Module io.helidon.common.media.type

Package io.helidon.common.media.type

Class MediaTypes

java.lang.Object

io.helidon.common.media.type.MediaTypes

public final class MediaTypes
extends Object

Media type detection based on a resource.

The media type detection uses the following algorithm:

• Queries MediaTypeDetector services in priority order
• Checks all META-INF/media-types.properties files on classpath for a mapping (suffix=media type)
• Checks built-in mapping provided by Helidon (with the usual the web relevant media types)

Method Summary

Modifier and Type	Method	Description
static Optional<String>	detectExtensionType(String fileSuffix)	Detecd media type for a specific file extension.
static Optional<String>	detectType(String fileName)	Detect media type for a path (may be URL, URI, path on a file system).
static Optional<String>	detectType(URI uri)	Detect media type based on URI.
static Optional<String>	detectType(URL url)	Detect media type based on URL.
static Optional<String>	detectType(Path file)	Detect media type for a file on file system.

Methods inherited from class java.lang.Object

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

Method Detail

detectType

public static Optional<String> detectType(URL url)

Detect media type based on URL. As there may be an infinite number of urls used in a system, the results are NOT cached.

Parameters:

url - to determine media type for

Returns:

media type or empty if none found

detectType

public static Optional<String> detectType(URI uri)

Detect media type based on URI. Results may not be cached.

Parameters:

uri - to determine media type for

Returns:

media type or empty if none found

detectType

public static Optional<String> detectType(Path file)

Detect media type for a file on file system. Results may not be cached.

Parameters:

file - file on a file system

Returns:

media type or empty if none found

detectType

public static Optional<String> detectType(String fileName)

Detect media type for a path (may be URL, URI, path on a file system). Results may not be cached. If you have URL, URI, or Path please use the other methods on this class.

Parameters:

fileName - any string that has a file name as its last element

Returns:

media type or empty if none found

See Also:

detectType(java.net.URI), detectType(java.net.URL), detectType(java.nio.file.Path)

detectExtensionType

public static Optional<String> detectExtensionType(String fileSuffix)

Detecd media type for a specific file extension. Results are cached.

Parameters:

fileSuffix - suffix of a file, such as txt, properties, or jpeg. Without the leading dot.

Returns:

media type for the file suffix or empty if none found