EdmDataAccessor.py

Go to the documentation of this file.

import logging
import os.path

from PyQt4.QtGui import QColor

from Vispa.Share.BasicDataAccessor import BasicDataAccessor
from Vispa.Share.RelativeDataAccessor import RelativeDataAccessor
from Vispa.Share.ParticleDataAccessor import ParticleDataAccessor
from Vispa.Plugins.EventBrowser.EventFileAccessor import EventFileAccessor
from Vispa.Main.Exceptions import exception_traceback
from Vispa.Plugins.EdmBrowser.ParticleDataList import defaultParticleDataList

def eq(self,other):
    return id(self)==id(other)
def ne(self,other):
    return id(self)!=id(other)
# PhysicsTools.PythonAnalysis.cmstools
def all(container):
  # loop over ROOT::TTree and similar
  if hasattr(container,'GetEntries'):
    try:
      entries = container.GetEntries()
      for entry in xrange(entries):
        yield entry
    except:
        raise cmserror("Looping of %s failed" %container) 
  # loop over std::vectors and similar
  elif hasattr(container, 'size'):
    # convert std::map to std::vector<std::pair>
    if hasattr(container, 'ids'):
      container = container.ids()
    try:
      entries = container.size()
      for entry in xrange(entries):
        yield container[entry]
    except:
      pass
  # loop over c buffer
  #elif hasattr(container,'begin') and hasattr(container,'end'):
  #    begin=container.begin()
  #    end=container.end()
  #    while (begin!=end):
  #        yield begin.__deref__()
  #        begin.__preinc__()

class BranchDummy(object):
    def __init__(self,branchtuple):
        self.branchtuple=branchtuple

class EdmDataAccessor(BasicDataAccessor, RelativeDataAccessor, ParticleDataAccessor, EventFileAccessor):
 
    def __init__(self):
        logging.debug(__name__ + ": __init__")

        self._dataObjects = []
        self._edmLabel={}
        self._edmParent={}
        self._edmChildren={}
        self._edmMotherRelations={}
        self._edmDaughterRelations={}
        self._edmChildrenObjects={}
        
        self._eventIndex = 0
        self._numEvents = 0

        self._filename=""
        self._branches=[]
        self._filteredBranches=[]
        self._events=None
        self._readOnDemand=True
        self._underscore=False
        self._filterBranches=True
        self.maxLevels=2
        self.maxDaughters=1000
        
    def isRead(self,object,levels=1):
        if not id(object) in self._edmChildrenObjects.keys():
            return False
        if levels>1 and id(object) in self._edmChildren.keys():
            for child in self._edmChildren[id(object)]:
                if not self.isRead(child, levels-1):
                    return False
        return True

    def children(self,object):
        """ Get children of an object """
        if id(object) in self._edmChildren.keys() and self.isRead(object):
            return self._edmChildren[id(object)]
        else:
            return ()

    def isContainer(self,object):
        """ Get children of an object """
        if id(object) in self._edmChildren.keys() and self.isRead(object):
            return len(self._edmChildren[id(object)])>0
        else:
            return True

    def motherRelations(self,object):
        """ Get motherRelations of an object """
        if id(object) in self._edmMotherRelations.keys():
            return self._edmMotherRelations[id(object)]
        else:
            return ()

    def daughterRelations(self,object):
        """ Get daughterRelations of an object """
        if id(object) in self._edmDaughterRelations.keys():
            return self._edmDaughterRelations[id(object)]
        else:
            return ()

    def label(self,object):
        return self.getShortLabel(object)

    def getShortLabel(self,object):
        if id(object) in self._edmLabel.keys():
            splitlabel=self._edmLabel[id(object)].strip(".").split(".")
            return splitlabel[len(splitlabel)-1]
        else:
            return ""

    def getShortLabelWithType(self,object):
        return self.getShortLabel(object)+" <"+self.getShortType(object)+">"

    def getObjectLabel(self,object):
        splitlabel=self._edmLabel[id(object)].strip(".").split(".")
        return ".".join(splitlabel[1:-1])

    def getType(self,object):
        typ=str(object.__class__)
        if "\'" in typ:
            typ=typ.split("\'")[1]
        if "." in typ:
            typ=typ.split(".")[len(typ.split("."))-1]
        return typ.strip(" ")

    def getShortType(self,object):
        typ=self.getType(object).split("<")[0].strip(" ")
        return typ
    
    def getBranch(self,object):
        entry=object
        while id(entry) in self._edmParent.keys() and self._edmParent[id(entry)]!=None:
            entry=self._edmParent[id(entry)]
        return entry

