org.apache.jackrabbit.oak.plugins.blob.datastore

Class BlobIdTracker

java.lang.Object

org.apache.jackrabbit.oak.plugins.blob.datastore.BlobIdTracker

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, BlobTracker

public class BlobIdTracker
extends java.lang.Object
implements java.io.Closeable, BlobTracker

Tracks the blob ids available or added in the blob store using the BlobIdStore .

Constructor Summary

Constructors

Constructor and Description
BlobIdTracker(java.lang.String path, java.lang.String repositoryId, long snapshotIntervalSecs, SharedDataStore datastore)
BlobIdTracker(java.lang.String path, java.lang.String repositoryId, java.util.concurrent.ScheduledExecutorService scheduler, long snapshotDelaySecs, long snapshotIntervalSecs, SharedDataStore datastore)

Method Summary

Modifier and Type	Method and Description
void	add(java.io.File recs) Adds the ids in the given file.
void	add(java.util.Iterator<java.lang.String> recs) Adds the given ids.
void	add(java.lang.String id) Adds the given id.
void	close() Closes the tracker and the underlying store.
java.util.Iterator<java.lang.String>	get() Retrieves all the reference files available in the DataStore and merges them to the local store and then returns an iterator over it.
java.io.File	get(java.lang.String path) Fetches a File object which having all the sorted records.
void	remove(java.io.File recs) Remove the ids in the given file and deletes the file.
void	remove(java.util.Iterator<java.lang.String> recs) Remove the given ids.

Methods inherited from class java.lang.Object

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

Constructor Detail

BlobIdTracker

public BlobIdTracker(java.lang.String path,
                     java.lang.String repositoryId,
                     long snapshotIntervalSecs,
                     SharedDataStore datastore)
              throws java.io.IOException

Throws:

java.io.IOException

BlobIdTracker

public BlobIdTracker(java.lang.String path,
                     java.lang.String repositoryId,
                     java.util.concurrent.ScheduledExecutorService scheduler,
                     long snapshotDelaySecs,
                     long snapshotIntervalSecs,
                     SharedDataStore datastore)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

remove

public void remove(java.io.File recs)
            throws java.io.IOException

Description copied from interface: BlobTracker

Remove the ids in the given file and deletes the file.

Specified by:

remove in interface BlobTracker

Throws:

java.io.IOException

remove

public void remove(java.util.Iterator<java.lang.String> recs)
            throws java.io.IOException

Description copied from interface: BlobTracker

Remove the given ids.

Specified by:

remove in interface BlobTracker

Throws:

java.io.IOException

add

public void add(java.lang.String id)
         throws java.io.IOException

Description copied from interface: BlobTracker

Adds the given id.

Specified by:

add in interface BlobTracker

Parameters:

id - the record id to be tracked

Throws:

java.io.IOException

add

public void add(java.util.Iterator<java.lang.String> recs)
         throws java.io.IOException

Description copied from interface: BlobTracker

Adds the given ids.

Specified by:

add in interface BlobTracker

Throws:

java.io.IOException

add

public void add(java.io.File recs)
         throws java.io.IOException

Description copied from interface: BlobTracker

Adds the ids in the given file.

Specified by:

add in interface BlobTracker

Throws:

java.io.IOException

get

public java.util.Iterator<java.lang.String> get()
                                         throws java.io.IOException

Retrieves all the reference files available in the DataStore and merges them to the local store and then returns an iterator over it. This way the ids returned are as recent as the snapshots taken on all instances/repositories connected to the DataStore. The iterator returned ia a Closeable instance and should be closed by calling #close().

Specified by:

get in interface BlobTracker

Returns:

iterator over all the blob ids available

Throws:

java.io.IOException

get

public java.io.File get(java.lang.String path)
                 throws java.io.IOException

Description copied from interface: BlobTracker

Fetches a File object which having all the sorted records. The lifecycle of the returned File handle is the responsibility of the handler.

Specified by:

get in interface BlobTracker

Returns:

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Closes the tracker and the underlying store.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException