com.mo.mohttp.misc.Args Maven / Gradle / Ivy

Go to download
package com.mo.mohttp.misc;


import java.util.Collection;

public final class Args {

    private Args(){}

    public static void check(final boolean expression, final String message) {
        if (!expression) {
            throw new IllegalArgumentException(message);
        }
    }

    public static void check(final boolean expression, final String message, final Object... args) {
        if (!expression) {
            throw new IllegalArgumentException(String.format(message, args));
        }
    }

    public static void check(final boolean expression, final String message, final Object arg) {
        if (!expression) {
            throw new IllegalArgumentException(String.format(message, arg));
        }
    }

    public static  T notNull(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " may not be null");
        }
        return argument;
    }

    public static  T notEmpty(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " may not be null");
        }
        if (TextUtils.isEmpty(argument)) {
            throw new IllegalArgumentException(name + " may not be empty");
        }
        return argument;
    }

    public static  T notBlank(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " may not be null");
        }
        if (TextUtils.isBlank(argument)) {
            throw new IllegalArgumentException(name + " may not be blank");
        }
        return argument;
    }

    public static  T containsNoBlanks(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " may not be null");
        }
        if (TextUtils.containsBlanks(argument)) {
            throw new IllegalArgumentException(name + " may not contain blanks");
        }
        return argument;
    }

    public static > T notEmpty(final T argument, final String name) {
        if (argument == null) {
            throw new IllegalArgumentException(name + " may not be null");
        }
        if (argument.isEmpty()) {
            throw new IllegalArgumentException(name + " may not be empty");
        }
        return argument;
    }

    public static int positive(final int n, final String name) {
        if (n <= 0) {
            throw new IllegalArgumentException(name + " may not be negative or zero");
        }
        return n;
    }

    public static long positive(final long n, final String name) {
        if (n <= 0) {
            throw new IllegalArgumentException(name + " may not be negative or zero");
        }
        return n;
    }

    public static int notNegative(final int n, final String name) {
        if (n < 0) {
            throw new IllegalArgumentException(name + " may not be negative");
        }
        return n;
    }

    public static long notNegative(final long n, final String name) {
        if (n < 0) {
            throw new IllegalArgumentException(name + " may not be negative");
        }
        return n;
    }

}