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Refactor coach as an abstract class

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This commit is contained in:
Arne Keller 2020-02-19 18:44:25 +01:00
parent 8811dcf228
commit 33138162fb
5 changed files with 156 additions and 88 deletions
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81
src/edu/kit/informatik/model/Coach.java
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@ -1,6 +1,5 @@
package edu.kit.informatik.model;
import edu.kit.informatik.ui.CoachType;
import edu.kit.informatik.ui.InvalidInputException;
/**
@ -9,47 +8,7 @@ import edu.kit.informatik.ui.InvalidInputException;
* @author Arne Keller
* @version 1.0
*/
public class Coach extends RollingStock {
/**
* ASCII art representation of a passenger coach.
*/
private static final String[] PASSENGER_TEXT = new String[] {
"____________________",
"| ___ ___ ___ ___ |",
"| |_| |_| |_| |_| |",
"|__________________|",
"|__________________|",
" (O) (O) "
};
/**
* ASCII art representation of a freight coach.
*/
private static final String[] FREIGHT_TEXT = new String[] {
"| |",
"| |",
"| |",
"|__________________|",
" (O) (O) "
};
/**
* ASCII art represantation of a special coach.
*/
private static final String[] SPECIAL_TEXT = new String[] {
" ____",
"/--------------| |",
"\\--------------| |",
" | | | |",
" _|_|__________| |",
"|_________________|",
" (O) (O) "
};
/**
* The type of this coach (passenger, freight or special). TODO: consider using three classes
*/
private final CoachType type;
public abstract class Coach extends RollingStock {
/**
* The unique identifier of this coach.
*/
@ -58,17 +17,15 @@ public class Coach extends RollingStock {
/**
* Construct a new coach.
* @param identifier identifier to use
* @param type type of coach
* @param length length of coach
* @param couplingFront whether the coach should have a front coupling
* @param couplingBack whether the coach should have a back coupling
* @throws InvalidInputException on invalid user input (zero-sized coach)
*/
public Coach(final int identifier, final CoachType type, final int length,
public Coach(final int identifier, final int length,
final boolean couplingFront, final boolean couplingBack) throws InvalidInputException {
super(length, couplingFront, couplingBack);
this.identifier = identifier;
this.type = type;
}
@Override
@ -89,37 +46,7 @@ public class Coach extends RollingStock {
}
/**
* @return the type of this coach (passenger, freight or special)
* @return abbreviation of the type of this coach
*/
public CoachType getType() {
return type;
}
@Override
public String[] textRepresentation() {
switch (type) {
case PASSENGER:
return PASSENGER_TEXT;
case FREIGHT:
return FREIGHT_TEXT;
case SPECIAL:
return SPECIAL_TEXT;
default:
return null;
}
}
@Override
public String description() {
switch (type) {
case PASSENGER:
return "passenger coach";
case FREIGHT:
return "freight coach";
case SPECIAL:
return "special coach";
default:
return null;
}
}
public abstract String getType();
}

43
src/edu/kit/informatik/model/FreightCoach.java Normal file
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@ -0,0 +1,43 @@
package edu.kit.informatik.model;
import edu.kit.informatik.ui.InvalidInputException;
public class FreightCoach extends Coach {
/**
* ASCII art representation of a freight coach.
*/
private static final String[] FREIGHT_TEXT = new String[] {
"| |",
"| |",
"| |",
"|__________________|",
" (O) (O) "
};
/**
* Construct a new freight coach.
* @param identifier identifier to use
* @param length length of coach
* @param couplingFront whether the coach should have a front coupling
* @param couplingBack whether the coach should have a back coupling
* @throws InvalidInputException on invalid user input (zero-sized coach)
*/
public FreightCoach(int identifier, int length, boolean couplingFront, boolean couplingBack) throws InvalidInputException {
super(identifier, length, couplingFront, couplingBack);
}
@Override
public String description() {
return "freight coach";
}
@Override
public String[] textRepresentation() {
return FREIGHT_TEXT;
}
@Override
public String getType() {
return "f";
}
}

