Mercurial Hosting > luan
annotate core/src/luan/modules/IoLuan.java @ 761:99356cfde2f0
remove horrible java zip
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 20 Jul 2016 01:52:20 -0600 |
parents | ae612dfc57cb |
children | d2f61d5be9cc |
rev | line source |
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167
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1 package luan.modules; |
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2 |
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3 import java.io.InputStream; |
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4 import java.io.OutputStream; |
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5 import java.io.PrintStream; |
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6 import java.io.Reader; |
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7 import java.io.Writer; |
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8 import java.io.StringReader; |
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9 import java.io.BufferedReader; |
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10 import java.io.BufferedWriter; |
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11 import java.io.BufferedInputStream; |
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12 import java.io.BufferedOutputStream; |
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13 import java.io.File; |
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14 import java.io.FileInputStream; |
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15 import java.io.FileOutputStream; |
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16 import java.io.InputStreamReader; |
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17 import java.io.OutputStreamWriter; |
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18 import java.io.ByteArrayInputStream; |
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19 import java.io.DataInputStream; |
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20 import java.io.DataOutputStream; |
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21 import java.io.StringWriter; |
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22 import java.io.IOException; |
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23 import java.io.FileNotFoundException; |
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24 import java.net.URL; |
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25 import java.net.Socket; |
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26 import java.net.ServerSocket; |
701 | 27 import java.net.InetAddress; |
735 | 28 import java.net.Inet4Address; |
29 import java.net.NetworkInterface; | |
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30 import java.net.MalformedURLException; |
701 | 31 import java.net.UnknownHostException; |
735 | 32 import java.util.Enumeration; |
748 | 33 import java.util.List; |
706 | 34 import java.util.Map; |
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35 import luan.Luan; |
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36 import luan.LuanState; |
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37 import luan.LuanTable; |
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38 import luan.LuanFunction; |
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39 import luan.LuanJavaFunction; |
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40 import luan.LuanException; |
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41 import luan.modules.url.LuanUrl; |
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42 |
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43 |
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44 public final class IoLuan { |
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45 |
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46 private static void add(LuanTable t,String method,Class... parameterTypes) throws NoSuchMethodException { |
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47 t.rawPut( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) ); |
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48 } |
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49 |
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50 public static String read_console_line(String prompt) throws IOException { |
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51 if( prompt==null ) |
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52 prompt = "> "; |
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53 return System.console().readLine(prompt); |
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54 } |
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55 |
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56 |
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57 public interface LuanWriter { |
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58 public void write(LuanState luan,Object... args) throws LuanException, IOException; |
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59 public void close() throws IOException; |
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60 } |
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61 |
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62 public static LuanTable textWriter(final PrintStream out) { |
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63 LuanWriter luanWriter = new LuanWriter() { |
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64 |
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65 public void write(LuanState luan,Object... args) throws LuanException { |
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66 for( Object obj : args ) { |
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67 out.print( luan.toString(obj) ); |
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68 } |
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69 } |
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70 |
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71 public void close() { |
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72 out.close(); |
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73 } |
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74 }; |
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75 return writer(luanWriter); |
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76 } |
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77 |
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78 public static LuanTable textWriter(final Writer out) { |
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79 LuanWriter luanWriter = new LuanWriter() { |
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80 |
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81 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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82 for( Object obj : args ) { |
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83 out.write( luan.toString(obj) ); |
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84 } |
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85 } |
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86 |
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87 public void close() throws IOException { |
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88 out.close(); |
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89 } |
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90 }; |
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91 return writer(luanWriter); |
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92 } |
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93 |
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94 private static LuanTable writer(LuanWriter luanWriter) { |
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95 LuanTable writer = new LuanTable(); |
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96 try { |
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97 writer.rawPut( "write", new LuanJavaFunction( |
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98 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter |
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99 ) ); |
