adapter/runtime/src/main/java/org/apache/rocketmq/eventbridge/adapter/runtime/utils/ExceptionUtil.java

/*
 * 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.rocketmq.eventbridge.adapter.runtime.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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

public class ExceptionUtil {

    private static final Logger LOGGER = LoggerFactory.getLogger(ExceptionUtil.class);

    public static String getErrorMessage(Throwable e) {
        if (null == e) {
            return null;
        }

        try (StringWriter stringWriter = new StringWriter();
                PrintWriter writer = new PrintWriter(stringWriter)) {
            e.printStackTrace(writer);
            writer.flush();
            stringWriter.flush();
            StringBuffer buffer = stringWriter.getBuffer();
            return buffer.toString();
        } catch (Throwable ex) {
            LOGGER.error("", ex);
        }
        return null;
    }
}