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annotate src/luan/lib/OsLib.java @ 160:138b9baee80b

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include IoLib.LuanFile fns in OsLib.LuanFile; improve PickleClient error output; git-svn-id: https://luan-java.googlecode.com/svn/trunk@161 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 19 Jun 2014 07:02:16 +0000
parents cc3a0578edac
children d310ebf4d6e7
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145
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1 package luan.lib;
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2
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3 import java.io.File;
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4 import luan.LuanState;
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5 import luan.LuanTable;
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6 import luan.LuanFunction;
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7 import luan.LuanJavaFunction;
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8 import luan.LuanException;
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9
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11 public final class OsLib {
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13 public static final LuanFunction LOADER = new LuanFunction() {
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14 @Override public Object call(LuanState luan,Object[] args) {
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15 LuanTable module = new LuanTable();
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16 try {
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17 add( module, "File", String.class );
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18 } catch(NoSuchMethodException e) {
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19 throw new RuntimeException(e);
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20 }
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21 return module;
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22 }
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23 };
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24
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25 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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26 t.put( method, new LuanJavaFunction(OsLib.class.getMethod(method,parameterTypes),null) );
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27 }
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29 public static class LuanFile {
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30 private final File file;
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31
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32 public LuanFile(String name) {
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33 this(new File(name));
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34 }
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35
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36 public LuanFile(File file) {
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37 this.file = file;
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38 }
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39
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40 public LuanTable child(String name) {
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41 return new LuanFile(new File(file,name)).table();
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42 }
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43
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44 public LuanTable children() {
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45 File[] files = file.listFiles();
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46 if( files==null )
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47 return null;
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48 LuanTable list = new LuanTable();
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49 for( File f : files ) {
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50 list.add(new LuanFile(f).table());
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51 }
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52 return list;
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53 }
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54
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55 LuanTable table() {
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56 LuanTable tbl = new IoLib.LuanFile(file).table();
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57 try {
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58 tbl.put( "name", new LuanJavaFunction(
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59 File.class.getMethod( "getName" ), file
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60 ) );
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61 tbl.put( "exists", new LuanJavaFunction(
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62 File.class.getMethod( "exists" ), file
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63 ) );
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64 tbl.put( "is_directory", new LuanJavaFunction(
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65 File.class.getMethod( "isDirectory" ), file
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66 ) );
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67 tbl.put( "is_file", new LuanJavaFunction(
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68 File.class.getMethod( "isFile" ), file
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69 ) );
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70 tbl.put( "delete", new LuanJavaFunction(
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71 File.class.getMethod( "delete" ), file
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72 ) );
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73 tbl.put( "mkdir", new LuanJavaFunction(
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74 File.class.getMethod( "mkdir" ), file
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75 ) );
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76 tbl.put( "mkdirs", new LuanJavaFunction(
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77 File.class.getMethod( "mkdirs" ), file
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78 ) );
146
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79 tbl.put( "last_modified", new LuanJavaFunction(
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80 File.class.getMethod( "lastModified" ), file
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81 ) );
145
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82 tbl.put( "child", new LuanJavaFunction(
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83 LuanFile.class.getMethod( "child", String.class ), this
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84 ) );
147
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85 tbl.put( "children", new LuanJavaFunction(
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86 LuanFile.class.getMethod( "children" ), this
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87 ) );
145
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88 } catch(NoSuchMethodException e) {
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89 throw new RuntimeException(e);
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90 }
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91 return tbl;
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92 }
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93 }
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94
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95 public static LuanTable File(String name) throws LuanException {
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96 return new LuanFile(name).table();
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97 }
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98
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99 }