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Improve documentation for JDBC JSON Serialization. #2967

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May 9, 2024
Merged

Improve documentation for JDBC JSON Serialization. #2967

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23 changes: 22 additions & 1 deletion spring-session-docs/modules/ROOT/pages/configuration/jdbc.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -159,9 +159,17 @@ public class QueryCustomizer
DO NOTHING
""";

private static final String UPDATE_SESSION_ATTRIBUTE_QUERY = """
UPDATE %TABLE_NAME%_ATTRIBUTES
SET ATTRIBUTE_BYTES = encode(?, 'escape')::jsonb
WHERE SESSION_PRIMARY_ID = ?
AND ATTRIBUTE_NAME = ?
""";

@Override
public void customize(JdbcIndexedSessionRepository sessionRepository) {
sessionRepository.setCreateSessionAttributeQuery(CREATE_SESSION_ATTRIBUTE_QUERY);
sessionRepository.setUpdateSessionAttributeQuery(UPDATE_SESSION_ATTRIBUTE_QUERY);
}

}
Expand Down Expand Up @@ -230,7 +238,10 @@ public class SessionConfig implements BeanClassLoaderAware {
@Bean("springSessionConversionService")
public GenericConversionService springSessionConversionService(ObjectMapper objectMapper) { <1>
ObjectMapper copy = objectMapper.copy(); <2>
// Register Spring Security Jackson Modules
copy.registerModules(SecurityJackson2Modules.getModules(this.classLoader)); <3>
// Activate default typing explicitly if not using Spring Security
// copy.activateDefaultTyping(copy.getPolymorphicTypeValidator(), ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
GenericConversionService converter = new GenericConversionService();
converter.addConverter(Object.class, byte[].class, new SerializingConverter(new JsonSerializer(copy))); <4>
converter.addConverter(byte[].class, Object.class, new DeserializingConverter(new JsonDeserializer(copy))); <4>
Expand Down Expand Up @@ -301,9 +312,19 @@ public class SessionConfig {
VALUES (?, ?, encode(?, 'escape')::jsonb) <1>
""";

private static final String UPDATE_SESSION_ATTRIBUTE_QUERY = """
UPDATE %TABLE_NAME%_ATTRIBUTES
SET ATTRIBUTE_BYTES = encode(?, 'escape')::jsonb
WHERE SESSION_PRIMARY_ID = ?
AND ATTRIBUTE_NAME = ?
""";

@Bean
SessionRepositoryCustomizer<JdbcIndexedSessionRepository> customizer() {
return (sessionRepository) -> sessionRepository.setCreateSessionAttributeQuery(CREATE_SESSION_ATTRIBUTE_QUERY);
return (sessionRepository) -> {
sessionRepository.setCreateSessionAttributeQuery(CREATE_SESSION_ATTRIBUTE_QUERY);
sessionRepository.setUpdateSessionAttributeQuery(UPDATE_SESSION_ATTRIBUTE_QUERY);
};
}

}
Expand Down