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annotate core/src/luan/modules/IoLuan.java @ 202:75750ceb45ee

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add LuanState.registry git-svn-id: https://luan-java.googlecode.com/svn/trunk@203 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Fri, 04 Jul 2014 17:18:39 +0000
parents 3dcb0f9bee82
children 99eef1d0e706
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rev   line source
167
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1 package luan.modules;
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2
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3 import java.io.InputStream;
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4 import java.io.OutputStream;
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5 import java.io.PrintStream;
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6 import java.io.Reader;
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7 import java.io.Writer;
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8 import java.io.BufferedReader;
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9 import java.io.BufferedWriter;
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10 import java.io.BufferedInputStream;
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11 import java.io.BufferedOutputStream;
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12 import java.io.File;
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13 import java.io.FileInputStream;
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14 import java.io.FileOutputStream;
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15 import java.io.InputStreamReader;
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16 import java.io.OutputStreamWriter;
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17 import java.io.ByteArrayInputStream;
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18 import java.io.DataInputStream;
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19 import java.io.DataOutputStream;
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20 import java.io.IOException;
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21 import java.net.URL;
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22 import java.net.Socket;
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23 import java.net.ServerSocket;
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24 import java.net.MalformedURLException;
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25 import luan.LuanState;
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26 import luan.LuanTable;
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27 import luan.LuanFunction;
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28 import luan.LuanJavaFunction;
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29 import luan.LuanException;
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30
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31
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32 public final class IoLuan {
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33
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34 public static final LuanFunction LOADER = new LuanFunction() {
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35 @Override public Object call(LuanState luan,Object[] args) {
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36 LuanTable module = new LuanTable();
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37 try {
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38 add( module, "File", LuanState.class, String.class );
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39 add( module, "read_console_line", String.class );
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41 LuanTable stdin = new LuanTable();
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42 stdin.put( "read_text", new LuanJavaFunction(
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43 IoLuan.class.getMethod( "stdin_read_text" ), null
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44 ) );
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45 stdin.put( "read_binary", new LuanJavaFunction(
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46 IoLuan.class.getMethod( "stdin_read_binary" ), null
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47 ) );
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48 stdin.put( "read_lines", new LuanJavaFunction(
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49 IoLuan.class.getMethod( "stdin_read_lines" ), null
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50 ) );
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51 stdin.put( "read_blocks", new LuanJavaFunction(
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52 IoLuan.class.getMethod( "stdin_read_blocks", Integer.class ), null
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53 ) );
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54 module.put( "stdin", stdin );
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56 add( module, "Socket", String.class, Integer.TYPE );
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57 add( module, "socket_server", Integer.TYPE );
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58 } catch(NoSuchMethodException e) {
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59 throw new RuntimeException(e);
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60 }
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61 module.put( "stdout", textWriter(System.out) );
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62 module.put( "stderr", textWriter(System.err) );
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63 return module;
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64 }
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65 };
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66
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67 private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException {
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68 t.put( method, new LuanJavaFunction(IoLuan.class.getMethod(method,parameterTypes),null) );
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69 }
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72 public static String stdin_read_text() throws IOException {
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73 return Utils.readAll(new InputStreamReader(System.in));
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74 }
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75
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76 public static byte[] stdin_read_binary() throws IOException {
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77 return Utils.readAll(System.in);
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78 }
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80 public static LuanFunction stdin_read_lines() throws IOException {
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81 return lines(new BufferedReader(new InputStreamReader(System.in)));
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82 }
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83
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84 public static LuanFunction stdin_read_blocks(Integer blockSize) throws IOException {
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85 int n = blockSize!=null ? blockSize : Utils.bufSize;
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86 return blocks(System.in,n);
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87 }
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88
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89 public static String read_console_line(String prompt) throws IOException {
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90 if( prompt==null )
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91 prompt = "> ";
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92 return System.console().readLine(prompt);
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93 }
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96 public interface LuanWriter {
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97 public void write(LuanState luan,Object... args) throws LuanException, IOException;
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98 public void close() throws IOException;
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99 }
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100
122
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101 public static LuanTable textWriter(final PrintStream out) {