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100 writer.rawPut( "close", new LuanJavaFunction( |
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101 LuanWriter.class.getMethod( "close" ), luanWriter |
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102 ) ); |
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103 } catch(NoSuchMethodException e) { |
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104 throw new RuntimeException(e); |
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105 } |
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106 return writer; |
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107 } |
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108 |
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109 |
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110 public static LuanTable binaryWriter(final OutputStream out) { |
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111 LuanTable writer = new LuanTable(); |
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112 try { |
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113 writer.rawPut( "write", new LuanJavaFunction( |
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114 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out |
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115 ) ); |
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116 writer.rawPut( "close", new LuanJavaFunction( |
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117 OutputStream.class.getMethod( "close" ), out |
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118 ) ); |
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119 } catch(NoSuchMethodException e) { |
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120 throw new RuntimeException(e); |
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121 } |
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122 return writer; |
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123 } |
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124 |
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125 static LuanFunction lines(final BufferedReader in) { |
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126 return new LuanFunction() { |
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127 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
115
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128 try { |
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129 if( args.length > 0 ) { |
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130 if( args.length > 1 || !"close".equals(args[0]) ) |
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131 throw new LuanException( "the only argument allowed is 'close'" ); |
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132 in.close(); |
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133 return null; |
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134 } |
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135 String rtn = in.readLine(); |
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136 if( rtn==null ) |
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137 in.close(); |
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138 return rtn; |
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139 } catch(IOException e) { |
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140 throw new LuanException(e); |
115
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141 } |
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142 } |
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143 }; |
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144 } |
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145 |
116
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146 static LuanFunction blocks(final InputStream in,final int blockSize) { |
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147 return new LuanFunction() { |
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148 final byte[] a = new byte[blockSize]; |
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149 |
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150 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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151 try { |
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152 if( args.length > 0 ) { |
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153 if( args.length > 1 || !"close".equals(args[0]) ) |
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154 throw new LuanException( "the only argument allowed is 'close'" ); |
116
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155 in.close(); |
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156 return null; |
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157 } |
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158 if( in.read(a) == -1 ) { |
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159 in.close(); |
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160 return null; |
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161 } |
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162 return a; |
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163 } catch(IOException e) { |
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164 throw new LuanException(e); |
116
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165 } |
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166 } |
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167 }; |
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168 } |
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169 |
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170 |
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171 private static File objToFile(Object obj) { |
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172 if( obj instanceof String ) { |
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173 return new File((String)obj); |
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174 } |
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175 if( obj instanceof LuanTable ) { |
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176 LuanTable t = (LuanTable)obj; |
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177 Object java = t.rawGet("java"); |
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178 if( java instanceof LuanFile ) { |
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179 LuanFile luanFile = (LuanFile)java; |
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180 return luanFile.file; |
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181 } |
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182 } |
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183 return null; |
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184 } |
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185 |
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186 |
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187 public static abstract class LuanIn { |
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188 public abstract InputStream inputStream() throws IOException, LuanException; |
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189 public abstract String to_string(); |
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191 |
722 | 192 public Reader reader() throws IOException, LuanException { |
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193 return new InputStreamReader(inputStream()); |
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194 } |
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195 |
722 | 196 public String read_text() throws IOException, LuanException { |
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197 Reader in = reader(); |
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198 String s = Utils.readAll(in); |
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199 in.close(); |
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200 return s; |
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201 } |
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202 |
722 | 203 public byte[] read_binary() throws IOException, LuanException { |
