io.github.saoxuequ.http.request.utils.Preconditions Maven / Gradle / Ivy

package io.github.saoxuequ.http.request.utils;

public class Preconditions {
    private Preconditions() {
    }

    public static void checkState(boolean expression, String message) {
        if (!expression) {
            throw new IllegalStateException(message);
        }
    }

    public static void checkState(boolean expression) {
        if (!expression) {
            throw new IllegalStateException();
        }
    }

    public static void checkNotNull(Object obj) {
        if (obj == null) {
            throw new NullPointerException();
        }
    }

    public static void checkNotNull(Object obj, String errorMessage) {
        if (obj == null) {
            throw new NullPointerException(errorMessage);
        }
    }

    public static void checkArgument(boolean expression) {
        if (!expression) {
            throw new IllegalArgumentException();
        }
    }

    public static void checkArgument(boolean expression, String errorMessage) {
        if (!expression) {
            throw new IllegalArgumentException(errorMessage);
        }
    }

}