Multiverse-Core/src/main/java/org/mvplugins/multiverse/core/configuration/functions/DefaultSuggesterProvider.java

47 lines
1.4 KiB
Java

package org.mvplugins.multiverse.core.configuration.functions;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import org.jetbrains.annotations.Nullable;
public class DefaultSuggesterProvider {
private static final Map<Class<?>, NodeSuggester> SUGGESTERS = new HashMap<>();
public static void addDefaultSuggester(Class<?> clazz, NodeSuggester suggester) {
SUGGESTERS.put(clazz, suggester);
}
public static @Nullable NodeSuggester getDefaultSuggester(Class<?> clazz) {
if (clazz.isEnum()) {
// Special case for enums
return enumSuggester(clazz);
}
return SUGGESTERS.get(clazz);
}
private static NodeSuggester enumSuggester(Class<?> clazz) {
return input -> Arrays.stream(clazz.getEnumConstants())
.map(Object::toString)
.map(String::toLowerCase)
.collect(Collectors.toList());
}
private static final NodeSuggester BOOLEAN_SUGGESTER = input -> List.of("true", "false");
private static final NodeSuggester INTEGER_SUGGESTER = input -> IntStream.range(1, 10)
.boxed()
.map(String::valueOf)
.collect(Collectors.toList());
static {
addDefaultSuggester(Boolean.class, BOOLEAN_SUGGESTER);
addDefaultSuggester(Integer.class, INTEGER_SUGGESTER);
}
}