bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/procedure/StringIO.java

   1 package org.simantics.scl.runtime.procedure;\r
   2 \r
   3 import java.io.BufferedWriter;\r
   4 import java.io.IOException;\r
   5 import java.nio.charset.Charset;\r
   6 import java.nio.charset.MalformedInputException;\r
   7 import java.nio.file.Files;\r
   8 import java.nio.file.Paths;\r
   9 import java.nio.file.StandardOpenOption;\r
  10 import java.util.List;\r
  11 \r
  12 public class StringIO {\r
  13     public static final Charset UTF8 = Charset.forName("UTF-8"); \r
  14     \r
  15     public static List<String> readLines(String fileName) throws IOException {\r
  16         try {\r
  17             return Files.readAllLines(Paths.get(fileName), UTF8);\r
  18         } catch(MalformedInputException e) {\r
  19             throw new RuntimeException("Encoding of the file '" + fileName + "' does not conform to UTF-8 (without BOM).");\r
  20         }\r
  21     }\r
  22     \r
  23     public static List<String> readLinesWithCharset(String charset, String fileName) throws IOException {\r
  24         try {\r
  25             return Files.readAllLines(Paths.get(fileName), Charset.forName(charset));\r
  26         } catch(MalformedInputException e) {\r
  27             throw new RuntimeException("Encoding of the file '" + fileName + "' does not conform to " + charset + ".");\r
  28         }\r
  29     }\r
  30     \r
  31     public static void writeLines(String fileName, List<String> lines) throws IOException {\r
  32         BufferedWriter writer = Files.newBufferedWriter(Paths.get(fileName), UTF8);\r
  33         for(String line : lines) {\r
  34             writer.write(line);\r
  35             writer.write("\n");\r
  36         }\r
  37         writer.close();\r
  38     }\r
  39     \r
  40     public static void appendLine(String fileName, String line) throws IOException {\r
  41         BufferedWriter writer = Files.newBufferedWriter(Paths.get(fileName), UTF8,\r
  42                 StandardOpenOption.CREATE, StandardOpenOption.APPEND);\r
  43         writer.write(line);\r
  44         writer.write("\n");\r
  45         writer.close();\r
  46     }\r
  47 }\r