C++ TLeaf::GetLeafCounter方法代码示例

void getlist(ostream& out, TBranch* branch, int depth=0)
{
  TObjArray* array = branch->GetListOfBranches();
  if ( ! array ) return;
  if ( depth > 10 ) return;

  string name;
  int nitems = array->GetEntries();

  for (int i = 0; i < nitems; i++)
	{
	  TBranch* b = (TBranch*)((*array)[i]);
      if ( ! b ) continue;

      string branchname(b->GetName());
      out << SPACE.substr(0,4*depth) << branchname << endl;
 
      TObjArray* a = b->GetListOfLeaves();
      if ( a )
        {
          int n = a->GetEntries();
          {
              for (int j = 0; j < n; j++)
                {
                  TLeaf* leaf = (TLeaf*)((*a)[j]);
                  int count = 0;
                  int ndata = 0;
                  TLeaf* leafc = leaf->GetLeafCounter(count);
                  if ( ! leafc)
                    ndata = leaf->GetLen();
                  else
                    ndata = leafc->GetMaximum();

                  string leafname(leaf->GetName());
                  out << SPACE.substr(0,4*(depth+1)) 
                      << ndata << " " << leafname << endl;
                }
          }
//           else if ( n == 1 )
//             {
//               TBranch* bc = (TBranch*)((*a)[j]);
//               string leafname(bc->GetName());
//               if ( leafname != branchname )
//               out << SPACE.substr(0,4*(depth+1)) << leafname << endl;
//             }
        }
      getlist(out, b, depth+1);
    }
}

bool TreeReader::Initialize(vector <string> br, string opt)
{
	if(!init)
	{
	    if( !fChain )
		{
		        cout << endl;
			cout << "No tree to initialize" << endl;
			cout << endl;
			return false;
		}

		TObjArray *fileElements = fChain->GetListOfFiles();
		if( !fileElements || ( fileElements->GetEntries() == 0 ))
		{
		        cout << endl;
			cout << "No file(s) to initialize" << endl;
			cout << endl;
			return false;
		}
	}

	varList.clear();

	TObjArray* branches = fChain->GetListOfBranches();
	int nBranches = branches->GetEntries();

	for (int i = 0; i < nBranches; ++i)
	{
		TBranch* branch = (TBranch*)branches->At(i);
		string brname = branch->GetName();
		TLeaf* leaf = branch->GetLeaf(branch->GetName());

		if ( leaf == 0 )  // leaf name is different from branch name
		{
			TObjArray* leafs = branch->GetListOfLeaves();
			leaf = (TLeaf*)leafs->At(0);
		}

		string curtype = leaf->GetTypeName();
        int id = TypeDB::getType(curtype.c_str());
		int arreysize = 1;
		string title = leaf->GetTitle();
        //cout << curtype << "   " << title << endl;

		// Find out whether we have array by inspecting leaf title
		if ( title.find("[")!=std::string::npos )
		{
			TLeaf * nelem = leaf->GetLeafCounter(arreysize);
			if(arreysize == 1 && nelem != NULL) arreysize = nelem->GetMaximum() + 1; //search for maximum value of the lenght
		}


		if(id >= 0)
		{
			bool addVar = true;
			if(br.size()>0)
			{
				addVar = false;
				for(unsigned b = 0; b < br.size(); b++)
				{
					if(opt == "names" || opt == "except")
					{
						if(br[b] == brname) { addVar = true; break;}
					}
					else if(opt.find("contains")!=string::npos)
					{
						if((string(brname)).find(br[b])!=string::npos) { addVar = true; break;}
					}
					else if(opt.find("except")==string::npos) cout << "Option " << opt << " not found" << endl;
				}

				if(opt.find("except")!=string::npos) addVar = !addVar;
			}

			if(addVar)
			{
				variable * tmpVar = new variable(id,arreysize);

				tmpVar->name = leaf->GetName();
				tmpVar->bname = branch->GetName();
				tmpVar->title = title;

				varList.push_back(tmpVar);
				fChain->SetBranchAddress(tmpVar->bname,tmpVar->value.address);
			}
		}
		else
		{
			cout << curtype << ": type not found" << endl;
			exit(1);
			return false;
		}
	}

	init = true;
	continueSorting = true;
	if(pmode=="v") cout << endl << "Set up " << varList.size() << " / " << nBranches << " branches" << endl;

	return true;
//.........这里部分代码省略.........