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