Mercurial Hosting > luan
annotate core/src/luan/modules/IoLuan.java @ 706:30c87c859277
add Io.zip
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Tue, 17 May 2016 19:00:25 -0600 |
parents | 52ecb629a634 |
children | 63cda9eec9a0 |
rev | line source |
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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; |
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28 import java.net.MalformedURLException; |
701 | 29 import java.net.UnknownHostException; |
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30 import java.util.List; |
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31 import java.util.ArrayList; |
706 | 32 import java.util.Map; |
33 import java.util.zip.ZipOutputStream; | |
34 import java.util.zip.ZipEntry; | |
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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 |
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42 |
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43 public final class IoLuan { |
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44 |
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45 private static void add(LuanTable t,String method,Class... parameterTypes) throws NoSuchMethodException { |
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46 t.rawPut( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) ); |
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47 } |
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48 |
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49 public static String read_console_line(String prompt) throws IOException { |
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50 if( prompt==null ) |
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51 prompt = "> "; |
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52 return System.console().readLine(prompt); |
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53 } |
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54 |
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55 |
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56 public interface LuanWriter { |
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57 public void write(LuanState luan,Object... args) throws LuanException, IOException; |
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58 public void close() throws IOException; |
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59 } |
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60 |
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61 public static LuanTable textWriter(final PrintStream out) { |
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62 LuanWriter luanWriter = new LuanWriter() { |
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63 |
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64 public void write(LuanState luan,Object... args) throws LuanException { |
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65 for( Object obj : args ) { |
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66 out.print( luan.toString(obj) ); |
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67 } |
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68 } |
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69 |
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70 public void close() { |
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71 out.close(); |
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72 } |
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73 }; |
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74 return writer(luanWriter); |
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75 } |
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76 |
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77 public static LuanTable textWriter(final Writer out) { |
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78 LuanWriter luanWriter = new LuanWriter() { |
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79 |
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80 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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81 for( Object obj : args ) { |
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82 out.write( luan.toString(obj) ); |
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83 } |
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84 } |
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85 |
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86 public void close() throws IOException { |
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87 out.close(); |
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88 } |
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89 }; |
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90 return writer(luanWriter); |
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91 } |
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92 |
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93 private static LuanTable writer(LuanWriter luanWriter) { |
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94 LuanTable writer = new LuanTable(); |
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95 try { |
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96 writer.rawPut( "write", new LuanJavaFunction( |
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97 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter |
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98 ) ); |
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99 writer.rawPut( "close", new LuanJavaFunction( |
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100 LuanWriter.class.getMethod( "close" ), luanWriter |
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101 ) ); |
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102 } catch(NoSuchMethodException e) { |
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103 throw new RuntimeException(e); |
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104 } |
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105 return writer; |
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106 } |
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107 |
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108 |
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109 public static LuanTable binaryWriter(final OutputStream out) { |
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110 LuanTable writer = new LuanTable(); |
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111 try { |
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112 writer.rawPut( "write", new LuanJavaFunction( |
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113 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out |
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114 ) ); |
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116 OutputStream.class.getMethod( "close" ), out |
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117 ) ); |
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118 } catch(NoSuchMethodException e) { |
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119 throw new RuntimeException(e); |
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120 } |
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121 return writer; |
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122 } |
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123 |
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124 static LuanFunction lines(final BufferedReader in) { |
115
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125 return new LuanFunction() { |
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126 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
115
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127 try { |
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128 if( args.length > 0 ) { |
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129 if( args.length > 1 || !"close".equals(args[0]) ) |
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130 throw new LuanException( "the only argument allowed is 'close'" ); |
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131 in.close(); |
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132 return null; |
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133 } |
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134 String rtn = in.readLine(); |
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135 if( rtn==null ) |
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136 in.close(); |
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137 return rtn; |
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138 } catch(IOException e) { |
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139 throw new LuanException(e); |
115
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140 } |
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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 static LuanFunction blocks(final InputStream in,final int blockSize) { |
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146 return new LuanFunction() { |
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147 final byte[] a = new byte[blockSize]; |
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148 |
