Package zipkin2.collector

Class Collector

java.lang.Object

zipkin2.collector.Collector

public class Collector
extends Object

This component takes action on spans received from a transport. This includes deserializing, sampling and scheduling for storage.

Callbacks passed do not propagate to the storage layer. They only return success or failures before storage is attempted. This ensures that calling threads are disconnected from storage threads.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Collector.Builder

Method Summary

Modifier and Type	Method	Description
void	accept(List<Span> spans, Callback<Void> callback)
void	accept(List<Span> spans, Callback<Void> callback, Executor executor)
void	acceptSpans(byte[] serialized, Callback<Void> callback)	Before calling this, call CollectorMetrics.incrementMessages(), and CollectorMetrics.incrementBytes(int).
void	acceptSpans(byte[] serializedSpans, BytesDecoder<Span> decoder, Callback<Void> callback)	Before calling this, call CollectorMetrics.incrementMessages(), and CollectorMetrics.incrementBytes(int).
void	acceptSpans(ByteBuffer encoded, SpanBytesDecoder decoder, Callback<Void> callback, Executor executor)	Like acceptSpans(byte[], BytesDecoder, Callback), except using a byte buffer.
static Collector.Builder	newBuilder(Class<?> loggingClass)	Needed to scope this to the correct logging category

Methods inherited from class java.lang.Object

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

Method Details

newBuilder

public static Collector.Builder newBuilder(Class<?> loggingClass)

Needed to scope this to the correct logging category

accept

public void accept(List<Span> spans, Callback<Void> callback)

accept

public void accept(List<Span> spans, Callback<Void> callback, Executor executor)

Parameters:

executor - the executor used to enqueue the storage request.

Calls to get the storage component could be blocking. This ensures requests that block callers (such as http or gRPC) do not add additional load during such events.

acceptSpans

public void acceptSpans(ByteBuffer encoded, SpanBytesDecoder decoder, Callback<Void> callback, Executor executor)

Like acceptSpans(byte[], BytesDecoder, Callback), except using a byte buffer.

acceptSpans

public void acceptSpans(byte[] serialized, Callback<Void> callback)

Before calling this, call CollectorMetrics.incrementMessages(), and CollectorMetrics.incrementBytes(int). Do not call any other metrics callbacks as those are handled internal to this method.

Parameters:

serialized - not empty message

acceptSpans

public void acceptSpans(byte[] serializedSpans, BytesDecoder<Span> decoder, Callback<Void> callback)

Before calling this, call CollectorMetrics.incrementMessages(), and CollectorMetrics.incrementBytes(int). Do not call any other metrics callbacks as those are handled internal to this method.

Parameters:

serializedSpans - not empty message