Modifier and Type	Class and Description
private class	DfsInserter.PackStream
private class	DfsInserter.ReadBackStream
private class	DfsInserter.Reader
private class	DfsInserter.StreamLoader

Modifier and Type	Field and Description
pack-priv DfsBlockCache	cache
private boolean	checkExisting
pack-priv int	compression
pack-priv final DfsObjDatabase	db
private static final int	INDEX_VERSION Always produce version 2 indexes, to get CRC data.
private final int	minBytesForObjectSizeIndex
pack-priv List<PackedObjectInfo>	objectList
pack-priv ObjectIdOwnerMap<PackedObjectInfo>	objectMap
pack-priv DfsPackDescription	packDsc
pack-priv DfsStreamKey	packKey
pack-priv DfsInserter.PackStream	packOut
private boolean	rollback

Access	Constructor and Description
protected	DfsInserter(DfsObjDatabase database the inserter writes to. db) Initialize a new inserter.

Method Summary

Modifier and Type	Method and Description
private long	beginObject(int type, long len)
private void	beginPack()
public void	checkExisting(boolean if `false`, will write out possibly-duplicate objects without first checking whether they exist in the repo; default is true. check) Check existence
private void	clear()
public void	close() Implements abstract org.eclipse.jgit.lib.ObjectInserter.close. Implements java.lang.AutoCloseable.close. Closes this resource, relinquishing any underlying resources.
private ObjectId	endObject(ObjectId id, long offset, long inflatedSize, int type)
public void	flush() Implements abstract org.eclipse.jgit.lib.ObjectInserter.flush. Make all inserted objects visible.
private static void	index(OutputStream out, byte[] packHash, List<PackedObjectInfo> list)
public ObjectId	insert(int type code of the object to store. type, byte[] complete content of the object. data, int first position within `data`. off, int number of bytes to copy from `data`. len) Overrides org.eclipse.jgit.lib.ObjectInserter.insert. Insert a single object into the store, returning its unique name.
public ObjectId	insert(int type code of the object to store. type, long number of bytes to copy from `in`. len, InputStream stream providing the object content. The caller is responsible for closing the stream. in) Implements abstract org.eclipse.jgit.lib.ObjectInserter.insert. Insert a single object into the store, returning its unique name.
private byte[]	insertBuffer(long len)
private TemporaryBuffer.Heap	maybeGetTemporaryBuffer(List<PackedObjectInfo> list)
public DfsPackParser	newPackParser(InputStream the input stream. The stream is not closed by the parser, and must instead be closed by the caller once parsing is complete. in) Implements abstract org.eclipse.jgit.lib.ObjectInserter.newPackParser. Initialize a parser to read from a pack formatted stream.
public ObjectReader	newReader() Implements abstract org.eclipse.jgit.lib.ObjectInserter.newReader. Open a reader for objects that may have been written by this inserter.
pack-priv void	setCompressionLevel(int compression)
private void	sortObjectsById()
pack-priv void	writeObjectSizeIndex(DfsPackDescription pack, List<PackedObjectInfo> packedObjs)
pack-priv PackIndex	writePackIndex(DfsPackDescription pack, byte[] packHash, List<PackedObjectInfo> list)

Inherited from org.eclipse.jgit.lib.ObjectInserter:: buffer digest idFor idFor idFor idFor insert insert insert insert

Field Detail

cache	back to summary
pack-priv DfsBlockCache cache

checkExisting	back to summary
private boolean checkExisting

compression	back to summary
pack-priv int compression

db	back to summary
pack-priv final DfsObjDatabase db

INDEX_VERSION	back to summary
private static final int INDEX_VERSION Always produce version 2 indexes, to get CRC data.

minBytesForObjectSizeIndex	back to summary
private final int minBytesForObjectSizeIndex

objectList	back to summary
pack-priv List<PackedObjectInfo> objectList

objectMap	back to summary
pack-priv ObjectIdOwnerMap<PackedObjectInfo> objectMap

packDsc	back to summary
pack-priv DfsPackDescription packDsc

packKey	back to summary
pack-priv DfsStreamKey packKey

packOut	back to summary
pack-priv DfsInserter.PackStream packOut

rollback	back to summary
private boolean rollback

DfsInserter	back to summary
protected DfsInserter(DfsObjDatabase db) Initialize a new inserter. Parameters db:DfsObjDatabase database the inserter writes to.

