Package org.apache.tinkerpop.gremlin.server.handler

Class StateKey

java.lang.Object

org.apache.tinkerpop.gremlin.server.handler.StateKey

public final class StateKey
extends Object

Keys used in the various handlers to store state in the pipeline.

Author:

Stephen Mallette (http://stephen.genoprime.com)

Field Summary

Fields

Modifier and Type	Field	Description
static final io.netty.util.AttributeKey<AuthenticatedUser>	AUTHENTICATED_USER	The key for the current AuthenticatedUser.
static final io.netty.util.AttributeKey<io.netty.handler.codec.http.HttpHeaders>	REQUEST_HEADERS	The key for the current request headers.
static final io.netty.util.AttributeKey<UUID>	REQUEST_ID	The key for the current request ID.
static final io.netty.util.AttributeKey<org.apache.tinkerpop.gremlin.server.handler.HttpResponseCoordinator>	RESPONSE_COORDINATOR	The key for the in-flight request's HttpResponseCoordinator.
static final io.netty.util.AttributeKey<org.javatuples.Pair<String,MessageSerializer<?>>>	SERIALIZER	The key for the current serializer requested by the client.

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

SERIALIZER

public static final io.netty.util.AttributeKey<org.javatuples.Pair<String,MessageSerializer<?>>> SERIALIZER

The key for the current serializer requested by the client.

REQUEST_HEADERS

public static final io.netty.util.AttributeKey<io.netty.handler.codec.http.HttpHeaders> REQUEST_HEADERS

The key for the current request headers.

REQUEST_ID

public static final io.netty.util.AttributeKey<UUID> REQUEST_ID

The key for the current request ID.

AUTHENTICATED_USER

public static final io.netty.util.AttributeKey<AuthenticatedUser> AUTHENTICATED_USER

The key for the current AuthenticatedUser.

RESPONSE_COORDINATOR

public static final io.netty.util.AttributeKey<org.apache.tinkerpop.gremlin.server.handler.HttpResponseCoordinator> RESPONSE_COORDINATOR

The key for the in-flight request's HttpResponseCoordinator. Cleared at request start (alongside the in-use flag) and set by HttpGremlinEndpointHandler once a request reaches the endpoint and a coordinator is created. It lets exceptionCaught route a late pipeline error through the coordinator so it terminates an already-started chunked stream rather than writing a second, conflicting response. When absent — the error arrived before the endpoint ran, so no response has started — the error path falls back to a self-contained sendError.