io.envoyproxy.controlplane.server.serializer

Class CachedProtoResourcesSerializer

java.lang.Object

io.envoyproxy.controlplane.server.serializer.CachedProtoResourcesSerializer

All Implemented Interfaces:

ProtoResourcesSerializer

public class CachedProtoResourcesSerializer
extends Object
implements ProtoResourcesSerializer

Cached version of the ProtoResourcesSerializer. It uses Guava Cache with weak values to store the serialized messages. The weak values are used so it's possible to share the same proto instance between snapshots that are kept in the memory. The improvement especially visible when the same message is send to multiple Envoys. The message is then only serialized once as long as it's referenced anywhere else. The same instance is used not only between snapshots for different groups but also between subsequent snapshots for the same group, because the last serialized proto instance of DiscoveryResponse is set in DiscoveryRequestStreamObserver#latestResponse.

Nested Class Summary

Nested classes/interfaces inherited from interface io.envoyproxy.controlplane.server.serializer.ProtoResourcesSerializer

ProtoResourcesSerializer.ProtoSerializerException

Constructor Summary

Constructors

Constructor and Description
CachedProtoResourcesSerializer()

Method Summary

Modifier and Type	Method and Description
com.google.protobuf.Any	serialize(com.google.protobuf.Message resource) Serialize message to proto buffers.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.envoyproxy.controlplane.server.serializer.ProtoResourcesSerializer

serialize

Constructor Detail

CachedProtoResourcesSerializer

public CachedProtoResourcesSerializer()

Method Detail

serialize

public com.google.protobuf.Any serialize(com.google.protobuf.Message resource)

Serialize message to proto buffers.

Specified by:

serialize in interface ProtoResourcesSerializer

Parameters:

resource - the resource to serialize

Returns:

serialized resource