birtViewer on linux with flat file data source fails

Hello everyone.

I deployed birtViewer on an OAS oracle web server.
Now I have a report (rptdesign) which I want to read data from a flat file datasource. It was easy in Tomcat/Windows, but on Linux it can't find the flat file. The error is this:
org.eclipse.datatools.connectivity.oda.OdaException: Invalid table name:/u01/app/data/temp/my_file.txt
at org.eclipse.datatools.connectivity.oda.flatfile.util.FlatFileDataReader.findDataFileAbsolutePath(FlatFileDataReader.java:467)
at org.eclipse.datatools.connectivity.oda.flatfile.util.FlatFileDataReader.getColumnCount(FlatFileDataReader.java:301)

What do you recommend?.

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rsarmiento

In case you need to know this:
- I am using BirtViewer pulled from birt-runtime-2_2_2.zip
- O.S. is Linux Red hat 4
- Web server is Oracle OAS 10.1.2
- test.rptdesign works just fine on this server

Virgil Dodson

Hi rsarmiento,

According to this error, it looks like it is having trouble finding my_file.txt from the /u01/app/data/temp directory. Is this the correct location of that file? You may also want to check the permissions on that file and folder.

rsarmiento

Hi vdodson.

I checked that there is a my_file.txt in that path.
Also, using ls -l, unix tells me that the file has read permission for everyone (rwxrw-r--), so I changed it to +777 (rwxrwxrwx), just to be sure.

I also placed copies of the file at:
/u01/app/oas/portal/j2ee
/u01/app/oas/portal/j2ee/my_oc4j_instance
/u01/app/oas/portal/j2ee/my_oc4j_instance/applications
/u01/app/oas/portal/j2ee/my_oc4j_instance/applications/birt
/u01/app/oas/portal/j2ee/my_oc4j_instance/applications/birt/birt

the birt/birt directory is where the report rptdesign file is.

sadly, it still produces the same result.

I am trying to create a new OC4J instance and try to log using finest, to see if that could help me find the error.

rsarmiento

Thank you for your help. I succeeded in creating the birt report.

My problem was simple: I was not using the "HOME" property of the report definition file. I was trying to use a path+file as the name of the file, when what I should have done is to send the path part to HOME (in the Data-Source), and the file part to the Data-set.

home is now:
<property name="HOME">/u01/app/oas/portal/j2ee</property>

and the queryText property is similar to this:
<property name="queryText">select "COLUMN_1", "COLUMN_2" from
archivo.txt :..........