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149 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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150 try { |
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151 if( args.length > 0 ) { |
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152 if( args.length > 1 || !"close".equals(args[0]) ) |
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153 throw new LuanException( "the only argument allowed is 'close'" ); |
116
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154 in.close(); |
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155 return null; |
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156 } |
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157 if( in.read(a) == -1 ) { |
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158 in.close(); |
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159 return null; |
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160 } |
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161 return a; |
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162 } catch(IOException e) { |
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163 throw new LuanException(e); |
116
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164 } |
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165 } |
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166 }; |
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167 } |
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168 |
125
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169 |
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170 |
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171 public static abstract class LuanIn { |
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172 abstract InputStream inputStream() throws IOException; |
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173 public abstract String to_string(); |
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175 |
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176 public Reader reader() throws IOException { |
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177 return new InputStreamReader(inputStream()); |
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178 } |
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179 |
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180 public String read_text() throws IOException { |
314
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181 Reader in = reader(); |
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182 String s = Utils.readAll(in); |
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183 in.close(); |
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184 return s; |
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185 } |
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186 |
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187 public byte[] read_binary() throws IOException { |
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188 InputStream in = inputStream(); |
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189 byte[] a = Utils.readAll(in); |
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190 in.close(); |
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191 return a; |
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192 } |
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193 |
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194 public LuanFunction read_lines() throws IOException { |
314
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195 return lines(new BufferedReader(reader())); |
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196 } |
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197 |
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198 public LuanFunction read_blocks(Integer blockSize) throws IOException { |
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199 int n = blockSize!=null ? blockSize : Utils.bufSize; |
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200 return blocks(inputStream(),n); |
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201 } |
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202 |
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203 public boolean exists() throws IOException { |
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204 try { |
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205 inputStream().close(); |
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206 return true; |
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207 } catch(FileNotFoundException e) { |
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208 return false; |
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209 } |
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210 } |
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211 |
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212 public LuanTable table() { |
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213 LuanTable tbl = new LuanTable(); |
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214 try { |
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215 tbl.rawPut( "java", this ); |
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216 tbl.rawPut( "to_string", new LuanJavaFunction( |
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217 LuanIn.class.getMethod( "to_string" ), this |
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218 ) ); |
705 | 219 tbl.rawPut( "to_uri_string", new LuanJavaFunction( |
220 LuanIn.class.getMethod( "to_uri_string" ), this | |
221 ) ); | |
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222 tbl.rawPut( "read_text", new LuanJavaFunction( |
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223 LuanIn.class.getMethod( "read_text" ), this |
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224 ) ); |
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225 tbl.rawPut( "read_binary", new LuanJavaFunction( |
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226 LuanIn.class.getMethod( "read_binary" ), this |
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227 ) ); |
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228 tbl.rawPut( "read_lines", new LuanJavaFunction( |
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229 LuanIn.class.getMethod( "read_lines" ), this |
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230 ) ); |
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231 tbl.rawPut( "read_blocks", new LuanJavaFunction( |
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232 LuanIn.class.getMethod( "read_blocks", Integer.class ), this |
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233 ) ); |
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234 tbl.rawPut( "exists", new LuanJavaFunction( |
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235 LuanIn.class.getMethod( "exists" ), this |
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236 ) ); |
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237 } catch(NoSuchMethodException e) { |
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238 throw new RuntimeException(e); |
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239 } |
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240 return tbl; |
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241 } |
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242 } |
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243 |
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244 public static final LuanIn defaultStdin = new LuanIn() { |
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245 |
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246 @Override InputStream inputStream() { |
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247 return System.in; |
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248 } |
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249 |
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250 @Override public String to_string() { |
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251 return "<stdin>"; |
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252 } |
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253 |
705 | 254 @Override public String to_uri_string() { |
255 return "stdin:"; | |
256 } | |
257 | |
261
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258 @Override public String read_text() throws IOException { |
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259 return Utils.readAll(new InputStreamReader(System.in)); |
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260 } |
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261 |
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262 @Override public byte[] read_binary() throws IOException { |
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263 return Utils.readAll(System.in); |
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264 } |
265
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265 |
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266 @Override public boolean exists() { |
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267 return true; |
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268 } |
261
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269 }; |
