net.beadsproject.beads.analysis

Class FeatureManager

java.lang.Object

net.beadsproject.beads.analysis.FeatureManager

public class FeatureManager
extends java.lang.Object

A static class for managing audio feature data. Features are stored in a Map indexed by the Samples they refer to. FeatureManager can look for feature files associated with Samples. A danger to be aware of is the fact that FeatureManager is not well coupled to SampleManager, so if you wish to remove Samples you'll have to make sure you also manually remove entries in FeatureManager, otherwise the Sample data will not be freed. This might be addressed in future versions.

Author:

ollie

Constructor Summary

Constructors

Constructor and Description
FeatureManager()

Method Summary

Modifier and Type	Method and Description
static void	featuresForGroup(java.lang.String groupName)
static FeatureSet	featuresForSample(Sample sample) Gets the FeatureSet for a given Sample.
static FeatureSet	featuresForSampleIfLoaded(Sample sample) Gets the FeatureSet for a given Sample, only if the FeatureSet is already stored in memory.
static boolean	isVerbose() Determines if FeatureManager is being verbose.
static void	removeSample(Sample s) Removes the features associated with the given Sample.
static void	setFeaturesForSample(Sample s, FeatureSet fs) Sets the FeatureSet for the given Sample.
static void	setVerbose(boolean verbose) Tells FeatureManager to produce verbose output.

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureManager

public FeatureManager()

Method Detail

setFeaturesForSample

public static void setFeaturesForSample(Sample s,
                                        FeatureSet fs)

Sets the FeatureSet for the given Sample.

Parameters:

s - the Sample.

fs - the FeatureSet.

featuresForSample

public static FeatureSet featuresForSample(Sample sample)

Gets the FeatureSet for a given Sample. The method first checks to see if the FeatureSet is already stored in memory. If not it looks for a file with the same file name as the Sample (including the file type), but with the suffix ".features". Once loaded, the FeatureSet is stored in memory.

Parameters:

sample - the Sample to search for features of.

Returns:

the FeatureSet.

featuresForSampleIfLoaded

public static FeatureSet featuresForSampleIfLoaded(Sample sample)

Gets the FeatureSet for a given Sample, only if the FeatureSet is already stored in memory.

Parameters:

sample - the Sample to search for features of.

Returns:

the FeatureSet.

featuresForGroup

public static void featuresForGroup(java.lang.String groupName)

removeSample

public static void removeSample(Sample s)

Removes the features associated with the given Sample.

Parameters:

s - the Sample.

isVerbose

public static boolean isVerbose()

Determines if FeatureManager is being verbose.

Returns:

true if verbose.

setVerbose

public static void setVerbose(boolean verbose)

Tells FeatureManager to produce verbose output.

Parameters:

verbose - true for verbose output.