Mercurial Hosting > luan
annotate core/src/luan/modules/IoLuan.java @ 463:895afcd2b281
improve Http.init_for_test
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 06 May 2015 21:44:56 -0600 |
parents | 2e79b47d02a2 |
children | f1601a4ce1aa |
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1 package luan.modules; |
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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; |
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27 import java.net.MalformedURLException; |
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28 import java.util.List; |
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29 import java.util.ArrayList; |
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30 import luan.Luan; |
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31 import luan.LuanState; |
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32 import luan.LuanTable; |
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33 import luan.LuanFunction; |
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34 import luan.LuanJavaFunction; |
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35 import luan.LuanException; |
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36 |
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37 |
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38 public final class IoLuan { |
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39 |
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40 private static void add(LuanTable t,String method,Class... parameterTypes) throws NoSuchMethodException { |
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41 t.rawPut( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) ); |
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42 } |
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43 |
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44 public static String read_console_line(String prompt) throws IOException { |
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45 if( prompt==null ) |
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46 prompt = "> "; |
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47 return System.console().readLine(prompt); |
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48 } |
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49 |
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50 |
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51 public interface LuanWriter { |
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52 public void write(LuanState luan,Object... args) throws LuanException, IOException; |
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53 public void close() throws IOException; |
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54 } |
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55 |
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56 public static LuanTable textWriter(final PrintStream out) { |
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57 LuanWriter luanWriter = new LuanWriter() { |
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58 |
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59 public void write(LuanState luan,Object... args) throws LuanException { |
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60 for( Object obj : args ) { |
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61 out.print( luan.toString(obj) ); |
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62 } |
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63 } |
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64 |
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65 public void close() { |
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66 out.close(); |
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67 } |
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68 }; |
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69 return writer(luanWriter); |
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70 } |
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71 |
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72 public static LuanTable textWriter(final Writer out) { |
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73 LuanWriter luanWriter = new LuanWriter() { |
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74 |
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75 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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76 for( Object obj : args ) { |
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77 out.write( luan.toString(obj) ); |
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78 } |
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79 } |
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80 |
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81 public void close() throws IOException { |
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82 out.close(); |
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83 } |
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84 }; |
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85 return writer(luanWriter); |
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86 } |
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87 |
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88 private static LuanTable writer(LuanWriter luanWriter) { |
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89 LuanTable writer = new LuanTable(); |
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90 try { |
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91 writer.rawPut( "write", new LuanJavaFunction( |
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92 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter |
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93 ) ); |
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94 writer.rawPut( "close", new LuanJavaFunction( |
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95 LuanWriter.class.getMethod( "close" ), luanWriter |
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96 ) ); |
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97 } catch(NoSuchMethodException e) { |
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98 throw new RuntimeException(e); |
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99 } |
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100 return writer; |
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101 } |
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102 |
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103 |
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104 public static LuanTable binaryWriter(final OutputStream out) { |
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105 LuanTable writer = new LuanTable(); |
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106 try { |
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107 writer.rawPut( "write", new LuanJavaFunction( |
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108 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out |
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109 ) ); |
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110 writer.rawPut( "close", new LuanJavaFunction( |
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111 OutputStream.class.getMethod( "close" ), out |
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112 ) ); |
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113 } catch(NoSuchMethodException e) { |
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114 throw new RuntimeException(e); |
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115 } |
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116 return writer; |
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117 } |
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118 |
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119 static LuanFunction lines(final BufferedReader in) { |
115
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120 return new LuanFunction() { |
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121 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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122 try { |
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123 if( args.length > 0 ) { |
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124 if( args.length > 1 || !"close".equals(args[0]) ) |
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125 throw luan.exception( "the only argument allowed is 'close'" ); |
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126 in.close(); |
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127 return null; |
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128 } |
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129 String rtn = in.readLine(); |
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130 if( rtn==null ) |
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131 in.close(); |
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132 return rtn; |
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133 } catch(IOException e) { |
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134 throw luan.exception(e); |
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135 } |
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136 } |
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137 }; |
