Class PackBitmapIndexBuilder
java.lang.Object
org.eclipse.jgit.internal.storage.file.PackBitmapIndex
org.eclipse.jgit.internal.storage.file.BasePackBitmapIndex
org.eclipse.jgit.internal.storage.file.PackBitmapIndexBuilder
Helper for constructing
PackBitmapIndex
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprivate static final class
static final class
Data object for the on disk representation of a bitmap entry.Nested classes/interfaces inherited from class org.eclipse.jgit.internal.storage.file.BasePackBitmapIndex
BasePackBitmapIndex.StoredBitmap
Nested classes/interfaces inherited from class org.eclipse.jgit.internal.storage.file.PackBitmapIndex
PackBitmapIndex.SupplierWithIOException<T>
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate List<PackBitmapIndexBuilder.StoredEntry>
private final LinkedList<BasePackBitmapIndex.StoredBitmap>
private final com.googlecode.javaewah.EWAHCompressedBitmap
private final BlockList<PackBitmapIndexBuilder.PositionEntry>
private final com.googlecode.javaewah.EWAHCompressedBitmap
private static final int
(package private) final ObjectIdOwnerMap<PackBitmapIndexBuilder.PositionEntry>
private final com.googlecode.javaewah.EWAHCompressedBitmap
private final com.googlecode.javaewah.EWAHCompressedBitmap
Fields inherited from class org.eclipse.jgit.internal.storage.file.PackBitmapIndex
FLAG_REUSE, packChecksum
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Constructor Summary
ConstructorsConstructorDescriptionPackBitmapIndexBuilder
(List<ObjectToPack> objects) Creates a PackBitmapIndex used for building the contents of an index file. -
Method Summary
Modifier and TypeMethodDescriptionvoid
addBitmap
(AnyObjectId objectId, com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int flags) Stores the bitmap for the objectId.void
addBitmap
(AnyObjectId objectId, BitmapIndex.Bitmap bitmap, int flags) Stores the bitmap for the objectId.int
findPosition
(AnyObjectId objectId) Finds the position in the bitmap of the object.generateStoredEntry
(BasePackBitmapIndex.StoredBitmap bitmapToWrite) int
Returns the number of bitmaps in this bitmap index.com.googlecode.javaewah.EWAHCompressedBitmap
getBlobs()
Get the blob object bitmap.com.googlecode.javaewah.EWAHCompressedBitmap
Get the commit object bitmap.Get list of xor compressed entries that need to be written.getObject
(int position) Get the object at the bitmap position.int
Obtain the total number of objects described by this index.Get set of objects included in the pack.int
Get the index storage options.com.googlecode.javaewah.EWAHCompressedBitmap
getTags()
Get the tag object bitmap.com.googlecode.javaewah.EWAHCompressedBitmap
getTrees()
Get the tree object bitmap.com.googlecode.javaewah.EWAHCompressedBitmap
ofObjectType
(com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int type) Returns a bitmap containing positions for objects that have the given Git type.void
processBitmapForWrite
(BitmapCommit c, BitmapIndex.Bitmap bitmap, int flags) Processes a commit and prepares its bitmap to write to the bitmap index file.void
resetBitmaps
(int size) Remove all the bitmaps entries added.private static void
sortByOffsetAndIndex
(BlockList<PackBitmapIndexBuilder.PositionEntry> byOffset, ObjectIdOwnerMap<PackBitmapIndexBuilder.PositionEntry> positionEntries, List<ObjectToPack> entries) Methods inherited from class org.eclipse.jgit.internal.storage.file.BasePackBitmapIndex
getBitmap, getBitmaps
Methods inherited from class org.eclipse.jgit.internal.storage.file.PackBitmapIndex
open, read, read
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Field Details
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MAX_XOR_OFFSET_SEARCH
private static final int MAX_XOR_OFFSET_SEARCH- See Also:
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commits
private final com.googlecode.javaewah.EWAHCompressedBitmap commits -
trees
private final com.googlecode.javaewah.EWAHCompressedBitmap trees -
blobs
private final com.googlecode.javaewah.EWAHCompressedBitmap blobs -
tags
private final com.googlecode.javaewah.EWAHCompressedBitmap tags -
byOffset
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bitmapsToWriteXorBuffer
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bitmapsToWrite
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positionEntries
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Constructor Details
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PackBitmapIndexBuilder
Creates a PackBitmapIndex used for building the contents of an index file.- Parameters:
objects
- objects sorted by name. The list must be initially sorted by ObjectId (name); it will be resorted in place.