125
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204 InputStream in = inputStream(); |
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205 byte[] a = Utils.readAll(in); |
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206 in.close(); |
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207 return a; |
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208 } |
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209 |
722 | 210 public LuanFunction read_lines() throws IOException, LuanException { |
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211 return lines(new BufferedReader(reader())); |
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212 } |
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213 |
722 | 214 public LuanFunction read_blocks(Integer blockSize) throws IOException, LuanException { |
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215 int n = blockSize!=null ? blockSize : Utils.bufSize; |
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216 return blocks(inputStream(),n); |
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217 } |
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218 |
722 | 219 public boolean exists() throws IOException, LuanException { |
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220 try { |
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221 inputStream().close(); |
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222 return true; |
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223 } catch(FileNotFoundException e) { |
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224 return false; |
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225 } |
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226 } |
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227 |
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228 public LuanTable table() { |
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229 LuanTable tbl = new LuanTable(); |
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230 try { |
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231 tbl.rawPut( "java", this ); |
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232 tbl.rawPut( "to_string", new LuanJavaFunction( |
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233 LuanIn.class.getMethod( "to_string" ), this |
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234 ) ); |
705 | 235 tbl.rawPut( "to_uri_string", new LuanJavaFunction( |
236 LuanIn.class.getMethod( "to_uri_string" ), this | |
237 ) ); | |
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238 tbl.rawPut( "read_text", new LuanJavaFunction( |
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239 LuanIn.class.getMethod( "read_text" ), this |
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240 ) ); |
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241 tbl.rawPut( "read_binary", new LuanJavaFunction( |
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242 LuanIn.class.getMethod( "read_binary" ), this |
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243 ) ); |
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244 tbl.rawPut( "read_lines", new LuanJavaFunction( |
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245 LuanIn.class.getMethod( "read_lines" ), this |
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246 ) ); |
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247 tbl.rawPut( "read_blocks", new LuanJavaFunction( |
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248 LuanIn.class.getMethod( "read_blocks", Integer.class ), this |
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249 ) ); |
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250 tbl.rawPut( "exists", new LuanJavaFunction( |
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251 LuanIn.class.getMethod( "exists" ), this |
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252 ) ); |
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253 } catch(NoSuchMethodException e) { |
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254 throw new RuntimeException(e); |
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255 } |
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256 return tbl; |
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257 } |
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258 } |
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259 |
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260 public static final LuanIn defaultStdin = new LuanIn() { |
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261 |
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262 @Override public InputStream inputStream() { |
261
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263 return System.in; |
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264 } |
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265 |
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266 @Override public String to_string() { |
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267 return "<stdin>"; |
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268 } |
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269 |
705 | 270 @Override public String to_uri_string() { |
271 return "stdin:"; | |
272 } | |
273 | |
261
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274 @Override public String read_text() throws IOException { |
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275 return Utils.readAll(new InputStreamReader(System.in)); |
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276 } |
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277 |
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278 @Override public byte[] read_binary() throws IOException { |
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279 return Utils.readAll(System.in); |
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280 } |
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281 |
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282 @Override public boolean exists() { |
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283 return true; |
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284 } |
261
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285 }; |
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286 |
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287 public static abstract class LuanIO extends LuanIn { |
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288 abstract OutputStream outputStream() throws IOException; |
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289 |
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290 public void write(Object obj) throws LuanException, IOException { |
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291 if( obj instanceof String ) { |
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292 String s = (String)obj; |
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293 Writer out = new OutputStreamWriter(outputStream()); |
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294 out.write(s); |
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295 out.close(); |
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296 return; |
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297 } |
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298 if( obj instanceof byte[] ) { |
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299 byte[] a = (byte[])obj; |
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300 OutputStream out = outputStream(); |
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301 Utils.copyAll(new ByteArrayInputStream(a),out); |
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302 out.close(); |
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303 return; |
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304 } |
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305 if( obj instanceof LuanTable ) { |
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306 LuanTable t = (LuanTable)obj; |
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307 Object java = t.rawGet("java"); |
