1 /*

     2 * Copyright (c) 2007 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 "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:  File operation for storing an ODT file to the file system

    15  *

    16 */

    17 

    18 

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

    20 

    21 import java.io.File;

    22 import java.io.FileOutputStream;

    23 import java.io.IOException;

    24 import java.io.InputStream;

    25 

    26 /**

    27  * Operation for storing data to the file system.

    28  */

    29 public class StoreOperation extends FileOperation

    30     {

    31 

    32     // CONSTANTS

    33     private static final int READ_BUFFER_SIZE = 1024;

    34 

    35     // Input stream for data input

    36     private InputStream iStream;

    37 

    38     /**

    39      * Create a store operation

    40      *

    41      * @param aDestination Destination file

    42      * @param aStream Input stream containing the data

    43      */

    44     public StoreOperation( File aDestination, InputStream aStream )

    45         {

    46         iFile = aDestination;

    47         iStream = aStream;

    48         }

    49 

    50     public void run()

    51         {

    52         int error = FileOperationEvent.UNKNOWN_ERROR;

    53 

    54         try

    55             {

    56             doStoreOperation();

    57             error = FileOperationEvent.OPERATION_SUCCESSFUL;

    58             }

    59         catch ( IOException ioe )

    60             {

    61             error = FileOperationEvent.IO_ERROR;

    62             }

    63 

    64         super.finished( iFile, error );

    65         }

    66 

    67     private void doStoreOperation()

    68         throws IOException

    69         {

    70         // Overwrite the existing file, if any

    71         if( iFile.exists() )

    72             {

    73             iFile.delete();

    74             }

    75 

    76         // Create the required directory structure for the destination file

    77         // (ignore return value)

    78         FileOperationUtils.createDirs( iFile );

    79 

    80         FileOutputStream output = null;

    81 

    82         try

    83             {

    84             output = new FileOutputStream( iFile );

    85 

    86             // Create a buffer for the data transfer

    87             byte[] buffer = new byte[ READ_BUFFER_SIZE ];

    88             int i = 0;

    89 

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

    91             // the whole stream is processed

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

    93                 {

    94                 output.write( buffer, 0, i );

    95                 }

    96             }

    97         finally

    98             {

    99             if( output != null )

   100                 {

   101                 output.close();

   102                 }

   103             }

   104         }

   105 

   106     }