com.jaeksoft.searchlib.util.ExceptionUtils.java Source code

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Here is the source code for com.jaeksoft.searchlib.util.ExceptionUtils.java

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2015 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/
package com.jaeksoft.searchlib.util;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;

public class ExceptionUtils extends org.apache.commons.lang.exception.ExceptionUtils {

    public final static String getLocation(StackTraceElement[] stackTrace) {
        for (StackTraceElement element : stackTrace)
            if (element.getClassName().startsWith("com.jaeksoft"))
                return element.toString();
        return null;
    }

    public final static String getFirstLocation(StackTraceElement[] stackTrace) {
        for (StackTraceElement element : stackTrace) {
            String ele = element.toString();
            if (ele != null && ele.length() > 0)
                return ele;
        }
        return null;
    }

    public final static String getFullStackTrace(StackTraceElement[] stackTrace) {
        StringWriter sw = null;
        PrintWriter pw = null;
        try {
            sw = new StringWriter();
            pw = new PrintWriter(sw);
            for (StackTraceElement element : stackTrace)
                pw.println(element);
            return sw.toString();
        } finally {
            IOUtils.close(pw, sw);
        }
    }

    @SuppressWarnings("unchecked")
    public static <T extends Exception> T throwException(Exception exception, Class<T> exceptionClass) throws T {
        if (exception == null)
            return null;
        if (exceptionClass.isInstance(exception))
            throw (T) exception;
        try {
            return (T) exceptionClass.getConstructor(Exception.class).newInstance(exception);
        } catch (InstantiationException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch (IllegalArgumentException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e);
        } catch (NoSuchMethodException e) {
            throw new RuntimeException(e);
        } catch (SecurityException e) {
            throw new RuntimeException(e);
        }
    }
}