org.glassfish.jersey.message.internal

Class Quality

java.lang.Object

org.glassfish.jersey.message.internal.Quality

public final class Quality
extends java.lang.Object

Quality parameter constants.

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Quality() Prevents instantiation.

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

QUALIFIED_COMPARATOR

public static final java.util.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 java.util.Comparator<java.lang.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 java.lang.String QUALITY_PARAMETER_NAME

Quality HTTP header parameter name.

See Also:

Constant Field Values

QUALITY_SOURCE_PARAMETER_NAME

public static final java.lang.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 Detail

Quality

private Quality()

Prevents instantiation.

Method Detail

enhanceWithQualityParameter

static java.util.Map<java.lang.String,java.lang.String> enhanceWithQualityParameter(java.util.Map<java.lang.String,java.lang.String> parameters,
                                                                                    java.lang.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 java.lang.String qualityValueToString(float quality)