1 /*

     2 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17  

    18 package com.nokia.ant;

    19 

    20 import java.io.*;

    21 import org.apache.bsf.BSFException;

    22 import org.apache.bsf.BSFManager;

    23 

    24 /**

    25  * Override default implementation to support source with are not files.

    26  * 

    27  * @author Helium Team

    28  * @see jep.BSFJepEngine

    29  */

    30 public class BSFJepEngine extends jep.BSFJepEngine

    31 {

    32 

    33     static

    34     {

    35         BSFManager.registerScriptingEngine("jep", "com.nokia.ant.BSFJepEngine", new String[]

    36         { "py" });

    37     }

    38 

    39     /**

    40      * Execute a script.

    41      * 

    42      * @param source

    43      *            a <code>String</code> value

    44      * @param lineNo

    45      *            an <code>int</code> value

    46      * @param columnNo

    47      *            an <code>int</code> value

    48      * @param script

    49      *            an <code>Object</code> value

    50      * @exception BSFException

    51      *                if an error occurs

    52      */

    53     public final void exec(final String source, final int lineNo, final int columnNo, final Object script) throws BSFException

    54     {

    55         boolean deleteTemp = false;

    56         File file = null;

    57         try

    58         {

    59             file = new File(script.toString());

    60             if (file.exists() && file.isFile())

    61             {

    62                 super.exec(source, lineNo, columnNo, script);

    63             }

    64             else

    65             {

    66                 deleteTemp = true;

    67                 file = File.createTempFile("helium", null);

    68                 PrintWriter output = new PrintWriter(new FileOutputStream(file));

    69                 output.write(script.toString());

    70                 output.close();

    71                 super.exec(source, lineNo, columnNo, file.getAbsolutePath());

    72             }

    73         }

    74         catch (Exception e)

    75         {

    76             throw new BSFException(BSFException.REASON_EXECUTION_ERROR, e.toString(), e);

    77         }

    78         finally

    79         {

    80             terminate();

    81             if (deleteTemp && file != null && file.exists()) {

    82                 file.delete();

    83             }

    84         }

    85     }

    86 }