add preliminary PBMotionAnalyzer.py

python/utilities.py

@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+#*-----------------------------------------------------------------------*
+#|                                                                       |
+#|  Copyright (c) 2016 by Paul Scherrer Institute (http://www.psi.ch)    |
+#|                                                                       |
+#|              Author Thierry Zamofing (thierry.zamofing@psi.ch)        |
+#*-----------------------------------------------------------------------*
+'''
+utilities classes
+'''
+import logging, h5py, re, zlib, zmq, json
+import numpy as np
+from libDetXR import *
+import time
+
+
+class dotdict(dict):
+  """dot.notation access to dictionary attributes"""
+  def __init__(self,arg=None,**kwargs):
+    if arg!=None:
+      self.__fill__(arg)
+    self.__fill__(kwargs)
+
+  def __fill__(self,kw):
+      for k,v in kw.iteritems():
+        if type(v)==dict:
+          self[k]=dotdict(v)
+        else:
+          self[k]=v
+          if type(v)==list:
+            for i,w in enumerate(v):
+              if type(w)==dict:
+                v[i]=dotdict(w)
+            pass
+
+  def __dir__(self):
+    l=dir(object)
+    #l.extend(self.keys())
+    l.extend(map(str,self.keys()))
+    return l
+
+  def __getattr__(self, attr):
+      #return self.get(attr)
+      try:
+        return self[attr]
+      except KeyError as e:
+        raise AttributeError("%r instance has no attribute %r" % (self.__class__, attr))
+
+  def __repr__(self):
+    return '<' + dict.__repr__(self)[1:-1] + '>'
+
+  def PrettyPrint(self,indent=0):
+    for k,v in self.iteritems():
+      if type(v)==dotdict:
+        print ' '*indent,str(k)+':'
+        v.PrettyPrint(indent+2)
+      else:
+        print ' '*indent+str(k)+'\t'+str(v)
+
+  __setattr__= dict.__setitem__
+  __delattr__= dict.__delitem__
+  #__getattr__= dict.__getattr__
+
+
+def ConvUtf8(s):
+  'convert unicoded json object to ASCII encoded'
+  #http://stackoverflow.com/questions/956867/how-to-get-string-objects-instead-of-unicode-ones-from-json-in-python
+  if isinstance(s, dict):
+    return {ConvUtf8(key): ConvUtf8(value) for key, value in s.iteritems()}
+  elif isinstance(s, list):
+    return [ConvUtf8(element) for element in s]
+  elif isinstance(s, unicode):
+    return s.encode('utf-8')
+  else:
+    return s
+
+class GpasciiCommunicator():
+  '''Communicates with the Delta Tau gpascii programm
+  '''
+  gpascii_ack="\x06\r\n"
+  gpascii_inp='Input\r\n'
+
+  def connect(self, host, username='root', password='deltatau',prompt='ppmac# '):
+    p=telnetlib.Telnet(host)
+    print p.read_until('login: ')
+    p.write(username+'\n')
+    print p.read_until('Password: ')
+    p.write(password+'\n')
+    print p.read_until(prompt)  # command prompt
+    p.write('gpascii -2\n')  # execute gpascii command
+    print p.read_until(self.gpascii_inp)
+    return p
+