net.minestom.server.utils.validate.Check Maven / Gradle / Ivy
package net.minestom.server.utils.validate;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.text.MessageFormat;
import java.util.Objects;
/**
* Convenient class to check for common exceptions.
*/
public final class Check {
private Check() {
}
@Contract("null, _ -> fail")
public static void notNull(@Nullable Object object, @NotNull String reason) {
if (Objects.isNull(object)) {
throw new NullPointerException(reason);
}
}
@Contract("null, _, _ -> fail")
public static void notNull(@Nullable Object object, @NotNull String reason, Object... arguments) {
if (Objects.isNull(object)) {
throw new NullPointerException(MessageFormat.format(reason, arguments));
}
}
@Contract("true, _ -> fail")
public static void argCondition(boolean condition, @NotNull String reason) {
if (condition) {
throw new IllegalArgumentException(reason);
}
}
@Contract("true, _, _ -> fail")
public static void argCondition(boolean condition, @NotNull String reason, Object... arguments) {
if (condition) {
throw new IllegalArgumentException(MessageFormat.format(reason, arguments));
}
}
@Contract("_ -> fail")
public static void fail(@NotNull String reason) {
throw new IllegalArgumentException(reason);
}
@Contract("true, _ -> fail")
public static void stateCondition(boolean condition, @NotNull String reason) {
if (condition) {
throw new IllegalStateException(reason);
}
}
@Contract("true, _, _ -> fail")
public static void stateCondition(boolean condition, @NotNull String reason, Object... arguments) {
if (condition) {
throw new IllegalStateException(MessageFormat.format(reason, arguments));
}
}
@Contract("false, _ -> fail")
public static void isTrue(boolean condition, @NotNull String reason) {
if (!condition) {
throw new IllegalStateException(reason);
}
}
@Contract("false, _, _ -> fail")
public static void isTrue(boolean condition, @NotNull String reason, Object... arguments) {
if (!condition) {
throw new IllegalStateException(MessageFormat.format(reason, arguments));
}
}
}