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Micronaut is a microservice microservice framework for building moudlar applications. This develops a module to configure and setup ignite to work with Micronaut and it's associated API's.
Configuration to load Ignite instance.
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language | java |
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title | IgniteClientConfiguration |
collapse | true |
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configuration that bests works with Micronaut.
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ignite: enabled: true clients: default: path: "classpath:a.cfg" other: path: "classpath:b.cfg" |
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A bean for the IgniteConfiguration an IgniteConfiguration can be provided from a factory.
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@Factory public class IgniteInitialMyFactory { @Singleton @Bean @Primary @Named("default") IgniteConfiguration defaultConfiguration() { IgniteConfiguration cfg = new IgniteConfiguration(); // The node will be started as a client node. cfg.setClientMode(true); // Setting up an IP Finder to ensure the client can locate the servers. TcpDiscoveryMulticastIpFinder ipFinder = new TcpDiscoveryMulticastIpFinder(); ipFinder.setAddresses(Collections.singletonList("localhost:47500..47509")); cfg.setDiscoverySpi(new TcpDiscoverySpi().setIpFinder(ipFinder)); return cfg; } } |
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Micronaut cache configuration cache is covered under snapshot documentation. By default the primary Ignite instance is used for Micronaut cache and the key from for each cache operation will use name of refer to the IgniteCache instance.
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@Singleton @CacheConfig('counter') static class CounterService { Map<String, Integer> counters = new LinkedHashMap<>() Map<String, Integer> counters2 = new LinkedHashMap<>() int incrementNoCache(String name) { int value = counters.computeIfAbsent(name, { 0 }) counters.put(name, ++value) return value } @CachePut int increment(String name) { int value = counters.computeIfAbsent(name, { 0 }) counters.put(name, ++value) return value } @PutOperations([ @CachePut('counter'), @CachePut('counter2') ]) int increment2(String name) { int value = counters2.computeIfAbsent(name, { 0 }) counters2.put(name, ++value) return value } @Cacheable CompletableFuture<Integer> futureValue(String name) { return CompletableFuture.completedFuture(counters.computeIfAbsent(name, { 0 })) } @Cacheable @SingleResult Flowable<Integer> flowableValue(String name) { return Flowable.just(counters.computeIfAbsent(name, { 0 })) } @Cacheable Single<Integer> singleValue(String name) { return Single.just(counters.computeIfAbsent(name, { 0 })) } @CachePut CompletableFuture<Integer> futureIncrement(String name) { int value = counters.computeIfAbsent(name, { 0 }) counters.put(name, ++value) return CompletableFuture.completedFuture(value) } @Cacheable int getValue(String name) { return counters.computeIfAbsent(name, { 0 }) } @Cacheable('counter2') int getValue2(String name) { return counters2.computeIfAbsent(name, { 0 }) } @Cacheable Optional<Integer> getOptionalValue(String name) { return Optional.ofNullable(counters.get(name)) } @CacheInvalidate(all = true) void reset() { counters.clear() } @CacheInvalidate void reset(String name) { counters.remove(name) } @InvalidateOperations([ @CacheInvalidate('counter'), @CacheInvalidate('counter2') ]) void reset2(String name) { counters.remove(name) } @CacheInvalidate(parameters = 'name') void set(String name, int val) { counters.put(name, val) } } |