/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.script; /** * The generic <code>Exception</code> class for the Scripting APIs.  Checked * exception types thrown by underlying scripting implementations must be wrapped in instances of * <code>ScriptException</code>.  The class has members to store line and column numbers and * filenames if this information is available. * * @author Mike Grogan * @since 1.6 */public class ScriptException extends Exception {     private String fileName;    private int lineNumber;    private int columnNumber;     /**     * Creates a <code>ScriptException</code> with a String to be used in its message.     * Filename, and line and column numbers are unspecified.     *     * @param s The String to use in the message.     */    public ScriptException(String s) {        super(s);        fileName = null;        lineNumber = -1;        columnNumber = -1;    }     /**     * Creates a <code>ScriptException</code> wrapping an <code>Exception</code> thrown by an underlying     * interpreter.  Line and column numbers and filename are unspecified.     *     * @param e The wrapped <code>Exception</code>.     */    public ScriptException(Exception e) {        super(e);        fileName = null;        lineNumber = -1;        columnNumber = -1;    }     /**     * Creates a <code>ScriptException</code> with message, filename and linenumber to     * be used in error messages.     *     * @param message The string to use in the message     *     * @param fileName The file or resource name describing the location of a script error     * causing the <code>ScriptException</code> to be thrown.     *     * @param lineNumber A line number describing the location of a script error causing     * the <code>ScriptException</code> to be thrown.     */    public ScriptException(String message, String fileName, int lineNumber) {        super(message);        this.fileName = fileName;        this.lineNumber = lineNumber;        this.columnNumber = -1;    }     /**     * <code>ScriptException</code> constructor specifying message, filename, line number     * and column number.     * @param message The message.     * @param fileName The filename     * @param lineNumber the line number.     * @param columnNumber the column number.     */    public ScriptException(String message,            String fileName,            int lineNumber,            int columnNumber) {        super(message);        this.fileName = fileName;        this.lineNumber = lineNumber;        this.columnNumber = columnNumber;    }     /**     * Returns a message containing the String passed to a constructor as well as     * line and column numbers and filename if any of these are known.     * @return The error message.     */    public String getMessage() {        String ret = super.getMessage();        if (fileName != null) {            ret += (" in " + fileName);            if (lineNumber != -1) {                ret += " at line number " + lineNumber;            }             if (columnNumber != -1) {                ret += " at column number " + columnNumber;            }        }         return ret;    }     /**     * Get the line number on which an error occurred.     * @return The line number.  Returns -1 if a line number is unavailable.     */    public int getLineNumber() {        return lineNumber;    }     /**     * Get the column number on which an error occurred.     * @return The column number.  Returns -1 if a column number is unavailable.     */    public int getColumnNumber() {        return columnNumber;    }     /**     * Get the source of the script causing the error.     * @return The file name of the script or some other string describing the script     * source.  May return some implementation-defined string such as <i>&lt;unknown&gt;</i>     * if a description of the source is unavailable.     */    public String getFileName() {        return fileName;    }}