From 369655aa02adf178b3d813edbc97ee603a963ffc Mon Sep 17 00:00:00 2001 From: pcoates33 Date: Mon, 21 Jan 2019 08:14:06 +0000 Subject: [PATCH] spring-boot ehcache example added (#6136) --- .../cachetest/config/CacheConfig.java | 49 +------------------ .../cachetest/config/CacheEventLogger.java | 11 ++--- .../cachetest/rest/NumberController.java | 16 +++--- .../cachetest/service/NumberService.java | 15 +++--- .../src/main/resources/application.properties | 1 + spring-ehcache/src/main/resources/ehcache.xml | 31 ++++++++++++ 6 files changed, 54 insertions(+), 69 deletions(-) create mode 100644 spring-ehcache/src/main/resources/application.properties create mode 100644 spring-ehcache/src/main/resources/ehcache.xml diff --git a/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheConfig.java b/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheConfig.java index 3cf2309cb9..5e72b5dcfc 100644 --- a/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheConfig.java +++ b/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheConfig.java @@ -1,57 +1,10 @@ package com.baeldung.cachetest.config; -import java.math.BigDecimal; -import java.time.Duration; - -import javax.cache.CacheManager; - -import org.ehcache.config.CacheConfiguration; -import org.ehcache.config.ResourcePools; -import org.ehcache.config.builders.CacheConfigurationBuilder; -import org.ehcache.config.builders.CacheEventListenerConfigurationBuilder; -import org.ehcache.config.builders.ExpiryPolicyBuilder; -import org.ehcache.config.builders.ResourcePoolsBuilder; -import org.ehcache.config.units.EntryUnit; -import org.ehcache.config.units.MemoryUnit; -import org.ehcache.event.EventType; -import org.ehcache.jsr107.Eh107Configuration; -import org.springframework.boot.autoconfigure.cache.JCacheManagerCustomizer; import org.springframework.cache.annotation.EnableCaching; -import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration @EnableCaching public class CacheConfig { - - private static final int ON_HEAP_CACHE_SIZE_ENTRIES = 2; - private static final int OFF_HEAP_CACHE_SIZE_MB = 10; - private static final int CACHE_EXPIRY_SECONDS = 30; - - @Bean - public JCacheManagerCustomizer jcacheManagerCustomizer() { - return new JCacheManagerCustomizer() { - - @Override - public void customize(CacheManager cacheManager) { - ResourcePools resourcePools = ResourcePoolsBuilder.newResourcePoolsBuilder() - .heap(ON_HEAP_CACHE_SIZE_ENTRIES, EntryUnit.ENTRIES) - .offheap(OFF_HEAP_CACHE_SIZE_MB, MemoryUnit.MB).build(); - - CacheEventListenerConfigurationBuilder eventLoggerConfig = CacheEventListenerConfigurationBuilder - .newEventListenerConfiguration(new CacheEventLogger(), EventType.CREATED, EventType.EXPIRED) - .unordered().asynchronous(); - - CacheConfiguration cacheConfiguration = CacheConfigurationBuilder - .newCacheConfigurationBuilder(Long.class, BigDecimal.class, resourcePools) - .withExpiry(ExpiryPolicyBuilder.timeToLiveExpiration(Duration.ofSeconds(CACHE_EXPIRY_SECONDS))) - .add(eventLoggerConfig).build(); - - cacheManager.createCache("squareCache", - Eh107Configuration.fromEhcacheCacheConfiguration(cacheConfiguration)); - - } - }; - } - + } diff --git a/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheEventLogger.java b/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheEventLogger.java index c8ead85f1e..dcaec57010 100644 --- a/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheEventLogger.java +++ b/spring-ehcache/src/main/java/com/baeldung/cachetest/config/CacheEventLogger.java @@ -7,12 +7,11 @@ import org.slf4j.LoggerFactory; public class CacheEventLogger implements CacheEventListener { - private static final Logger log = LoggerFactory.getLogger(CacheEventLogger.class); + private static final Logger log = LoggerFactory.getLogger(CacheEventLogger.class); - @Override - public void onEvent(CacheEvent cacheEvent) { - log.info("Cache event {} for item with key {}. Old value = {}, New value = {}", cacheEvent.getType(), - cacheEvent.getKey(), cacheEvent.getOldValue(), cacheEvent.getNewValue()); - } + @Override + public void onEvent(CacheEvent cacheEvent) { + log.info("Cache event {} for item with key {}. Old value = {}, New value = {}", cacheEvent.getType(), cacheEvent.getKey(), cacheEvent.getOldValue(), cacheEvent.getNewValue()); + } } diff --git a/spring-ehcache/src/main/java/com/baeldung/cachetest/rest/NumberController.java b/spring-ehcache/src/main/java/com/baeldung/cachetest/rest/NumberController.java index 4115c34cc4..15b5c93dfe 100644 --- a/spring-ehcache/src/main/java/com/baeldung/cachetest/rest/NumberController.java +++ b/spring-ehcache/src/main/java/com/baeldung/cachetest/rest/NumberController.java @@ -15,15 +15,15 @@ import com.baeldung.cachetest.service.NumberService; @RequestMapping(path = "/number", produces = MediaType.APPLICATION_JSON_UTF8_VALUE) public class NumberController { - private final static Logger log = LoggerFactory.getLogger(NumberController.class); + private final static Logger log = LoggerFactory.getLogger(NumberController.class); - @Autowired - private NumberService numberService; + @Autowired + private NumberService numberService; - @GetMapping(path = "/square/{number}") - public String getThing(@PathVariable Long number) { - log.info("call numberService to square {}", number); - return String.format("{\"square\": %s}", numberService.square(number)); - } + @GetMapping(path = "/square/{number}") + public String getThing(@PathVariable Long number) { + log.info("call numberService to square {}", number); + return String.format("{\"square\": %s}", numberService.square(number)); + } } diff --git a/spring-ehcache/src/main/java/com/baeldung/cachetest/service/NumberService.java b/spring-ehcache/src/main/java/com/baeldung/cachetest/service/NumberService.java index bcd930f5e1..45fb841867 100644 --- a/spring-ehcache/src/main/java/com/baeldung/cachetest/service/NumberService.java +++ b/spring-ehcache/src/main/java/com/baeldung/cachetest/service/NumberService.java @@ -10,13 +10,14 @@ import org.springframework.stereotype.Service; @Service public class NumberService { - private final static Logger log = LoggerFactory.getLogger(NumberService.class); + private final static Logger log = LoggerFactory.getLogger(NumberService.class); - @Cacheable(value = "squareCache", key = "#number", condition = "#number>10") - public BigDecimal square(Long number) { - BigDecimal square = BigDecimal.valueOf(number).multiply(BigDecimal.valueOf(number)); - log.info("square of {} is {}", number, square); - return square; - } + @Cacheable(value = "squareCache", key = "#number", condition = "#number>10") + public BigDecimal square(Long number) { + BigDecimal square = BigDecimal.valueOf(number) + .multiply(BigDecimal.valueOf(number)); + log.info("square of {} is {}", number, square); + return square; + } } diff --git a/spring-ehcache/src/main/resources/application.properties b/spring-ehcache/src/main/resources/application.properties new file mode 100644 index 0000000000..a5c2964d32 --- /dev/null +++ b/spring-ehcache/src/main/resources/application.properties @@ -0,0 +1 @@ +spring.cache.jcache.config=classpath:ehcache.xml \ No newline at end of file diff --git a/spring-ehcache/src/main/resources/ehcache.xml b/spring-ehcache/src/main/resources/ehcache.xml new file mode 100644 index 0000000000..caba0f2cc4 --- /dev/null +++ b/spring-ehcache/src/main/resources/ehcache.xml @@ -0,0 +1,31 @@ + + + + java.lang.Long + java.math.BigDecimal + + 30 + + + + + com.baeldung.cachetest.config.CacheEventLogger + ASYNCHRONOUS + UNORDERED + CREATED + EXPIRED + + + + + 2 + 10 + + + + \ No newline at end of file