move to a more standard python packaging structure

src/damaris/gui/ExperimentWriter.py

@@ -0,0 +1,66 @@
+import os
+import os.path
+import shutil
+from damaris.experiments import Experiment
+
+class ExperimentWriter:
+    """
+    writes experiments in propper way to spool directory
+    """
+    def __init__(self, spool, no=0, job_pattern="job.%09d", inform_last_job=None):
+        self.spool=spool
+        self.job_pattern=job_pattern
+        self.no=no
+        self.inform_last_job=inform_last_job
+        # test if spool exists
+        if not os.path.isdir(spool):
+            os.mkdir(spool)
+
+    def send_next(self, job, quit=False):
+        """
+        """
+        if quit and self.inform_last_job is not None:
+            self.inform_last_job.stop_no=self.no
+            self.inform_last_job=None
+        job.job_id=self.no
+        job_filename=os.path.join(self.spool,self.job_pattern%self.no)
+        f=open(job_filename+".tmp","w")
+        f.write(job.write_xml_string())
+        f.flush()
+        f.close() # explicit close under windows necessary (don't know why)
+        del f
+        # this implementation tries to satisfiy msvc filehandle caching
+        os.rename(job_filename+".tmp", job_filename)
+        #shutil.copyfile(job_filename+".tmp", job_filename)
+        #try:
+        #    os.unlink(job_filename+".tmp")
+        #except OSError:
+        #    print "could not delete temporary file %s.tmp"%job_filename
+
+        self.no+=1
+
+    def __del__(self):
+        if self.inform_last_job is not None:
+            self.inform_last_job.stop_no=self.no-1
+            self.inform_last_job=None
+
+class ExperimentWriterWithCleanup(ExperimentWriter):
+    """
+    writes experiments and cleans up in front of queue
+    """
+    def __init__(self, spool, no=0, job_pattern="job.%09d", inform_last_job=None):
+        ExperimentWriter.__init__(self, spool, no, job_pattern, inform_last_job=inform_last_job)
+        self.delete_no_files(self.no)
+
+    def send_next(self, job, quit=False):
+        self.delete_no_files(self.no+1)
+        ExperimentWriter.send_next(self,job,quit)
+
+    def delete_no_files(self,no):
+        """
+        delete everything with this job number
+        """
+        filename=os.path.join(self.spool,(self.job_pattern%no))
+        if os.path.isfile(filename): os.unlink(filename)
+        if os.path.isfile(filename+".tmp"): os.unlink(filename+".tmp")
+        if os.path.isfile(filename+".result"): os.unlink(filename+".result")