Method Detail

beginObject	back to summary
private long beginObject(int type, long len) throws IOException

beginPack	back to summary
private void beginPack() throws IOException

checkExisting back to summary

checkExisting	back to summary
public void checkExisting(boolean check) Check existence Parameters check:boolean if `false`, will write out possibly-duplicate objects without first checking whether they exist in the repo; default is true.

public void checkExisting(boolean check)

Check existence

Parameters

check:boolean: if false, will write out possibly-duplicate objects without first checking whether they exist in the repo; default is true.

clear	back to summary
private void clear()

close back to summary

close	back to summary
public void close() Implements abstract org.eclipse.jgit.lib.ObjectInserter.close. Implements java.lang.AutoCloseable.close. Doc from org.eclipse.jgit.lib.ObjectInserter.close. Closes this resource, relinquishing any underlying resources. This method is invoked automatically on objects managed by the `try`-with-resources statement. Release any resources used by this inserter. An inserter that has been released can be used again, but may need to be released after the subsequent usage. Annotations @Override

public void close()

Implements abstract org.eclipse.jgit.lib.ObjectInserter.close.

Implements java.lang.AutoCloseable.close.

Doc from org.eclipse.jgit.lib.ObjectInserter.close.

Closes this resource, relinquishing any underlying resources. This method is invoked automatically on objects managed by the try-with-resources statement.

Release any resources used by this inserter.

An inserter that has been released can be used again, but may need to be released after the subsequent usage.

Annotations

@Override

endObject	back to summary
private ObjectId endObject(ObjectId id, long offset, long inflatedSize, int type)

flush	back to summary
public void flush() throws IOException Implements abstract org.eclipse.jgit.lib.ObjectInserter.flush. Doc from org.eclipse.jgit.lib.ObjectInserter.flush. Make all inserted objects visible. The flush may take some period of time to make the objects available to other threads. Annotations @Override Exceptions IOException: the flush could not be completed; objects inserted thus far are in an indeterminate state.

flush

back to summary

public void flush() throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectInserter.flush.

Doc from org.eclipse.jgit.lib.ObjectInserter.flush.

Make all inserted objects visible.

The flush may take some period of time to make the objects available to other threads.

Annotations

@Override

Exceptions

IOException:: the flush could not be completed; objects inserted thus far are in an indeterminate state.

index	back to summary
private static void index(OutputStream out, byte[] packHash, List<PackedObjectInfo> list) throws IOException

insert back to summary

insert	back to summary
public ObjectId insert(int type, byte[] data, int off, int len) throws IOException Overrides org.eclipse.jgit.lib.ObjectInserter.insert. Doc from org.eclipse.jgit.lib.ObjectInserter.insert. Insert a single object into the store, returning its unique name. Parameters type:int type code of the object to store. data:byte[] complete content of the object. off:int first position within `data`. len:int number of bytes to copy from `data`. Returns:ObjectId the name of the object. Annotations @Override Exceptions IOException: the object could not be stored.

public ObjectId insert(int type, byte[] data, int off, int len) throws IOException

Overrides org.eclipse.jgit.lib.ObjectInserter.insert.

Doc from org.eclipse.jgit.lib.ObjectInserter.insert.

Insert a single object into the store, returning its unique name.

Parameters

type:int: type code of the object to store.
data:byte[]: complete content of the object.
off:int: first position within data.
len:int: number of bytes to copy from data.

Returns:ObjectId

the name of the object.

Annotations

@Override

Exceptions

IOException:: the object could not be stored.

insert back to summary

insert	back to summary
public ObjectId insert(int type, long len, InputStream in) throws IOException Implements abstract org.eclipse.jgit.lib.ObjectInserter.insert. Doc from org.eclipse.jgit.lib.ObjectInserter.insert. Insert a single object into the store, returning its unique name. Parameters type:int type code of the object to store. len:long number of bytes to copy from `in`. in:InputStream stream providing the object content. The caller is responsible for closing the stream. Returns:ObjectId the name of the object. Annotations @Override Exceptions IOException: the object could not be stored, or the source stream could not be read.

public ObjectId insert(int type, long len, InputStream in) throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectInserter.insert.

Doc from org.eclipse.jgit.lib.ObjectInserter.insert.

Insert a single object into the store, returning its unique name.

Parameters

type:int: type code of the object to store.
len:long: number of bytes to copy from in.
in:InputStream: stream providing the object content. The caller is responsible for closing the stream.

Returns:ObjectId

the name of the object.

