/*
 * 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 org.apache.shardingsphere.elasticjob.cloud.exception;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;

import java.io.PrintWriter;
import java.io.StringWriter;

/**
 * Exception utility.
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class ExceptionUtil {

    /**
     * Transform throwable to string.
     *
     * @param cause cause
     * @return string
     */
    public static String transform(final Throwable cause) {
        if (null == cause) {
            return "";
        }
        StringWriter result = new StringWriter();
        try (PrintWriter writer = new PrintWriter(result)) {
            cause.printStackTrace(writer);
        }
        return result.toString();
    }
}