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Add optional Hazelcast session serializer

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Issue gh-1131
This commit is contained in:
Enes Ozcan
2020-09-08 14:31:32 +03:00
committed by GitHub
parent 0819988a15
commit cc85e927cd
5 changed files with 279 additions and 2 deletions
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9
spring-session-docs/src/docs/asciidoc/guides/java-hazelcast.adoc
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@@ -97,11 +97,18 @@ The filter is in charge of replacing the `HttpSession` implementation to be back
In this instance, Spring Session is backed by Hazelcast.
<2> In order to support retrieval of sessions by principal name index, an appropriate `ValueExtractor` needs to be registered.
Spring Session provides `PrincipalNameExtractor` for this purpose.
<3> We create a `HazelcastInstance` that connects Spring Session to Hazelcast.
<3> In order to serialize `MapSession` objects efficiently, `HazelcastSessionSerializer` needs to be registered. If this
is not set, Hazelcast will serialize sessions using native Java serialization.
<4> We create a `HazelcastInstance` that connects Spring Session to Hazelcast.
By default, the application starts and connects to an embedded instance of Hazelcast.
For more information on configuring Hazelcast, see the https://docs.hazelcast.org/docs/{hazelcast-version}/manual/html-single/index.html#hazelcast-configuration[reference documentation].
====
NOTE: If `HazelcastSessionSerializer` is preferred, it needs to be configured for all Hazelcast cluster members before they start.
In a Hazelcast cluster, all members should use the same serialization method for sessions. Also, if Hazelcast Client/Server topology
is used, then both members and clients must use the same serialization method. The serializer can be registered via `ClientConfig`
with the same `SerializerConfiguration` of members.
== Servlet Container Initialization
Our <<security-spring-configuration,Spring Configuration>> created a Spring bean named `springSessionRepositoryFilter` that implements `Filter`.

8
spring-session-docs/src/test/java/docs/http/HazelcastHttpSessionConfig.java
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@@ -19,12 +19,15 @@ package docs.http;
import com.hazelcast.config.Config;
import com.hazelcast.config.MapAttributeConfig;
import com.hazelcast.config.MapIndexConfig;
import com.hazelcast.config.SerializerConfig;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.session.MapSession;
import org.springframework.session.hazelcast.HazelcastIndexedSessionRepository;
import org.springframework.session.hazelcast.HazelcastSessionSerializer;
import org.springframework.session.hazelcast.PrincipalNameExtractor;
import org.springframework.session.hazelcast.config.annotation.web.http.EnableHazelcastHttpSession;
@@ -42,7 +45,10 @@ public class HazelcastHttpSessionConfig {
config.getMapConfig(HazelcastIndexedSessionRepository.DEFAULT_SESSION_MAP_NAME) // <2>
.addMapAttributeConfig(attributeConfig).addMapIndexConfig(
new MapIndexConfig(HazelcastIndexedSessionRepository.PRINCIPAL_NAME_ATTRIBUTE, false));
return Hazelcast.newHazelcastInstance(config); // <3>
SerializerConfig serializerConfig = new SerializerConfig();
serializerConfig.setImplementation(new HazelcastSessionSerializer()).setTypeClass(MapSession.class);
config.getSerializationConfig().addSerializerConfig(serializerConfig); // <3>
return Hazelcast.newHazelcastInstance(config); // <4>
}
}