Module net.shibboleth.utilities.java.support

Package net.shibboleth.utilities.java.support.net

Class MediaTypeSupport

java.lang.Object

net.shibboleth.utilities.java.support.net.MediaTypeSupport

public final class MediaTypeSupport
extends Object

Support methods for Guava MediaType.

Field Summary

Fields

Modifier and Type	Field	Description
private static Function<MediaType,MediaType>	STRIP_PARAMS	Function to strip MediaType parameters.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MediaTypeSupport()	Constructor.

Method Summary

Modifier and Type	Method	Description
static boolean	validateContentType(String contentType, Set<MediaType> validTypes, boolean noContentTypeIsValid, boolean isOneOfStrategy)	Validate the specified Content-Type.

Methods inherited from class java.lang.Object

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

Field Detail

STRIP_PARAMS

private static final Function<MediaType,MediaType> STRIP_PARAMS

Function to strip MediaType parameters.

Constructor Detail

MediaTypeSupport

private MediaTypeSupport()

Constructor.

Method Detail

validateContentType

public static boolean validateContentType(String contentType,
                                          Set<MediaType> validTypes,
                                          boolean noContentTypeIsValid,
                                          boolean isOneOfStrategy)

Validate the specified Content-Type.

Two strategies are supported for evaluating a content type:

1. If isOneOfStrategy is true, then the MediaType parsed from the content type value is compared to each of the specified valid types via MediaType.is(MediaType). If any pass, the type is considered valid. This allows use of MediaType's support for wildcard and parameter evaluation.
2. If isOneOfStrategy is false, then the MediaType parsed from the value is stripped of its parameters, as is each of the valid types. Then a simple evaluation is done that the specified content type is equal to one of the passed types. In this case, only literal types and subtypes should be passed as valid types; wildcards should not be used.

Parameters:

contentType - the contentType to be validated

validTypes - the set of valid media types

noContentTypeIsValid - flag whether the case of a missing/empty Content-Type header is considered valid

isOneOfStrategy - flag for the strategy used in the validation (see above for details)

Returns:

true if the content type is valid, false if not