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270 |
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271 public static abstract class LuanIO extends LuanIn { |
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272 abstract OutputStream outputStream() throws IOException; |
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273 |
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274 public void write(Object obj) throws LuanException, IOException { |
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275 if( obj instanceof String ) { |
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276 String s = (String)obj; |
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277 Writer out = new OutputStreamWriter(outputStream()); |
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278 out.write(s); |
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279 out.close(); |
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280 return; |
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281 } |
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282 if( obj instanceof byte[] ) { |
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283 byte[] a = (byte[])obj; |
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284 OutputStream out = outputStream(); |
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285 Utils.copyAll(new ByteArrayInputStream(a),out); |
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286 out.close(); |
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287 return; |
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288 } |
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289 throw new LuanException( "bad argument #1 to 'write' (string or binary expected)" ); |
125
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290 } |
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291 |
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292 public LuanTable text_writer() throws IOException { |
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293 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream()))); |
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294 } |
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295 |
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296 public LuanTable binary_writer() throws IOException { |
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297 return binaryWriter(new BufferedOutputStream(outputStream())); |
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298 } |
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299 |
297
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300 @Override public LuanTable table() { |
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301 LuanTable tbl = super.table(); |
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302 try { |
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303 tbl.rawPut( "write", new LuanJavaFunction( |
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304 LuanIO.class.getMethod( "write", Object.class ), this |
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305 ) ); |
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306 tbl.rawPut( "text_writer", new LuanJavaFunction( |
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307 LuanIO.class.getMethod( "text_writer" ), this |
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308 ) ); |
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309 tbl.rawPut( "binary_writer", new LuanJavaFunction( |
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310 LuanIO.class.getMethod( "binary_writer" ), this |
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311 ) ); |
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312 } catch(NoSuchMethodException e) { |
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313 throw new RuntimeException(e); |
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314 } |
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315 return tbl; |
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316 } |
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317 } |
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318 |
590 | 319 private static final LuanIO nullIO = new LuanIO() { |
320 private final InputStream in = new InputStream() { | |
321 @Override public int read() { | |
322 return -1; | |
323 } | |
324 }; | |
325 private final OutputStream out = new OutputStream() { | |
326 @Override public void write(int b) {} | |
327 }; | |
328 | |
329 @Override InputStream inputStream() { | |
330 return in; | |
331 } | |
332 | |
333 @Override OutputStream outputStream() { | |
334 return out; | |
335 } | |
336 | |
337 @Override public String to_string() { | |
338 return "<null>"; | |
339 } | |
340 | |
705 | 341 @Override public String to_uri_string() { |
342 return "null:"; | |
343 } | |
344 | |
590 | 345 }; |
346 | |
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347 public static final class LuanString extends LuanIO { |
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348 private String s; |
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349 |
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350 private LuanString(String s) { |
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351 this.s = s; |
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352 } |
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353 |
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354 @Override InputStream inputStream() { |
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355 throw new UnsupportedOperationException(); |
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356 } |
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357 |
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358 @Override OutputStream outputStream() { |
314
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359 throw new UnsupportedOperationException(); |
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360 } |
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361 |
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362 @Override public String to_string() { |
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363 return "<string>"; |
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364 } |
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365 |
705 | 366 @Override public String to_uri_string() { |
367 return "string:" + s; | |
368 } | |
369 | |
314
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370 @Override public Reader reader() { |
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371 return new StringReader(s); |
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372 } |
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373 |
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374 @Override public String read_text() { |
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375 return s; |
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376 } |
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377 |
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378 @Override public boolean exists() { |
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379 return true; |
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380 } |
421
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381 |
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382 @Override public LuanTable text_writer() throws IOException { |
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383 LuanWriter luanWriter = new LuanWriter() { |
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384 private final Writer out = new StringWriter(); |
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385 |
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386 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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387 for( Object obj : args ) { |
575
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388 out.write( luan.toString(obj) ); |
421
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389 } |
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390 } |
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391 |
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392 public void close() throws IOException { |
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393 s = out.toString(); |
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394 } |
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395 }; |
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396 return writer(luanWriter); |
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397 } |
314
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398 } |
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399 |
125
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400 public static final class LuanUrl extends LuanIn { |
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401 private final URL url; |
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402 |
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403 private LuanUrl(URL url) { |
203
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404 this.url = url; |
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405 } |
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406 |
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407 @Override InputStream inputStream() throws IOException { |