Annotations

@Override

Exceptions

IOException:: the object could not be stored, or the source stream could not be read.

insertBuffer	back to summary
private byte[] insertBuffer(long len)

maybeGetTemporaryBuffer	back to summary
private TemporaryBuffer.Heap maybeGetTemporaryBuffer(List<PackedObjectInfo> list) Annotations @Nullable

newPackParser	back to summary
public DfsPackParser newPackParser(InputStream in) throws IOException Implements abstract org.eclipse.jgit.lib.ObjectInserter.newPackParser. Doc from org.eclipse.jgit.lib.ObjectInserter.newPackParser. Initialize a parser to read from a pack formatted stream. Parameters in:InputStream the input stream. The stream is not closed by the parser, and must instead be closed by the caller once parsing is complete. Returns:DfsPackParser the pack parser. Annotations @Override Exceptions IOException: the parser instance, which can be configured and then used to parse objects into the ObjectDatabase.

newPackParser

back to summary

public DfsPackParser newPackParser(InputStream in) throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectInserter.newPackParser.

Doc from org.eclipse.jgit.lib.ObjectInserter.newPackParser.

Initialize a parser to read from a pack formatted stream.

Parameters

in:InputStream: the input stream. The stream is not closed by the parser, and must instead be closed by the caller once parsing is complete.

Returns:DfsPackParser

the pack parser.

Annotations

@Override

Exceptions

IOException:: the parser instance, which can be configured and then used to parse objects into the ObjectDatabase.

newReader back to summary

newReader	back to summary
public ObjectReader newReader() Implements abstract org.eclipse.jgit.lib.ObjectInserter.newReader. Doc from org.eclipse.jgit.lib.ObjectInserter.newReader. Open a reader for objects that may have been written by this inserter. The returned reader allows the calling thread to read back recently inserted objects without first calling `flush()` to make them visible to the repository. The returned reader should only be used from the same thread as the inserter. Objects written by this inserter may not be visible to `this.newReader().newReader()`. The returned reader should return this inserter instance from `ObjectReader#getCreatedFromInserter()`. Behavior is undefined if an insert method is called on the inserter in the middle of reading from an `ObjectStream` opened from this reader. For example, reading the remainder of the object may fail, or newly written data may even be corrupted. Interleaving whole object reads (including streaming reads) with inserts is fine, just not interleaving streaming partial object reads with inserts. Returns:ObjectReader reader for any object, including an object recently inserted by this inserter since the last flush. Annotations @Override

public ObjectReader newReader()

Implements abstract org.eclipse.jgit.lib.ObjectInserter.newReader.

Doc from org.eclipse.jgit.lib.ObjectInserter.newReader.

Open a reader for objects that may have been written by this inserter.

The returned reader allows the calling thread to read back recently inserted objects without first calling flush() to make them visible to the repository. The returned reader should only be used from the same thread as the inserter. Objects written by this inserter may not be visible to this.newReader().newReader().

The returned reader should return this inserter instance from ObjectReader#getCreatedFromInserter().

Behavior is undefined if an insert method is called on the inserter in the middle of reading from an ObjectStream opened from this reader. For example, reading the remainder of the object may fail, or newly written data may even be corrupted. Interleaving whole object reads (including streaming reads) with inserts is fine, just not interleaving streaming partial object reads with inserts.

Returns:ObjectReader

reader for any object, including an object recently inserted by this inserter since the last flush.

Annotations

@Override

setCompressionLevel	back to summary
pack-priv void setCompressionLevel(int compression)

sortObjectsById	back to summary
private void sortObjectsById()

writeObjectSizeIndex	back to summary
pack-priv void writeObjectSizeIndex(DfsPackDescription pack, List<PackedObjectInfo> packedObjs) throws IOException

writePackIndex	back to summary
pack-priv PackIndex writePackIndex(DfsPackDescription pack, byte[] packHash, List<PackedObjectInfo> list) throws IOException

org.eclipse.jgit.internal.storage.dfs back to summary

private Class DfsInserter.PackStream

Class Inheritance

extends OutputStream

java.lang.Object
java.io.OutputStream
org.eclipse.jgit.internal.storage.dfs.DfsInserter.PackStream

Field Summary

Modifier and Type	Field and Description
private final int	blockSize
pack-priv final DeflaterOutputStream	compress
pack-priv final CRC32	crc32
private byte[]	currBuf
private long	currPos
private int	currPtr
private final Deflater	deflater
pack-priv final byte[]	hdrBuf
private final MessageDigest	md
private final DfsOutputStream	out

