/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.util;
import static java.lang.
String.format;
/**
* A utility class for validating arguments and state.
*/
public class
ValidationUtil {
public static
String hasText(
String argument,
String argName){
isNotNull(
argument,
argName);
if(
argument.
isEmpty()){
throw new
IllegalArgumentException(
format("argument '%s' can't be an empty string",
argName));
}
return
argument;
}
public static <E> E
isNotNull(E
argument,
String argName){
if(
argument == null){
throw new
IllegalArgumentException(
format("argument '%s' can't be null",
argName));
}
return
argument;
}
private
ValidationUtil(){}
public static void
isNotNegative(int
permits,
String argumentName) {
if (
permits < 0) {
throw new
IllegalArgumentException(
argumentName+" cannot be negative!");
}
}
public static void
shouldBePositive(long
value,
String argumentName) {
if (
value <= 0) {
throw new
IllegalArgumentException(
argumentName + " should be positive!");
}
}
}