Package org.apache.drill.exec.store.pcapng

Class PcapngBatchReader

java.lang.Object

org.apache.drill.exec.store.pcapng.PcapngBatchReader

All Implemented Interfaces:

ManagedReader

public class PcapngBatchReader
extends Object
implements ManagedReader

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.physical.impl.scan.v3.ManagedReader

ManagedReader.EarlyEofException

Constructor Summary

Constructors

Constructor	Description
PcapngBatchReader(PcapFormatConfig config, EasySubScan scan, FileSchemaNegotiator negotiator)

Method Summary

Modifier and Type	Method	Description
void	close()	Release resources.
boolean	next()	The default of the `stat` parameter is false, which means that the packet data is parsed and returned, but if true, will return the statistics data about the each pcapng file only (consist of the information about collect devices and the summary of the packet data above).

Methods inherited from class java.lang.Object

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

Constructor Details

PcapngBatchReader

public PcapngBatchReader(PcapFormatConfig config,
 EasySubScan scan,
 FileSchemaNegotiator negotiator)

Method Details

next

public boolean next()

The default of the `stat` parameter is false, which means that the packet data is parsed and returned, but if true, will return the statistics data about the each pcapng file only (consist of the information about collect devices and the summary of the packet data above). In addition, a pcapng file contains a single Section Header Block (SHB), a single Interface Description Block (IDB) and a few Enhanced Packet Blocks (EPB).

 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 | SHB | IDB | EPB | EPB |    ...    | EPB |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 

https://pcapng.github.io/pcapng/draft-tuexen-opsawg-pcapng.html#name-physical-file-layout

Specified by:

next in interface ManagedReader

Returns:

true if more data may be available (and so next() should be called again, false to indicate that EOF was reached

close

public void close()

Description copied from interface: ManagedReader

Release resources. Called just after a failure, when the scanner is cancelled, or after next() returns EOF. Release all resources and close files. Guaranteed to be called if open() returns normally; will not be called if open() throws an exception.

Specified by:

close in interface ManagedReader