Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
String documentName = null;
		if ( ( filePath == null ) || ( filePath.length( ) == 0 ) )
			return ""; 
		String sessionId = request.getSession( ).getId( );
		String fileSeparator = "\\"; 
		if ( filePath.lastIndexOf( fileSeparator ) == -1 )
			fileSeparator = "/"; 
		
		if ( filePath.lastIndexOf( fileSeparator ) != -1 )
		{
			documentName = filePath.substring( filePath
					.lastIndexOf( fileSeparator ) + 1 );
		}
		else
		{
			documentName = filePath;
		}
		String hashCode = Integer.toHexString( filePath.hashCode( ) );
		return documentFolder + File.separator + sessionId + File.separator
				+ hashCode + File.separator + documentName;
	}
	/**
	 * Clears the report document/image files which had been created last time
	 * the server starts up.
	 */
	protected static void clearTempFiles( )
	{
		
		File file = new File( documentFolder );
		deleteDir( file );