Package org.glassfish.jersey.message.internal

Class Quality

java.lang.Object

org.glassfish.jersey.message.internal.Quality

public final class Quality
extends Object

Quality parameter constants.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT	Default quality value.
static final int	MAXIMUM	Maximum quality value.
static final int	MINIMUM	Minimum quality value.
static final Comparator<Qualified>	QUALIFIED_COMPARATOR	A "highest first" qualified element comparator.
static final String	QUALITY_PARAMETER_NAME	Quality HTTP header parameter name.
static final String	QUALITY_SOURCE_PARAMETER_NAME	Quality source HTTP header parameter name.
static final Comparator<Integer>	QUALITY_VALUE_COMPARATOR	A "highest first" quality value comparator.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Quality()	Prevents instantiation.

Method Summary

Modifier and Type	Method	Description
private static int	compare(int x, int y)	Compares two int values numerically.
(package private) static Map<String,String>	enhanceWithQualityParameter(Map<String,String> parameters, String qualityParamName, int quality)	Add a quality parameter to a HTTP header parameter map (if needed).
private static String	qualityValueToString(float quality)

Methods inherited from class java.lang.Object

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

Field Details

QUALIFIED_COMPARATOR

public static final Comparator<Qualified> QUALIFIED_COMPARATOR

A "highest first" qualified element comparator. An element with higher quality value will be sorted ahead of elements with lower quality value.

QUALITY_VALUE_COMPARATOR

public static final Comparator<Integer> QUALITY_VALUE_COMPARATOR

A "highest first" quality value comparator. A higher quality value will be sorted ahead of a lower quality value.

QUALITY_PARAMETER_NAME

public static final String QUALITY_PARAMETER_NAME

Quality HTTP header parameter name.

See Also:

• Constant Field Values

QUALITY_SOURCE_PARAMETER_NAME

public static final String QUALITY_SOURCE_PARAMETER_NAME

Quality source HTTP header parameter name.

See Also:

• Constant Field Values

MINIMUM

public static final int MINIMUM

Minimum quality value.

See Also:

• Constant Field Values

MAXIMUM

public static final int MAXIMUM

Maximum quality value.

See Also:

• Constant Field Values

DEFAULT

public static final int DEFAULT

Default quality value.

See Also:

• Constant Field Values

Constructor Details

Quality

private Quality()

Prevents instantiation.

Method Details

enhanceWithQualityParameter

static Map<String,String> enhanceWithQualityParameter(Map<String,String> parameters,
 String qualityParamName,
 int quality)

Add a quality parameter to a HTTP header parameter map (if needed).

Parameters:

parameters - a map of HTTP header parameters.

qualityParamName - name of the quality parameter ("q" or "qs").

quality - quality value in [ppm].

Returns:

parameter map containing the proper quality parameter if necessary.

compare

private static int compare(int x,
 int y)

Compares two int values numerically. The value returned is identical to what would be returned by:

    Integer.valueOf(x).compareTo(Integer.valueOf(y))
 

Note: Taken from Integer.compare() from JDK 7.

Parameters:

x - the first int to compare

y - the second int to compare

Returns:

the value 0 if x == y; a value less than 0 if x < y; and a value greater than 0 if x > y

qualityValueToString

private static String qualityValueToString(float quality)