Subversion Repositories mkgmap

/*
 * Copyright (C) 2010.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * This program 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.
 */
package uk.me.parabola.imgfmt;

/**
 * Used for cases where the current map has failed to compile, but the error
 * is expected to be specific to the map (eg it is too big etc).  When this
 * error is thrown it may be possible for other maps on the command line to
 * succeed.
 *
 * If the error is such that processing further maps is not likely to be
 * successful then use {@link ExitException} instead.
 *
 * @author Steve Ratcliffe
 */
public class MapFailedException extends RuntimeException {

        /**
         * Constructs a new runtime exception with the calling method name
         * appended to the detail message.
         * The cause is not initialized, and may subsequently be initialized by a
         * call to {@link #initCause}.
         *
         * @param message the detail message. The detail message is saved for
         *                later retrieval by the {@link #getMessage()} method.
         */
        public MapFailedException(String message) {
                super(buildMessage(message));
        }

        /**
         * Constructs a new runtime exception with the calling method name
         * appended to the detail message and includes the cause.
         * <p>Note that the detail message associated with
         * <code>cause</code> is <i>not</i> automatically incorporated in
         * this runtime exception's detail message.
         *
         * @param message the detail message (which is saved for later retrieval
         *                by the {@link #getMessage()} method).
         * @param cause   the cause (which is saved for later retrieval by the
         *                {@link #getCause()} method).  (A <tt>null</tt> value is
         *                permitted, and indicates that the cause is nonexistent or
         *                unknown.)
         */
        public MapFailedException(String message, Throwable cause) {
                super(buildMessage(message), cause);
        }
       
        /**
         * Constructs a new runtime exception without appending the calling method
         * name to the detail message. The calling method can be appended by the
         * derived class if required.
         */
        protected MapFailedException(String message, boolean ignored) {
                super(message);
        }

        /**
         * Appends the calling method name to the supplied message.
         */
        protected static String buildMessage(String message) {
                String thrownBy = "";
                try{
                        StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
                        int callerPosInStack = 3;
                        String[] caller = stackTraceElements[callerPosInStack].getClassName().split("\\.");
                        thrownBy = " (thrown in " + caller[caller.length-1]+ "." +stackTraceElements[callerPosInStack].getMethodName() + "())";
                } catch(Exception e){
                }
                return message + thrownBy;
        }
}