Class ProductionLine

java.lang.Object

ProductionLine

public class ProductionLine
extends java.lang.Object

ProductionLine represents an assembly line. Disks are fed as a Queue into a robot arm. The robot arm will then create upside-down pyramids and then flip them onto the output line, so that the output queue is a series of pyramids built from the Disks input into the robot arm. The input and output are a Queue of Disks and a Queue of Towers respectively. The robot arm is a Tower. The class has one constructor, which initializes the fields as empty.The method then has four functionalities: addDisk (this adds a disk to the input), unloadRobot (flips the current Tower in robot arm, puts it on output, and clears the robot arm), process (processes through input line creating pyramids and adding them to the output), and removeTower (which removes a Tower from the output).

Author:

AnneMarie Caballero (annemariecabs)

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Queue<Disk>	input	A Queue of Disks that represent the input being fed into the production line
private java.util.Queue<Tower>	output	A Queue of Towers that represent the output of the production line.
private Tower	robotArm	A Tower representing the Disks that the robot arm is currently holding

Constructor Summary

Constructors

Constructor	Description
ProductionLine()	Constructs a ProductionLine object by creating default LinkedLists for the input and output lines and creating the default Tower for the ProductionLine's robot arm

Method Summary

Modifier and Type	Method	Description
void	addDisk(Disk d)	Adds a disk to the input of the ProductionLine
void	process()	Processes through the input line of Disks.
Tower	removeTower()	Removes a Tower from the output Queue
void	unloadRobot()	Flips the Tower of Disks currently held by the robot arm and places it on the output line.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

input

private java.util.Queue<Disk> input

A Queue of Disks that represent the input being fed into the production line

output

private java.util.Queue<Tower> output

A Queue of Towers that represent the output of the production line. These towers should all be pyramids (no Disk will be larger than the Disk below it in the Tower)

robotArm

private Tower robotArm

A Tower representing the Disks that the robot arm is currently holding

Constructor Detail

ProductionLine

public ProductionLine()

Constructs a ProductionLine object by creating default LinkedLists for the input and output lines and creating the default Tower for the ProductionLine's robot arm

Method Detail

addDisk

public void addDisk(Disk d)

Adds a disk to the input of the ProductionLine

Parameters:

d - the Disk to be added to the input line of production line

unloadRobot

public void unloadRobot()

Flips the Tower of Disks currently held by the robot arm and places it on the output line.

process

public void process()

Processes through the input line of Disks. If the Disk is greater than the current top Disk of the robot arm, the robot arm will pick up the disk. Else, the robot arm will flip the current Tower of Disks and place it onto the output line, and then pick up the next Disk. At the end, there will be an output line consisting of pyramid Towers.

removeTower

public Tower removeTower()

Removes a Tower from the output Queue

Returns:

null if output is empty, the Tower if output is not empty.