com.appdynamicspilot.util.ArgumentUtils.java Source code

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Here is the source code for com.appdynamicspilot.util.ArgumentUtils.java

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/*
 * Copyright 2015 AppDynamics, Inc.
 *
 * 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.appdynamicspilot.util;

import java.util.Collection;

import org.apache.commons.lang.StringUtils;

/**
 * A utility class which checks for null parameters, ranges which would have
 * been passed as arguments to code
 * 
 */
public final class ArgumentUtils {

    public static boolean isNull(final Object argumentValue) {
        return (argumentValue == null);
    }

    public static boolean isNullOrEmpty(final String argumentValue) {
        return (isNull(argumentValue) || StringUtils.isBlank(argumentValue));
    }

    public static boolean isNullOrEmpty(Collection argumentValue) {
        return (isNull(argumentValue) || argumentValue.size() == 0);
    }

    public static void checkNull(final String argumentName, final Object argumentValue) {
        if (isNull(argumentValue))
            throw new IllegalArgumentException("The supplied property " + argumentName + " was null");
    }

    public static void checkNullOrEmpty(final String argumentName, final String argumentValue) {
        if (isNullOrEmpty(argumentValue))
            throw new IllegalArgumentException(
                    "The supplied String property " + argumentName + " was null or empty");
    }

}