com.yoho.core.trace.util.ExceptionUtils.java Source code

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Here is the source code for com.yoho.core.trace.util.ExceptionUtils.java

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/*
 * Copyright 2013-2015 the original author or authors.
 *
 * 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.yoho.core.trace.util;

import org.apache.commons.logging.Log;

/**
 * Utility class for logging exceptions. Useful for test purposes -
 * when a warning message should be presented an exception can be thrown.
 * <p>
 * The purpose of this class is not to throw exceptions from the user's code
 * when there are some issues with tracing.
 *
 * @author Spencer Gibb
 *
 * @since 1.0.0
 */
public final class ExceptionUtils {
    private static final Log log = org.apache.commons.logging.LogFactory.getLog(ExceptionUtils.class);
    private static boolean fail = false;

    private ExceptionUtils() {
        throw new IllegalStateException("Utility class can't be instantiated");
    }

    public static void warn(String msg) {
        if (fail) {
            throw new IllegalStateException(msg);
        }
        log.warn(msg);
    }

    public static void setFail(boolean fail) {
        ExceptionUtils.fail = fail;
    }
}