DeliveryCommandProcessor.java

package za.co.pta.gdg.hashcode.delivery;

import java.io.BufferedReader;
import java.io.FileReader;

public class DeliveryCommandProcessor {
	//rows
	int rows;
	int columns;
	//number of drones
	int drones = -1;
	//number of customers
	int customers = -1;
	//number of warehouses
	int warehouses = -1;
	//number of orders
	int orders = -1;
	//number of available products
	int products = -1;
	//array of products
	int[][] productWeightPerType = null;
	//number of product types
	int productTypes = -1;
	
	int maximumPayload = -1;
	int maxTurns = -1;
	
	int[][] map = null;
	
	static final int ROWS_INDEX=0;
	static final int COLS_INDEX=1;
	static final int DRONES_INDEX=2;
	static final int TURNS_INDEX = 3;
	static final int PAYLOAD_INDEX=4;
	static final int INIT_LINE = 0;
	static final int PRODUCTS_TYPES_COUNT_LINE = 1; //second line in the file
	static final int PRODUCT_TYPES_WEIGHTS_LINE = 2; //3RD
	static final int WAREHOUSES_COUNT_LINE =3; //4TH
	static final int FIRST_WAREHOUSE_LINE = 4; //5TH location of first
	static final int WAREHOUSE_INVENTORY_LINE = 5; //6TH products-count of each type
	static final int DISTANCE_IN_LINES_BETWEEN_HW = 2;
		
	public DeliveryCommandProcessor(){
	}
	
		
	public void fromFile(String filePath){
		
		try{
			//do something
			FileReader fr = new FileReader(filePath);
			BufferedReader br = new BufferedReader(fr); 
			    String line;
			    int lineCounter = 0;
			    while ((line = br.readLine()) != null) {
			       
			       if(lineCounter == 0){
			    	   //first line - init
			    	   System.out.println(line);
			    	   String[] values = line.split(" ");
			    	   rows = Integer.valueOf(values[ROWS_INDEX]);
			    	   columns = Integer.valueOf(values[COLS_INDEX]);
			    	   drones = Integer.valueOf(values[DRONES_INDEX]);
			    	   maxTurns = Integer.valueOf(values[TURNS_INDEX]);
			    	   maximumPayload = Integer.valueOf(values[PAYLOAD_INDEX]);
			    	   
			    	   System.out.println("Drones = "+drones);
			       }
			       //are we looking at the products types line?
			       else if (lineCounter == PRODUCTS_TYPES_COUNT_LINE){
			    	   productTypes = Integer.valueOf(line.trim());
			    	   System.out.println("Number of Product Types = "+productTypes);
			       }
			       else if(lineCounter == PRODUCT_TYPES_WEIGHTS_LINE){
			    	   String[] weights = line.trim().split(" ");
			    	   productWeightPerType = new int[productTypes][weights.length];
			    	   //loop through the product types and assign weights to each
			    	   for(int x=0; x< productTypes; x++){
			    		   for(int y=0; y < weights.length; y++){
			    			   productWeightPerType[x][y] = Integer.valueOf(weights[y]); 
			    		   }
			    	   }
			       }
			       else if (lineCounter == WAREHOUSES_COUNT_LINE){
			    	   warehouses = Integer.valueOf(line.trim());
			    	   System.out.println("Number of Ware Houses = "+warehouses);			    	   
			       }
			       else if(lineCounter < (FIRST_WAREHOUSE_LINE *warehouses)){
			    	   //we have seen all ware houses
			       }
			    	   
			       lineCounter +=1;
			    }
		
		}
		catch(Exception e){
			e.printStackTrace();
		}
	}
	
	private void processInputFile(){
		
	}

	/**
	 * 	Move: Moves the specified number of items of the specified product type from a warehouse to the
		drone’s inventory. If the drone isn’t at the warehouse it will fly there using the shortest path before
		loading the product items. The requested number of items of the specified product type must be
		available in the warehouse. The total weight of the items in the drone’s inventory after the load
		cannot be bigger than the drone’s maximum load.
	 */
	
	/**
	 * 	Delivers the specified number of items of the specified product type to a customer. If the
		drone isn’t at the destination it will fly there using the shortest path before delivering the product
		items. The drone must have the requested number of items of the specified product type in its
		inventory.
	 */
	
	/**
	 * 	Unload: Moves the specified number of items of the specified product type from drone’s inventory to
		a warehouse. If the drone isn’t at the warehouse it will fly there using the shortest path before
		unloading the product items. The drone must have the requested number of items of the specified
		product type in its inventory.
	 */
	
	/*
	 * Wait : Waits the specified number of turns in the drone's current location.
	 */
	
	
}