/*

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

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  File operation for storing an ODT file to the file system

 *

*/

package com.nokia.tools.themeinstaller.defrep.operations;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

/**

 * Operation for storing data to the file system.

 */

public class StoreOperation extends FileOperation

    {

    // CONSTANTS

    private static final int READ_BUFFER_SIZE = 1024;

    // Input stream for data input

    private InputStream iStream;

    /**

     * Create a store operation

     *

     * @param aDestination Destination file

     * @param aStream Input stream containing the data

     */

    public StoreOperation( File aDestination, InputStream aStream )

        {

        iFile = aDestination;

        iStream = aStream;

        }

    public void run()

        {

        int error = FileOperationEvent.UNKNOWN_ERROR;

        try

            {

            doStoreOperation();

            error = FileOperationEvent.OPERATION_SUCCESSFUL;

            }

        catch ( IOException ioe )

            {

            error = FileOperationEvent.IO_ERROR;

            }

        super.finished( iFile, error );

        }

    private void doStoreOperation()

        throws IOException

        {

        // Overwrite the existing file, if any

        if( iFile.exists() )

            {

            iFile.delete();

            }

        // Create the required directory structure for the destination file

        // (ignore return value)

        FileOperationUtils.createDirs( iFile );

        FileOutputStream output = null;

        try

            {

            output = new FileOutputStream( iFile );

            // Create a buffer for the data transfer

            byte[] buffer = new byte[ READ_BUFFER_SIZE ];

            int i = 0;

            // Read data to the buffer and write it to the output stream until

            // the whole stream is processed

            while( ( i = iStream.read( buffer ) ) != -1 )

                {

                output.write( buffer, 0, i );

                }

            }

        finally

            {

            if( output != null )

                {

                output.close();

                }

            }

        }

    }