public class DefaultMetadataExtractor extends Object implements MetadataExtractor, MetadataExtractorRegistry
MetadataExtractor implementation that relies on
Decoders to deserialize the content of metadata entries.
By default only "message/x.rsocket.routing.v0" is extracted and
saved under MetadataExtractor.ROUTE_KEY. Use metadataToExtract
methods to specify other metadata mime types of interest to extract.
ROUTE_KEY| Constructor and Description |
|---|
DefaultMetadataExtractor(Decoder<?>... decoders)
Constructor with decoders for de-serializing metadata entries.
|
DefaultMetadataExtractor(List<Decoder<?>> decoders)
Constructor with list of decoders for de-serializing metadata entries.
|
| Modifier and Type | Method and Description |
|---|---|
Map<String,Object> |
extract(Payload payload,
MimeType metadataMimeType)
Extract a map of values from the given
Payload metadata. |
List<? extends Decoder<?>> |
getDecoders()
Return a read-only list with the configured decoders.
|
<T> void |
metadataToExtract(MimeType mimeType,
Class<T> targetType,
BiConsumer<T,Map<String,Object>> mapper)
Variant of
MetadataExtractorRegistry.metadataToExtract(MimeType, Class, String) that allows
custom logic to be used to map the decoded value to any number of values
in the output map. |
<T> void |
metadataToExtract(MimeType mimeType,
ParameterizedTypeReference<T> type,
BiConsumer<T,Map<String,Object>> mapper)
Variant of
MetadataExtractorRegistry.metadataToExtract(MimeType, Class, BiConsumer) that
accepts ParameterizedTypeReference instead of Class for
specifying a target type with generic parameters. |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitmetadataToExtract, metadataToExtractpublic DefaultMetadataExtractor(Decoder<?>... decoders)
public List<? extends Decoder<?>> getDecoders()
public <T> void metadataToExtract(MimeType mimeType, Class<T> targetType, BiConsumer<T,Map<String,Object>> mapper)
MetadataExtractorRegistryMetadataExtractorRegistry.metadataToExtract(MimeType, Class, String) that allows
custom logic to be used to map the decoded value to any number of values
in the output map.metadataToExtract in interface MetadataExtractorRegistryT - the target value typemimeType - the mime type of metadata entries to extracttargetType - the target value type to decode tomapper - custom logic to add the decoded value to the output mappublic <T> void metadataToExtract(MimeType mimeType, ParameterizedTypeReference<T> type, BiConsumer<T,Map<String,Object>> mapper)
MetadataExtractorRegistryMetadataExtractorRegistry.metadataToExtract(MimeType, Class, BiConsumer) that
accepts ParameterizedTypeReference instead of Class for
specifying a target type with generic parameters.metadataToExtract in interface MetadataExtractorRegistryT - the target value typemimeType - the mime type of metadata entries to extracttype - the target value type to decode tomapper - custom logic to add the decoded value to the output mappublic Map<String,Object> extract(Payload payload, MimeType metadataMimeType)
MetadataExtractorPayload metadata.
The Payload "route", if present, should be saved under MetadataExtractor.ROUTE_KEY.extract in interface MetadataExtractorpayload - the payload whose metadata should be readmetadataMimeType - the metadata MimeType for the connection.