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138 } |
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139 |
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140 static LuanFunction blocks(final InputStream in,final int blockSize) { |
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141 return new LuanFunction() { |
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142 final byte[] a = new byte[blockSize]; |
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143 |
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144 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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145 try { |
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146 if( args.length > 0 ) { |
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147 if( args.length > 1 || !"close".equals(args[0]) ) |
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148 throw luan.exception( "the only argument allowed is 'close'" ); |
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149 in.close(); |
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150 return null; |
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151 } |
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152 if( in.read(a) == -1 ) { |
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153 in.close(); |
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154 return null; |
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155 } |
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156 return a; |
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157 } catch(IOException e) { |
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158 throw luan.exception(e); |
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159 } |
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160 } |
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161 }; |
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162 } |
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163 |
125
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164 |
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165 |
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166 public static abstract class LuanIn { |
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167 abstract InputStream inputStream() throws IOException; |
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168 public abstract String to_string(); |
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169 |
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170 public Reader reader() throws IOException { |
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171 return new InputStreamReader(inputStream()); |
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172 } |
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173 |
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174 public String read_text() throws IOException { |
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175 Reader in = reader(); |
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176 String s = Utils.readAll(in); |
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177 in.close(); |
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178 return s; |
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179 } |
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180 |
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181 public byte[] read_binary() throws IOException { |
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182 InputStream in = inputStream(); |
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183 byte[] a = Utils.readAll(in); |
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184 in.close(); |
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185 return a; |
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186 } |
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187 |
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188 public LuanFunction read_lines() throws IOException { |
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189 return lines(new BufferedReader(reader())); |
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190 } |
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191 |
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192 public LuanFunction read_blocks(Integer blockSize) throws IOException { |
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193 int n = blockSize!=null ? blockSize : Utils.bufSize; |
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194 return blocks(inputStream(),n); |
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195 } |
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196 |
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197 public boolean exists() throws IOException { |
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198 try { |
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199 inputStream().close(); |
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200 return true; |
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201 } catch(FileNotFoundException e) { |
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202 return false; |
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203 } |
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204 } |
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205 |
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206 public LuanTable table() { |
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207 LuanTable tbl = new LuanTable(); |
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208 try { |
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209 tbl.rawPut( "to_string", new LuanJavaFunction( |
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210 LuanIn.class.getMethod( "to_string" ), this |
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211 ) ); |
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212 tbl.rawPut( "read_text", new LuanJavaFunction( |
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213 LuanIn.class.getMethod( "read_text" ), this |
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214 ) ); |
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215 tbl.rawPut( "read_binary", new LuanJavaFunction( |
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216 LuanIn.class.getMethod( "read_binary" ), this |
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217 ) ); |
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218 tbl.rawPut( "read_lines", new LuanJavaFunction( |
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219 LuanIn.class.getMethod( "read_lines" ), this |
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220 ) ); |
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221 tbl.rawPut( "read_blocks", new LuanJavaFunction( |
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222 LuanIn.class.getMethod( "read_blocks", Integer.class ), this |
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223 ) ); |
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224 tbl.rawPut( "exists", new LuanJavaFunction( |
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225 LuanIn.class.getMethod( "exists" ), this |
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226 ) ); |
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227 } catch(NoSuchMethodException e) { |
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228 throw new RuntimeException(e); |
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229 } |
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230 return tbl; |
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231 } |
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232 } |
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233 |
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234 public static final LuanIn defaultStdin = new LuanIn() { |
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235 |
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236 @Override InputStream inputStream() { |
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237 return System.in; |
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238 } |
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239 |
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240 @Override public String to_string() { |
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241 return "<stdin>"; |
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242 } |
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243 |
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244 @Override public String read_text() throws IOException { |
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245 return Utils.readAll(new InputStreamReader(System.in)); |
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246 } |
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247 |
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248 @Override public byte[] read_binary() throws IOException { |
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249 return Utils.readAll(System.in); |
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250 } |
265
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251 |
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252 @Override public boolean exists() { |
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253 return true; |
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254 } |
261
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255 }; |
