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Spring Data GemFire API Current and FutureJohn Blum - @john_blum
© 2015 - Pivotal Software, Inc.
3© 2014 Pivotal Software, Inc. All rights reserved.
Presenter
John BlumSpring Data Team (formerly a GemFire Engineer/Tech Lead)Spring Data GemFire Project LeadApache Geode Committer
Responsibilities…
• Management & Monitoring (Gfsh)
• Management REST API
• Developer REST API
• Spring Data GemFire (v1.3.3 – current)
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Agenda Spring Data GemFire API
– Configuration / Bootstrapping– Data Access (DAO patterns)– Function Execution– Caching (JSR-107)
Spring Data GemFire Future– Spring Data Geode?
Conclusion QA
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“Simple things should be simple; complex things should be possible”
– Alan Kay
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Spring Data GemFire (SDG)Applies Spring's powerful, non-invasive programming model in a consistent fashion to simplify configuration and development of Apache Geode applications.
Spring Ecosystem Integration…– Spring Cache Abstraction / Transaction Management– Spring Data Commons Repository Abstraction + REST– Spring Integration (Inbound/Outbound Channel Adapters)– Spring Session Data GemFire Adapter– Spring XD (Sources & Sinks)
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+ +
Apache Geode with Spring Data GemFire and Spring’s Cache Abstraction is a JSR-107 (JCache) caching provider
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GRAILS
Full-stack, Web
XD
Stream, Taps, Jobs
BOOT
Bootable, Minimal, Ops-Ready
Big, Fast,
FlexibleData Web,
Integration,Batch
WEB
Controllers, REST,WebSocket
INTEGRATION
Channels, Adapters,Filters, Transformers
BATCH
Jobs, Steps,Readers, Writers
BIG DATA
Ingestion, Export,Orchestration, Hadoop
DATA
NON-RELATIONALRELATIONAL
CORE
GROOVYFRAMEWORK SECURITY REACTOR
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Spring Data GemFire Use Cases
Configure & Bootstrap Apache Geode– Replacement for cache.xml; Can be used with Cluster Configuration
Build an Application Peer Cache (Cache)– Embedded Cache
Build an Application Cache Client (ClientCache)– Client/Server
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Spring Data GemFire / Apache Geode Coordinates
<repository> <id>spring-libs-snapshot</id> <name>Spring Maven libs-snapshot Repository</name> <url>https://repo.spring.io/libs-miletone</url></repository>
<dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-gemfire</artifactId> <version>1.7.0.APACHE-GEODE-EA-M1</version></dependency>
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Spring-based Configuration
XML Java-based Configuration
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Bootstrapping Apache Geode with Spring
@SpringBootApplication@ImportResource("/spring-gemfire-context.xml")public class SpringGemFireApplication { public static void main(String[] args) { SpringApplication.run(SpringGemFireApplication.class, args); }}
gfsh>start server -–name=Example --spring-xml-location= <classpath-to-spring-application-context.xml>
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Example
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Data Access with Spring
Basic (Region) Data Access Object (DAO)…
@Repositorypublic class GolferDao extends DaoSupport {
@Resource(name = “Golfers”) private Region<Long, Golfer> golfers;
…}
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Data Access with SDG GemfireTemplate
Advantages Simple, Convenient Data Access API (CRUD, OQL, Function)
Protects developer from GemFire/Geode API changes
Exception Translation into Spring DAO Exception Hierarchy
Transaction Management
<bean id=“golfersTemplate” class=“org.springframework.data.gemfire.GemfireTemplate” p:region-ref=“Golfers”/>
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Data Access with Spring Data Repositories
Advantages Simple interface-based, Spring Data Repository definition (CRUD, Querying)
Convention over Configuration (Querying)
Portable
Exception Translation & Transaction Management Support
public interface GolferRepository extends CrudRepository<Golfer, Long> {
List<Golfer> findByName(String name);
}
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Example
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Annotation-based Function SupportSpring Data GemFire introduces annotation support for Function implementation and execution.
Functions are implemented as POJO methods
Functions are invoked using Object-Oriented method invocation.
SDG supports…
@OnServer / @OnServers (from client only)
@OnMember / @OnMembers (from peer only)
@OnRegion (from either client or peer)
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Annotation-based Function Implementationpackage example.app.function;
@Componentclass CustomerFunctions {
@GemfireFunction public Customer update(Address address, PhoneNumber phoneNumber) { … }
@GemfireFunction(id = “MyFunction” HA=true) public List<?> functionTwo(FunctionContext funcCtx, @Filter Set<?> keys, …) { … }
}
<gfe:annotation-driven/>
<!– optional when using <context:annotation-config> or <context:component-scan> --><bean class=“example.app.function.CustomerFunctions”/>
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Annotation-based Function Executionpackage example.app.function.executions;
@OnRegion(“Customers”)interface CustomersFunctionExecution { Customer update(Address address, PhoneNumber phoneNumber);}
<gfe-data:function-executions base-package=“example.app.function.executions”/>
@Componentclass ApplicationComponent { @Autowired private CustomersFunctionExecution customersFunction;
public Customer someMethod(Address address, PhoneNumber phoneNumber) { return customersFunction.update(address, phoneNumber); }
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Example
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Spring Cache Abstraction
Caching is useful in cases when an “expensive” operation (i.e. CPU, IO bound) produces the same output given identical input; results can be reused.
