Package org.apache.bookkeeper.mledger.offload.jcloud.impl

Class OffloadIndexBlockV2Impl

java.lang.Object

org.apache.bookkeeper.mledger.offload.jcloud.impl.OffloadIndexBlockV2Impl

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, OffloadIndexBlockV2

public class OffloadIndexBlockV2Impl
extends java.lang.Object
implements OffloadIndexBlockV2

Method Summary

Modifier and Type	Method	Description
void	close()
static OffloadIndexBlockV2Impl	get(int magic, java.io.DataInputStream stream)
static OffloadIndexBlockV2Impl	get(java.util.Map<java.lang.Long,org.apache.bookkeeper.mledger.proto.MLDataFormats.ManagedLedgerInfo.LedgerInfo> metadata, long dataObjectLength, long dataHeaderLength, java.util.Map<java.lang.Long,java.util.List<OffloadIndexEntryImpl>> entries)
long	getDataBlockHeaderLength()	Get the length of the header in the blocks in the data object.
long	getDataObjectLength()	Get the total size of the data object.
int	getEntryCount()	Get the entry count that contained in this index Block.
OffloadIndexEntry	getIndexEntryForEntry(long ledgerId, long messageEntryId)	Get the related OffloadIndexEntry that contains the given messageEntryId.
static int	getIndexMagicWord()
org.apache.bookkeeper.client.api.LedgerMetadata	getLedgerMetadata(long ledgerId)	Get LedgerMetadata.
long	getStartEntryId(long ledgerId)
void	recycle()
OffloadIndexBlock.IndexInputStream	toStream()	Get the content of the index block as InputStream.

Methods inherited from class java.lang.Object

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

Method Detail

get

public static OffloadIndexBlockV2Impl get(java.util.Map<java.lang.Long,org.apache.bookkeeper.mledger.proto.MLDataFormats.ManagedLedgerInfo.LedgerInfo> metadata,
                                          long dataObjectLength,
                                          long dataHeaderLength,
                                          java.util.Map<java.lang.Long,java.util.List<OffloadIndexEntryImpl>> entries)

get

public static OffloadIndexBlockV2Impl get(int magic,
                                          java.io.DataInputStream stream)
                                   throws java.io.IOException

Throws:

java.io.IOException

recycle

public void recycle()

getIndexEntryForEntry

public OffloadIndexEntry getIndexEntryForEntry(long ledgerId,
                                               long messageEntryId)
                                        throws java.io.IOException

Description copied from interface: OffloadIndexBlockV2

Get the related OffloadIndexEntry that contains the given messageEntryId.

Specified by:

getIndexEntryForEntry in interface OffloadIndexBlockV2

messageEntryId - the entry id of message

Returns:

the offload index entry

Throws:

java.io.IOException

getStartEntryId

public long getStartEntryId(long ledgerId)

Specified by:

getStartEntryId in interface OffloadIndexBlockV2

getEntryCount

public int getEntryCount()

Description copied from interface: OffloadIndexBlockV2

Get the entry count that contained in this index Block.

Specified by:

getEntryCount in interface OffloadIndexBlockV2

getLedgerMetadata

public org.apache.bookkeeper.client.api.LedgerMetadata getLedgerMetadata(long ledgerId)

Description copied from interface: OffloadIndexBlockV2

Get LedgerMetadata.

Specified by:

getLedgerMetadata in interface OffloadIndexBlockV2

Returns:

getDataObjectLength

public long getDataObjectLength()

Description copied from interface: OffloadIndexBlockV2

Get the total size of the data object.

Specified by:

getDataObjectLength in interface OffloadIndexBlockV2

getDataBlockHeaderLength

public long getDataBlockHeaderLength()

Description copied from interface: OffloadIndexBlockV2

Get the length of the header in the blocks in the data object.

Specified by:

getDataBlockHeaderLength in interface OffloadIndexBlockV2

toStream

public OffloadIndexBlock.IndexInputStream toStream()
                                            throws java.io.IOException

Get the content of the index block as InputStream. Read out in format: | index_magic_header | index_block_len | data_object_len | data_header_len | | index_entry_count | segment_metadata_len | segment metadata | index entries... |

Specified by:

toStream in interface OffloadIndexBlockV2

Throws:

java.io.IOException

getIndexMagicWord

public static int getIndexMagicWord()

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable