Package org.apache.jackrabbit.oak.segment.aws

Class AwsSegmentArchiveReader

java.lang.Object

org.apache.jackrabbit.oak.segment.remote.AbstractRemoteSegmentArchiveReader

org.apache.jackrabbit.oak.segment.aws.AwsSegmentArchiveReader

All Implemented Interfaces:

Closeable, AutoCloseable, SegmentArchiveReader

public class AwsSegmentArchiveReader
extends AbstractRemoteSegmentArchiveReader

Field Summary

Fields inherited from class org.apache.jackrabbit.oak.segment.remote.AbstractRemoteSegmentArchiveReader

index, ioMonitor

Method Summary

Modifier and Type	Method	Description
protected File	archivePathAsFile()	Returns the decoded file component of this archive.
protected long	computeArchiveIndexAndLength()	Populates the archive index, summing up each entry's length.
protected Buffer	doReadDataFile(String extension)	Reads a data file inside the archive.
protected void	doReadSegmentToBuffer(String segmentFileName, Buffer buffer)	Reads the segment from the remote storage.
String	getName()	Get the name of the archive.
long	length()	Get the current length of the archive.

Methods inherited from class org.apache.jackrabbit.oak.segment.remote.AbstractRemoteSegmentArchiveReader

close, containsSegment, getBinaryReferences, getEntrySize, getGraph, isRemote, listSegments, readSegment

Methods inherited from class java.lang.Object

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

Method Detail

length

public long length()

Description copied from interface: SegmentArchiveReader

Get the current length of the archive.

Returns:

length of the archive, in bytes

getName

public String getName()

Description copied from interface: SegmentArchiveReader

Get the name of the archive.

Returns:

archive name

computeArchiveIndexAndLength

protected long computeArchiveIndexAndLength()
                                     throws IOException

Description copied from class: AbstractRemoteSegmentArchiveReader

Populates the archive index, summing up each entry's length.

Specified by:

computeArchiveIndexAndLength in class AbstractRemoteSegmentArchiveReader

Returns:

length, the total length of the archive

Throws:

IOException

doReadSegmentToBuffer

protected void doReadSegmentToBuffer(String segmentFileName,
                                     Buffer buffer)
                              throws IOException

Description copied from class: AbstractRemoteSegmentArchiveReader

Reads the segment from the remote storage.

Specified by:

doReadSegmentToBuffer in class AbstractRemoteSegmentArchiveReader

Parameters:

segmentFileName - , the name of the segment (msb + lsb) prefixed by its position in the archive

buffer - , the buffer to which to read

Throws:

IOException

doReadDataFile

protected Buffer doReadDataFile(String extension)
                         throws IOException

Description copied from class: AbstractRemoteSegmentArchiveReader

Reads a data file inside the archive. This entry is not a segment. Its full name is given by archive name + extension.

Specified by:

doReadDataFile in class AbstractRemoteSegmentArchiveReader

Parameters:

extension - , extension of the file

Returns:

the buffer containing the data file bytes

Throws:

IOException

archivePathAsFile

protected File archivePathAsFile()

Description copied from class: AbstractRemoteSegmentArchiveReader

Returns the decoded file component of this archive.

Specified by:

archivePathAsFile in class AbstractRemoteSegmentArchiveReader

Returns:

the decoded file component of this archive.