115
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102 LuanWriter luanWriter = new LuanWriter() {
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103
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104 public void write(LuanState luan,Object... args) throws LuanException {
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105 for( Object obj : args ) {
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106 out.print( luan.toString(obj) );
115
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107 }
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108 }
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109
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110 public void close() {
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111 out.close();
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112 }
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113 };
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114 return writer(luanWriter);
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115 }
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116
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117 public static LuanTable textWriter(final Writer out) {
115
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118 LuanWriter luanWriter = new LuanWriter() {
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119
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120 public void write(LuanState luan,Object... args) throws LuanException, IOException {
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121 for( Object obj : args ) {
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122 out.write( luan.toString(obj) );
115
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123 }
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124 }
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125
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126 public void close() throws IOException {
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127 out.close();
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128 }
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129 };
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130 return writer(luanWriter);
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131 }
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132
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133 private static LuanTable writer(LuanWriter luanWriter) {
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134 LuanTable writer = new LuanTable();
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135 try {
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136 writer.put( "write", new LuanJavaFunction(
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137 LuanWriter.class.getMethod( "write", LuanState.class, new Object[0].getClass() ), luanWriter
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138 ) );
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139 writer.put( "close", new LuanJavaFunction(
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140 LuanWriter.class.getMethod( "close" ), luanWriter
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141 ) );
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142 } catch(NoSuchMethodException e) {
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143 throw new RuntimeException(e);
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144 }
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145 return writer;
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146 }
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147
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148
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149 public static LuanTable binaryWriter(final OutputStream out) {
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150 LuanTable writer = new LuanTable();
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151 try {
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152 writer.put( "write", new LuanJavaFunction(
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153 OutputStream.class.getMethod( "write", new byte[0].getClass() ), out
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154 ) );
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155 writer.put( "close", new LuanJavaFunction(
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156 OutputStream.class.getMethod( "close" ), out
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157 ) );
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158 } catch(NoSuchMethodException e) {
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159 throw new RuntimeException(e);
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160 }
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161 return writer;
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162 }
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163
116
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164 static LuanFunction lines(final BufferedReader in) {
115
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165 return new LuanFunction() {
116
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166 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
115
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167 try {
116
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168 if( args.length > 0 ) {
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169 if( args.length > 1 || !"close".equals(args[0]) )
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170 throw luan.exception( "the only argument allowed is 'close'" );
115
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171 in.close();
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172 return null;
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173 }
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174 String rtn = in.readLine();
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175 if( rtn==null )
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176 in.close();
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177 return rtn;
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178 } catch(IOException e) {
130
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179 throw luan.exception(e);
115
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180 }
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181 }
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182 };
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183 }
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184
116
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185 static LuanFunction blocks(final InputStream in,final int blockSize) {
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186 return new LuanFunction() {
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187 final byte[] a = new byte[blockSize];
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188
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189 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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190 try {
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191 if( args.length > 0 ) {
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192 if( args.length > 1 || !"close".equals(args[0]) )
130
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193 throw luan.exception( "the only argument allowed is 'close'" );
116
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194 in.close();
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195 return null;
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196 }
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197 if( in.read(a) == -1 ) {
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198 in.close();
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199 return null;
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200 }
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201 return a;
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202 } catch(IOException e) {
130
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203 throw luan.exception(e);
116
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204 }
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205 }
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206 };
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207 }
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208
125
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209