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408 return url.openStream(); |
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409 } |
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410 |
147
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411 @Override public String to_string() { |
143
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412 return url.toString(); |
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413 } |
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414 |
705 | 415 @Override public String to_uri_string() { |
416 return url.toString(); | |
417 } | |
418 | |
283
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419 public String post(String postS) throws IOException { |
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420 return new UrlCall(url).post(postS); |
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421 } |
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422 |
297
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423 @Override public LuanTable table() { |
283
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424 LuanTable tbl = super.table(); |
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425 try { |
427
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426 tbl.rawPut( "post", new LuanJavaFunction( |
283
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427 LuanUrl.class.getMethod( "post", String.class ), this |
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428 ) ); |
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429 } catch(NoSuchMethodException e) { |
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430 throw new RuntimeException(e); |
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431 } |
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432 return tbl; |
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433 } |
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434 } |
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435 |
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436 public static final class LuanFile extends LuanIO { |
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437 private final File file; |
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438 |
203
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439 private LuanFile(LuanState luan,File file) throws LuanException { |
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440 this(file); |
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441 check(luan,"file:"+file.toString()); |
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442 } |
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443 |
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444 private LuanFile(File file) { |
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445 this.file = file; |
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446 } |
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447 |
144
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448 @Override InputStream inputStream() throws IOException { |
125
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449 return new FileInputStream(file); |
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450 } |
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451 |
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452 @Override OutputStream outputStream() throws IOException { |
125
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453 return new FileOutputStream(file); |
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454 } |
143
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455 |
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456 @Override public String to_string() { |
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457 return file.toString(); |
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458 } |
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459 |
705 | 460 @Override public String to_uri_string() { |
461 return "file:" + file.toString(); | |
462 } | |
463 | |
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464 public LuanTable child(LuanState luan,String name) throws LuanException { |
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465 return new LuanFile(luan,new File(file,name)).table(); |
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466 } |
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467 |
203
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468 public LuanTable children(LuanState luan) throws LuanException { |
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469 File[] files = file.listFiles(); |
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470 if( files==null ) |
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471 return null; |
411
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472 LuanTable list = new LuanTable(); |
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473 for( File f : files ) { |
432
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474 list.rawPut(list.rawLength()+1,new LuanFile(luan,f).table()); |
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475 } |
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476 return list; |
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477 } |
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478 |
323
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479 public LuanTable parent(LuanState luan) throws LuanException, IOException { |
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480 File parent = file.getParentFile(); |
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481 if( parent==null ) |
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482 parent = file.getCanonicalFile().getParentFile(); |
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483 return new LuanFile(luan,parent).table(); |
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484 } |
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485 |
265
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486 @Override public boolean exists() { |
237
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487 return file.exists(); |
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488 } |
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489 |
293
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490 public boolean rename_to(String dest) { |
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491 return file.renameTo(new File(dest)); |
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492 } |
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493 |
310
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494 public LuanTable canonical(LuanState luan) throws LuanException, IOException { |
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495 return new LuanFile(luan,file.getCanonicalFile()).table(); |
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496 } |
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497 |
297
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remove PackageLuan.load_lib()
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498 @Override public LuanTable table() { |
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499 LuanTable tbl = super.table(); |
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500 try { |
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501 tbl.rawPut( "name", new LuanJavaFunction( |
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502 File.class.getMethod( "getName" ), file |
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503 ) ); |
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504 tbl.rawPut( "is_directory", new LuanJavaFunction( |
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505 File.class.getMethod( "isDirectory" ), file |
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506 ) ); |
427
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507 tbl.rawPut( "is_file", new LuanJavaFunction( |
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508 File.class.getMethod( "isFile" ), file |
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509 ) ); |
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510 tbl.rawPut( "delete", new LuanJavaFunction( |
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511 File.class.getMethod( "delete" ), file |
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512 ) ); |
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513 tbl.rawPut( "mkdir", new LuanJavaFunction( |
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514 File.class.getMethod( "mkdir" ), file |
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515 ) ); |
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516 tbl.rawPut( "mkdirs", new LuanJavaFunction( |
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517 File.class.getMethod( "mkdirs" ), file |
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518 ) ); |
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519 tbl.rawPut( "last_modified", new LuanJavaFunction( |
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520 File.class.getMethod( "lastModified" ), file |
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521 ) ); |
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522 tbl.rawPut( "child", new LuanJavaFunction( |
