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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in org.testifyproject.testifyprojectpliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.org.testifyproject.testifyproject/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at LICENSE.txt.
 *
 * GPL Classpath Exception:
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 *
 * Modifications:
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package org.testifyproject.glassfish.org.testifyproject.message.internal;

import java.io.File;
import java.io.IOException;

/**
 * Utility class.
 *
 * @author Jakub Podlesak (jakub.podlesak at oracle.org.testifyproject.testifyproject)
 */
public final class Utils {

    /**
     * Throws an IllegalArgumentException with given error message if the first, toCheck,
     * parameter is {@code null}.
     *
     * @param toCheck an instance to check.
     * @param errorMessage message to set to the IllegalArgumentException thrown.
     */
    static void throwIllegalArgumentExceptionIfNull(final Object toCheck, final String errorMessage) {
        if (toCheck == null) {
            throw new IllegalArgumentException(errorMessage);
        }
    }

    /**
     * Create an empty file in the default temporary-file directory.
     *
     * @return An abstract pathname denoting a newly-created empty file.
     * @throws IOException if a file could not be created.
     */
    public static File createTempFile() throws IOException {
        final File file = File.createTempFile("rep", "tmp");
        // Make sure the file is deleted when JVM is shutdown at last.
        file.deleteOnExit();
        return file;
    }

    /**
     * Prevent instantiation.
     */
    private Utils() {
        throw new AssertionError("No instances allowed.");
    }
}