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210
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211 public static abstract class LuanIn {
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212 abstract InputStream inputStream() throws IOException;
147
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213 public abstract String to_string();
125
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214
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215 public String read_text() throws IOException {
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216 Reader in = new InputStreamReader(inputStream());
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217 String s = Utils.readAll(in);
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218 in.close();
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219 return s;
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220 }
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221
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222 public byte[] read_binary() throws IOException {
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223 InputStream in = inputStream();
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224 byte[] a = Utils.readAll(in);
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225 in.close();
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226 return a;
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227 }
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228
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229 public LuanFunction read_lines() throws IOException {
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230 return lines(new BufferedReader(new InputStreamReader(inputStream())));
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231 }
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232
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233 public LuanFunction read_blocks(Integer blockSize) throws IOException {
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234 int n = blockSize!=null ? blockSize : Utils.bufSize;
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235 return blocks(inputStream(),n);
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236 }
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237
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238 LuanTable table() {
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239 LuanTable tbl = new LuanTable();
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240 try {
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241 tbl.put( "to_string", new LuanJavaFunction(
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242 LuanIn.class.getMethod( "to_string" ), this
143
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243 ) );
125
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244 tbl.put( "read_text", new LuanJavaFunction(
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245 LuanIn.class.getMethod( "read_text" ), this
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246 ) );
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247 tbl.put( "read_binary", new LuanJavaFunction(
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248 LuanIn.class.getMethod( "read_binary" ), this
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249 ) );
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250 tbl.put( "read_lines", new LuanJavaFunction(
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251 LuanIn.class.getMethod( "read_lines" ), this
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252 ) );
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253 tbl.put( "read_blocks", new LuanJavaFunction(
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254 LuanIn.class.getMethod( "read_blocks", Integer.class ), this
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255 ) );
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256 } catch(NoSuchMethodException e) {
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257 throw new RuntimeException(e);
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258 }
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259 return tbl;
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260 }
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261 }
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262
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263 public static abstract class LuanIO extends LuanIn {
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264 abstract OutputStream outputStream() throws IOException;
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265
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266 public void write(LuanState luan,Object obj) throws LuanException, IOException {
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267 if( obj instanceof String ) {
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268 String s = (String)obj;
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269 Writer out = new OutputStreamWriter(outputStream());
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270 out.write(s);
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271 out.close();
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272 return;
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273 }
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274 if( obj instanceof byte[] ) {
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275 byte[] a = (byte[])obj;
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276 OutputStream out = outputStream();
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277 Utils.copyAll(new ByteArrayInputStream(a),out);
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278 out.close();
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279 return;
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280 }
130
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281 throw luan.exception( "bad argument #1 to 'write' (string or binary expected)" );
125
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282 }
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283
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284 public LuanTable text_writer() throws IOException {
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285 return textWriter(new BufferedWriter(new OutputStreamWriter(outputStream())));
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286 }
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287
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288 public LuanTable binary_writer() throws IOException {
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289 return binaryWriter(new BufferedOutputStream(outputStream()));
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290 }
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291
129
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292 @Override LuanTable table() {
125
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293 LuanTable tbl = super.table();
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294 try {
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295 tbl.put( "write", new LuanJavaFunction(
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296 LuanIO.class.getMethod( "write", LuanState.class, Object.class ), this
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297 ) );
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298 tbl.put( "text_writer", new LuanJavaFunction(
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299 LuanIO.class.getMethod( "text_writer" ), this
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300 ) );
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301 tbl.put( "binary_writer", new LuanJavaFunction(
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302 LuanIO.class.getMethod( "binary_writer" ), this
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303 ) );
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304 } catch(NoSuchMethodException e) {
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305 throw new RuntimeException(e);
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306 }
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307 return tbl;
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308 }
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309 }
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310
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311 public static final class LuanUrl extends LuanIn {
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312 private final URL url;
