I have a java-for-dummies question:
> java -jar hps-distribution-bin.jar -i lcioFile.slcio steeringFile.xml
In what code in hps-java does this command start execution?
Or what is the main class here (is that the correct jargon?)?
(I'm only familiar with "java -cp hps.jar org.hps.evio.EvioToLcio".)
-Nathan
On Jul 24, 2015, at 8:27 PM, Sho Uemura <[log in to unmask]> wrote:
> Instead of writing a main() class and doing your analysis inside it, you would probably find it easier to write a Driver. Then the existing hps-java code will take care of reading events from the file and passing EventHeaders to your Driver.
>
> Roughly:
>
> 1. Follow the instructions to install and build hps-java (maybe you've done this already): https://confluence.slac.stanford.edu/display/hpsg/Installing+HPS+Java
>
> 2. Make a class that extends Driver, much like what you already seem to have in trunk/users/src/main/java/org/hps/users/spaul/HitrateHistograms.java. You can put your analysis code in the method process(EventHeader event).
>
> 3. Build hps-java to compile your Driver into an hps-distribution .jar file.
>
> 4. Write a steering file that calls your Driver, much like what you have in trunk/steering-files/src/main/resources/org/hps/steering/users/spaul/HitrateHistograms.lcsim.
>
> 5. Run the steering file on data:
>
> java -jar hps-distribution-bin.jar -i lcioFile.slcio steeringFile.xml
>
>
> If there's a reason a Driver is not appropriate for what you're doing, maybe we can figure something out that works. What you're doing now seems really strange without some more explanation.
>
> On Fri, 24 Jul 2015, Sebouh Paul wrote:
>
>> this seems like a stupid question but how do I get an "EventHeader" from a
>> file?
>>
>> I get this error:
>>
>> ifarm1101> java -cp "lib/*:bin" hps.protonradius.GetCharge
>> /work/hallb/hps/data/engrun2015/pass1/recon/hps_005779.81_recon_R3321.slcio
>> 5779
>>
>> blah
>>
>> Exception in thread "main"
>> org.lcsim.conditions.ConditionsManager$ConditionsSetNotFoundException: No
>> converter registered for type: org.lcsim.geometry.Detector
>>
>> at
>> org.lcsim.conditions.ConditionsManagerImplementation.getCachedConditions(ConditionsManagerImplementation.java:92)
>>
>> at org.lcsim.event.base.BaseLCSimEvent.getDetector(BaseLCSimEvent.java:76)
>>
>> at
>> org.lcsim.lcio.SIOTrackBlockHandler.addCollectionElements(SIOTrackBlockHandler.java:23)
>>
>> at
>> org.lcsim.lcio.AbstractBlockHandler.readCollection(AbstractBlockHandler.java:39)
>>
>> at
>> org.lcsim.lcio.AbstractBlockHandler.readBlock(AbstractBlockHandler.java:32)
>>
>> at org.lcsim.lcio.LCIOReader.read(LCIOReader.java:77)
>>
>> at hps.protonradius.GetCharge.main(GetCharge.java:22)
>>
>>
>> With this program:
>>
>> public class GetCharge {
>>
>> public static void main(String arg[]) throws IOException,
>> NumberFormatException, ConditionsNotFoundException{
>>
>> LCIOReader reader = new LCIOReader(new File(arg[0]));
>>
>> //ConditionsManagerImplementation.defaultInstance().setRun(Integer.parseInt(arg[1]));
>>
>> //ConditionsManagerImplementation.defaultInstance().
>>
>> System.out.println("blah");
>>
>> EventHeader h = reader.read();
>>
>> while(h != null){
>>
>> process(h);
>>
>> }
>>
>> System.out.println("done");
>>
>> }
>>
>> ....
>>
>> }
>>
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