Class IncomingRabbitMQMetadata
- java.lang.Object
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- io.smallrye.reactive.messaging.rabbitmq.IncomingRabbitMQMetadata
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public class IncomingRabbitMQMetadata extends Object
Holds metadata from an incoming RabbitMQ message.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Optional<String>
getContentEncoding()
The content-encoding property is used as a modifier to the content-type.Optional<String>
getContentType()
The RFC-2046 MIME type for the message's application-data section (body).Optional<String>
getCorrelationId()
This is a client-specific id that can be used to mark or identify messages between clients.Optional<ZonedDateTime>
getCreationTime(ZoneId zoneId)
The absolute time when this message was created, expressed as aZonedDateTime
with respect to the suppliedZoneId
.<T> Optional<T>
getHeader(String header, Class<T> type)
Retrieves the header value cast to the required type.Map<String,Object>
getHeaders()
The headers property is a key/value map that allows for arbitrary, user-defined keys and values.Optional<String>
getId()
The message-id, if set, uniquely identifies a message within the message system.Optional<Integer>
getPriority()
This priority field contains the relative message priority.Optional<String>
getReplyTo()
The address of the node to send replies to.Optional<String>
getUserId()
The identity of the user responsible for producing the message.
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Method Detail
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getHeader
public <T> Optional<T> getHeader(String header, Class<T> type)
Retrieves the header value cast to the required type.- Type Parameters:
T
- the type- Parameters:
header
- the name of the headertype
- the required type- Returns:
- the cast header value, which may be empty if the header is not present
- Throws:
IllegalArgumentException
- if the header value could not be cast as required
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getHeaders
public Map<String,Object> getHeaders()
The headers property is a key/value map that allows for arbitrary, user-defined keys and values. Keys are string values that have a maximum length of 255 characters. Values can be any valid AMQP value type; this includesString
,Long
,Boolean
andList
.List values may contain a mixture of other values of any of the above types (including List).
- Returns:
- the message headers as an unmodifiable
Map
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getContentType
public Optional<String> getContentType()
The RFC-2046 MIME type for the message's application-data section (body). As per RFC-2046 this can contain a charset parameter defining the character encoding used: e.g., 'text/plain; charset="utf-8"'.If the payload is known to be truly opaque binary data, the content-type should be set to application/octet-stream.
Stored in the message properties.
- Returns:
- an
Optional
containing the content-type, which may be empty if no content-type was received
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getContentEncoding
public Optional<String> getContentEncoding()
The content-encoding property is used as a modifier to the content-type. When present, its value indicates what additional content encodings have been applied to the application-data, and thus what decoding mechanisms need to be applied in order to obtain the media-type referenced by the content-type header field.Stored in the message properties.
- Returns:
- an
Optional
containing the content-encoding, which may be empty if no content-encoding was received
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getCreationTime
public Optional<ZonedDateTime> getCreationTime(ZoneId zoneId)
The absolute time when this message was created, expressed as aZonedDateTime
with respect to the suppliedZoneId
.Stored in the message properties.
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getId
public Optional<String> getId()
The message-id, if set, uniquely identifies a message within the message system. The message producer is usually responsible for setting the message-id in such a way that it is assured to be globally unique. A broker may discard a message as a duplicate if the value of the message-id matches that of a previously received message sent to the same node.Stored in the message properties.
- Returns:
- an
Optional
containing the message-id, which may be empty if no message-id was received
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getUserId
public Optional<String> getUserId()
The identity of the user responsible for producing the message. The client sets this value, and it may be authenticated by intermediaries.Stored in the message properties.
- Returns:
- an
Optional
containing the user-id, which may be empty if no user-id was received
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getPriority
public Optional<Integer> getPriority()
This priority field contains the relative message priority. Higher numbers indicate higher priority messages. Messages with higher priorities may be delivered before those with lower priorities.Stored in the message properties.
- Returns:
- an
Optional
containing the priority, which may be empty if no priority was received
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getReplyTo
public Optional<String> getReplyTo()
The address of the node to send replies to.Stored in the message properties.
- Returns:
- an
Optional
containing the reply-to address, which may be empty if no reply-to was received
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