Constructor Summary

Access	Constructor and Description
pack-priv	PackStream(DfsOutputStream out)

Method Summary

Modifier and Type	Method and Description
pack-priv void	beginObject(int objectType, long length)
public void	close() Overrides java.io.OutputStream.close. Implements java.io.Closeable.close. Closes this output stream and releases any system resources associated with this stream.
private byte[]	copyOf(byte[] src, int ptr, int cnt)
private int	encodeTypeSize(int type, long rawLength)
private void	flushBlock()
pack-priv long	getCount()
private DfsBlock	getOrLoadBlock(long pos)
pack-priv byte[]	inflate(DfsReader ctx, long pos, int len)
pack-priv int	read(long pos, byte[] dst, int ptr, int cnt)
private int	setInput(long pos, Inflater inf)
private long	toBlockStart(long pos)
public void	write(int the `byte`. b) Implements abstract java.io.OutputStream.write. Writes the specified byte to this output stream.
public void	write(byte[] the data. data, int the start offset in the data. off, int the number of bytes to write. len) Overrides java.io.OutputStream.write. Writes `len` bytes from the specified byte array starting at offset `off` to this output stream.
private void	writeNoHash(byte[] data, int off, int len)
pack-priv byte[]	writePackFooter()

Inherited from java.io.OutputStream:: flush nullOutputStream write

Field Detail

blockSize	back to summary
private final int blockSize

compress	back to summary
pack-priv final DeflaterOutputStream compress

crc32	back to summary
pack-priv final CRC32 crc32

currBuf	back to summary
private byte[] currBuf

currPos	back to summary
private long currPos

currPtr	back to summary
private int currPtr

deflater	back to summary
private final Deflater deflater

hdrBuf	back to summary
pack-priv final byte[] hdrBuf

md	back to summary
private final MessageDigest md

out	back to summary
private final DfsOutputStream out

Constructor Detail

PackStream	back to summary
pack-priv PackStream(DfsOutputStream out)

Method Detail

beginObject	back to summary
pack-priv void beginObject(int objectType, long length) throws IOException

close back to summary

public void close() throws IOException

Overrides java.io.OutputStream.close.

Implements java.io.Closeable.close.

Doc from java.io.OutputStream.close.

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs.

copyOf	back to summary
private byte[] copyOf(byte[] src, int ptr, int cnt)

encodeTypeSize	back to summary
private int encodeTypeSize(int type, long rawLength)

flushBlock	back to summary
private void flushBlock() throws IOException

getCount	back to summary
pack-priv long getCount()

getOrLoadBlock	back to summary
private DfsBlock getOrLoadBlock(long pos) throws IOException

inflate	back to summary
pack-priv byte[] inflate(DfsReader ctx, long pos, int len) throws IOException, DataFormatException

read	back to summary
pack-priv int read(long pos, byte[] dst, int ptr, int cnt) throws IOException

setInput	back to summary
private int setInput(long pos, Inflater inf) throws IOException, DataFormatException

toBlockStart	back to summary
private long toBlockStart(long pos)

write back to summary

public void write(int b) throws IOException

Implements abstract java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Parameters

b:int: the byte.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

write back to summary

public void write(byte[] data, int off, int len) throws IOException

Overrides java.io.OutputStream.write.

Doc from java.io.OutputStream.write.

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Parameters

data:byte[]: the data.
off:int: the start offset in the data.
len:int: the number of bytes to write.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.

writeNoHash	back to summary
private void writeNoHash(byte[] data, int off, int len) throws IOException

writePackFooter	back to summary
pack-priv byte[] writePackFooter() throws IOException

org.eclipse.jgit.internal.storage.dfs back to summary

private final Class DfsInserter.ReadBackStream

Class Inheritance

extends InputStream

java.lang.Object
java.io.InputStream
org.eclipse.jgit.internal.storage.dfs.DfsInserter.ReadBackStream

Field Summary

Modifier and Type	Field and Description
private long	pos

Constructor Summary

Access	Constructor and Description
pack-priv	ReadBackStream(long offset)

Method Summary

Modifier and Type	Method and Description
public int	read() Implements abstract java.io.InputStream.read. Reads the next byte of data from the input stream.
public int	read(byte[] the buffer into which the data is read. buf, int the start offset in array `b` at which the data is written. ptr, int the maximum number of bytes to read. len) Overrides java.io.InputStream.read. Reads up to `len` bytes of data from the input stream into an array of bytes.

