org.apache.jackrabbit.mk.persistence
Class MongoPersistence

java.lang.Object
  org.apache.jackrabbit.mk.persistence.MongoPersistence

All Implemented Interfaces:

Closeable, BlobStore, Persistence

public class MongoPersistence
extends Object
implements Persistence, Closeable, BlobStore

Nested Class Summary

protected class

MongoPersistence.DBObjectBinding

Field Summary

protected static String	ENCODED_DOLLAR_SIGN
protected static String	ENCODED_DOT

Constructor Summary

MongoPersistence()

Method Summary

String	addBlob(String tempFilePath) Write a blob from a temporary file.
void	close()
protected static String	decodeName(String name)
protected static String	encodeName(String name) see http://www.mongodb.org/display/DOCS/Legal+Key+Names
long	getBlobLength(String blobId)
void	initialize()
int	readBlob(String blobId, long pos, byte[] buff, int off, int length)
ChildNodeEntriesMap	readCNEMap(Id id)
StoredCommit	readCommit(Id id)
Id	readHead()
void	readNode(StoredNode node) Read a node from storage.
String	writeBlob(InputStream in) Write a blob from an input stream.
Id	writeCNEMap(ChildNodeEntriesMap map)
void	writeCommit(Id id, Commit commit) Persist a commit, with an id that is selected by the caller.
void	writeHead(Id id)
Id	writeNode(Node node)

Methods inherited from class java.lang.Object

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

Field Detail

ENCODED_DOT

protected static final String ENCODED_DOT

See Also:

Constant Field Values

ENCODED_DOLLAR_SIGN

protected static final String ENCODED_DOLLAR_SIGN

See Also:

Constant Field Values

Constructor Detail

MongoPersistence

public MongoPersistence()

Method Detail

initialize

public void initialize()
                throws Exception

Throws:

Exception

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface BlobStore

readHead

public Id readHead()
            throws Exception

Specified by:

readHead in interface Persistence

Throws:

Exception

writeHead

public void writeHead(Id id)
               throws Exception

Specified by:

writeHead in interface Persistence

Throws:

Exception

readNode

public void readNode(StoredNode node)
              throws NotFoundException,
                     Exception

Description copied from interface: Persistence

Read a node from storage.

Specified by:

readNode in interface Persistence

Parameters:

node - node to read, with id given in StoredNode.getId()

Throws:

NotFoundException - if no such node is found

Exception - if some other error occurs

writeNode

public Id writeNode(Node node)
             throws Exception

Specified by:

writeNode in interface Persistence

Throws:

Exception

readCommit

public StoredCommit readCommit(Id id)
                        throws NotFoundException,
                               Exception

Specified by:

readCommit in interface Persistence

Throws:

NotFoundException

Exception

writeCommit

public void writeCommit(Id id,
                        Commit commit)
                 throws Exception

Description copied from interface: Persistence

Persist a commit, with an id that is selected by the caller.

Specified by:

writeCommit in interface Persistence

Parameters:

id - commit id

commit - commit

Throws:

Exception - if an error occurs

readCNEMap

public ChildNodeEntriesMap readCNEMap(Id id)
                               throws NotFoundException,
                                      Exception

Specified by:

readCNEMap in interface Persistence

Throws:

NotFoundException

Exception

writeCNEMap

public Id writeCNEMap(ChildNodeEntriesMap map)
               throws Exception

Specified by:

writeCNEMap in interface Persistence

Throws:

Exception

addBlob

public String addBlob(String tempFilePath)
               throws Exception

Description copied from interface: BlobStore

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:

addBlob in interface BlobStore

Parameters:

tempFilePath - the temporary file

Returns:

the blob id

Throws:

Exception

writeBlob

public String writeBlob(InputStream in)
                 throws Exception

Description copied from interface: BlobStore

Write a blob from an input stream. This method closes the input stream.

Specified by:

writeBlob in interface BlobStore

Parameters:

in - the input stream

Returns:

the blob id

Throws:

Exception

readBlob

public int readBlob(String blobId,
                    long pos,
                    byte[] buff,
                    int off,
                    int length)
             throws Exception

Specified by:

readBlob in interface BlobStore

Throws:

Exception

getBlobLength

public long getBlobLength(String blobId)
                   throws Exception

Specified by:

getBlobLength in interface BlobStore

Throws:

Exception

encodeName

protected static String encodeName(String name)

see http://www.mongodb.org/display/DOCS/Legal+Key+Names

Parameters:

name -

decodeName

protected static String decodeName(String name)