    def getDepth(self,object):
        entry=object
        i=0
        while id(entry) in self._edmParent.keys() and self._edmParent[id(entry)]!=None:
            entry=self._edmParent[id(entry)]
            i+=1
        return i

    def getObjectProperties(self,object):
        """ get all method properties of an object """
        objects=[]
        for attr in dir(object):
            prop=getattr(object,attr)
            if not attr.startswith("__") and (self._underscore or attr.strip("_")==attr):
                objects+=[(attr,prop)]
        return objects
    
    def getObjectRef(self,object):
        """ get object and resolve references """
        typshort=self.getShortType(object)
        ref_types=["edm::Ref","edm::RefProd","edm::RefToBase","edm::RefToBaseProd","edm::Ptr"]
        value=object
        ref=False
        if typshort in ref_types:
            try:
                if hasattr(object, "isNull") and object.isNull():
                    value="ERROR: "+self.getType(object)+" object is null"
                elif hasattr(object, "isAvailable") and not object.isAvailable():
                    value="ERROR: "+self.getType(object)+" object is not available"
                else:    
                    value=object.get()
                    if type(value)==type(None):
                        value="ERROR: Could not get "+self.getType(object)
                    else:
                        ref=True
            except Exception, message:
                value="ERROR: "+str(message)
        return value,ref

    def getObjectContent(self,object):
        """ get string value of a method """
        if not callable(object):
            return object
        else:
            typ=""
            if not object.__doc__ or str(object.__doc__)=="":
                return "ERROR: Empty __doc__ string"
            docs=str(object.__doc__).split("\n")
            for doc in docs:
                parameters=[]
                for p in doc[doc.find("(")+1:doc.find(")")].split(","):
                    if p!="" and not "=" in p:
                        parameters+=[p]
                if len(parameters)!=0:
                    continue
                typestring=doc[:doc.find("(")]
                split_typestring=typestring.split(" ")
                templates=0
                end_typestring=0
                for i in reversed(range(len(split_typestring))):
                    templates+=split_typestring[i].count("<")
                    templates-=split_typestring[i].count(">")
                    if templates==0:
                        end_typestring=i
                        break
                typ=" ".join(split_typestring[:end_typestring])
            hidden_types=["iterator","Iterator"]
            root_types=["ROOT::"]
            if typ=="" or "void" in typ or True in [t in typ for t in hidden_types]:
                return None
            from ROOT import TClass
            if True in [t in typ for t in root_types] and TClass.GetClass(typ)==None:
                return "ERROR: Cannot display object of type "+typ
            try:
                object=object()
                value=object
            except Exception, message:
                value="ERROR: "+str(message)
            if "Buffer" in str(type(value)):
                return "ERROR: Cannot display object of type "+typ
            else:
                return value

    def isVectorObject(self,object):
        typ=self.getShortType(object)
        return typ=="list" or typ[-6:].lower()=="vector" or typ[-3:].lower()=="map" or typ[-10:].lower()=="collection" or hasattr(object,"size")

    def compareObjects(self,a,b):
        same=False
        if hasattr(a,"px") and hasattr(a,"py") and hasattr(a,"pz") and hasattr(a,"energy") and \
           hasattr(b,"px") and hasattr(b,"py") and hasattr(b,"pz") and hasattr(b,"energy"):
            same=a.px()==b.px() and a.py()==b.py() and a.pz()==b.pz() and a.energy()==b.energy()
        return same

    def getDaughterObjects(self,object):
        """ get list of daughter objects from properties """
        objects=[]
        # subobjects
        objectdict={}
        hidden_attr=["front","back","IsA","clone","masterClone","masterClonePtr","mother","motherRef","motherPtr","daughter","daughterRef","daughterPtr","is_back_safe"]
        broken_attr=[]#["jtaRef"]
        for attr1,property1 in self.getObjectProperties(object):
            if attr1 in hidden_attr:
                pass
            elif attr1 in broken_attr:
                objectdict[attr1]=("ERROR: Cannot read property",False)
            else:
                (value,ref)=self.getObjectRef(self.getObjectContent(property1))
                if not isinstance(value,type(None)) and (not self.isVectorObject(object) or self._propertyType(value)!=None):
                    objectdict[attr1]=(value,ref)
        for name in sorted(objectdict.keys()):
            objects+=[(name,objectdict[name][0],objectdict[name][1],self._propertyType(objectdict[name][0]))]
        # entries in vector
        if self.isVectorObject(object):
            n=0
            for o in all(object):
                (value,ref)=self.getObjectRef(o)
                typ=self._propertyType(value)
                if typ!=None:
                    name="["+str(n)+"]"
                elif "GenParticle" in str(value):
                    name=defaultParticleDataList.getNameFromId(value.pdgId())
                else:
                    name=self.getType(value)+" ["+str(n)+"]"
                objects+=[(name,value,ref,typ)]
                n+=1
        # read candidate relations
        for name,mother,ref,propertyType in objects:
            if hasattr(mother,"numberOfDaughters") and hasattr(mother,"daughter"):
                try:
                    for n in range(mother.numberOfDaughters()):
                        daughter=mother.daughter(n)
                        found=False
                        for na,da,re,st in objects:
                            if self.compareObjects(daughter,da):
                                daughter=da
                                found=True
                        if not id(mother) in self._edmDaughterRelations.keys():
                            self._edmDaughterRelations[id(mother)]=[]
                        self._edmDaughterRelations[id(mother)]+=[daughter]
                        if not id(daughter) in self._edmMotherRelations.keys():
                            self._edmMotherRelations[id(daughter)]=[]
                        self._edmMotherRelations[id(daughter)]+=[mother]
                except Exception, message:
                    logging.error("Cannot read candidate relations: "+str(message))
        return objects

    def _propertyType(self,value):
        if type(value) in (bool,):
            return "Boolean"
        elif type(value) in (int, long):
            return "Integer"
        elif type(value) in (float,):
            return "Double"
        elif type(value) in (complex,str,unicode):
            return "String"
        else:
            return None

    def properties(self,object):
        """ Make list of all properties """
        logging.debug(__name__ + ": properties: "+self.label(object))
        properties=[]

        objectproperties={}
        objectproperties_sorted=[]
        if id(object) in self._edmChildrenObjects.keys():
            for name,value,ref,propertyType in self._edmChildrenObjects[id(object)]:
                if propertyType!=None:
                    objectproperties[name]=(value,propertyType)
                    objectproperties_sorted+=[name]

        properties+=[("Category","Object info","")]
        shortlabel=self.getShortLabel(object)
        properties+=[("String","label",shortlabel)]
        properties+=[("String","type",self.getType(object))]
        objectlabel=self.getObjectLabel(object)
        if objectlabel!="":
            properties+=[("String","object",objectlabel)]
        branchlabel=self.label(self.getBranch(object))
        if shortlabel.strip(".")!=branchlabel.strip("."):
            properties+=[("String","branch",branchlabel)]
        else:
            properties+=[("Category","Branch info","")]
            properties+=[("String","Type",branchlabel.split("_")[0])]
            properties+=[("String","Label",branchlabel.split("_")[1])]
            properties+=[("String","Product",branchlabel.split("_")[2])]
            properties+=[("String","Process",branchlabel.split("_")[3])]

        for property in ["pdgId","charge","status"]:
            if property in objectproperties.keys():
                properties+=[(objectproperties[property][1],property,objectproperties[property][0])]
                del objectproperties[property]

        if "px" in objectproperties.keys():
            properties+=[("Category","Vector","")]
            for property in ["energy","px","py","pz","mass","pt","eta","phi","p","theta","y","rapidity","et","mt","mtSqr","massSqr"]:
                if property in objectproperties.keys():
                    properties+=[(objectproperties[property][1],property,objectproperties[property][0])]
                    del objectproperties[property]

        if "x" in objectproperties.keys():
            properties+=[("Category","Vector","")]
            for property in ["x","y","z"]:
                if property in objectproperties.keys():
                    properties+=[(objectproperties[property][1],property,objectproperties[property][0])]
                    del objectproperties[property]

        if False in [str(value[0]).startswith("ERROR") for value in objectproperties.values()]:
            properties+=[("Category","Values","")]
            for property in objectproperties_sorted:
                if property in objectproperties.keys():
                    if not str(objectproperties[property][0]).startswith("ERROR"):
                        properties+=[(objectproperties[property][1],property,objectproperties[property][0])]
                        del objectproperties[property]
            
        if len(objectproperties.keys())>0:
            properties+=[("Category","Errors","")]
            for property in objectproperties_sorted:
                if property in objectproperties.keys():
                    properties+=[(objectproperties[property][1],property,objectproperties[property][0])]
                
        return tuple(properties)

