/** Skips over one Text in the input. */
public static void skip(DataInput in) throws IOException {
int length = WritableUtils.readVInt(in);
WritableUtils.skipFully(in, length);
}
/** Read a UTF8 encoded string from in */
public static String readString(DataInput in) throws IOException {
int length = WritableUtils.readVInt(in);
byte[] bytes = new byte[length];
in.readFully(bytes, 0, length);
return decode(bytes);
}
/** deserialize */
public void readFields(DataInput in) throws IOException {
int newLength = WritableUtils.readVInt(in);
setCapacity(newLength, false);
in.readFully(bytes, 0, newLength);
length = newLength;
}