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313
202
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314 private LuanUrl(String s) throws MalformedURLException {
125
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315 this.url = new URL(s);
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316 }
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317
144
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318 @Override InputStream inputStream() throws IOException {
125
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319 return url.openStream();
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320 }
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321
147
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322 @Override public String to_string() {
143
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323 return url.toString();
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324 }
125
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325 }
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326
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327 public static final class LuanFile extends LuanIO {
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328 private final File file;
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329
202
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330 private LuanFile(String name) {
145
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331 this(new File(name));
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332 }
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333
202
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334 private LuanFile(File file) {
145
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335 this.file = file;
125
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336 }
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337
144
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338 @Override InputStream inputStream() throws IOException {
125
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339 return new FileInputStream(file);
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340 }
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341
144
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342 @Override OutputStream outputStream() throws IOException {
125
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343 return new FileOutputStream(file);
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344 }
143
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345
147
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346 @Override public String to_string() {
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347 return file.toString();
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348 }
145
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349
164
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350 public LuanTable child(String name) {
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351 return new LuanFile(new File(file,name)).table();
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352 }
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353
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354 public LuanTable children() {
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355 File[] files = file.listFiles();
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356 if( files==null )
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357 return null;
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358 LuanTable list = new LuanTable();
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359 for( File f : files ) {
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360 list.add(new LuanFile(f).table());
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361 }
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362 return list;
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363 }
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364
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365 public boolean exists() {
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366 return Utils.exists(file);
145
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367 }
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368
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369 @Override LuanTable table() {
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370 LuanTable tbl = super.table();
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371 try {
164
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372 tbl.put( "name", new LuanJavaFunction(
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373 File.class.getMethod( "getName" ), file
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374 ) );
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375 tbl.put( "exists", new LuanJavaFunction(
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376 LuanFile.class.getMethod( "exists" ), this
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377 ) );
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378 tbl.put( "is_directory", new LuanJavaFunction(
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379 File.class.getMethod( "isDirectory" ), file
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diff changeset
380 ) );
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381 tbl.put( "is_file", new LuanJavaFunction(
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382 File.class.getMethod( "isFile" ), file
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diff changeset
383 ) );
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384 tbl.put( "delete", new LuanJavaFunction(
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385 File.class.getMethod( "delete" ), file
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386 ) );
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387 tbl.put( "mkdir", new LuanJavaFunction(
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388 File.class.getMethod( "mkdir" ), file
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389 ) );
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390 tbl.put( "mkdirs", new LuanJavaFunction(
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391 File.class.getMethod( "mkdirs" ), file
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diff changeset
392 ) );
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393 tbl.put( "last_modified", new LuanJavaFunction(
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diff changeset
394 File.class.getMethod( "lastModified" ), file
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diff changeset
395 ) );
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diff changeset
396 tbl.put( "child", new LuanJavaFunction(
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diff changeset
397 LuanFile.class.getMethod( "child", String.class ), this
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diff changeset
398 ) );
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diff changeset
399 tbl.put( "children", new LuanJavaFunction(
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diff changeset
400 LuanFile.class.getMethod( "children" ), this
145
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diff changeset
401 ) );
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diff changeset
402 } catch(NoSuchMethodException e) {
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diff changeset
403 throw new RuntimeException(e);
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diff changeset
404 }
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diff changeset
405 return tbl;
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diff changeset
406 }
125
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diff changeset
407 }
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diff changeset
408
143
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diff changeset
409 public static LuanIn luanIo(LuanState luan,String name) throws LuanException {
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diff changeset
410 if( Utils.isFile(name) )
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diff changeset
411 return new LuanFile(name);
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diff changeset
412 String url = Utils.toUrl(name);
164
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diff changeset
413 if( url != null ) {
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diff changeset
414 try {
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415 return new LuanUrl(url);
