BioAssaySet tries to calculate number of spots and reporter on non-existing table

[Nicklas Nordborg]

Stop with the following stack trace:

net.sf.basedb.core.BaseException: Table 'base2dynamic.D2Spot' doesn't 
exist
  at net.sf.basedb.core.AbstractSqlQuery.iterate(AbstractSqlQuery.java:193)
  at 
net.sf.basedb.core.BioAssaySet.countSpotsAndReporters(BioAssaySet.java:1096)
  at net.sf.basedb.core.BioAssaySet.onBeforeCommit(BioAssaySet.java:315)
  at net.sf.basedb.core.DbControl.commit(DbControl.java:365)
  at 
se.lu.thep.affymetrix.AbstractExternalBinaryPlugin.run(AbstractExternalBinaryPlugin.java:264)
  at 
net.sf.basedb.core.PluginExecutionRequest.invoke(PluginExecutionRequest.java:88)
  at 
net.sf.basedb.core.InternalJobQueue$JobRunner.run(InternalJobQueue.java:420)
  at java.lang.Thread.run(Unknown Source)

The BioAssaySet.countSpotsAndReporters should check if the table exists before doing the count. I think the countBioAssaySpots will need to do the same. The result coult probably be cached.

It would be a good idea to first create a test program to reproduce the error.

[Nicklas Nordborg]

(In [3647]) Fixes #718: BioAssaySet tries to calculate number of spots and reporter on non-existing table