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308 if( java instanceof LuanIn ) { |
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309 LuanIn luanIn = (LuanIn)java; |
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310 InputStream in = luanIn.inputStream(); |
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311 OutputStream out = outputStream(); |
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312 Utils.copyAll(in,out); |
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313 out.close(); |
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314 in.close(); |
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315 return; |
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316 } |
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317 } |
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318 throw new LuanException( "bad argument #1 to 'write' (string or binary or Io.uri expected)" ); |
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319 } |
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320 |
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321 public LuanTable text_writer() throws IOException { |
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322 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream()))); |
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323 } |
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324 |
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325 public LuanTable binary_writer() throws IOException { |
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326 return binaryWriter(new BufferedOutputStream(outputStream())); |
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327 } |
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328 |
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329 @Override public LuanTable table() { |
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330 LuanTable tbl = super.table(); |
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331 try { |
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332 tbl.rawPut( "write", new LuanJavaFunction( |
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333 LuanIO.class.getMethod( "write", Object.class ), this |
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334 ) ); |
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335 tbl.rawPut( "text_writer", new LuanJavaFunction( |
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336 LuanIO.class.getMethod( "text_writer" ), this |
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337 ) ); |
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338 tbl.rawPut( "binary_writer", new LuanJavaFunction( |
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339 LuanIO.class.getMethod( "binary_writer" ), this |
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340 ) ); |
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341 } catch(NoSuchMethodException e) { |
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342 throw new RuntimeException(e); |
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343 } |
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344 return tbl; |
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345 } |
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346 } |
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347 |
590 | 348 private static final LuanIO nullIO = new LuanIO() { |
349 private final InputStream in = new InputStream() { | |
350 @Override public int read() { | |
351 return -1; | |
352 } | |
353 }; | |
354 private final OutputStream out = new OutputStream() { | |
355 @Override public void write(int b) {} | |
356 }; | |
357 | |
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358 @Override public InputStream inputStream() { |
590 | 359 return in; |
360 } | |
361 | |
362 @Override OutputStream outputStream() { | |
363 return out; | |
364 } | |
365 | |
366 @Override public String to_string() { | |
367 return "<null>"; | |
368 } | |
369 | |
705 | 370 @Override public String to_uri_string() { |
371 return "null:"; | |
372 } | |
373 | |
590 | 374 }; |
375 | |
421
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376 public static final class LuanString extends LuanIO { |
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377 private String s; |
314
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378 |
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379 private LuanString(String s) { |
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380 this.s = s; |
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381 } |
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382 |
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383 @Override public InputStream inputStream() { |
421
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384 throw new UnsupportedOperationException(); |
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385 } |
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386 |
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387 @Override OutputStream outputStream() { |
314
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388 throw new UnsupportedOperationException(); |
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389 } |
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390 |
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391 @Override public String to_string() { |
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392 return "<string>"; |
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393 } |
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394 |
705 | 395 @Override public String to_uri_string() { |
396 return "string:" + s; | |
397 } | |
398 | |
314
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399 @Override public Reader reader() { |
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400 return new StringReader(s); |
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401 } |
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402 |
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403 @Override public String read_text() { |
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404 return s; |
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405 } |
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406 |
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407 @Override public boolean exists() { |
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408 return true; |
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409 } |
421
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410 |
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411 @Override public LuanTable text_writer() throws IOException { |
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412 LuanWriter luanWriter = new LuanWriter() { |
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413 private final Writer out = new StringWriter(); |
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414 |
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415 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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416 for( Object obj : args ) { |
575
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417 out.write( luan.toString(obj) ); |
421
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418 } |
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419 } |
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420 |
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421 public void close() throws IOException { |
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422 s = out.toString(); |
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423 } |
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424 }; |
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425 return writer(luanWriter); |
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426 } |
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427 } |
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428 |
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429 public static final class LuanFile extends LuanIO { |
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430 public final File file; |
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431 |
