FileUtil


1   // Copyright (c) 2003 Jython project
2   package org.python.core;
3   
4   import java.io.ByteArrayOutputStream  ;
5   import java.io.InputStream  ;
6   import java.io.IOException  ;
7   
8   /**
9    * Utility methods for Java file handling.
10   */
11  public class FileUtil {
12      /**
13       * Read all bytes from the input stream.
14       * <p/>
15       * Note that using this method to read very large streams could
16       * cause out-of-memory exceptions and/or block for large periods
17       * of time.
18       */
19      public static byte[] readBytes(InputStream   in)
20        throws IOException   {
21          final int bufsize = 8192; // nice buffer size used in JDK
22          byte[] buf = new byte[bufsize];
23          ByteArrayOutputStream   out =
24            new ByteArrayOutputStream  (bufsize);
25          int count;
26          while (true) {
27              count = in.read(buf, 0, bufsize);
28              if (count < 0) {
29                  break;
30              }
31              out.write(buf, 0, count);
32          }
33          return out.toByteArray();
34      }
35  }
36

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