fiftyone.mobile.detection.entities.stream

Class Dataset

java.lang.Object

fiftyone.mobile.detection.Dataset

fiftyone.mobile.detection.entities.stream.Dataset

All Implemented Interfaces:

Closeable, AutoCloseable

public class Dataset
extends Dataset

A data set returned from the stream factory which includes a pool of data readers that are used to fetch data from the source when the data set is used to retrieve data not already in memory.

Extends Dataset

Created by StreamFactory. Since stream works with file directly a pool of readers is maintained until the dataset is closed. Class provides extra methods to check how many readers were created and how many are currently free to use.

Field Summary

Fields

Modifier and Type	Field and Description
Pool	pool A pool of data readers.

Fields inherited from class fiftyone.mobile.detection.Dataset

age, components, copyright, copyrightOffset, csvBufferLength, deviceCombinations, export, format, formatOffset, highestCharacter, jsonBufferLength, lastModified, lowestCharacter, maps, maximumRank, maxSignatures, maxSignaturesClosest, maxUserAgentLength, maxValues, minUserAgentCount, minUserAgentLength, mode, nameOffset, nextUpdate, nodeRankedSignatureIndexes, nodes, profileOffsets, profiles, properties, published, rankedSignatureIndexes, rootNodes, signatureNodeOffsets, signatureNodesCount, signatureProfilesCount, signatures, strings, tag, values, version, versionEnum, xmlBufferLength

Constructor Summary

Constructors

Constructor and Description
Dataset(byte[] data, Modes mode) Creates a dataset object with a pool of readers used to retrieve data from the data file represented as an array of bytes.
Dataset(String fileName, Date lastModified, Modes mode, boolean isTempFile) Creates a dataset object with a pool of readers used to retrieve data from the data file.

Method Summary

Modifier and Type	Method and Description
void	close() Dispose of the dataset and the pool of readers.
int	getReadersCreated()
int	getReadersQueued()
void	resetCache() Resets the cache for the data set.

Methods inherited from class fiftyone.mobile.detection.Dataset

findProfile, get, getAge, getBrowsers, getComponent, getComponents, getCopyright, getCrawlers, getDisposed, getFormat, getHardware, getHttpHeaders, getMaps, getMaximumRank, getMinUserAgentLength, getName, getNodeCacheSwitches, getNodeRankedSignatureIndexes, getNodes, getNodesCount, getPercentageNodeCacheMisses, getPercentageProfilesCacheMisses, getPercentageRankedSignatureCacheMisses, getPercentageSignatureCacheMisses, getPercentageStringsCacheMisses, getPercentageValuesCacheMisses, getProfiles, getProfilesCacheSwitches, getProfilesCount, getProperties, getPropertyByName, getRankedSignatureCacheSwitches, getRankedSignatureIndexes, getSignatureCacheSwitches, getSignatureNodeOffsets, getSignatures, getSoftware, getStringsCacheSwitches, getValues, getValuesCacheSwitches, init, initComponents, initNodes, initProfiles, initProperties, initSignatures, initValues

Methods inherited from class java.lang.Object

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

Field Detail

pool

public final Pool pool

A pool of data readers.

Constructor Detail

Dataset

public Dataset(String fileName,
               Date lastModified,
               Modes mode,
               boolean isTempFile)
        throws IOException

Creates a dataset object with a pool of readers used to retrieve data from the data file. Only useful in stram mode.

Parameters:

lastModified - Date and time the source data was last modified.

fileName - Valid path to the uncompressed data set file.

mode - Mode The mode of operation the data set will be using.

isTempFile - True if the file should be deleted when the source is disposed

Throws:

IOException - if there was a problem accessing data file.

Dataset

public Dataset(byte[] data,
               Modes mode)
        throws IOException

Creates a dataset object with a pool of readers used to retrieve data from the data file represented as an array of bytes. Only useful in stram mode.

Parameters:

data - array of bytes to read from.

mode - The mode of operation the data set will be using.

Throws:

IOException - if there was a problem accessing data file.

Method Detail

close

public void close()
           throws IOException

Dispose of the dataset and the pool of readers.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class Dataset

Throws:

IOException - if there was a problem accessing data file.

resetCache

public void resetCache()

Resets the cache for the data set.

Overrides:

resetCache in class Dataset

getReadersCreated

public int getReadersCreated()

Returns:

The number of readers that have been created in the pool that connects the data set to the data source.

getReadersQueued

public int getReadersQueued()

Returns:

The number of readers in the queue ready to be used.