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/* * @(#)ScriptException.java 1.2 05/11/17 14:24:14 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTAIL. Use is subject to license terms. */ 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 * @version 1.0 * @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><unknown></i> * if a description of the source is unavailable. */ public String getFileName() { return fileName; } }