Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Tencent is pleased to support the open source community by making Tinker available.
 *
 * Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/BSD-3-Clause
 *
 * 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.
 */

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.PrintStream;

public class Main {
    public static String getExceptionCauseString(final Throwable ex) {
        final ByteArrayOutputStream bos = new ByteArrayOutputStream();
        final PrintStream ps = new PrintStream(bos);

        try {
            // print directly
            Throwable t = ex;
            while (t.getCause() != null) {
                t = t.getCause();
            }
            t.printStackTrace(ps);
            return toVisualString(bos.toString());
        } finally {
            try {
                bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    private static String toVisualString(String src) {
        boolean cutFlg = false;

        if (null == src) {
            return null;
        }

        char[] chr = src.toCharArray();
        if (null == chr) {
            return null;
        }

        int i = 0;
        for (; i < chr.length; i++) {
            if (chr[i] > 127) {
                chr[i] = 0;
                cutFlg = true;
                break;
            }
        }

        if (cutFlg) {
            return new String(chr, 0, i);
        } else {
            return src;
        }
    }
}