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256 |
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257 public static abstract class LuanIO extends LuanIn { |
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258 abstract OutputStream outputStream() throws IOException; |
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259 |
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260 public void write(LuanState luan,Object obj) throws LuanException, IOException { |
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261 if( obj instanceof String ) { |
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262 String s = (String)obj; |
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263 Writer out = new OutputStreamWriter(outputStream()); |
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264 out.write(s); |
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265 out.close(); |
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266 return; |
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267 } |
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268 if( obj instanceof byte[] ) { |
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269 byte[] a = (byte[])obj; |
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270 OutputStream out = outputStream(); |
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271 Utils.copyAll(new ByteArrayInputStream(a),out); |
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272 out.close(); |
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273 return; |
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274 } |
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275 throw luan.exception( "bad argument #1 to 'write' (string or binary expected)" ); |
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276 } |
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277 |
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278 public LuanTable text_writer() throws IOException { |
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279 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream()))); |
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280 } |
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281 |
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282 public LuanTable binary_writer() throws IOException { |
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283 return binaryWriter(new BufferedOutputStream(outputStream())); |
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284 } |
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285 |
297
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286 @Override public LuanTable table() { |
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287 LuanTable tbl = super.table(); |
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288 try { |
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289 tbl.rawPut( "write", new LuanJavaFunction( |
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290 LuanIO.class.getMethod( "write", LuanState.class, Object.class ), this |
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291 ) ); |
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292 tbl.rawPut( "text_writer", new LuanJavaFunction( |
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293 LuanIO.class.getMethod( "text_writer" ), this |
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294 ) ); |
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295 tbl.rawPut( "binary_writer", new LuanJavaFunction( |
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296 LuanIO.class.getMethod( "binary_writer" ), this |
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297 ) ); |
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298 } catch(NoSuchMethodException e) { |
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299 throw new RuntimeException(e); |
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300 } |
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301 return tbl; |
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302 } |
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303 } |
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304 |
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305 public static final class LuanString extends LuanIO { |
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306 private String s; |
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307 |
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308 private LuanString(String s) { |
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309 this.s = s; |
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310 } |
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311 |
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312 @Override InputStream inputStream() { |
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313 throw new UnsupportedOperationException(); |
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314 } |
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315 |
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316 @Override OutputStream outputStream() { |
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317 throw new UnsupportedOperationException(); |
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318 } |
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319 |
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320 @Override public String to_string() { |
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321 return "<string>"; |
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322 } |
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323 |
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324 @Override public Reader reader() { |
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325 return new StringReader(s); |
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326 } |
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327 |
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328 @Override public String read_text() { |
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329 return s; |
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330 } |
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331 |
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332 @Override public boolean exists() { |
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333 return true; |
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334 } |
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335 |
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336 @Override public LuanTable text_writer() throws IOException { |
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337 LuanWriter luanWriter = new LuanWriter() { |
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338 private final Writer out = new StringWriter(); |
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339 |
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340 public void write(LuanState luan,Object... args) throws LuanException, IOException { |
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341 for( Object obj : args ) { |
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342 out.write( luan.toString(obj) ); |
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343 } |
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344 } |
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345 |
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346 public void close() throws IOException { |
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347 s = out.toString(); |
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348 } |
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349 }; |
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350 return writer(luanWriter); |
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351 } |
314
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352 } |
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353 |
125
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354 public static final class LuanUrl extends LuanIn { |
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355 private final URL url; |
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356 |
263
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357 private LuanUrl(URL url) { |
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358 this.url = url; |
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359 } |
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360 |
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361 @Override InputStream inputStream() throws IOException { |
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362 return url.openStream(); |
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363 } |
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364 |
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365 @Override public String to_string() { |
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366 return url.toString(); |
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367 } |
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368 |
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369 public String post(String postS) throws IOException { |
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370 return new UrlCall(url).post(postS); |
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371 } |
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372 |
