arnekeller/kit-programmieren-ws1920-final2
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Initial command parser

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This commit is contained in:
Arne Keller 2020-02-24 17:02:48 +01:00
parent 63d0af1f00
commit 343ae03421
11 changed files with 144 additions and 28 deletions
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32
src/edu/kit/informatik/model/Card.java Normal file
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@ -0,0 +1,32 @@
package edu.kit.informatik.model;
public enum Card {
WOOD,
METAL,
PLASTIC,
SPIDER,
SNAKE,
TIGER,
THUNDERSTORM;
public static Card parse(String input) {
switch (input) {
case "wood":
return WOOD;
case "metal":
return METAL;
case "plastic":
return PLASTIC;
case "spider":
return SPIDER;
case "snake":
return SNAKE;
case "tiger":
return TIGER;
case "thunderstorm":
return THUNDERSTORM;
default:
return null;
}
}
}

18
src/edu/kit/informatik/ui/command/Build.java
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@ -3,7 +3,16 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static edu.kit.informatik.ui.command.CommandFactory.BUILD;
public class Build extends Command {
private static final Pattern BUILD_ARGUMENT = Pattern.compile(BUILD + "(\\w+)");
private String item;
@Override
public void apply(CardGame game) throws InvalidInputException {
@ -11,6 +20,13 @@ public class Build extends Command {
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(BUILD)) {
throw new InvalidInputException("unknown command");
}
Matcher matcher = BUILD_ARGUMENT.matcher(input);
if (!matcher.matches()) {
throw new InvalidInputException("invalid build command");
}
item = matcher.group(1);
}
}

11
src/edu/kit/informatik/ui/command/Buildable.java
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@ -3,14 +3,21 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import static edu.kit.informatik.ui.command.CommandFactory.BUILDABLE;
public class Buildable extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
public void apply(CardGame game) {
}
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(BUILDABLE)) {
throw new InvalidInputException("unknown command");
}
if (!input.equals(BUILDABLE)) {
throw new InvalidInputException("invalid build? argument: none expected");
}
}
}

2
src/edu/kit/informatik/ui/command/CommandFactory.java
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@ -13,6 +13,8 @@ import java.util.function.Supplier;
* @version 1.0
*/
public final class CommandFactory {
public static final String CARD = "wood|metal|plastic|spider|snake|tiger|thunderstorm";
public static final String START = "start";
public static final String DRAW = "draw";
public static final String LIST_RESOURCES = "list-resources";

9
src/edu/kit/informatik/ui/command/Draw.java
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@ -3,6 +3,8 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import static edu.kit.informatik.ui.command.CommandFactory.DRAW;
public class Draw extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
@ -11,7 +13,12 @@ public class Draw extends Command {
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(DRAW)) {
throw new InvalidInputException("unknown command");
}
if (!input.equals(DRAW)) {
throw new InvalidInputException("invalid draw argument: none expected");
}
}
/*
Es existieren folgende Fallunterscheidungen:

9
src/edu/kit/informatik/ui/command/ListBuildings.java
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@ -3,6 +3,8 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import static edu.kit.informatik.ui.command.CommandFactory.LIST_BUILDINGS;
public class ListBuildings extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
@ -11,6 +13,11 @@ public class ListBuildings extends Command {
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(LIST_BUILDINGS)) {
throw new InvalidInputException("unknown command");
}
if (!input.equals(LIST_BUILDINGS)) {
throw new InvalidInputException("invalid list-buildings argument: none expected");
}
}
}

11
src/edu/kit/informatik/ui/command/ListResources.java
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@ -3,15 +3,22 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import static edu.kit.informatik.ui.command.CommandFactory.LIST_RESOURCES;
public class ListResources extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
public void apply(CardGame game) {
}
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(LIST_RESOURCES)) {
throw new InvalidInputException("unknown command");
}
if (!input.equals(LIST_RESOURCES)) {
throw new InvalidInputException("invalid list-resources argument: none expected");
}
}
/*

16
src/edu/kit/informatik/ui/command/Quit.java
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@ -1,16 +0,0 @@
package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
public class Quit extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
}
@Override
public void parse(String input) throws InvalidInputException {
}
}

11
src/edu/kit/informatik/ui/command/Reset.java
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@ -3,14 +3,21 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import static edu.kit.informatik.ui.command.CommandFactory.RESET;
public class Reset extends Command {
@Override
public void apply(CardGame game) throws InvalidInputException {
public void apply(CardGame game) {
}
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(RESET)) {
throw new InvalidInputException("unknown command");
}
if (!input.equals(RESET)) {
throw new InvalidInputException("invalid reset argument: none expected");
}
}
}

21
src/edu/kit/informatik/ui/command/RollDice.java
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@ -3,7 +3,18 @@ package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static edu.kit.informatik.ui.command.CommandFactory.ROLL_DICE;
public class RollDice extends Command {
private static final Pattern ROLL_DICE_ARGUMENTS = Pattern.compile(ROLL_DICE + "(\\d) (\\d)");
private int size;
private int rolledNumber;
@Override
public void apply(CardGame game) throws InvalidInputException {
@ -11,6 +22,14 @@ public class RollDice extends Command {
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(ROLL_DICE)) {
throw new InvalidInputException("unknown command");
}
Matcher matcher = ROLL_DICE_ARGUMENTS.matcher(input);
if (!matcher.matches()) {
throw new InvalidInputException("invalid roll dice syntax");
}
size = Integer.parseInt(matcher.group(1));
rolledNumber = Integer.parseInt(matcher.group(2));
}
}

32
src/edu/kit/informatik/ui/command/Start.java
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@ -1,17 +1,45 @@
package edu.kit.informatik.ui.command;
import edu.kit.informatik.model.Card;
import edu.kit.informatik.model.CardGame;
import edu.kit.informatik.ui.InvalidInputException;
import java.util.List;
import java.util.Objects;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import static edu.kit.informatik.ui.command.CommandFactory.CARD;
public class Start extends Command {
private static final Pattern START_ARGUMENTS = Pattern.compile("start (?:(" + CARD + "),){63},(" + CARD + ")");
private List<Card> cards;
@Override
public void apply(CardGame game) throws InvalidInputException {
public void apply(CardGame game) {
}
@Override
public void parse(String input) throws InvalidInputException {
if (input == null || !input.startsWith(CommandFactory.START)) {
throw new InvalidInputException("unknown command");
}
Matcher matcher = START_ARGUMENTS.matcher(input);
if (!matcher.matches()) {
throw new InvalidInputException("invalid start arguments");
}
cards = IntStream.rangeClosed(1, matcher.groupCount())
.mapToObj(matcher::group)
.map(Card::parse)
.collect(Collectors.toList());
if (cards.stream().anyMatch(Objects::isNull)) {
cards = null;
throw new InvalidInputException("invalid start argument value(s)");
}
}
/*
Dieser Befehl ermöglicht es dem Benutzer, ein neues Spiel zu starten. Dieser Befehl kann nur