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523 LuanFile.class.getMethod( "child", LuanState.class, String.class ), this |
164
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524 ) ); |
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525 tbl.rawPut( "children", new LuanJavaFunction( |
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526 LuanFile.class.getMethod( "children", LuanState.class ), this |
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527 ) ); |
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528 tbl.rawPut( "parent", new LuanJavaFunction( |
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529 LuanFile.class.getMethod( "parent", LuanState.class ), this |
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530 ) ); |
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531 tbl.rawPut( "rename_to", new LuanJavaFunction( |
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532 LuanFile.class.getMethod( "rename_to", String.class ), this |
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533 ) ); |
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534 tbl.rawPut( "canonical", new LuanJavaFunction( |
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535 LuanFile.class.getMethod( "canonical", LuanState.class ), this |
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536 ) ); |
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537 } catch(NoSuchMethodException e) { |
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538 throw new RuntimeException(e); |
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539 } |
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540 return tbl; |
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541 } |
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542 } |
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543 |
590 | 544 public static LuanTable null_() { |
545 return nullIO.table(); | |
546 } | |
547 | |
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548 public static LuanTable string(String s) throws LuanException { |
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549 Utils.checkNotNull(s); |
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550 return new LuanString(s).table(); |
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551 } |
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552 |
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553 public static LuanTable file(LuanState luan,String name) throws LuanException { |
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554 File file = new File(name); |
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555 return new LuanFile(file).table(); |
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556 } |
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557 |
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558 public static LuanTable classpath(LuanState luan,String name) throws LuanException { |
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559 if( name.contains("//") ) |
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560 return null; |
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561 String path = name; |
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562 check(luan,"classpath:"+path); |
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563 URL url; |
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564 if( !path.contains("#") ) { |
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565 url = ClassLoader.getSystemResource(path); |
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566 } else { |
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567 String[] a = path.split("#"); |
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568 url = ClassLoader.getSystemResource(a[0]); |
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569 if( url==null ) { |
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570 for( int i=1; i<a.length; i++ ) { |
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571 url = ClassLoader.getSystemResource(a[0]+"/"+a[i]); |
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572 if( url != null ) { |
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573 try { |
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574 url = new URL(url,"."); |
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575 } catch(MalformedURLException e) { |
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576 throw new RuntimeException(e); |
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577 } |
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578 break; |
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579 } |
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580 } |
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581 } |
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582 } |
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583 if( url != null ) |
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584 return new LuanUrl(url).table(); |
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585 |
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586 return null; |
260
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587 } |
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588 |
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589 private static LuanTable url(String url) throws IOException { |
263
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590 return new LuanUrl(new URL(url)).table(); |
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591 } |
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592 |
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593 public static LuanTable http(String path) throws IOException { |
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594 return url("http:"+path); |
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595 } |
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596 |
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597 public static LuanTable https(String path) throws IOException { |
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598 return url("https:"+path); |
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599 } |
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600 |
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601 public static LuanTable luan(LuanState luan,String path) throws LuanException { |
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602 return classpath( luan, "luan/modules/" + path ); |
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603 } |
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604 |
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605 public static LuanTable stdin(LuanState luan) throws LuanException { |
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606 LuanTable io = (LuanTable)PackageLuan.require(luan,"luan:Io.luan"); |
575
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607 return (LuanTable)io.get(luan,"stdin"); |
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608 } |
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609 |
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610 public static LuanTable newSchemes() { |
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611 LuanTable schemes = new LuanTable(); |
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612 try { |
590 | 613 schemes.rawPut( "null", new LuanJavaFunction(IoLuan.class.getMethod("null_"),null) ); |
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614 add( schemes, "string", String.class ); |
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615 add( schemes, "file", LuanState.class, String.class ); |
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616 add( schemes, "classpath", LuanState.class, String.class ); |
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617 add( schemes, "socket", String.class ); |
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618 add( schemes, "http", String.class ); |
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619 add( schemes, "https", String.class ); |
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620 add( schemes, "luan", LuanState.class, String.class ); |
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621 add( schemes, "stdin", LuanState.class ); |
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622 } catch(NoSuchMethodException e) { |
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623 throw new RuntimeException(e); |
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624 } |
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625 return schemes; |
260
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626 } |
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627 |
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628 private static LuanTable schemes(LuanState luan) throws LuanException { |
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629 LuanTable t = (LuanTable)PackageLuan.loaded(luan).rawGet("luan:Io.luan"); |
260
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630 if( t == null ) |
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631 return newSchemes(); |
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632 t = (LuanTable)t.get(luan,"schemes"); |
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633 if( t == null ) |