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432 private LuanFile(LuanState luan,File file) throws LuanException { |
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433 this(file); |
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434 check(luan,"file:"+file.toString()); |
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435 } |
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436 |
202
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437 private LuanFile(File file) { |
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438 this.file = file; |
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439 } |
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440 |
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441 @Override public InputStream inputStream() throws IOException { |
125
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442 return new FileInputStream(file); |
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443 } |
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444 |
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445 @Override OutputStream outputStream() throws IOException { |
125
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446 return new FileOutputStream(file); |
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447 } |
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448 |
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449 @Override public String to_string() { |
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450 return file.toString(); |
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451 } |
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452 |
705 | 453 @Override public String to_uri_string() { |
454 return "file:" + file.toString(); | |
455 } | |
456 | |
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457 public LuanTable child(LuanState luan,String name) throws LuanException { |
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458 return new LuanFile(luan,new File(file,name)).table(); |
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459 } |
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460 |
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461 public LuanTable children(LuanState luan) throws LuanException { |
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462 File[] files = file.listFiles(); |
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463 if( files==null ) |
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464 return null; |
411
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465 LuanTable list = new LuanTable(); |
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466 for( File f : files ) { |
432
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467 list.rawPut(list.rawLength()+1,new LuanFile(luan,f).table()); |
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468 } |
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469 return list; |
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470 } |
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471 |
323
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472 public LuanTable parent(LuanState luan) throws LuanException, IOException { |
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473 File parent = file.getParentFile(); |
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474 if( parent==null ) |
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475 parent = file.getCanonicalFile().getParentFile(); |
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476 return new LuanFile(luan,parent).table(); |
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477 } |
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478 |
265
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479 @Override public boolean exists() { |
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480 return file.exists(); |
145
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481 } |
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482 |
758
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483 public void rename_to(Object destObj) throws LuanException { |
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484 File dest = objToFile(destObj); |
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485 if( dest==null ) |
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486 throw new LuanException( "bad argument #1 to 'objToFile' (string or file table expected)" ); |
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487 if( !file.renameTo(dest) ) |
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488 throw new LuanException("couldn't rename file "+file+" to "+dest); |
293
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489 } |
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490 |
310
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491 public LuanTable canonical(LuanState luan) throws LuanException, IOException { |
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492 return new LuanFile(luan,file.getCanonicalFile()).table(); |
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493 } |
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494 |
749
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495 public LuanTable create_temp_file(LuanState luan,String prefix,String suffix) throws LuanException, IOException { |
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496 File tmp = File.createTempFile(prefix,suffix,file); |
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497 tmp.deleteOnExit(); |
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498 return new LuanFile(luan,tmp).table(); |
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499 } |
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500 |
751
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501 public void delete() throws LuanException { |
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502 if( file.exists() ) |
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503 delete(file); |
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504 } |
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505 |
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506 private static void delete(File file) throws LuanException { |
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507 File[] children = file.listFiles(); |
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508 if( children != null ) { |
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509 for( File child : children ) { |
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510 delete(child); |
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511 } |
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512 } |
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513 if( !file.delete() ) |
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514 throw new LuanException("couldn't delete file "+file); |
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515 } |
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516 |
752 | 517 public void mkdir() throws LuanException { |
518 if( !file.isDirectory() ) { | |
519 if( !file.mkdirs() ) | |
520 throw new LuanException("couldn't make directory "+file); | |
521 } | |
522 } | |
523 | |
297
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524 @Override public LuanTable table() { |
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525 LuanTable tbl = super.table(); |
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526 try { |
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527 tbl.rawPut( "name", new LuanJavaFunction( |
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528 File.class.getMethod( "getName" ), file |
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529 ) ); |
427
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530 tbl.rawPut( "is_directory", new LuanJavaFunction( |
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531 File.class.getMethod( "isDirectory" ), file |
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532 ) ); |
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533 tbl.rawPut( "is_file", new LuanJavaFunction( |
