@Beta @GwtCompatible @Immutable public final class MediaType extends Object
Represents an Internet Media Type (also known as a MIME Type or Content Type). This class also supports the concept of media ranges defined by HTTP/1.1. As such, the * character is treated as a wildcard and is used to represent any acceptable type or subtype value. A media type may not have wildcard type with a declared subtype. The * character has no special meaning as part of a parameter. All values for type, subtype, parameter attributes or parameter values must be valid according to RFCs 2045 and 2046.
All portions of the media type that are case-insensitive (type, subtype, parameter attributes) are normalized to lowercase. The value of the charset parameter is normalized to lowercase, but all others are left as-is.
Note that this specifically does not represent the value of the MIME Content-Type header and as such has no support for header-specific considerations such as line folding and comments.
For media types that take a charset the predefined constants default to UTF-8 and have a "_UTF_8" suffix. To get a version without a character set, use withoutParameters().
| Modifier and Type | Method and Description |
|---|---|
Optional<Charset> |
charset()
Returns an optional charset for the value of the charset parameter if it is specified.
|
static MediaType |
create(String type,
String subtype)
Creates a new media type with the given type and subtype.
|
boolean |
equals(Object obj) |
int |
hashCode() |
boolean |
hasWildcard()
Returns true if either the type or subtype is the wildcard.
|
boolean |
is(MediaType mediaTypeRange)
Returns
true if this instance falls within the range (as defined by the HTTP Accept header) given by the argument according to three criteria: |
ImmutableListMultimap<String,String> |
parameters()
Returns a multimap containing the parameters of this media type.
|
static MediaType |
parse(String input)
Parses a media type from its string representation.
|
String |
subtype()
Returns the media subtype.
|
String |
toString()
Returns the string representation of this media type in the format described in RFC 2045.
|
String |
type()
Returns the top-level media type.
|
MediaType |
withCharset(Charset charset)
Returns a new instance with the same type and subtype as this instance, with the
charset parameter set to the name of the given charset. |
MediaType |
withoutParameters()
Returns a new instance with the same type and subtype as this instance, but without any parameters.
|
MediaType |
withParameter(String attribute,
String value)
Replaces all parameters with the given attribute with a single parameter with the given value.
|
MediaType |
withParameters(Multimap<String,String> parameters)
Replaces all parameters with the given parameters.
|
public static final MediaType ANY_TYPE
public static final MediaType ANY_TEXT_TYPE
public static final MediaType ANY_IMAGE_TYPE
public static final MediaType ANY_AUDIO_TYPE
public static final MediaType ANY_VIDEO_TYPE
public static final MediaType ANY_APPLICATION_TYPE
public static final MediaType CACHE_MANIFEST_UTF_8
public static final MediaType CSS_UTF_8
public static final MediaType CSV_UTF_8
public static final MediaType HTML_UTF_8
public static final MediaType I_CALENDAR_UTF_8
public static final MediaType PLAIN_TEXT_UTF_8
public static final MediaType TEXT_JAVASCRIPT_UTF_8
RFC 4329 declares application/javascript to be the correct media type for JavaScript, but this may be necessary in certain situations for compatibility.
public static final MediaType TSV_UTF_8
public static final MediaType VCARD_UTF_8
public static final MediaType WML_UTF_8
public static final MediaType XML_UTF_8
As described in RFC 3023, this constant (text/xml) is used for XML documents that are “readable by casual users.” APPLICATION_XML_UTF_8 is provided for documents that are intended for applications.
public static final MediaType BMP
public static final MediaType CRW
The media type for the Canon Image File Format (crw files), a widely-used “raw image” format for cameras. It is found in /etc/mime.types, e.g. in <href= “http://anonscm.debian.org/gitweb/?p=collab-maint/mime-support.git;a=blob;f=mime.types;hb=HEAD”
Debian 3.48-1.
public static final MediaType GIF
public static final MediaType ICO
public static final MediaType JPEG
public static final MediaType PNG
public static final MediaType PSD
The media type for the Photoshop File Format (psd files) as defined by IANA, and found in /etc/mime.types, e.g. of the Apache HTTPD project; for the specification, see <href=“http://www.adobe.com/devnet-apps/photoshop/fileformatashtml/PhotoshopFileFormats.htm" Adobe Photoshop Document Format and Wikipedia; this is the regular output/input of Photoshop (which can also export to various image formats; note that files with extension ”PSB" are in a distinct but related format).
This is a more recent replacement for the older, experimental type x-photoshop: RFC-2046.6.
public static final MediaType SVG_UTF_8
public static final MediaType TIFF
public static final MediaType WEBP
public static final MediaType MP4_AUDIO
public static final MediaType MPEG_AUDIO
public static final MediaType OGG_AUDIO
public static final MediaType WEBM_AUDIO
public static final MediaType MP4_VIDEO
public static final MediaType MPEG_VIDEO
public static final MediaType OGG_VIDEO
public static final MediaType QUICKTIME
public static final MediaType WEBM_VIDEO
public static final MediaType WMV
public static final MediaType APPLICATION_XML_UTF_8
public static final MediaType ATOM_UTF_8
public static final MediaType BZIP2
public static final MediaType DART_UTF_8
Media type for dart files.
public static final MediaType APPLE_PASSBOOK
Media type for Apple Passbook.
public static final MediaType EOT
Media type for Embedded OpenType fonts. This is registered with the IANA.
public static final MediaType EPUB
As described in the International Digital Publishing Forum EPUB is the distribution and interchange format standard for digital publications and documents. This media type is defined in the EPUB Open Container Format specification.
