src/main/java/eu/svjatoslav/commons/data/EnhancedDataInputStream.java

   1 /*
   2  * Svjatoslav Commons - shared library of common functionality.
   3  * Copyright ©2012-2014, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 3 of the GNU Lesser General Public License
   7  * or later as published by the Free Software Foundation.
   8  */
   9
  10 package eu.svjatoslav.commons.data;
  11
  12 import java.io.DataInputStream;
  13 import java.io.IOException;
  14 import java.io.InputStream;
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 public class EnhancedDataInputStream extends DataInputStream {
  19
  20         public EnhancedDataInputStream(final InputStream in) {
  21                 super(in);
  22         }
  23
  24         public List<Integer> readIntegerList() throws IOException {
  25                 final int length = readInt();
  26
  27                 final List<Integer> result = new ArrayList<Integer>();
  28
  29                 for (int i = 0; i < length; i++)
  30                         result.add(readInt());
  31
  32                 return result;
  33         }
  34
  35         public String readString() throws IOException {
  36
  37                 final int length = readInt();
  38                 if (length == -1)
  39                         return null;
  40
  41                 final byte[] bytes = new byte[length];
  42                 readFully(bytes);
  43
  44                 return new String(bytes, "UTF-8");
  45         }
  46
  47 }