Subversion Repositories usb_fpga_2_14

/*%

   Java host software API of ZTEX SDK

   Copyright (C) 2009-2017 ZTEX GmbH.

   http://www.ztex.de

   This Source Code Form is subject to the terms of the Mozilla Public

   License, v. 2.0. If a copy of the MPL was not distributed with this file,

   You can obtain one at http://mozilla.org/MPL/2.0/.

   Alternatively, the contents of this file may be used under the terms

   of the GNU General Public License Version 3, as described below:

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License version 3 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.

   You should have received a copy of the GNU General Public License

   along with this program; if not, see http://www.gnu.org/licenses/.

%*/

package ztex;

import java.io.*;

import java.util.*;

import java.net.*;

/** * Creates an input stream from a regular file or a system resource file (i.e. a file from the current jar file). */

public class JInputStream {

/**

  * Creates an InputStream instance from a giving file name.

  * @param fileName The file name.

  * @throws SecurityException Signals a security violation.

  * @throws FileNotFoundException Thrown if the file was not found.

  * @return The InputStream instance.

  */

    static public InputStream getInputStream ( String fileName ) throws SecurityException, FileNotFoundException {

        InputStream is = null;

        try {

// Step 1: Normal way (i.e. from the current directory)

            is = new FileInputStream(fileName);

        }

        catch ( FileNotFoundException e ) {

// Step 2: As system ressource

            is = ClassLoader.getSystemResourceAsStream( fileName );

        }

        if ( is == null )

            throw new FileNotFoundException("File not found: "+fileName);

        return is;

    }

}