90 lines
3.2 KiB
Java
90 lines
3.2 KiB
Java
package org.bukkit.conversations;
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import org.apache.commons.lang.math.NumberUtils;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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/**
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* NumericPrompt is the base class for any prompt that requires a {@link
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* Number} response from the user.
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*/
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public abstract class NumericPrompt extends ValidatingPrompt {
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public NumericPrompt() {
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super();
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}
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@Override
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protected boolean isInputValid(@NotNull ConversationContext context, @NotNull String input) {
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return NumberUtils.isNumber(input) && isNumberValid(context, NumberUtils.createNumber(input));
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}
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/**
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* Override this method to do further validation on the numeric player
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* input after the input has been determined to actually be a number.
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*
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* @param context Context information about the conversation.
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* @param input The number the player provided.
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* @return The validity of the player's input.
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*/
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protected boolean isNumberValid(@NotNull ConversationContext context, @NotNull Number input) {
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return true;
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}
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@Nullable
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@Override
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protected Prompt acceptValidatedInput(@NotNull ConversationContext context, @NotNull String input) {
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try {
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return acceptValidatedInput(context, NumberUtils.createNumber(input));
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} catch (NumberFormatException e) {
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return acceptValidatedInput(context, NumberUtils.INTEGER_ZERO);
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}
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}
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/**
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* Override this method to perform some action with the user's integer
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* response.
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*
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* @param context Context information about the conversation.
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* @param input The user's response as a {@link Number}.
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* @return The next {@link Prompt} in the prompt graph.
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*/
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@Nullable
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protected abstract Prompt acceptValidatedInput(@NotNull ConversationContext context, @NotNull Number input);
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@Nullable
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@Override
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protected String getFailedValidationText(@NotNull ConversationContext context, @NotNull String invalidInput) {
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if (NumberUtils.isNumber(invalidInput)) {
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return getFailedValidationText(context, NumberUtils.createNumber(invalidInput));
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} else {
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return getInputNotNumericText(context, invalidInput);
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}
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}
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/**
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* Optionally override this method to display an additional message if the
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* user enters an invalid number.
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*
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* @param context Context information about the conversation.
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* @param invalidInput The invalid input provided by the user.
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* @return A message explaining how to correct the input.
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*/
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@Nullable
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protected String getInputNotNumericText(@NotNull ConversationContext context, @NotNull String invalidInput) {
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return null;
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}
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/**
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* Optionally override this method to display an additional message if the
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* user enters an invalid numeric input.
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*
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* @param context Context information about the conversation.
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* @param invalidInput The invalid input provided by the user.
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* @return A message explaining how to correct the input.
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*/
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@Nullable
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protected String getFailedValidationText(@NotNull ConversationContext context, @NotNull Number invalidInput) {
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return null;
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}
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}
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