297
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373 @Override public LuanTable table() { |
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374 LuanTable tbl = super.table(); |
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375 try { |
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376 tbl.rawPut( "post", new LuanJavaFunction( |
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377 LuanUrl.class.getMethod( "post", String.class ), this |
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378 ) ); |
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379 } catch(NoSuchMethodException e) { |
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380 throw new RuntimeException(e); |
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381 } |
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382 return tbl; |
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383 } |
125
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384 } |
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385 |
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386 public static final class LuanFile extends LuanIO { |
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387 private final File file; |
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388 |
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389 private LuanFile(LuanState luan,File file) throws LuanException { |
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390 this(file); |
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391 check(luan,"file:"+file.toString()); |
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392 } |
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393 |
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394 private LuanFile(File file) { |
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395 this.file = file; |
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396 } |
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397 |
144
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398 @Override InputStream inputStream() throws IOException { |
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399 return new FileInputStream(file); |
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400 } |
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401 |
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402 @Override OutputStream outputStream() throws IOException { |
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403 return new FileOutputStream(file); |
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404 } |
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405 |
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406 @Override public String to_string() { |
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407 return file.toString(); |
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408 } |
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409 |
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410 public LuanTable child(LuanState luan,String name) throws LuanException { |
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411 return new LuanFile(luan,new File(file,name)).table(); |
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412 } |
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413 |
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414 public LuanTable children(LuanState luan) throws LuanException { |
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415 File[] files = file.listFiles(); |
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416 if( files==null ) |
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417 return null; |
411
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418 LuanTable list = new LuanTable(); |
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419 for( File f : files ) { |
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420 list.rawPut(list.rawLength()+1,new LuanFile(luan,f).table()); |
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421 } |
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422 return list; |
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423 } |
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424 |
323
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425 public LuanTable parent(LuanState luan) throws LuanException, IOException { |
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426 File parent = file.getParentFile(); |
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427 if( parent==null ) |
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428 parent = file.getCanonicalFile().getParentFile(); |
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429 return new LuanFile(luan,parent).table(); |
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430 } |
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431 |
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432 @Override public boolean exists() { |
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433 return file.exists(); |
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434 } |
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435 |
293
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436 public boolean rename_to(String dest) { |
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437 return file.renameTo(new File(dest)); |
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438 } |
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439 |
310
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440 public LuanTable canonical(LuanState luan) throws LuanException, IOException { |
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441 return new LuanFile(luan,file.getCanonicalFile()).table(); |
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442 } |
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443 |
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remove PackageLuan.load_lib()
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444 @Override public LuanTable table() { |
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445 LuanTable tbl = super.table(); |
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446 try { |
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447 tbl.rawPut( "name", new LuanJavaFunction( |
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448 File.class.getMethod( "getName" ), file |
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449 ) ); |
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450 tbl.rawPut( "is_directory", new LuanJavaFunction( |
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451 File.class.getMethod( "isDirectory" ), file |
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452 ) ); |
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453 tbl.rawPut( "is_file", new LuanJavaFunction( |
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454 File.class.getMethod( "isFile" ), file |
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455 ) ); |
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456 tbl.rawPut( "delete", new LuanJavaFunction( |
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457 File.class.getMethod( "delete" ), file |
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458 ) ); |
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459 tbl.rawPut( "mkdir", new LuanJavaFunction( |
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460 File.class.getMethod( "mkdir" ), file |
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461 ) ); |
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462 tbl.rawPut( "mkdirs", new LuanJavaFunction( |
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463 File.class.getMethod( "mkdirs" ), file |
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464 ) ); |
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465 tbl.rawPut( "last_modified", new LuanJavaFunction( |
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466 File.class.getMethod( "lastModified" ), file |
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467 ) ); |
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468 tbl.rawPut( "child", new LuanJavaFunction( |
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469 LuanFile.class.getMethod( "child", LuanState.class, String.class ), this |
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470 ) ); |
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471 tbl.rawPut( "children", new LuanJavaFunction( |
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472 LuanFile.class.getMethod( "children", LuanState.class ), this |
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473 ) ); |
427
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474 tbl.rawPut( "parent", new LuanJavaFunction( |
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475 LuanFile.class.getMethod( "parent", LuanState.class ), this |
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476 ) ); |
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477 tbl.rawPut( "rename_to", new LuanJavaFunction( |
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478 LuanFile.class.getMethod( "rename_to", String.class ), this |
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479 ) ); |
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480 tbl.rawPut( "canonical", new LuanJavaFunction( |
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481 LuanFile.class.getMethod( "canonical", LuanState.class ), this |