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634 return newSchemes(); |
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635 return t; |
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636 } |
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637 |
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638 public static LuanTable uri(LuanState luan,String name) throws LuanException { |
260
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639 int i = name.indexOf(':'); |
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640 if( i == -1 ) |
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641 throw new LuanException( "invalid Io.uri name '"+name+"', missing scheme" ); |
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642 String scheme = name.substring(0,i); |
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643 String location = name.substring(i+1); |
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644 LuanTable schemes = schemes(luan); |
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645 LuanFunction opener = (LuanFunction)schemes.get(luan,scheme); |
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646 if( opener == null ) |
646
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647 throw new LuanException( "invalid scheme '"+scheme+"' in '"+name+"'" ); |
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648 return (LuanTable)Luan.first(opener.call(luan,new Object[]{location})); |
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649 } |
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650 |
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651 public static final class LuanSocket extends LuanIO { |
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652 private final Socket socket; |
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653 |
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654 private LuanSocket(String host,int port) throws IOException { |
125
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655 this(new Socket(host,port)); |
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656 } |
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657 |
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658 private LuanSocket(Socket socket) throws IOException { |
125
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659 this.socket = socket; |
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660 } |
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661 |
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662 @Override InputStream inputStream() throws IOException { |
125
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663 return socket.getInputStream(); |
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664 } |
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665 |
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666 @Override OutputStream outputStream() throws IOException { |
125
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667 return socket.getOutputStream(); |
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668 } |
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669 |
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670 @Override public String to_string() { |
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671 return socket.toString(); |
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672 } |
705 | 673 |
674 @Override public String to_uri_string() { | |
675 throw new UnsupportedOperationException(); | |
676 } | |
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677 } |
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678 |
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679 public static LuanTable socket(String name) throws LuanException, IOException { |
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680 int i = name.indexOf(':'); |
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681 if( i == -1 ) |
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682 throw new LuanException( "invalid socket '"+name+"', format is: <host>:<port>" ); |
262
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683 String host = name.substring(0,i); |
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684 String portStr = name.substring(i+1); |
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685 int port = Integer.parseInt(portStr); |
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686 return new LuanSocket(host,port).table(); |
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687 } |
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688 |
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689 public static LuanFunction socket_server(int port) throws IOException { |
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690 final ServerSocket ss = new ServerSocket(port); |
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691 return new LuanFunction() { |
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692 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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693 try { |
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694 if( args.length > 0 ) { |
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695 if( args.length > 1 || !"close".equals(args[0]) ) |
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696 throw new LuanException( "the only argument allowed is 'close'" ); |
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697 ss.close(); |
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698 return null; |
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699 } |
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700 return new LuanSocket(ss.accept()).table(); |
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701 } catch(IOException e) { |
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702 throw new LuanException(e); |
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703 } |
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704 } |
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705 }; |
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706 } |
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707 |
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708 |
701 | 709 public static String ip(String domain) { |
710 try { | |
711 return InetAddress.getByName(domain).getHostAddress(); | |
712 } catch(UnknownHostException e) { | |
713 return null; | |
714 } | |
715 } | |
716 | |
717 | |
706 | 718 // files maps zip name to uri |
719 public static void zip(LuanState luan,String zipUri,LuanTable files) throws LuanException, IOException { | |
720 Object obj = uri(luan,zipUri).rawGet("java"); | |
721 if( !(obj instanceof LuanIO) ) | |
722 throw new LuanException("invalid uri for zip"); | |
723 LuanIO zipIo = (LuanIO)obj; | |
724 ZipOutputStream out = new ZipOutputStream(zipIo.outputStream()); | |
725 for( Map.Entry<Object,Object> entry : files.iterable(luan) ) { | |
726 obj = entry.getKey(); | |
727 if( !(obj instanceof String) ) | |
728 throw new LuanException("zip file table keys must be strings"); | |
729 String fileName = (String)obj; | |
730 obj = entry.getValue(); | |
731 if( !(obj instanceof String) ) | |
732 throw new LuanException("zip file table values must be strings"); | |
733 String uriStr = (String)obj; | |
734 out.putNextEntry(new ZipEntry(fileName)); | |
735 obj = uri(luan,uriStr).rawGet("java"); | |
736 if( !(obj instanceof LuanIn) ) | |
737 throw new LuanException("invalid uri for zip"); | |
738 LuanIn zipIn = (LuanIn)obj; | |
739 InputStream in = zipIn.inputStream(); | |
740 Utils.copyAll(in,out); | |
741 in.close(); | |
742 out.closeEntry(); | |
743 } | |
744 out.close(); | |
745 } | |
746 | |
747 | |
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748 // security |
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749 |
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750 public interface Security { |
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751 public void check(LuanState luan,String name) throws LuanException; |
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752 } |
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753 |
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754 private static String SECURITY_KEY = "Io.Security"; |
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755 |
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756 private static void check(LuanState luan,String name) throws LuanException { |
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757 Security s = (Security)luan.registry().get(SECURITY_KEY); |
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758 if( s!=null ) |
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759 s.check(luan,name); |
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760 } |
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761 |
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762 public static void setSecurity(LuanState luan,Security s) { |
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763 luan.registry().put(SECURITY_KEY,s); |
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764 } |
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765 |
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766 private void IoLuan() {} // never |
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767 } |