Re: Help with Searching indexes from a web app (Lucene 1.3 rc2)

[Erik Hatcher]

Also, reindex with the new API as well.  There are likely  
incompatibilities in the index format.

On Monday, December 1, 2003, at 11:21  AM, Iain Young wrote:

Note, that I've just tried the example webapp supplied with Lucene,  
and I
appear to be having exactly the same problem with that. The 1.2 version
works ok, but the 1.3 version is displaying a path not found error.

Are there any known incompatibilities with certain versions of Tomcat  
(I'm
currently using version 4.0.3)

Thanks,
Iain
-----Original Message-----
From: Iain Young [mailto:[EMAIL PROTECTED]
Sent: 01 December 2003 15:40
To: '[EMAIL PROTECTED]'
Subject: Help with Searching indexes from a web app (Lucene 1.3 rc2)

Hi folks.

I'm new to Lucene so this may be an obvious questions, but I am having
problems with Lucene 1.3-rc2. I've got a bit of code which looks  
something
like this....

public static void getSearchResults(String searchString, String  
indexDir)
{
    try
    {
        Searcher searcher = new IndexSearcher(indexDir);
        .....
        etc...
        .....
    }
    catch (Exception ex)
    {
    }
}

I'm calling it to from a web application (servlet) running in tomcat  
in
conjunction with struts and velocity. If I use the Lucene 1.2 binary
release, it all works fine and I get the search results ok. However,  
when
I replace the 1.2 jar file with the 1.3-rc2 jat file,  (leaving all  
of my
code exactly the same) it stops working, and I get a path not found
exception being thrown.

I've narrowed it down to the IndexReader.open(final Directory  
directory)
method. Even if I pass a valid Directory object into this (created by
FSDirectory), it just seems to throw the exception, (even though I  
know
the directory object is not null etc). The bizarre thing is that this
problem only seems to occur when I run it from the web application.  
If I
invoke the same code from the command line, it works ok, (even though  
I'm
using the same string for the index dir).

Anyone got any ideas? (I want to use 1.3 because I want to exploit  
some of
the newer features). Does running from within a web application do
something strange with the paths, even though the strings I'm using  
are
fully qualified?

Thanks for your help,

Iain Young
http://www.microfocus.com
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