org.kaaproject.kaa.client.logging.memory

Class MemLogStorage

java.lang.Object

org.kaaproject.kaa.client.logging.memory.MemLogStorage

All Implemented Interfaces:

LogStorage, LogStorageStatus

public class MemLogStorage
extends Object
implements LogStorage, LogStorageStatus

Constructor Summary

Constructors

Constructor and Description
MemLogStorage()
MemLogStorage(long bucketSize, int bucketRecordCount)
MemLogStorage(long maxStorageSize, long bucketSize, int bucketRecordCount)

Method Summary

Modifier and Type	Method and Description
BucketInfo	addLogRecord(LogRecord record) Persists a log record.
void	close() Closes a log storage and releases all used resources (if any).
long	getConsumedVolume() Retrieves current log storage size used by added records.
LogBucket	getNextBucket() Returns a new log bucket.
long	getRecordCount() Retrieves current number of added records.
LogStorageStatus	getStatus() Returns a log storage status.
void	removeBucket(int id) Tells a log storage to remove a log bucket.
void	rollbackBucket(int id) Tells a log storage to consider a log bucket as unused, i.e.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemLogStorage

public MemLogStorage()

MemLogStorage

public MemLogStorage(long bucketSize,
                     int bucketRecordCount)

MemLogStorage

public MemLogStorage(long maxStorageSize,
                     long bucketSize,
                     int bucketRecordCount)

Method Detail

getConsumedVolume

public long getConsumedVolume()

Description copied from interface: LogStorageStatus

Retrieves current log storage size used by added records.

Specified by:

getConsumedVolume in interface LogStorageStatus

Returns:

Amount of bytes consumed by added records

getRecordCount

public long getRecordCount()

Description copied from interface: LogStorageStatus

Retrieves current number of added records.

Specified by:

getRecordCount in interface LogStorageStatus

Returns:

Number of records in a local storage

addLogRecord

public BucketInfo addLogRecord(LogRecord record)

Description copied from interface: LogStorage

Persists a log record.

Specified by:

addLogRecord in interface LogStorage

Parameters:

record - The LogRecord object.

Returns:

The BucketInfo object which contains information about a bucket the log record is added.

See Also:

LogRecord, BucketInfo

getNextBucket

public LogBucket getNextBucket()

Description copied from interface: LogStorage

Returns a new log bucket.

Specified by:

getNextBucket in interface LogStorage

Returns:

The LogBucket object or null if there is no logs.

See Also:

LogBucket

removeBucket

public void removeBucket(int id)

Description copied from interface: LogStorage

Tells a log storage to remove a log bucket.

Specified by:

removeBucket in interface LogStorage

Parameters:

id - The id of a log bucket.

See Also:

LogBucket, BucketInfo

rollbackBucket

public void rollbackBucket(int id)

Description copied from interface: LogStorage

Tells a log storage to consider a log bucket as unused, i.e. a log bucket will be accessible again via LogStorage.getNextBucket().

Specified by:

rollbackBucket in interface LogStorage

Parameters:

id - The id of a log bucket.

See Also:

LogBucket, BucketInfo

close

public void close()

Description copied from interface: LogStorage

Closes a log storage and releases all used resources (if any).

Specified by:

close in interface LogStorage

getStatus

public LogStorageStatus getStatus()

Description copied from interface: LogStorage

Returns a log storage status.

Specified by:

getStatus in interface LogStorage

Returns:

The LogStorageStatus object.

See Also:

LogStorageStatus