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https://gitlab.com/arnekeller/kit-programmieren-ws1920-final1.git
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Store available commands in map
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parent
8803aab42a
commit
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@ -2,6 +2,10 @@ package edu.kit.informatik.ui.command;
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import edu.kit.informatik.ui.InvalidInputException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.function.Supplier;
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/**
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* Factory used to parse user input into commands.
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*
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@ -99,6 +103,29 @@ public final class CommandFactory {
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* Name of the step command.
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*/
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public static final String STEP = "step";
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private static final Map<String, Supplier<Command>> COMMANDS = new HashMap<>();
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static {
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COMMANDS.put(ADD_TRACK, AddTrack::new);
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COMMANDS.put(ADD_SWITCH, AddSwitch::new);
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COMMANDS.put(DELETE_TRACK, DeleteTrack::new);
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COMMANDS.put(LIST_TRACKS, ListTracks::new);
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COMMANDS.put(SET_SWITCH, SetSwitch::new);
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COMMANDS.put(CREATE_ENGINE, CreateEngine::new);
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COMMANDS.put(LIST_ENGINES, ListEngines::new);
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COMMANDS.put(CREATE_COACH, CreateCoach::new);
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COMMANDS.put(LIST_COACHES, ListCoaches::new);
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COMMANDS.put(CREATE_TRAIN_SET, CreateTrainSet::new);
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COMMANDS.put(LIST_TRAIN_SETS, ListTrainSets::new);
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COMMANDS.put(DELETE_ROLLING_STOCK, DeleteRollingStock::new);
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COMMANDS.put(ADD_TRAIN, AddTrain::new);
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COMMANDS.put(DELETE_TRAIN, DeleteTrain::new);
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COMMANDS.put(LIST_TRAINS, ListTrains::new);
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COMMANDS.put(SHOW_TRAIN, ShowTrain::new);
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COMMANDS.put(PUT_TRAIN, PutTrain::new);
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COMMANDS.put(STEP, Step::new);
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}
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/**
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* Utility class -> private constructor.
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@ -109,52 +136,18 @@ public final class CommandFactory {
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/**
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* Parse a single line of user input into one command.
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* @param command user input line
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* @param input user input line
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* @return a fully specified command object
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* @throws InvalidInputException if user input is invalid
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*/
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public static Command getCommand(final String command) throws InvalidInputException {
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Command commandObject;
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if (command.startsWith(ADD_TRACK)) {
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commandObject = new AddTrack();
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} else if (command.startsWith(ADD_SWITCH)) {
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commandObject = new AddSwitch();
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} else if (command.startsWith(DELETE_TRACK)) {
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commandObject = new DeleteTrack();
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} else if (command.startsWith(LIST_TRACKS)) {
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commandObject = new ListTracks();
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} else if (command.startsWith(SET_SWITCH)) {
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commandObject = new SetSwitch();
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} else if (command.startsWith(CREATE_ENGINE)) {
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commandObject = new CreateEngine();
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} else if (command.startsWith(LIST_ENGINES)) {
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commandObject = new ListEngines();
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} else if (command.startsWith(CREATE_COACH)) {
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commandObject = new CreateCoach();
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} else if (command.startsWith(LIST_COACHES)) {
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commandObject = new ListCoaches();
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} else if (command.startsWith(CREATE_TRAIN_SET)) {
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commandObject = new CreateTrainSet();
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} else if (command.startsWith(LIST_TRAIN_SETS)) {
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commandObject = new ListTrainSets();
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} else if (command.startsWith(DELETE_ROLLING_STOCK)) {
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commandObject = new DeleteRollingStock();
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} else if (command.startsWith(ADD_TRAIN)) {
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commandObject = new AddTrain();
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} else if (command.startsWith(DELETE_TRAIN)) {
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commandObject = new DeleteTrain();
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} else if (command.startsWith(LIST_TRAINS)) {
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commandObject = new ListTrains();
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} else if (command.startsWith(SHOW_TRAIN)) {
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commandObject = new ShowTrain();
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} else if (command.startsWith(PUT_TRAIN)) {
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commandObject = new PutTrain();
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} else if (command.startsWith(STEP)) {
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commandObject = new Step();
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} else {
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throw new InvalidInputException("unknown command");
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public static Command getCommand(String input) throws InvalidInputException {
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for (Map.Entry<String, Supplier<Command>> entry : COMMANDS.entrySet()) {
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if (input.startsWith(entry.getKey())) {
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Command command = entry.getValue().get();
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command.parse(input);
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return command;
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}
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}
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commandObject.parse(command);
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return commandObject;
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throw new InvalidInputException("unknown command");
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}
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}
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