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Posted to hdfs-dev@hadoop.apache.org by "Sahil Kang (JIRA)" <ji...@apache.org> on 2016/11/07 02:35:58 UTC

[jira] [Created] (HDFS-11115) Remove bytes2Array and string2Bytes

Sahil Kang created HDFS-11115:
---------------------------------

             Summary: Remove bytes2Array and string2Bytes
                 Key: HDFS-11115
                 URL: https://issues.apache.org/jira/browse/HDFS-11115
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs, hdfs-client
            Reporter: Sahil Kang
            Priority: Minor


In DFSUtilClient.java we have something like:
{code: language=java}
public static byte[] string2Bytes(String str) {
  try {
    return str.getBytes("UTF-8");
  } catch (UnsupportedEncodingException e) {
    throw new IllegalArgumentException("UTF8 decoding is not supported", e);
  }
}

static String bytes2String(byte[] bytes, int offset, int length) {
  try {
    return new String(bytes, offset, length, "UTF-8");
  } catch (UnsupportedEncodingException e) {
    throw new IllegalArgumentException("UTF8 encoding is not supported", e);
  }
}
{code}

Using StandardCharsets, these methods become trivial:
{code: language=java}
public static byte[] string2Bytes(String str) {
  return str.getBytes(StandardCharsets.UTF_8);
}

static String bytes2String(byte[] bytes, int offset, int length) {
  return new String(bytes, offset, length, StandardCharsets.UTF_8);
}
{code}

I think we should remove these methods and use StandardCharsets whenever we need to convert between bytes and strings.



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