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annotate java/src/java/io/FileInputStream.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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children 2847134a5fc0
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6dd524f61e62 add dwt win and basic java stuff
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1 /**
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2 * Authors: Frank Benoit <keinfarbton@googlemail.com>
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3 */
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4 module java.io.FileInputStream;
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5
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6 import java.lang.all;
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7 import java.io.File;
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8 import java.io.InputStream;
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9
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10 version(TANGOSVN){
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11 import TangoFile = tango.io.device.File;
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12 } else {
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13 import TangoFile = tango.io.FileConduit;
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14 }
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15 import tango.core.Exception;
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16 import tango.text.convert.Format;
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17
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18 public class FileInputStream : java.io.InputStream.InputStream {
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19
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20 alias java.io.InputStream.InputStream.read read;
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21
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22 private TangoFile.File conduit;
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23 private ubyte[] buffer;
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24 private int buf_pos;
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25 private int buf_size;
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26 private const int BUFFER_SIZE = 0x10000;
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27 private bool eof;
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28
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29 public this ( String name ){
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30 conduit = new TangoFile.File( name );
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31 buffer = new ubyte[]( BUFFER_SIZE );
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32 }
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33
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34 public this ( java.io.File.File file ){
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35 implMissing( __FILE__, __LINE__ );
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36 conduit = new TangoFile.File( file.getAbsolutePath(), TangoFile.File.ReadExisting );
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37 buffer = new ubyte[]( BUFFER_SIZE );
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38 }
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39
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40 public override int read(){
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41 if( eof ){
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42 return -1;
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43 }
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44 try{
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45 if( buf_pos == buf_size ){
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46 buf_pos = 0;
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47 buf_size = conduit.input.read( buffer );
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48 }
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49 if( buf_size <= 0 ){
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50 eof = true;
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51 return -1;
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52 }
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53 assert( buf_pos < BUFFER_SIZE, Format( "{0} {1}", buf_pos, buf_size ) );
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54 assert( buf_size <= BUFFER_SIZE );
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55 int res = cast(int) buffer[ buf_pos ];
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56 buf_pos++;
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57 return res;
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58 }
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59 catch( IOException e ){
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60 eof = true;
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61 return -1;
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62 }
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63 }
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64
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65 public long skip( long n ){
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66 implMissing( __FILE__, __LINE__ );
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67 return 0L;
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68 }
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69
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70 public int available(){
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71 implMissing( __FILE__, __LINE__ );
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72 return 0;
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73 }
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74
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75 public override void close(){
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76 conduit.close();
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77 }
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78 }
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