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416 } catch(MalformedURLException e) {
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diff changeset
417 throw new RuntimeException(e);
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418 }
143
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419 }
164
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420 throw luan.exception( "file '"+name+"' not found" );
143
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421 }
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422
145
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423 public static LuanTable File(LuanState luan,String name) throws LuanException {
143
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424 return luanIo(luan,name).table();
125
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425 }
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426
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427 public static final class LuanSocket extends LuanIO {
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428 private final Socket socket;
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diff changeset
429
202
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430 private LuanSocket(String host,int port) throws IOException {
125
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431 this(new Socket(host,port));
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432 }
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diff changeset
433
202
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434 private LuanSocket(Socket socket) throws IOException {
125
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435 this.socket = socket;
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436 }
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diff changeset
437
144
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diff changeset
438 @Override InputStream inputStream() throws IOException {
125
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diff changeset
439 return socket.getInputStream();
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440 }
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diff changeset
441
144
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diff changeset
442 @Override OutputStream outputStream() throws IOException {
125
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443 return socket.getOutputStream();
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444 }
129
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diff changeset
445
147
cc3a0578edac fix Io.reverse_pickle
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diff changeset
446 @Override public String to_string() {
143
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diff changeset
447 return socket.toString();
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parents: 142
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448 }
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diff changeset
449
145
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diff changeset
450 public LuanTable Pickle_client(LuanState luan) throws IOException {
129
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diff changeset
451 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
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diff changeset
452 DataOutputStream out = new DataOutputStream(new BufferedOutputStream(outputStream()));
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diff changeset
453 return new PickleClient(luan,in,out).table();
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parents: 125
diff changeset
454 }
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diff changeset
455
486a0641bca4 add pickle client/server;
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diff changeset
456 public void run_pickle_server(LuanState luan) throws IOException {
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diff changeset
457 DataInputStream in = new DataInputStream(new BufferedInputStream(inputStream()));
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diff changeset
458 DataOutputStream out = new DataOutputStream(new BufferedOutputStream(outputStream()));
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diff changeset
459 new PickleServer(luan,in,out).run();
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parents: 125
diff changeset
460 }
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parents: 125
diff changeset
461
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parents: 125
diff changeset
462 @Override LuanTable table() {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
463 LuanTable tbl = super.table();
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diff changeset
464 try {
145
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diff changeset
465 tbl.put( "Pickle_client", new LuanJavaFunction(
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466 LuanSocket.class.getMethod( "Pickle_client", LuanState.class ), this
129
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diff changeset
467 ) );
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468 tbl.put( "run_pickle_server", new LuanJavaFunction(
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
469 LuanSocket.class.getMethod( "run_pickle_server", LuanState.class ), this
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
470 ) );
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diff changeset
471 } catch(NoSuchMethodException e) {
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diff changeset
472 throw new RuntimeException(e);
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diff changeset
473 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
474 return tbl;
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parents: 125
diff changeset
475 }
125
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diff changeset
476 }
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diff changeset
477
145
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diff changeset
478 public static LuanTable Socket(String host,int port) throws IOException {
125
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diff changeset
479 return new LuanSocket(host,port).table();
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diff changeset
480 }
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diff changeset
481
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diff changeset
482 public static LuanFunction socket_server(int port) throws IOException {
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diff changeset
483 final ServerSocket ss = new ServerSocket(port);
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diff changeset
484 return new LuanFunction() {
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diff changeset
485 @Override public Object call(LuanState luan,Object[] args) throws LuanException {
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diff changeset
486 try {
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diff changeset
487 if( args.length > 0 ) {
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diff changeset
488 if( args.length > 1 || !"close".equals(args[0]) )
130
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diff changeset
489 throw luan.exception( "the only argument allowed is 'close'" );
125
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diff changeset
490 ss.close();
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diff changeset
491 return null;
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diff changeset
492 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
493 return new LuanSocket(ss.accept()).table();
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diff changeset
494 } catch(IOException e) {
130
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diff changeset
495 throw luan.exception(e);
125
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diff changeset
496 }
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diff changeset
497 }
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diff changeset
498 };
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diff changeset
499 }
136
7e160d2f6d9c update HttpLib, untested
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diff changeset
500
168
ebe9db183eb7 rename *Lib.java to *Luan.java
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diff changeset
501 private void IoLuan() {} // never
115
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parents:
diff changeset
502 }