    def readObjectsRecursive(self,mother,label,edmobject,levels=1):
        """ read edm objects recursive """
        logging.debug(__name__ + ": readObjectsRecursive (levels="+str(levels)+"): "+label)
        # save object information
        if not id(edmobject) in self._edmLabel.keys():
            if not isinstance(edmobject,(int,float,long,complex,str,unicode,bool)):
                # override comparison operator of object
                try:
                    type(edmobject).__eq__=eq
                    type(edmobject).__ne__=ne
                except:
                    pass
            self._edmLabel[id(edmobject)]=label
            self._edmParent[id(edmobject)]=mother
            self._edmChildren[id(edmobject)]=[]
            if not id(mother) in self._edmChildren.keys():
                self._edmChildren[id(mother)]=[]
            self._edmChildren[id(mother)]+=[edmobject]
        if levels==0:
            # do not read more daughters
            return [edmobject],True
        else:
            # read daughters
            return self.readDaughtersRecursive(edmobject,[edmobject],levels)

    def readDaughtersRecursive(self,edmobject,objects,levels=1):
        """ read daughter objects of an edmobject """
        logging.debug(__name__ + ": readDaughtersRecursive (levels="+str(levels)+"): "+str(edmobject))
        # read children information
        if not id(edmobject) in self._edmChildrenObjects.keys():
            self._edmChildrenObjects[id(edmobject)]=self.getDaughterObjects(edmobject)
        # analyze children information
        ok=True
        daughters=self._edmChildrenObjects[id(edmobject)]
        i=0
        for name,daughter,ref,propertyType in daughters:
            # create children objects
            if propertyType==None:
                if ref:
                    label="* "+name
                else:
                    label=name
                if id(edmobject) in self._edmLabel.keys() and self._edmLabel[id(edmobject)]!="":
                    label=self._edmLabel[id(edmobject)]+"."+label
                (res,ok)=self.readObjectsRecursive(edmobject,label,daughter,levels-1)
                objects+=res
            i+=1
            if i>self.maxDaughters:
                logging.warning("Did not read all daughter objects. Maximum is set to "+str(self.maxDaughters)+".")
                return objects,False
        return objects,ok

    def read(self,object,levels=1):
        """ reads contents of a branch """
        logging.debug(__name__ + ": read")
        if isinstance(object,BranchDummy):
            if hasattr(object,"product"):
                return object.product
            if not self._events:
                return object
            try:
                self._events.getByLabel(object.branchtuple[2],object.branchtuple[3],object.branchtuple[4],object.branchtuple[1])
                if object.branchtuple[1].isValid():
                    product=object.branchtuple[1].product()
                    if not isinstance(product,(int,float,long,complex,str,unicode,bool)):
                        # override comparison operator of object
                        try:
                            type(product).__eq__=eq
                            type(product).__ne__=ne
                        except:
                            pass
                    self._dataObjects.insert(self._dataObjects.index(object),product)
                    self._dataObjects.remove(object)
                    self._edmLabel[id(product)]=object.branchtuple[0]
                    object.product=product
                    object=product
                else:
                    self._edmChildrenObjects[id(object)]=[("ERROR","ERROR: Branch is not valid.",False,True)]
                    logging.info("Branch is not valid: "+object.branchtuple[0]+".")
                    object.invalid=True
                    return object
            except Exception, e:
                self._edmChildrenObjects[id(object)]=[("ERROR","ERROR: Unable to read branch : "+str(e),False,True)]
                object.unreadable=True
                logging.warning("Unable to read branch "+object.branchtuple[0]+" : "+exception_traceback())
                return object
        if self.isRead(object,levels):
            return object
        if levels>0:
            self.readDaughtersRecursive(object,[],levels)
        return object

    def goto(self, index):
        """ Goto event number index in file.
        """
        self._eventIndex=index-1
        self._edmLabel={}
        self._edmChildren={}
        self._edmMotherRelations={}
        self._edmDaughterRelations={}
        self._edmChildrenObjects={}
        if self._events:
            self._events.to(self._eventIndex)
        self._dataObjects=[]
        i=0
        for branchtuple in self._filteredBranches:
            branch=BranchDummy(branchtuple)
            self._dataObjects+=[branch]
            self._edmLabel[id(branch)]=branchtuple[0]
            if not self._readOnDemand:
                self.read(branch,self.maxLevels)
            i+=1
        if self._filterBranches and self._events:
            self.setFilterBranches(True)
        return True
    
