def __update_bin_type_distribution_map()

in Bin Packing/src/bin_packing_environment.py [0:0]

• 34 lines of code
• 15 McCabe index (conditional complexity)

    def __update_bin_type_distribution_map(self, target_bin_util):
        if target_bin_util < 0 or target_bin_util + self.item_size > self.bag_capacity:
            print("Error: Invalid Bin Utilization/Item Size")
            return
        elif target_bin_util > 0 and target_bin_util not in self.bin_type_distribution_map:
            print("Error: bin_type_distribution_map does not contain " + str(target_bin_util) + " as key!")
            return
        elif target_bin_util > 0 and target_bin_util in self.bin_type_distribution_map and len(
                self.bin_type_distribution_map[target_bin_util]) == 0:
            print("Error: bin_type_distribution_map has no element at level " + str(target_bin_util) + " !")
            return
        elif target_bin_util == 0:  # opening a new bin
            if self.item_size not in self.bin_type_distribution_map:
                self.bin_type_distribution_map[self.item_size] = {str(self.item_size): 1}
            elif str(self.item_size) not in self.bin_type_distribution_map[self.item_size]:
                self.bin_type_distribution_map[self.item_size][str(self.item_size)] = 1
            else:
                self.bin_type_distribution_map[self.item_size][str(self.item_size)] += 1
        else:
            key = np.random.choice(list(self.bin_type_distribution_map[target_bin_util].keys()))
            if self.bin_type_distribution_map[target_bin_util][key] <= 0:
                print("Error: Invalid bin count!")
                return
            elif self.bin_type_distribution_map[target_bin_util][key] == 1:
                del self.bin_type_distribution_map[target_bin_util][key]
            else:
                self.bin_type_distribution_map[target_bin_util][key] -= 1

            new_key = self.__update_key_for_bin_type_distribution_map(key, self.item_size)
            if (target_bin_util + self.item_size) not in self.bin_type_distribution_map:
                self.bin_type_distribution_map[target_bin_util + self.item_size] = {new_key: 1}
            elif new_key not in self.bin_type_distribution_map[target_bin_util + self.item_size]:
                self.bin_type_distribution_map[target_bin_util + self.item_size][new_key] = 1
            else:
                self.bin_type_distribution_map[target_bin_util + self.item_size][new_key] += 1