Inherited from java.io.InputStream:: available close mark markSupported nullInputStream read readAllBytes readNBytes readNBytes reset skip skipNBytes transferTo

Field Detail

pos	back to summary
private long pos

Constructor Detail

ReadBackStream	back to summary
pack-priv ReadBackStream(long offset)

Method Detail

read back to summary

public int read() throws IOException

Implements abstract java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Returns:int

the next byte of data, or -1 if the end of the stream is reached.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs.

read back to summary

public int read(byte[] buf, int ptr, int len) throws IOException

Overrides java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads up to len bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len bytes, but a smaller number may be read. The number of bytes actually read is returned as an integer.

This method blocks until input data is available, end of file is detected, or an exception is thrown.

If len is zero, then no bytes are read and 0 is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at end of file, the value -1 is returned; otherwise, at least one byte is read and stored into b.

The first byte read is stored into element b[off], the next one into b[off+1], and so on. The number of bytes read is, at most, equal to len. Let k be the number of bytes actually read; these bytes will be stored in elements b[off] through b[off+k-1], leaving elements b[off+k] through b[off+len-1] unaffected.

In every case, elements b[0] through b[off-1] and elements b[off+len] through b[b.length-1] are unaffected.

Parameters

buf:byte[]: the buffer into which the data is read.
ptr:int: the start offset in array b at which the data is written.
len:int: the maximum number of bytes to read.

Returns:int

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

Exceptions

IOException:: If the first byte cannot be read for any reason other than end of file, or if the input stream has been closed, or if some other I/O error occurs.

org.eclipse.jgit.internal.storage.dfs back to summary

private Class DfsInserter.Reader

Class Inheritance

extends ObjectReader

java.lang.Object
org.eclipse.jgit.lib.ObjectReader
org.eclipse.jgit.internal.storage.dfs.DfsInserter.Reader

Field Summary

Modifier and Type	Field and Description
private final DfsReader	ctx

Inherited from org.eclipse.jgit.lib.ObjectReader:: OBJ_ANY streamFileThreshold

Constructor Summary

Access	Constructor and Description
private	Reader()

Method Summary

Modifier and Type	Method and Description
public void	close() Implements abstract org.eclipse.jgit.lib.ObjectReader.close. Implements java.lang.AutoCloseable.close. Closes this resource, relinquishing any underlying resources.
public ObjectInserter	getCreatedFromInserter() Overrides org.eclipse.jgit.lib.ObjectReader.getCreatedFromInserter. Get the `org.eclipse.jgit.lib.ObjectInserter` from which this reader was created using `inserter.newReader()`
public Set<ObjectId>	getShallowCommits() Implements abstract org.eclipse.jgit.lib.ObjectReader.getShallowCommits. Returns IDs for those commits which should be considered as shallow.
public boolean	has(AnyObjectId identity of the object to test for existence of. objectId) Overrides org.eclipse.jgit.lib.ObjectReader.has. Does the requested object exist in this database?
private byte[]	inflate(PackedObjectInfo obj, long zpos, int sz)
public ObjectReader	newReader() Implements abstract org.eclipse.jgit.lib.ObjectReader.newReader. Construct a new reader from the same data.
public ObjectLoader	open(AnyObjectId identity of the object to open. objectId, int hint about the type of object being requested, e.g. `org.eclipse.jgit.lib.Constants#OBJ_BLOB`; `OBJ_ANY` if the object type is not known, or does not matter to the caller. typeHint) Implements abstract org.eclipse.jgit.lib.ObjectReader.open. Open an object from this database.
public Collection<ObjectId>	resolve(AbbreviatedObjectId abbreviated id to resolve to a complete identity. The abbreviation must have a length of at least 2. id) Implements abstract org.eclipse.jgit.lib.ObjectReader.resolve. Resolve an abbreviated ObjectId to its full form.

Inherited from org.eclipse.jgit.lib.ObjectReader:: abbreviate abbreviate createObjectReachabilityChecker createReachabilityChecker getBitmapIndex getCommitGraph getObjectSize getObjectSize getStreamFileThreshold has isNotLargerThan open open setAvoidUnreachableObjects setStreamFileThreshold

Field Detail

ctx	back to summary
private final DfsReader ctx

Constructor Detail

Reader	back to summary
private Reader()

Method Detail

close back to summary

public void close()

Implements abstract org.eclipse.jgit.lib.ObjectReader.close.