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534 File.class.getMethod( "isFile" ), file |
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535 ) ); |
427
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536 tbl.rawPut( "delete", new LuanJavaFunction( |
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537 LuanFile.class.getMethod( "delete" ), this |
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538 ) ); |
427
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539 tbl.rawPut( "mkdir", new LuanJavaFunction( |
752 | 540 LuanFile.class.getMethod( "mkdir" ), this |
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541 ) ); |
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542 tbl.rawPut( "last_modified", new LuanJavaFunction( |
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543 File.class.getMethod( "lastModified" ), file |
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544 ) ); |
759
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545 tbl.rawPut( "length", new LuanJavaFunction( |
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546 File.class.getMethod( "length" ), file |
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547 ) ); |
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548 tbl.rawPut( "child", new LuanJavaFunction( |
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549 LuanFile.class.getMethod( "child", LuanState.class, String.class ), this |
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550 ) ); |
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551 tbl.rawPut( "children", new LuanJavaFunction( |
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552 LuanFile.class.getMethod( "children", LuanState.class ), this |
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553 ) ); |
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554 tbl.rawPut( "parent", new LuanJavaFunction( |
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555 LuanFile.class.getMethod( "parent", LuanState.class ), this |
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556 ) ); |
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557 tbl.rawPut( "rename_to", new LuanJavaFunction( |
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558 LuanFile.class.getMethod( "rename_to", Object.class ), this |
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559 ) ); |
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560 tbl.rawPut( "canonical", new LuanJavaFunction( |
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561 LuanFile.class.getMethod( "canonical", LuanState.class ), this |
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562 ) ); |
749
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563 tbl.rawPut( "create_temp_file", new LuanJavaFunction( |
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564 LuanFile.class.getMethod( "create_temp_file", LuanState.class, String.class, String.class ), this |
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565 ) ); |
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566 } catch(NoSuchMethodException e) { |
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567 throw new RuntimeException(e); |
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568 } |
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569 return tbl; |
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570 } |
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571 } |
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572 |
590 | 573 public static LuanTable null_() { |
574 return nullIO.table(); | |
575 } | |
576 | |
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577 public static LuanTable string(String s) throws LuanException { |
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578 Utils.checkNotNull(s); |
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579 return new LuanString(s).table(); |
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580 } |
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581 |
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582 public static LuanTable file(LuanState luan,String name) throws LuanException { |
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583 File file = new File(name); |
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584 return new LuanFile(file).table(); |
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585 } |
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586 |
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587 public static LuanTable classpath(LuanState luan,String name) throws LuanException { |
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588 if( name.contains("//") ) |
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589 return null; |
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590 String path = name; |
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591 check(luan,"classpath:"+path); |
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592 URL url; |
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593 if( !path.contains("#") ) { |
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594 url = ClassLoader.getSystemResource(path); |
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595 } else { |
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596 String[] a = path.split("#"); |
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597 url = ClassLoader.getSystemResource(a[0]); |
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598 if( url==null ) { |
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599 for( int i=1; i<a.length; i++ ) { |
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600 url = ClassLoader.getSystemResource(a[0]+"/"+a[i]); |
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601 if( url != null ) { |
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602 try { |
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603 url = new URL(url,"."); |
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604 } catch(MalformedURLException e) { |
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605 throw new RuntimeException(e); |
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606 } |
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607 break; |
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608 } |
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609 } |
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610 } |
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611 } |
264
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612 if( url != null ) |
722 | 613 return new LuanUrl(luan,url,null).table(); |
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614 |
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615 return null; |
260
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616 } |
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617 |
722 | 618 private static LuanTable url(LuanState luan,String url,LuanTable options) throws IOException, LuanException { |
619 return new LuanUrl(luan,new URL(url),options).table(); | |
263
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620 } |
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621 |
722 | 622 public static LuanTable http(LuanState luan,String path,LuanTable options) throws IOException, LuanException { |
623 return url(luan,"http:"+path,options); | |
263
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624 } |
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625 |
722 | 626 public static LuanTable https(LuanState luan,String path,LuanTable options) throws IOException, LuanException { |
627 return url(luan,"https:"+path,options); | |
264
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628 } |
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629 |
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630 public static LuanTable luan(LuanState luan,String path) throws LuanException { |
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631 return classpath( luan, "luan/modules/" + path ); |
263
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632 } |
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633 |
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634 public static LuanTable stdin(LuanState luan) throws LuanException { |
