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https://issues.apache.org/jira/browse/NUTCH-1078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113328#comment-13113328
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Lewis John McGibbney commented on NUTCH-1078:
---------------------------------------------
This is a pretty tricky case of the following
{code}
only messages of type String are supported
If one of your log statements contains a non-string object as its sole
parameter, you will have to manually add a toString() method call on the object.
For example,
logger.debug(new Object());
has to be manually re-written as
logger.debug(new Object().toString());
{code}
There are quite a few examples of this in fetcher.java I'll start working my
way through them and get a patch submitted later today Markus.
> Upgrade all instances of commons logging to slf4j (with log4j backend)
> ----------------------------------------------------------------------
>
> Key: NUTCH-1078
> URL: https://issues.apache.org/jira/browse/NUTCH-1078
> Project: Nutch
> Issue Type: Improvement
> Affects Versions: 1.4
> Reporter: Lewis John McGibbney
> Assignee: Lewis John McGibbney
> Priority: Minor
> Fix For: 1.4
>
> Attachments: NUTCH-1078-branch-1.4-20110816.patch,
> NUTCH-1078-branch-1.4-20110824-v2.patch,
> NUTCH-1078-branch-1.4-20110911-v3.patch,
> NUTCH-1078-branch-1.4-20110916-v4.patch
>
>
> Whilst working on another issue, I noticed that some classes still import and
> use commons logging for example HttpBase.java
> {code}
> import java.util.*;
> // Commons Logging imports
> import org.apache.commons.logging.Log;
> import org.apache.commons.logging.LogFactory;
> // Nutch imports
> import org.apache.nutch.crawl.CrawlDatum;
> {code}
> At this stage I am unsure how many (if any others) still import and reply
> upon commons logging, however they should be upgraded to slf4j for branch-1.4.
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