Class FileBlobStore
java.lang.Object
org.apache.jackrabbit.oak.spi.blob.AbstractBlobStore
org.apache.jackrabbit.oak.spi.blob.FileBlobStore
- All Implemented Interfaces:
AutoCloseable
,Cache.Backend<AbstractBlobStore.BlockId,
,AbstractBlobStore.Data> BlobStore
,GarbageCollectableBlobStore
A file blob store.
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.jackrabbit.oak.spi.blob.AbstractBlobStore
AbstractBlobStore.BlockId, AbstractBlobStore.Data
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Field Summary
Fields inherited from class org.apache.jackrabbit.oak.spi.blob.AbstractBlobStore
BLOCK_SIZE_LIMIT, HASH_ALGORITHM, inUse, TYPE_DATA, TYPE_HASH
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Clear the cache.long
countDeleteChunks
(List<String> chunkIds, long maxLastModifiedTime) Deletes the blobs with the given ids.getAllChunkIds
(long maxLastModifiedTime) Gets all the identifiers.protected boolean
protected void
protected byte[]
Load the block from the storage backend.void
Start the mark phase.protected void
storeBlock
(byte[] digest, int level, byte[] data) Store a block of data.int
sweep()
Remove all unused blocks.Write a blob from a temporary file.Methods inherited from class org.apache.jackrabbit.oak.spi.blob.AbstractBlobStore
clearInUse, close, deleteChunks, getBlobId, getBlobLength, getBlockSize, getBlockSizeMin, getInputStream, getOrCreateReferenceKey, getReference, getStatsCollector, load, mark, markInUse, readBlob, resolveChunks, setBlockSize, setBlockSizeMin, setReferenceKey, setReferenceKeyEncoded, setReferenceKeyPlainText, setStatsCollector, usesBlobId, writeBlob, writeBlob
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Constructor Details
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FileBlobStore
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Method Details
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writeBlob
Description copied from interface:GarbageCollectableBlobStore
Write a blob from a temporary file. The temporary file is removed afterwards. A file based blob stores might simply rename the file, so that no additional writes are necessary.- Specified by:
writeBlob
in interfaceGarbageCollectableBlobStore
- Overrides:
writeBlob
in classAbstractBlobStore
- Parameters:
tempFilePath
- the temporary file name- Returns:
- the blob id
- Throws:
IOException
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storeBlock
Description copied from class:AbstractBlobStore
Store a block of data.- Specified by:
storeBlock
in classAbstractBlobStore
- Parameters:
digest
- the content hash (32 bytes)level
- the indirection level (0 is for user data, 1 is a list of digests that point to user data, 2 is a list of digests that point to digests, and so on). This parameter is for informational use only, and it is not required to store it unless that's easy to achievedata
- the data to be stored (the number of bytes is at most the block size)- Throws:
IOException
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readBlockFromBackend
Description copied from class:AbstractBlobStore
Load the block from the storage backend. Returns null if the block was not found.- Specified by:
readBlockFromBackend
in classAbstractBlobStore
- Parameters:
id
- the block id- Returns:
- the block data, or null
- Throws:
IOException
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startMark
Description copied from interface:GarbageCollectableBlobStore
Start the mark phase.- Specified by:
startMark
in interfaceGarbageCollectableBlobStore
- Specified by:
startMark
in classAbstractBlobStore
- Throws:
IOException
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isMarkEnabled
protected boolean isMarkEnabled()- Specified by:
isMarkEnabled
in classAbstractBlobStore
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mark
- Specified by:
mark
in classAbstractBlobStore
- Throws:
IOException
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sweep
Description copied from interface:GarbageCollectableBlobStore
Remove all unused blocks.- Specified by:
sweep
in interfaceGarbageCollectableBlobStore
- Specified by:
sweep
in classAbstractBlobStore
- Returns:
- the number of removed blocks
- Throws:
IOException
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countDeleteChunks
Description copied from interface:GarbageCollectableBlobStore
Deletes the blobs with the given ids.- Parameters:
chunkIds
- the chunk idsmaxLastModifiedTime
- the max last modified time to consider for retrieval, with the special value '0' meaning no filtering by time- Returns:
- long the count of successful deletions
- Throws:
Exception
- the exception
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getAllChunkIds
Description copied from interface:GarbageCollectableBlobStore
Gets all the identifiers.- Parameters:
maxLastModifiedTime
- the max last modified time to consider for retrieval, with the special value '0' meaning no filtering by time- Returns:
- the identifiers
- Throws:
Exception
- the exception
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clearCache
public void clearCache()Description copied from interface:GarbageCollectableBlobStore
Clear the cache.
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