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635 LuanTable io = (LuanTable)PackageLuan.require(luan,"luan:Io.luan"); |
575
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636 return (LuanTable)io.get(luan,"stdin"); |
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637 } |
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638 |
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639 public static LuanTable newSchemes() { |
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640 LuanTable schemes = new LuanTable(); |
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641 try { |
590 | 642 schemes.rawPut( "null", new LuanJavaFunction(IoLuan.class.getMethod("null_"),null) ); |
646
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643 add( schemes, "string", String.class ); |
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644 add( schemes, "file", LuanState.class, String.class ); |
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645 add( schemes, "classpath", LuanState.class, String.class ); |
646
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646 add( schemes, "socket", String.class ); |
722 | 647 add( schemes, "http", LuanState.class, String.class, LuanTable.class ); |
648 add( schemes, "https", LuanState.class, String.class, LuanTable.class ); | |
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649 add( schemes, "luan", LuanState.class, String.class ); |
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650 add( schemes, "stdin", LuanState.class ); |
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651 add( schemes, "os", LuanState.class, String.class, LuanTable.class ); |
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652 } catch(NoSuchMethodException e) { |
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653 throw new RuntimeException(e); |
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654 } |
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655 return schemes; |
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656 } |
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657 |
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658 private static LuanTable schemes(LuanState luan) throws LuanException { |
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659 LuanTable t = (LuanTable)PackageLuan.loaded(luan).rawGet("luan:Io.luan"); |
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660 if( t == null ) |
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661 return newSchemes(); |
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662 t = (LuanTable)t.get(luan,"schemes"); |
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663 if( t == null ) |
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664 return newSchemes(); |
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665 return t; |
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666 } |
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667 |
722 | 668 public static LuanTable uri(LuanState luan,String name,LuanTable options) throws LuanException { |
260
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669 int i = name.indexOf(':'); |
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670 if( i == -1 ) |
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671 throw new LuanException( "invalid Io.uri name '"+name+"', missing scheme" ); |
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672 String scheme = name.substring(0,i); |
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673 String location = name.substring(i+1); |
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674 LuanTable schemes = schemes(luan); |
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675 LuanFunction opener = (LuanFunction)schemes.get(luan,scheme); |
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676 if( opener == null ) |
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677 throw new LuanException( "invalid scheme '"+scheme+"' in '"+name+"'" ); |
722 | 678 return (LuanTable)Luan.first(opener.call(luan,new Object[]{location,options})); |
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679 } |
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680 |
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681 public static final class LuanSocket extends LuanIO { |
744 | 682 public final Socket socket; |
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683 |
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684 private LuanSocket(String host,int port) throws LuanException { |
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685 try { |
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686 this.socket = new Socket(host,port); |
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687 } catch(IOException e) { |
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688 throw new LuanException(e.toString()); |
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689 } |
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690 } |
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691 |
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692 private LuanSocket(Socket socket) { |
125
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693 this.socket = socket; |
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694 } |
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695 |
725
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696 @Override public InputStream inputStream() throws IOException { |
125
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697 return socket.getInputStream(); |
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698 } |
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699 |
144
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700 @Override OutputStream outputStream() throws IOException { |
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701 return socket.getOutputStream(); |
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702 } |
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703 |
147
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704 @Override public String to_string() { |
143
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705 return socket.toString(); |
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706 } |
705 | 707 |
708 @Override public String to_uri_string() { | |
709 throw new UnsupportedOperationException(); | |
710 } | |
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711 } |
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712 |
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713 public static LuanTable socket(String name) throws LuanException, IOException { |
262
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714 int i = name.indexOf(':'); |
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715 if( i == -1 ) |
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716 throw new LuanException( "invalid socket '"+name+"', format is: <host>:<port>" ); |
262
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717 String host = name.substring(0,i); |
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718 String portStr = name.substring(i+1); |
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719 int port = Integer.parseInt(portStr); |
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720 return new LuanSocket(host,port).table(); |
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721 } |
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722 |
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723 public static LuanFunction socket_server(int port) throws IOException { |
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724 final ServerSocket ss = new ServerSocket(port); |
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725 return new LuanFunction() { |
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726 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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727 try { |
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728 if( args.length > 0 ) { |
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729 if( args.length > 1 || !"close".equals(args[0]) ) |
