arnekeller/kit-programmieren-ws1920-final2
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Correctly handle common prefixes in command names

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This commit is contained in:
Arne Keller 2020-03-11 11:19:34 +01:00
parent e7c3a40ac0
commit f39fdee4c9
3 changed files with 15 additions and 13 deletions
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10
generic_waf2_test_output.txt
View File

@ -1,7 +1,7 @@
Error, no card to draw exists
Error, can not get resources: game not started
Error, could not build item
Error, unknown command
Error, invalid build command
Error, can not get buildings: game not started
Error, can not get buildable items: game not started
Error, not expecting dice roll
@ -14,7 +14,7 @@ EMPTY
wood
wood
Error, could not build item
Error, unknown command
Error, invalid build command
EMPTY
EMPTY
Error, not expecting dice roll
@ -29,7 +29,7 @@ spider
Error, roll dice, please
wood
Error, awaiting dice roll, can not build
Error, unknown command
Error, invalid build command
EMPTY
Error, can not get buildable items: awaiting dice roll
Error, unexpected dice size
@ -39,7 +39,7 @@ snake
Error, roll dice, please
wood
Error, awaiting dice roll, can not build
Error, unknown command
Error, invalid build command
EMPTY
Error, can not get buildable items: awaiting dice roll
Error, unexpected dice size
@ -49,7 +49,7 @@ tiger
Error, roll dice, please
wood
Error, awaiting dice roll, can not build
Error, unknown command
Error, invalid build command
EMPTY
Error, can not get buildable items: awaiting dice roll
Error, unexpected dice size

4
src/edu/kit/informatik/cardgame/ui/command/Build.java
View File

@ -12,7 +12,7 @@ import java.util.regex.Pattern;
import static edu.kit.informatik.cardgame.ui.command.CommandFactory.BUILD;
public final class Build extends Command {
private static final Pattern BUILD_ARGUMENT = Pattern.compile(BUILD + "(\\w+)");
private static final Pattern BUILD_ARGUMENT = Pattern.compile(" (\\w+)");
private Item item;
@ -31,7 +31,7 @@ public final class Build extends Command {
if (input == null || !input.startsWith(BUILD)) {
throw new InvalidInputException("unknown command");
}
final Matcher matcher = Build.BUILD_ARGUMENT.matcher(input);
final Matcher matcher = Build.BUILD_ARGUMENT.matcher(input.substring(BUILD.length()));
if (!matcher.matches()) {
throw new InvalidInputException("invalid build command");
}

14
src/edu/kit/informatik/cardgame/ui/command/CommandFactory.java
View File

@ -2,27 +2,27 @@ package edu.kit.informatik.cardgame.ui.command;
import edu.kit.informatik.cardgame.ui.InvalidInputException;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.function.Supplier;
/**
* Factory used to parse user input into commands.
*
* @author Arne Keller
* @version 1.0
* @version 1.1
*/
public final class CommandFactory {
public static final String START = "start";
public static final String DRAW = "draw";
public static final String LIST_RESOURCES = "list-resources";
public static final String BUILD = "build ";
public static final String BUILD = "build";
public static final String LIST_BUILDINGS = "list-buildings";
public static final String BUILDABLE = "build?";
public static final String ROLL_DICE = "rollD";
public static final String RESET = "reset";
private static final Map<String, Supplier<Command>> COMMANDS = new HashMap<>();
private static final TreeMap<String, Supplier<Command>> COMMANDS = new TreeMap<>();
static {
// initialize registered commands
@ -50,8 +50,10 @@ public final class CommandFactory {
* @throws InvalidInputException if user input is invalid
*/
public static Command getCommand(String input) throws InvalidInputException {
Supplier<Command> commandSupplier = COMMANDS.entrySet().stream()
.filter(entry -> input.startsWith(entry.getKey())).map(Map.Entry::getValue)
Supplier<Command> commandSupplier = COMMANDS
.descendingKeySet().stream()
.filter(input::startsWith)
.map(COMMANDS::get)
.findFirst().orElse(null);
if (commandSupplier != null) {
Command command = commandSupplier.get();