Collaboration diagram for ContentTypeNegotiator.Negotiation:

[legend]

Package Functions
	Negotiation (List< MediaRangeSpec > ranges)

MediaRangeSpec	negotiate ()

Private Member Functions
void	evaluateVariantAlias (MediaRangeSpec variant, MediaRangeSpec isAliasFor)

void	evaluateVariant (MediaRangeSpec variant)

void	evaluateDefaultVariant (MediaRangeSpec variant)

Private Attributes
final List< MediaRangeSpec >	ranges

MediaRangeSpec	bestMatchingVariant = null

MediaRangeSpec	bestDefaultVariant = null

double	bestMatchingQuality = 0

double	bestDefaultQuality = 0

Constructor & Destructor Documentation

◆ Negotiation()

Negotiation ( List< MediaRangeSpec > ranges )

package

                                                          {
                         this.ranges = ranges;
                 }

References ContentTypeNegotiator.Negotiation.ranges.

Member Function Documentation

◆ evaluateDefaultVariant()

void evaluateDefaultVariant ( MediaRangeSpec variant )

private

                                                                             {
                         if (variant.getQuality() > bestDefaultQuality) {
                                 bestDefaultVariant = variant;
                                 bestDefaultQuality = 0.00001 * variant.getQuality();
                         }
                 }

References ContentTypeNegotiator.Negotiation.bestDefaultQuality, ContentTypeNegotiator.Negotiation.bestDefaultVariant, and MediaRangeSpec.getQuality().

Referenced by ContentTypeNegotiator.Negotiation.negotiate().

◆ evaluateVariant()

void evaluateVariant ( MediaRangeSpec variant )

private

                                                                      {
                         evaluateVariantAlias(variant, variant);
                 }

References ContentTypeNegotiator.Negotiation.evaluateVariantAlias().

Referenced by ContentTypeNegotiator.Negotiation.negotiate().

◆ evaluateVariantAlias()

void evaluateVariantAlias	(	MediaRangeSpec	variant,
		MediaRangeSpec	isAliasFor
	)

private

                                                                                                      {
                         if (variant.getBestMatch(ranges) == null) return;
                         double q = variant.getBestMatch(ranges).getQuality();
                         if (q * variant.getQuality() > bestMatchingQuality) {
                                 bestMatchingVariant = isAliasFor;
                                 bestMatchingQuality = q * variant.getQuality();
                         }
                 }

References ContentTypeNegotiator.Negotiation.bestMatchingQuality, ContentTypeNegotiator.Negotiation.bestMatchingVariant, MediaRangeSpec.getBestMatch(), MediaRangeSpec.getQuality(), and ContentTypeNegotiator.Negotiation.ranges.

Referenced by ContentTypeNegotiator.Negotiation.evaluateVariant(), and ContentTypeNegotiator.Negotiation.negotiate().

◆ negotiate()

MediaRangeSpec negotiate ( )

package

                                            {
                         Iterator<VariantSpec> it = variantSpecs.iterator();
                         while (it.hasNext()) {
                                 VariantSpec variant = it.next();
                                 if (variant.isDefault) {
                                         evaluateDefaultVariant(variant.getMediaType());
                                 }
                                 evaluateVariant(variant.getMediaType());
                                 Iterator<MediaRangeSpec> aliasIt = variant.getAliases().iterator();
                                 while (aliasIt.hasNext()) {
                                         MediaRangeSpec alias = (MediaRangeSpec) aliasIt.next();
                                         evaluateVariantAlias(alias, variant.getMediaType());
                                 }
                         }
                         return (bestMatchingVariant == null) ? bestDefaultVariant : bestMatchingVariant;
                 }