConf(conf);

PigServer pigServer = new PigServer(pigContext);
{code}

This patch makes setJobtrackerLocation() and setFilesystemLocation() deprecated.

> NullPointerException in setJobtrackerLocation() in PigContext.java:68
> ---------------------------------------------------------------------
>
>                 Key: PIG-69
>                 URL: https://issues.apache.org/jira/browse/PIG-69
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.1.0
>            Reporter: Benjamin Francisoud
>         Attachments: PigContext-PIG-69-v01.patch
>
>
> {noformat}
> java.lang.NullPointerException
>     at org.apache.pig.impl.PigContext.setJobtrackerLocation(PigContext.java:425)
>     ... (the rest of the stacktrace is my own servlet code)
> {noformat}
> The code:
> {code:java}
> final PigContext pigContext = new PigContext(ExecType.MAPREDUCE);
> pigContext.setJobtrackerLocation(configuration.get("mapred.job.tracker"));
> pigContext.setFilesystemLocation(configuration.get("fs.default.name"));
>         
> final PigServer pigServer = new PigServer(pigContext);
> {code}
> Where configuration is a org.apache.hadoop.conf.Configuration object initialized with
spring framework.

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