Implements java.lang.AutoCloseable.close.

Doc from org.eclipse.jgit.lib.ObjectReader.close.

Closes this resource, relinquishing any underlying resources. This method is invoked automatically on objects managed by the try-with-resources statement.

Release any resources used by this reader.

A reader that has been released can be used again, but may need to be released after the subsequent usage.

Annotations

@Override

getCreatedFromInserter back to summary

public ObjectInserter getCreatedFromInserter()

Overrides org.eclipse.jgit.lib.ObjectReader.getCreatedFromInserter.

Doc from org.eclipse.jgit.lib.ObjectReader.getCreatedFromInserter.

Get the org.eclipse.jgit.lib.ObjectInserter from which this reader was created using inserter.newReader()

Returns:ObjectInserter

the org.eclipse.jgit.lib.ObjectInserter from which this reader was created using inserter.newReader(), or null if this reader was not created from an inserter.

Annotations

@Override

getShallowCommits

back to summary

public Set<ObjectId> getShallowCommits() throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectReader.getShallowCommits.

Doc from org.eclipse.jgit.lib.ObjectReader.getShallowCommits.

Returns IDs for those commits which should be considered as shallow.

Returns:Set<ObjectId>

IDs of shallow commits

Annotations

@Override

Exceptions

IOException:: if an error occurred

has

back to summary

public boolean has(AnyObjectId objectId) throws IOException

Overrides org.eclipse.jgit.lib.ObjectReader.has.

Doc from org.eclipse.jgit.lib.ObjectReader.has.

Does the requested object exist in this database?

Parameters

objectId:AnyObjectId: identity of the object to test for existence of.

Returns:boolean

true if the specified object is stored in this database.

Annotations

@Override

Exceptions

IOException:: the object store cannot be accessed.

inflate	back to summary
private byte[] inflate(PackedObjectInfo obj, long zpos, int sz) throws IOException, CorruptObjectException

newReader

back to summary

public ObjectReader newReader()

Implements abstract org.eclipse.jgit.lib.ObjectReader.newReader.

Doc from org.eclipse.jgit.lib.ObjectReader.newReader.

Construct a new reader from the same data.

Applications can use this method to build a new reader from the same data source, but for an different thread.

Returns:ObjectReader

a brand new reader, using the same data source.

Annotations

@Override

open back to summary

public ObjectLoader open(AnyObjectId objectId, int typeHint) throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectReader.open.

Doc from org.eclipse.jgit.lib.ObjectReader.open.

Open an object from this database.

Parameters

objectId:AnyObjectId: identity of the object to open.
typeHint:int: hint about the type of object being requested, e.g. org.eclipse.jgit.lib.Constants#OBJ_BLOB; OBJ_ANY if the object type is not known, or does not matter to the caller.

Returns:ObjectLoader

a org.eclipse.jgit.lib.ObjectLoader for accessing the object.

Annotations

@Override

Exceptions

IOException:: the object store cannot be accessed.

resolve

back to summary

public Collection<ObjectId> resolve(AbbreviatedObjectId id) throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectReader.resolve.

Doc from org.eclipse.jgit.lib.ObjectReader.resolve.

Resolve an abbreviated ObjectId to its full form. This method searches for an ObjectId that begins with the abbreviation, and returns at least some matching candidates. If the returned collection is empty, no objects start with this abbreviation. The abbreviation doesn't belong to this repository, or the repository lacks the necessary objects to complete it. If the collection contains exactly one member, the abbreviation is (currently) unique within this database. There is a reasonably high probability that the returned id is what was previously abbreviated. If the collection contains 2 or more members, the abbreviation is not unique. In this case the implementation is only required to return at least 2 candidates to signal the abbreviation has conflicts. User friendly implementations should return as many candidates as reasonably possible, as the caller may be able to disambiguate further based on context. However since databases can be very large (e.g. 10 million objects) returning 625,000 candidates for the abbreviation "0" is simply unreasonable, so implementors should draw the line at around 256 matches.

Parameters

id:AbbreviatedObjectId: abbreviated id to resolve to a complete identity. The abbreviation must have a length of at least 2.

Returns:Collection<ObjectId>

candidates that begin with the abbreviated identity.