31
src/edu/kit/informatik/model/ModelRailwaySimulation.java
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@ -36,7 +36,7 @@ public class ModelRailwaySimulation {
/**
* List of coaches used in the simulation.
*/
private final List<Coach> coaches = new ArrayList<>();
private final Map<Integer, Coach> coaches = new HashMap<>();
/**
* List of trains simulated.
*/
@ -156,8 +156,17 @@ public class ModelRailwaySimulation {
if (id < 0) {
return -1;
}
Coach coach = new Coach(id, coachType, length, couplingFront, couplingBack);
coaches.add(id - 1, coach);
switch (coachType) {
case PASSENGER:
coaches.put(id, new PassengerCoach(id, length, couplingFront, couplingBack));
break;
case FREIGHT:
coaches.put(id, new FreightCoach(id, length, couplingFront, couplingBack));
break;
case SPECIAL:
coaches.put(id, new SpecialCoach(id, length, couplingFront, couplingBack));
break;
}
return id;
}
@ -166,13 +175,12 @@ public class ModelRailwaySimulation {
* @return the next coach identifier, or -1 if none available
*/
private int getNextCoachIdentifier() {
int id = 1;
for (Coach coach : coaches) {
if (coach.getNumericalIdentifier() == id) {
id++;
for (int id = 1; id > 0; id++) {
if (!coaches.containsKey(id)) {
return id;
}
}
return id;
return -1;
}
/**
@ -182,7 +190,8 @@ public class ModelRailwaySimulation {
if (coaches.isEmpty()) {
Terminal.printLine("No coach exists");
} else {
coach: for (Coach coach : coaches) {
coach: for (Integer identifier : coaches.keySet().stream().sorted().collect(Collectors.toList())) {
Coach coach = coaches.get(identifier);
for (Train train : trains.values()) {
if (train.contains(coach)) {
Terminal.printLine(String.format("%d %s %s %d %b %b",
@ -250,7 +259,7 @@ public class ModelRailwaySimulation {
}
engines.remove(rollingStock);
trainSets.remove(rollingStock);
coaches.remove(rollingStock);
coaches.values().remove(rollingStock);
return true;
}
@ -262,7 +271,7 @@ public class ModelRailwaySimulation {
public RollingStock getRollingStock(final String id) {
if (id.matches("W\\+?\\d+")) {
int coachId = Integer.parseInt(id.substring(1));
for (Coach coach : coaches) {
for (Coach coach : coaches.values()) {
if (coach.getNumericalIdentifier() == coachId) {
return coach;
}

44
src/edu/kit/informatik/model/PassengerCoach.java Normal file
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@ -0,0 +1,44 @@
package edu.kit.informatik.model;
import edu.kit.informatik.ui.InvalidInputException;
public class PassengerCoach extends Coach {
/**
* ASCII art representation of a passenger coach.
*/
private static final String[] PASSENGER_TEXT = new String[] {
"____________________",
"| ___ ___ ___ ___ |",
"| |_| |_| |_| |_| |",
"|__________________|",
"|__________________|",
" (O) (O) "
};
/**
* Construct a new passenger coach.
* @param identifier identifier to use
* @param length length of coach
* @param couplingFront whether the coach should have a front coupling
* @param couplingBack whether the coach should have a back coupling
* @throws InvalidInputException on invalid user input (zero-sized coach)
*/
public PassengerCoach(int identifier, int length, boolean couplingFront, boolean couplingBack) throws InvalidInputException {
super(identifier, length, couplingFront, couplingBack);
}
@Override
public String description() {
return "passenger coach";
}
@Override
public String[] textRepresentation() {
return PASSENGER_TEXT;
}
@Override
public String getType() {
return "p";
}
}

45
src/edu/kit/informatik/model/SpecialCoach.java Normal file
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@ -0,0 +1,45 @@
package edu.kit.informatik.model;
import edu.kit.informatik.ui.InvalidInputException;
public class SpecialCoach extends Coach {
/**
* ASCII art represantation of a special coach.
*/
private static final String[] SPECIAL_TEXT = new String[] {
" ____",
"/--------------| |",
"\\--------------| |",
" | | | |",
" _|_|__________| |",
"|_________________|",
" (O) (O) "
};
/**
* Construct a new special coach.
* @param identifier identifier to use
* @param length length of coach
* @param couplingFront whether the coach should have a front coupling
* @param couplingBack whether the coach should have a back coupling
* @throws InvalidInputException on invalid user input (zero-sized coach)
*/
public SpecialCoach(int identifier, int length, boolean couplingFront, boolean couplingBack) throws InvalidInputException {
super(identifier, length, couplingFront, couplingBack);
}
@Override
public String description() {
return "special coach";
}
@Override
public String[] textRepresentation() {
return SPECIAL_TEXT;
}
@Override
public String getType() {
return "s";
}
}