com.google.cloud.bigquery.connector.common

Class NonInterruptibleBlockingBytesChannel

java.lang.Object

com.google.cloud.bigquery.connector.common.NonInterruptibleBlockingBytesChannel

All Implemented Interfaces:

Closeable, AutoCloseable, Channel, ReadableByteChannel

public class NonInterruptibleBlockingBytesChannel
extends Object
implements ReadableByteChannel

Some JDKs implement the ReadableByteChannel that wraps an input stream with a channel that will intercept and reraise interrupted exception. Normally, this is a good thing, however with the connector use-case this triggers a memory leak in the Arrow library (present as of 4.0).

So this is a temporary hack to ensure non-blocking behavior to avoid the memory leak. This should be fine because the underlying stream will be interrupted appropriately and only along full message boundaries, which should be sufficient for our use-cases.

Constructor Summary

Constructors

Constructor and Description
NonInterruptibleBlockingBytesChannel(InputStream is)

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	isOpen()
int	read(ByteBuffer dst)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NonInterruptibleBlockingBytesChannel

public NonInterruptibleBlockingBytesChannel(InputStream is)

Method Detail

read

public int read(ByteBuffer dst)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Throws:

IOException

isOpen

public boolean isOpen()

Specified by:

isOpen in interface Channel

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Channel

Throws:

IOException