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482 ) ); |
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483 } catch(NoSuchMethodException e) { |
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484 throw new RuntimeException(e); |
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485 } |
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486 return tbl; |
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487 } |
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488 } |
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489 |
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490 public static LuanTable string(LuanState luan,String s) throws LuanException { |
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491 Utils.checkNotNull(luan,s); |
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492 return new LuanString(s).table(); |
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493 } |
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494 |
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495 public static LuanTable file(LuanState luan,String name,Boolean addExtension) throws LuanException { |
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496 if( addExtension != null && addExtension ) |
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497 name += ".luan"; |
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498 File file = new File(name); |
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499 return new LuanFile(file).table(); |
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500 } |
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501 |
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502 public static LuanTable classpath(LuanState luan,String name,Boolean addExtension) throws LuanException { |
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503 if( name.contains("//") ) |
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504 return null; |
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505 if( addExtension != null && addExtension ) |
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506 name += ".luan"; |
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507 String path = name; |
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508 check(luan,"classpath:"+path); |
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509 URL url; |
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510 if( !path.contains("#") ) { |
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511 url = ClassLoader.getSystemResource(path); |
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512 } else { |
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513 String[] a = path.split("#"); |
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514 url = ClassLoader.getSystemResource(a[0]); |
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515 if( url==null ) { |
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516 for( int i=1; i<a.length; i++ ) { |
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517 url = ClassLoader.getSystemResource(a[0]+"/"+a[i]); |
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518 if( url != null ) { |
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519 try { |
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520 url = new URL(url,"."); |
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521 } catch(MalformedURLException e) { |
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522 throw new RuntimeException(e); |
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523 } |
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524 break; |
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525 } |
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526 } |
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527 } |
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528 } |
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529 if( url != null ) |
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530 return new LuanUrl(url).table(); |
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531 |
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532 return null; |
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533 } |
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534 |
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535 private static LuanTable url(String url,Boolean addExtension) throws IOException { |
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536 if( addExtension != null && addExtension ) |
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537 url += ".luan"; |
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538 return new LuanUrl(new URL(url)).table(); |
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539 } |
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540 |
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541 public static LuanTable http(String path,Boolean addExtension) throws IOException { |
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542 return url("http:"+path,addExtension); |
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543 } |
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544 |
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545 public static LuanTable https(String path,Boolean addExtension) throws IOException { |
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546 return url("https:"+path,addExtension); |
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547 } |
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548 |
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549 public static LuanTable luan(LuanState luan,String path,Boolean addExtension) throws LuanException { |
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550 return classpath( luan, "luan/modules/" + path, addExtension ); |
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551 } |
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552 |
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553 public static LuanTable stdin(LuanState luan) throws LuanException { |
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554 LuanTable io = (LuanTable)PackageLuan.require(luan,"luan:Io"); |
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555 return (LuanTable)io.get(luan,"stdin"); |
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556 } |
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557 |
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558 public static LuanTable newSchemes() { |
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559 LuanTable schemes = new LuanTable(); |
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560 try { |
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561 add( schemes, "string", LuanState.class, String.class ); |
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562 add( schemes, "file", LuanState.class, String.class, Boolean.class ); |
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563 add( schemes, "classpath", LuanState.class, String.class, Boolean.class ); |
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564 add( schemes, "socket", LuanState.class, String.class ); |
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565 add( schemes, "http", String.class, Boolean.class ); |
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566 add( schemes, "https", String.class, Boolean.class ); |
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567 add( schemes, "luan", LuanState.class, String.class, Boolean.class ); |
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568 add( schemes, "stdin", LuanState.class ); |
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569 } catch(NoSuchMethodException e) { |
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570 throw new RuntimeException(e); |
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571 } |
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572 return schemes; |
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573 } |
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574 |
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575 private static LuanTable schemes(LuanState luan) throws LuanException { |
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576 LuanTable t = (LuanTable)PackageLuan.loaded(luan).rawGet("luan:Io"); |
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577 if( t == null ) |
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578 return newSchemes(); |
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579 t = (LuanTable)t.get(luan,"schemes"); |
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580 if( t == null ) |
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581 return newSchemes(); |
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582 return t; |
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583 } |
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584 |
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585 public static LuanTable uri(LuanState luan,String name,Boolean addExtension) throws LuanException { |
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586 int i = name.indexOf(':'); |
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587 if( i == -1 ) |
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588 throw luan.exception( "invalid Io.uri name '"+name+"', missing scheme" ); |
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589 String scheme = name.substring(0,i); |
