belugabehr commented on pull request #815:
URL: https://github.com/apache/parquet-mr/pull/815#issuecomment-696929711
Here are a couple of starters:
```
private final ByteBuffer oneByteBuffer = ByteBuffer.allocate(1);
@Override
public int read() throws IOException {
int read = this.channel.read(this.oneByteBuffer.rewind());
if (read < 0) {
return read;
}
return (0xFF & this.oneByteBuffer.flip().get());
}
@Override
public void readFully(byte[] bytes) throws IOException {
ByteBuffer bb = ByteBuffer.allocate(bytes.length);
while (bb.hasRemaining()) {
int read =
this.channel.read(bb);
if (read == -1) {
throw new
EOFException();
}
}
bb.flip().get(bytes);
}
```
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