Annotations

@Override

Exceptions

IOException:: the object store cannot be read.

org.eclipse.jgit.internal.storage.dfs back to summary

private Class DfsInserter.StreamLoader

Class Inheritance

extends ObjectLoader

java.lang.Object
org.eclipse.jgit.lib.ObjectLoader
org.eclipse.jgit.internal.storage.dfs.DfsInserter.StreamLoader

Field Summary

Modifier and Type	Field and Description
private final ObjectId	id
private final long	pos
private final long	size
private final DfsStreamKey	srcPack
private final int	type

Constructor Summary

Access	Constructor and Description
pack-priv	StreamLoader(ObjectId id, int type, long sz, DfsStreamKey key, long pos)

Method Summary

Modifier and Type	Method and Description
public byte[]	getCachedBytes() Implements abstract org.eclipse.jgit.lib.ObjectLoader.getCachedBytes. Obtain a reference to the (possibly cached) bytes of this object.
public long	getSize() Implements abstract org.eclipse.jgit.lib.ObjectLoader.getSize. Get size of object in bytes
public int	getType() Implements abstract org.eclipse.jgit.lib.ObjectLoader.getType. Get Git in pack object type
public boolean	isLarge() Overrides org.eclipse.jgit.lib.ObjectLoader.isLarge. Whether this object is too large to obtain as a byte array.
public ObjectStream	openStream() Implements abstract org.eclipse.jgit.lib.ObjectLoader.openStream. Obtain an input stream to read this object's data.

Inherited from org.eclipse.jgit.lib.ObjectLoader:: copyTo getBytes getBytes getCachedBytes

Field Detail

id	back to summary
private final ObjectId id

pos	back to summary
private final long pos

size	back to summary
private final long size

srcPack	back to summary
private final DfsStreamKey srcPack

type	back to summary
private final int type

Constructor Detail

StreamLoader	back to summary
pack-priv StreamLoader(ObjectId id, int type, long sz, DfsStreamKey key, long pos)

Method Detail

getCachedBytes back to summary

public byte[] getCachedBytes() throws LargeObjectException

Implements abstract org.eclipse.jgit.lib.ObjectLoader.getCachedBytes.

Doc from org.eclipse.jgit.lib.ObjectLoader.getCachedBytes.

Obtain a reference to the (possibly cached) bytes of this object.

This method offers direct access to the internal caches, potentially saving on data copies between the internal cache and higher level code. Callers who receive this reference must not modify its contents. Changes (if made) will affect the cache but not the repository itself.

Returns:byte[]

the cached bytes of this object. Do not modify it.

Annotations

@Override

Exceptions

LargeObjectException:: if the object won't fit into a byte array, because isLarge() returns true. Callers should use openStream() instead to access the contents.

getSize

back to summary

public long getSize()

Implements abstract org.eclipse.jgit.lib.ObjectLoader.getSize.

Doc from org.eclipse.jgit.lib.ObjectLoader.getSize.

Get size of object in bytes

Returns:long

size of object in bytes

Annotations

@Override

getType back to summary

public int getType()

Implements abstract org.eclipse.jgit.lib.ObjectLoader.getType.

Doc from org.eclipse.jgit.lib.ObjectLoader.getType.

Get Git in pack object type

Returns:int

Git in pack object type, see org.eclipse.jgit.lib.Constants.

Annotations

@Override

isLarge back to summary

public boolean isLarge()

Overrides org.eclipse.jgit.lib.ObjectLoader.isLarge.

Doc from org.eclipse.jgit.lib.ObjectLoader.isLarge.

Whether this object is too large to obtain as a byte array.

Returns:boolean

true if this object is too large to obtain as a byte array. Objects over a certain threshold should be accessed only by their openStream() to prevent overflowing the JVM heap.

Annotations

@Override

openStream

back to summary

public ObjectStream openStream() throws IOException

Implements abstract org.eclipse.jgit.lib.ObjectLoader.openStream.

Doc from org.eclipse.jgit.lib.ObjectLoader.openStream.

Obtain an input stream to read this object's data.

Returns:ObjectStream

a stream of this object's data. Caller must close the stream when through with it. The returned stream is buffered with a reasonable buffer size.

Annotations

@Override

Exceptions

IOException:: the object store cannot be accessed.

public Class DfsInserter

Nested and Inner Type Summary

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private Class DfsInserter.PackStream

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private final Class DfsInserter.ReadBackStream

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private Class DfsInserter.Reader

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private Class DfsInserter.StreamLoader

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