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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.alipay.sofa.lookout.server.interfaces.common;

import com.alipay.sofa.lookout.server.interfaces.exception.PromClientException;

/**
 * Created by [email protected] on 2018/3/8.
 */
public class Preconditions {

    public static  T checkNotNull(T reference) {
        if (reference == null) {
            throw new PromClientException("NullPointer");
        } else {
            return reference;
        }
    }

    public static void checkTrue(boolean expression, String errMsg) {
        if (!expression) {
            throw new PromClientException(errMsg);
        }
    }
}