Spring enables Declarative, Annotation-based Caching…
@Cacheable – triggers cache population
@CacheEvict – triggers cache eviction
@CachePut – updates cache without interfering with method execution
@Caching – groups multiple cache operations per method
@CacheConfig – class-level cache-related settings
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Spring Supports JSR-107 (JCache)
Spring JCache@Cacheable @CacheResult
@CachePut @CachePut
@CacheEvict @CacheRemove
@CacheEvict(allEntries=true) @CacheRemoveAll
@CacheConfig @CacheDefaults
http://docs.spring.io/spring/docs/current/spring-framework-reference/htmlsingle/#cache-jsr-107
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Apache Geode Caching Provider@Configuration@EnableCaching@Import(GemFireConfiguration.class)class ApplicationConfiguration {
@Bean public CacheManager cacheManager( Cache gemfireCache) {
GemfireCacheManager cacheManager = new GemfireCacheManager();
cacheManager.setCache(gemfireCache);
return cacheManager; }}
<beans … xmlns:cache=“http://www.springframework.org/schema/cache”…>
<gfe:cache properties-ref="gemfireProperties"/>
<cache:annotation-driven/>
<bean id="cacheManager" class= ”o.s.data.gemfire.support.GemfireCacheManager"
p:cache-ref="gemfireCache"/>
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Apache Geode Caching Example@Serviceclass BookService {
@Autowired private BookRepository bookRepository;
@Cacheable(value=“Books”, key=“#isbn”) public Book findBook(String isbn, …) { return bookRepository.findOne(isbn); }}
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Example
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Spring Data GemFire Road Map
Spring Data Geode?
Planned…• SGF-372 – Geode Off-Heap support
• SGF-401 – Geode-Spark Connector support
• SGF-402 – Geode-Lucene Connector support
• SGF-428 – Geode HDFS support
• SGF-451 – Context-Aware Repositories (Functions)
• SGF-452 – Function Execution from Repositories.
• SGF-453 – Annotation Support for Geode Callbacks (e.g. CacheListener)
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Conclusion
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Apache Geode References Project Page - http://geode.incubator.apache.org
Contribute - http://geode.incubator.apache.org/contribute/– Ideas - https://cwiki.apache.org/confluence/display/GEODE/How+to+Contribute
Community Events - http://geode.incubator.apache.org/community/
Documentation - http://geode.incubator.apache.org/docs/– Docs Project - https://github.com/project-geode/docs
Source Code - https://github.com/apache/incubator-geode
JIRA - https://issues.apache.org/jira/browse/GEODE
StackOverflow - http://stackoverflow.com/questions/tagged/gemfire+and+geode
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Spring Data GemFire References Project Page - http://projects.spring.io/spring-data/
Documentation –– Reference Guide - http://docs.spring.io/spring-data-gemfire/docs/current/reference/html/– API - http://docs.spring.io/spring-data-gemfire/docs/current/api/– Spring IO Guides - http://spring.io/guides– Spring GemFire Examples –
Source Code - https://github.com/spring-projects/spring-data-gemfire
Examples - https://github.com/spring-projects/spring-gemfire-examples
JIRA – https://jira.spring.io/browse/SGF
StackOverflow - http://stackoverflow.com/questions/tagged/spring-data-gemfire
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Other Spring GemFire/Geode Examples Effective Application Development with GemFire/Geode using Spring Data GemFire –
SpringOne2GX-2014 Dallas TX.– Slides: https://github.com/jxblum/effective-spring-gemfire/blob/master/EffectiveApplicationDevelopmentWithGemfireUsingSpringDataGemFire.pdf
– Source Code: https://github.com/jxblum/effective-spring-gemfire
Building Highly-Scalable Spring Applications with Apache Geode – SpringOne2GX-2015 Washington D.C.
– Slides: http://www.slideshare.net/john_blum/building-highly-scalable-spring-applications-using-inmemory-data-grids– Source Code: https://github.com/jxblum/scalable-spring-gemfire
Spring – GemFire/Geode Using Cluster Configuration Examples– Source Code: https://github.com/jxblum/spring-gemfire-clusterconfiguration-examples
GemFire or Geode Client/Server Configuration with Spring Examples– Source Code: https://github.com/jxblum/pivotal-gemfire-clientserver-examples
Join the Apache Geode Community!• Check out: http://geode.incubator.apache.org
• Subscribe: [email protected]
• Download: http://geode.incubator.apache.org/releases/
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Q&AAny questions…
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Thank You
