io.scalecube.services.api

Class ServiceMessage

java.lang.Object

io.scalecube.services.api.ServiceMessage

public final class ServiceMessage
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ServiceMessage.Builder

Method Summary

Modifier and Type	Method and Description
static ServiceMessage.Builder	builder() Instantiates new empty message builder.
<T> T	data() Return the message data, which can be byte array, string or any type.
String	dataFormat() Returns data format of the message data.
static ServiceMessage.Builder	from(ServiceMessage message) Instantiates new message with the same data and headers as at given message.
boolean	hasData()
boolean	hasData(Class<?> dataClass)
String	header(String name) Returns header value by given header name.
Map<String,String>	headers() Returns the message headers.
String	qualifier() Returns message's qualifier.
String	streamId() Returns message's sid.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

from

public static ServiceMessage.Builder from(ServiceMessage message)

Instantiates new message with the same data and headers as at given message.

Parameters:

message - the message to be copied

Returns:

a new message, with the same data and headers

builder

public static ServiceMessage.Builder builder()

Instantiates new empty message builder.

Returns:

new builder

headers

public Map<String,String> headers()

Returns the message headers.

Returns:

message headers

header

public String header(String name)

Returns header value by given header name.

Parameters:

name - header name

Returns:

the message header by given header name

qualifier

public String qualifier()

Returns message's qualifier.

Returns:

qualifier string

streamId

public String streamId()

Returns message's sid.

Returns:

streamId.

dataFormat

public String dataFormat()

Returns data format of the message data.

Returns:

data format of the data

data

public <T> T data()

Return the message data, which can be byte array, string or any type.

Type Parameters:

T - data type

Returns:

payload of the message or null if message is without any payload

hasData

public boolean hasData()

hasData

public boolean hasData(Class<?> dataClass)

toString

public String toString()

Overrides:

toString in class Object