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590 String location = name.substring(i+1); |
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591 LuanTable schemes = schemes(luan); |
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592 LuanFunction opener = (LuanFunction)schemes.get(luan,scheme); |
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593 if( opener == null ) |
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594 throw luan.exception( "invalid scheme '"+scheme+"' in '"+name+"'" ); |
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595 return (LuanTable)Luan.first(luan.call(opener,"<open \""+name+"\">",new Object[]{location,addExtension})); |
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596 } |
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597 |
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598 public static final class LuanSocket extends LuanIO { |
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599 private final Socket socket; |
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600 |
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601 private LuanSocket(String host,int port) throws IOException { |
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602 this(new Socket(host,port)); |
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603 } |
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604 |
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605 private LuanSocket(Socket socket) throws IOException { |
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606 this.socket = socket; |
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607 } |
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608 |
144
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609 @Override InputStream inputStream() throws IOException { |
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610 return socket.getInputStream(); |
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611 } |
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612 |
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613 @Override OutputStream outputStream() throws IOException { |
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614 return socket.getOutputStream(); |
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615 } |
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616 |
147
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617 @Override public String to_string() { |
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618 return socket.toString(); |
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619 } |
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620 |
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621 public LuanTable pickle_client(LuanState luan) throws IOException { |
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622 InputStream in = new BufferedInputStream(inputStream()); |
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623 OutputStream out = new BufferedOutputStream(outputStream()); |
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624 return new PickleClient(luan,in,out).table(); |
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625 } |
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626 |
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627 public void run_pickle_server(LuanState luan) throws IOException, LuanException { |
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628 InputStream in = new BufferedInputStream(inputStream()); |
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629 OutputStream out = new BufferedOutputStream(outputStream()); |
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630 new PickleServer(luan,in,out).run(); |
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631 } |
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632 |
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633 @Override public LuanTable table() { |
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634 LuanTable tbl = super.table(); |
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635 try { |
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636 tbl.rawPut( "pickle_client", new LuanJavaFunction( |
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637 LuanSocket.class.getMethod( "pickle_client", LuanState.class ), this |
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638 ) ); |
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639 tbl.rawPut( "run_pickle_server", new LuanJavaFunction( |
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640 LuanSocket.class.getMethod( "run_pickle_server", LuanState.class ), this |
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641 ) ); |
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642 } catch(NoSuchMethodException e) { |
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643 throw new RuntimeException(e); |
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644 } |
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645 return tbl; |
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646 } |
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647 } |
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648 |
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649 public static LuanTable socket(LuanState luan,String name) throws LuanException, IOException { |
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650 int i = name.indexOf(':'); |
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651 if( i == -1 ) |
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652 throw luan.exception( "invalid socket '"+name+"', format is: <host>:<port>" ); |
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653 String host = name.substring(0,i); |
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654 String portStr = name.substring(i+1); |
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655 int port = Integer.parseInt(portStr); |
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656 return new LuanSocket(host,port).table(); |
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657 } |
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658 |
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659 public static LuanFunction socket_server(int port) throws IOException { |
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660 final ServerSocket ss = new ServerSocket(port); |
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661 return new LuanFunction() { |
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662 @Override public Object call(LuanState luan,Object[] args) throws LuanException { |
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663 try { |
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664 if( args.length > 0 ) { |
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665 if( args.length > 1 || !"close".equals(args[0]) ) |
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666 throw luan.exception( "the only argument allowed is 'close'" ); |
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667 ss.close(); |
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668 return null; |
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669 } |
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670 return new LuanSocket(ss.accept()).table(); |
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671 } catch(IOException e) { |
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672 throw luan.exception(e); |
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673 } |
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674 } |
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675 }; |
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676 } |
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677 |
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678 |
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679 // security |
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680 |
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681 public interface Security { |
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682 public void check(LuanState luan,String name) throws LuanException; |
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683 } |
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684 |
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685 private static String SECURITY_KEY = "Io.Security"; |
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686 |
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687 private static void check(LuanState luan,String name) throws LuanException { |
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688 Security s = (Security)luan.registry().get(SECURITY_KEY); |
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689 if( s!=null ) |
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690 s.check(luan,name); |
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691 } |
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692 |
204
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693 public static void setSecurity(LuanState luan,Security s) { |
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694 luan.registry().put(SECURITY_KEY,s); |
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695 } |
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696 |
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697 private void IoLuan() {} // never |
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698 } |