summarize Throwable Exception - Java java.lang

Java examples for java.lang:Throwable

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Description

summarize Throwable Exception

Demo Code

/*//from w w w.  j  a  v a  2  s  . c  o  m
 * Copyright 2013-2015 EMC Corporation. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 * http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 * or in the "license" file accompanying this file. This file 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.java2s;

import java.text.MessageFormat;

public class Main {
    public static String summarize(Throwable t) {
        Throwable cause = getCause(t);
        StringBuilder summary = new StringBuilder();
        summary.append(MessageFormat.format("[{0}] {1}", t, cause));
        StackTraceElement[] elements = cause.getStackTrace();
        for (int i = 0; i < 15 && i < elements.length; i++) {
            summary.append("\n    at ").append(elements[i]);
        }
        return summary.toString();
    }

    public static Throwable getCause(Throwable t) {
        Throwable cause = t;
        while (cause.getCause() != null)
            cause = cause.getCause();
        return cause;
    }
}

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