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Method Details
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sortByOffsetAndIndex
private static void sortByOffsetAndIndex(BlockList<PackBitmapIndexBuilder.PositionEntry> byOffset, ObjectIdOwnerMap<PackBitmapIndexBuilder.PositionEntry> positionEntries, List<ObjectToPack> entries) -
getObjectSet
Get set of objects included in the pack.- Returns:
- set of objects included in the pack.
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addBitmap
Stores the bitmap for the objectId.- Parameters:
objectId
- the object id key for the bitmap.bitmap
- the bitmapflags
- the flags to be stored with the bitmap
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processBitmapForWrite
Processes a commit and prepares its bitmap to write to the bitmap index file.- Parameters:
c
- the commit corresponds to the bitmap.bitmap
- the bitmap to be written.flags
- the flags of the commit.
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generateStoredEntry
private PackBitmapIndexBuilder.StoredEntry generateStoredEntry(BasePackBitmapIndex.StoredBitmap bitmapToWrite) -
addBitmap
public void addBitmap(AnyObjectId objectId, com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int flags) Stores the bitmap for the objectId.- Parameters:
objectId
- the object id key for the bitmap.bitmap
- the bitmapflags
- the flags to be stored with the bitmap
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ofObjectType
public com.googlecode.javaewah.EWAHCompressedBitmap ofObjectType(com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int type) Returns a bitmap containing positions for objects that have the given Git type.- Specified by:
ofObjectType
in classPackBitmapIndex
- Parameters:
bitmap
- the object bitmap.type
- the Git type.- Returns:
- the object bitmap with only objects of the Git type.
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findPosition
Finds the position in the bitmap of the object.- Specified by:
findPosition
in classPackBitmapIndex
- Parameters:
objectId
- the id for which the bitmap position will be found.- Returns:
- the bitmap id or -1 if the object was not found.
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getObject
Get the object at the bitmap position.- Specified by:
getObject
in classPackBitmapIndex
- Parameters:
position
- the id for which the object will be found.- Returns:
- the ObjectId.
- Throws:
IllegalArgumentException
- when the item is not found.
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getCommits
public com.googlecode.javaewah.EWAHCompressedBitmap getCommits()Get the commit object bitmap.- Returns:
- the commit object bitmap.
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getTrees
public com.googlecode.javaewah.EWAHCompressedBitmap getTrees()Get the tree object bitmap.- Returns:
- the tree object bitmap.
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getBlobs
public com.googlecode.javaewah.EWAHCompressedBitmap getBlobs()Get the blob object bitmap.- Returns:
- the blob object bitmap.
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getTags
public com.googlecode.javaewah.EWAHCompressedBitmap getTags()Get the tag object bitmap.- Returns:
- the tag object bitmap.
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getOptions
public int getOptions()Get the index storage options.- Returns:
- the index storage options.
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getBitmapCount
public int getBitmapCount()Returns the number of bitmaps in this bitmap index.- Specified by:
getBitmapCount
in classPackBitmapIndex
- Returns:
- the number of bitmaps in this bitmap index.
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resetBitmaps
public void resetBitmaps(int size) Remove all the bitmaps entries added.- Parameters:
size
- the expected number of bitmap entries to be written.
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getObjectCount
public int getObjectCount()Obtain the total number of objects described by this index.getObjectCount() - 1
is the largest bit that will be set in a bitmap.- Specified by:
getObjectCount
in classPackBitmapIndex
- Returns:
- number of objects in this index, and likewise in the associated pack that this index was generated from.
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getCompressedBitmaps
Get list of xor compressed entries that need to be written.- Returns:
- a list of the xor compressed entries.
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