public static final MediaType FORM_DATA
public static final MediaType KEY_ARCHIVE
As described in PKCS #12: Personal Information Exchange Syntax Standard, PKCS #12 defines an archive file format for storing many cryptography objects as a single file.
public static final MediaType APPLICATION_BINARY
This is a non-standard media type, but is commonly used in serving hosted binary files as it is known not to trigger content sniffing in current browsers. It should not be used in other situations as it is not specified by any RFC and does not appear in the /IANA MIME Media Types list. Consider OCTET_STREAM for binary data that is not being served to a browser.
public static final MediaType GZIP
public static final MediaType JAVASCRIPT_UTF_8
RFC 4329 declares this to be the correct media type for JavaScript, but text/javascript may be necessary in certain situations for compatibility.
public static final MediaType JSON_UTF_8
public static final MediaType MANIFEST_JSON_UTF_8
Media type for the Manifest for a web application.
public static final MediaType KML
public static final MediaType KMZ
public static final MediaType MBOX
public static final MediaType APPLE_MOBILE_CONFIG
Media type for Apple over-the-air mobile configuration profiles.
public static final MediaType MICROSOFT_EXCEL
public static final MediaType MICROSOFT_POWERPOINT
public static final MediaType MICROSOFT_WORD
public static final MediaType OCTET_STREAM
public static final MediaType OGG_CONTAINER
public static final MediaType OOXML_DOCUMENT
public static final MediaType OOXML_PRESENTATION
public static final MediaType OOXML_SHEET
public static final MediaType OPENDOCUMENT_GRAPHICS
public static final MediaType OPENDOCUMENT_PRESENTATION
public static final MediaType OPENDOCUMENT_SPREADSHEET
public static final MediaType OPENDOCUMENT_TEXT
public static final MediaType PDF
public static final MediaType POSTSCRIPT
public static final MediaType PROTOBUF
public static final MediaType RDF_XML_UTF_8
public static final MediaType RTF_UTF_8
public static final MediaType SFNT
Media type for SFNT fonts (which includes TrueType and OpenType fonts). This is registered with the IANA.
public static final MediaType SHOCKWAVE_FLASH
public static final MediaType SKETCHUP
public static final MediaType TAR
public static final MediaType WOFF
Media type for the Web Open Font Format (WOFF) defined by the W3C. This is registered with the IANA.
public static final MediaType XHTML_UTF_8
public static final MediaType XRD_UTF_8
Media type for Extensible Resource Descriptors. This is not yet registered with the IANA, but it is specified by OASIS in the XRD definition and implemented in projects such as WebFinger.
public static final MediaType ZIP
public String type()
Returns the top-level media type. For example, "text" in "text/plain".
public String subtype()
Returns the media subtype. For example, "plain" in "text/plain".
public ImmutableListMultimap<String,String> parameters()
Returns a multimap containing the parameters of this media type.
public Optional<Charset> charset()
Returns an optional charset for the value of the charset parameter if it is specified.
IllegalStateException - if multiple charset values have been set for this media typeIllegalCharsetNameException - if a charset value is present, but illegalUnsupportedCharsetException - if a charset value is present, but no support is available in this instance of the Java virtual machinepublic MediaType withoutParameters()
Returns a new instance with the same type and subtype as this instance, but without any parameters.
public MediaType withParameters(Multimap<String,String> parameters)
Replaces all parameters with the given parameters.
IllegalArgumentException - if any parameter or value is invalidpublic MediaType withParameter(String attribute, String value)
Replaces all parameters with the given attribute with a single parameter with the given value. If multiple parameters with the same attributes are necessary use withParameters(com.diffplug.common.collect.Multimap<java.lang.String, java.lang.String>). Prefer withCharset(java.nio.charset.Charset) for setting the charset parameter when using a Charset object.
IllegalArgumentException - if either attribute or value is invalidpublic MediaType withCharset(Charset charset)
Returns a new instance with the same type and subtype as this instance, with the charset parameter set to the name of the given charset. Only one charset parameter will be present on the new instance regardless of the number set on this one.
If a charset must be specified that is not supported on this JVM (and thus is not representable as a Charset instance, use withParameter(java.lang.String, java.lang.String).
public boolean hasWildcard()
Returns true if either the type or subtype is the wildcard.
public boolean is(MediaType mediaTypeRange)
Returns true if this instance falls within the range (as defined by the HTTP Accept header) given by the argument according to three criteria:
For example:
PLAIN_TEXT_UTF_8.is(PLAIN_TEXT_UTF_8) // true
PLAIN_TEXT_UTF_8.is(HTML_UTF_8) // false
PLAIN_TEXT_UTF_8.is(ANY_TYPE) // true
PLAIN_TEXT_UTF_8.is(ANY_TEXT_TYPE) // true
PLAIN_TEXT_UTF_8.is(ANY_IMAGE_TYPE) // false
PLAIN_TEXT_UTF_8.is(ANY_TEXT_TYPE.withCharset(UTF_8)) // true
PLAIN_TEXT_UTF_8.withoutParameters().is(ANY_TEXT_TYPE.withCharset(UTF_8)) // false
PLAIN_TEXT_UTF_8.is(ANY_TEXT_TYPE.withCharset(UTF_16)) // false
Note that while it is possible to have the same parameter declared multiple times within a media type this method does not consider the number of occurrences of a parameter. For example, "text/plain; charset=UTF-8" satisfies "text/plain; charset=UTF-8; charset=UTF-8".
public static MediaType create(String type, String subtype)
Creates a new media type with the given type and subtype.
IllegalArgumentException - if type or subtype is invalid or if a wildcard is used for the type, but not the subtype.public static MediaType parse(String input)
Parses a media type from its string representation.
IllegalArgumentException - if the input is not parsable