    def eventNumber(self):
        return self._eventIndex+1

    def numberOfEvents(self):
        return self._numEvents

    def topLevelObjects(self):
        return self._dataObjects

    def open(self, filename=None):
        """ Open edm file and show first event """
        self._filename=filename
        self._branches=[]
        if os.path.splitext(filename)[1].lower()==".txt":
            file = open(filename)
            for line in file.readlines():
                if "\"" in line:
                    linecontent=[l.strip(" \n").rstrip(".") for l in line.split("\"")]
                    self._branches+=[(linecontent[0]+"_"+linecontent[1]+"_"+linecontent[3]+"_"+linecontent[5],None,linecontent[1],linecontent[3],linecontent[5])]
                else:
                    linecontent=line.strip("\n").split(" ")[0].split("_")
                    if len(linecontent)>3:
                        self._branches+=[(linecontent[0]+"_"+linecontent[1]+"_"+linecontent[2]+"_"+linecontent[3],None,linecontent[1],linecontent[2],linecontent[3])]
        elif os.path.splitext(filename)[1].lower()==".root":
            from DataFormats.FWLite import Events, Handle
            self._events = Events(self._filename)
            self._numEvents=self._events.size()
            branches=self._events.object().getBranchDescriptions()
            for branch in branches:
                try:
                    branchname=branch.friendlyClassName()+"_"+branch.moduleLabel()+"_"+branch.productInstanceName()+"_"+branch.processName()
                    handle=Handle(branch.fullClassName())
                    self._branches+=[(branchname,handle,branch.moduleLabel(),branch.productInstanceName(),branch.processName())]
                except Exception, e:
                    logging.warning("Cannot read branch "+branchname+":"+str(e))
        self._branches.sort(lambda x, y: cmp(x[0], y[0]))
        self._filteredBranches=self._branches[:]
        return self.goto(1)

    def particleId(self, object):
        charge=self.property(object,"pdgId")
        if charge==None:
            charge=0
        return charge
        
    def isQuark(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        return defaultParticleDataList.isQuarkId(particleId)

    def isLepton(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        return defaultParticleDataList.isLeptonId(particleId)

    def isGluon(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        return defaultParticleDataList.isGluonId(particleId)

    def isBoson(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        return defaultParticleDataList.isBosonId(particleId)

    def isPhoton(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        if not hasattr(defaultParticleDataList,"isPhotonId"):
            return False
        return defaultParticleDataList.isPhotonId(particleId)
    
    def isHiggs(self, object):
        particleId = self.particleId(object)
        if not particleId:
            return False
        if not hasattr(defaultParticleDataList,"isHiggsId"):
            return False
        return defaultParticleDataList.isHiggsId(particleId)
    
    def lineStyle(self, object):
        particleId = self.particleId(object)
        if hasattr(defaultParticleDataList,"isPhotonId") and defaultParticleDataList.isPhotonId(particleId):
            return self.LINE_STYLE_WAVE
        elif defaultParticleDataList.isGluonId(particleId):
            return self.LINE_STYLE_SPIRAL
        elif defaultParticleDataList.isBosonId(particleId):
            return self.LINE_STYLE_DASH
        return self.LINE_STYLE_SOLID
    
    def color(self, object):
        particleId = self.particleId(object)
        if defaultParticleDataList.isLeptonId(particleId):
            return QColor(244, 164, 96)
        elif defaultParticleDataList.isQuarkId(particleId):
            return QColor(0, 100, 0)
        elif hasattr(defaultParticleDataList,"isHiggsId") and defaultParticleDataList.isHiggsId(particleId):
            return QColor(247, 77, 251)
        elif defaultParticleDataList.isBosonId(particleId):
            return QColor(253, 74, 74)
        return QColor(176, 179, 177)
    
    def charge(self, object):
        charge=self.property(object,"charge")
        if charge==None:
            charge=0
        return charge
    
    def linkMother(self, object, mother):
        pass
        
    def linkDaughter(self, object, daughter):
        pass

    def underscoreProperties(self):
        return self._underscore
    
    def setUnderscoreProperties(self,check):
        self._underscore=check
    
    def filterBranches(self):
        return self._filterBranches
    
    def setFilterBranches(self,check):
        if not self._events:
            return True
        self._filterBranches=check
        if check:
            for branch in self._dataObjects[:]:
                result=self.read(branch,0)
                if isinstance(result,BranchDummy):
                    self._dataObjects.remove(result)
                if hasattr(result,"invalid"):
                    self._filteredBranches.remove(result.branchtuple)
            return True
        else:
            self._filteredBranches=self._branches[:]
            self.goto(self.eventNumber())
            return False

    def filteredBranches(self):
        return self._filteredBranches