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730 throw new LuanException( "the only argument allowed is 'close'" ); |
125
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731 ss.close(); |
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732 return null; |
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733 } |
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734 return new LuanSocket(ss.accept()).table(); |
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735 } catch(IOException e) { |
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736 throw new LuanException(e); |
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737 } |
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738 } |
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739 }; |
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740 } |
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741 |
203
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742 |
734 | 743 public static final class LuanOs extends LuanIO { |
761
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744 private final String cmd; |
734 | 745 private final Process proc; |
746 | |
761
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747 private LuanOs(LuanState luan,String cmd,LuanTable options) throws IOException, LuanException { |
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748 this.cmd = cmd; |
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749 File dir = null; |
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750 if( options != null ) { |
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751 Map map = options.asMap(luan); |
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752 Object obj = map.remove("dir"); |
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753 dir = objToFile(obj); |
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754 if( dir==null ) |
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755 throw new LuanException( "bad option 'dir' (string or file table expected)" ); |
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756 if( !map.isEmpty() ) |
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757 throw new LuanException( "unrecognized options: "+map ); |
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758 } |
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759 this.proc = Runtime.getRuntime().exec(cmd,null,dir); |
734 | 760 } |
761 | |
762 @Override public InputStream inputStream() throws IOException { | |
763 return proc.getInputStream(); | |
764 } | |
765 | |
766 @Override OutputStream outputStream() throws IOException { | |
767 return proc.getOutputStream(); | |
768 } | |
769 | |
770 @Override public String to_string() { | |
771 return proc.toString(); | |
772 } | |
773 | |
774 @Override public String to_uri_string() { | |
775 throw new UnsupportedOperationException(); | |
776 } | |
777 | |
778 @Override public boolean exists() { | |
779 return true; | |
780 } | |
781 | |
782 public void wait_for() | |
783 throws IOException, LuanException | |
784 { | |
785 try { | |
786 proc.waitFor(); | |
787 } catch(InterruptedException e) { | |
788 throw new RuntimeException(e); | |
789 } | |
790 int exitVal = proc.exitValue(); | |
791 if( exitVal != 0 ) { | |
792 Reader err = new InputStreamReader(proc.getErrorStream()); | |
761
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793 String error = "error in: "+cmd+"\n"+Utils.readAll(err); |
734 | 794 err.close(); |
795 throw new LuanException(error); | |
796 } | |
797 } | |
798 | |
799 @Override public String read_text() throws IOException, LuanException { | |
800 String s = super.read_text(); | |
801 wait_for(); | |
802 return s; | |
803 } | |
804 | |
805 @Override public LuanTable table() { | |
806 LuanTable tbl = super.table(); | |
807 try { | |
808 tbl.rawPut( "wait_for", new LuanJavaFunction( | |
809 LuanOs.class.getMethod( "wait_for" ), this | |
810 ) ); | |
811 } catch(NoSuchMethodException e) { | |
812 throw new RuntimeException(e); | |
813 } | |
814 return tbl; | |
815 } | |
816 } | |
817 | |
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818 public static LuanTable os(LuanState luan,String cmd,LuanTable options) throws IOException, LuanException { |
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819 return new LuanOs(luan,cmd,options).table(); |
734 | 820 } |
821 | |
822 | |
701 | 823 public static String ip(String domain) { |
824 try { | |
825 return InetAddress.getByName(domain).getHostAddress(); | |
826 } catch(UnknownHostException e) { | |
827 return null; | |
828 } | |
829 } | |
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830 /* |
735 | 831 public static LuanTable my_ips() throws IOException { |
832 LuanTable tbl = new LuanTable(); | |
833 for( Enumeration<NetworkInterface> e1 = NetworkInterface.getNetworkInterfaces(); e1.hasMoreElements(); ) { | |
834 NetworkInterface ni = e1.nextElement(); | |
835 for( Enumeration<InetAddress> e2 = ni.getInetAddresses(); e2.hasMoreElements(); ) { | |
836 InetAddress ia = e2.nextElement(); | |
837 if( ia instanceof Inet4Address ) | |
838 tbl.rawPut(ia.getHostAddress(),true); | |
839 } | |
840 } | |
841 return tbl; | |
842 } | |
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843 */ |
746 | 844 /* |
706 | 845 // files maps zip name to uri |
846 public static void zip(LuanState luan,String zipUri,LuanTable files) throws LuanException, IOException { | |
722 | 847 Object obj = uri(luan,zipUri,null).rawGet("java"); |
706 | 848 if( !(obj instanceof LuanIO) ) |
849 throw new LuanException("invalid uri for zip"); | |
850 LuanIO zipIo = (LuanIO)obj; | |
851 ZipOutputStream out = new ZipOutputStream(zipIo.outputStream()); | |
852 for( Map.Entry<Object,Object> entry : files.iterable(luan) ) { | |
853 obj = entry.getKey(); | |
854 if( !(obj instanceof String) ) | |
855 throw new LuanException("zip file table keys must be strings"); | |
856 String fileName = (String)obj; | |
857 obj = entry.getValue(); | |
858 if( !(obj instanceof String) ) | |
859 throw new LuanException("zip file table values must be strings"); | |
860 String uriStr = (String)obj; | |
861 out.putNextEntry(new ZipEntry(fileName)); | |
722 | 862 obj = uri(luan,uriStr,null).rawGet("java"); |
706 | 863 if( !(obj instanceof LuanIn) ) |
864 throw new LuanException("invalid uri for zip"); | |
865 LuanIn zipIn = (LuanIn)obj; | |
866 InputStream in = zipIn.inputStream(); | |
867 Utils.copyAll(in,out); | |
868 in.close(); | |
869 out.closeEntry(); | |
870 } | |
871 out.close(); | |
872 } | |
746 | 873 */ |
706 | 874 |
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875 // security |
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876 |
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877 public interface Security { |
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878 public void check(LuanState luan,String name) throws LuanException; |
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879 } |
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880 |
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881 private static String SECURITY_KEY = "Io.Security"; |
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882 |
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883 private static void check(LuanState luan,String name) throws LuanException { |
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884 Security s = (Security)luan.registry().get(SECURITY_KEY); |
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885 if( s!=null ) |
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886 s.check(luan,name); |
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887 } |
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888 |
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889 public static void setSecurity(LuanState luan,Security s) { |
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890 luan.registry().put(SECURITY_KEY,s); |
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891 } |
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892 |
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893 private void IoLuan() {} // never |
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894 } |