Polish cache sample
Update single cache sample with all supported cache providers. Add README to shortly explain how to get started with them. See gh-2633
This commit is contained in:
Stephane Nicoll
@@ -16,20 +16,34 @@
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package sample;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cache.annotation.EnableCaching;
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import java.io.Serializable;
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/**
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* @author Eddú Meléndez
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* @since 1.3.0
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*/
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@EnableCaching
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@SpringBootApplication
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public class SampleEhCacheCacheApplication {
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@SuppressWarnings("serial")
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public class Country implements Serializable {
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public static void main(String[] args) {
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SpringApplication.run(SampleEhCacheCacheApplication.class);
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private final String code;
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public Country(String code) {
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this.code = code;
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}
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public String getCode() {
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return code;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Country country = (Country) o;
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return code.equals(country.code);
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}
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@Override
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public int hashCode() {
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return code.hashCode();
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}
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}
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@@ -16,23 +16,19 @@
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package sample;
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import org.springframework.cache.annotation.Cacheable;
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import javax.cache.annotation.CacheDefaults;
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import javax.cache.annotation.CacheResult;
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import org.springframework.stereotype.Component;
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import java.util.Arrays;
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import java.util.List;
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/**
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* @author Eddú Meléndez
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* @since 1.3.0
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*/
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@Component
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public class CountryService {
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@CacheDefaults(cacheName = "countries")
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public class CountryRepository {
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@Cacheable("countries")
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public List<String> countries() {
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System.out.println("Loading countries");
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return Arrays.asList("Perú", "United States");
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@CacheResult
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public Country findByCode(String code) {
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System.out.println("---> Loading country with code '" + code + "'");
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return new Country(code);
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}
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}
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@@ -0,0 +1,63 @@
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.builder.SpringApplicationBuilder;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.annotation.EnableCaching;
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import org.springframework.scheduling.annotation.EnableScheduling;
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import org.springframework.stereotype.Component;
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@EnableCaching
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@EnableScheduling
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@SpringBootApplication
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public class SampleCacheApplication {
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private static final Logger logger = LoggerFactory.getLogger(SampleCacheApplication.class);
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public static void main(String[] args) {
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new SpringApplicationBuilder()
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.sources(SampleCacheApplication.class)
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.profiles("app")
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.run(args);
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}
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@Component
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static class CacheManagerCheck implements CommandLineRunner {
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private final CacheManager cacheManager;
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@Autowired
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CacheManagerCheck(CacheManager cacheManager) {
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this.cacheManager = cacheManager;
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}
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@Override
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public void run(String... strings) throws Exception {
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logger.info("\n\n" + "=========================================================\n"
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+ "Using cache manager: " + this.cacheManager.getClass().getName() + "\n"
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+ "=========================================================\n\n");
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}
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}
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}
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@@ -0,0 +1,67 @@
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Random;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Profile;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Component;
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@Component
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@Profile("app")
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class SampleClient {
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private static final List<String> SAMPLE_COUNTRY_CODES = Arrays.asList("AF", "AX", "AL", "DZ", "AS",
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"AD", "AO", "AI", "AQ", "AG", "AR", "AM", "AW", "AU", "AT", "AZ", "BS", "BH", "BD", "BB", "BY",
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"BE", "BZ", "BJ", "BM", "BT", "BO", "BQ", "BA", "BW", "BV", "BR", "IO", "BN", "BG", "BF", "BI",
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"KH", "CM", "CA", "CV", "KY", "CF", "TD", "CL", "CN", "CX", "CC", "CO", "KM", "CG", "CD", "CK",
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"CR", "CI", "HR", "CU", "CW", "CY", "CZ", "DK", "DJ", "DM", "DO", "EC", "EG", "SV", "GQ", "ER",
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"EE", "ET", "FK", "FO", "FJ", "FI", "FR", "GF", "PF", "TF", "GA", "GM", "GE", "DE", "GH", "GI",
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"GR", "GL", "GD", "GP", "GU", "GT", "GG", "GN", "GW", "GY", "HT", "HM", "VA", "HN", "HK", "HU",
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"IS", "IN", "ID", "IR", "IQ", "IE", "IM", "IL", "IT", "JM", "JP", "JE", "JO", "KZ", "KE", "KI",
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"KP", "KR", "KW", "KG", "LA", "LV", "LB", "LS", "LR", "LY", "LI", "LT", "LU", "MO", "MK", "MG",
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"MW", "MY", "MV", "ML", "MT", "MH", "MQ", "MR", "MU", "YT", "MX", "FM", "MD", "MC", "MN", "ME",
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"MS", "MA", "MZ", "MM", "NA", "NR", "NP", "NL", "NC", "NZ", "NI", "NE", "NG", "NU", "NF", "MP",
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"NO", "OM", "PK", "PW", "PS", "PA", "PG", "PY", "PE", "PH", "PN", "PL", "PT", "PR", "QA", "RE",
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"RO", "RU", "RW", "BL", "SH", "KN", "LC", "MF", "PM", "VC", "WS", "SM", "ST", "SA", "SN", "RS",
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"SC", "SL", "SG", "SX", "SK", "SI", "SB", "SO", "ZA", "GS", "SS", "ES", "LK", "SD", "SR", "SJ",
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"SZ", "SE", "CH", "SY", "TW", "TJ", "TZ", "TH", "TL", "TG", "TK", "TO", "TT", "TN", "TR", "TM",
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"TC", "TV", "UG", "UA", "AE", "GB", "US", "UM", "UY", "UZ", "VU", "VE", "VN", "VG", "VI", "WF",
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"EH", "YE", "ZM", "ZW");
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private final CountryRepository countryService;
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private final Random random;
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@Autowired
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public SampleClient(CountryRepository countryService) {
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this.countryService = countryService;
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this.random = new Random();
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}
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@Scheduled(fixedDelay = 500)
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public void retrieveCountry() {
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String randomCode = SAMPLE_COUNTRY_CODES.get(random.nextInt(SAMPLE_COUNTRY_CODES.size()));
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System.out.println("Looking for country with code '" + randomCode + "'");
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this.countryService.findByCode(randomCode);
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}
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}
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@@ -1,41 +0,0 @@
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/*
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* Copyright 2012-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.CommandLineRunner;
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import org.springframework.stereotype.Component;
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/**
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* @author Eddú Meléndez
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* @since 1.3.0
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*/
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@Component
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public class Startup implements CommandLineRunner {
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@Autowired
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private CountryService countryService;
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@Override
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public void run(String... args) throws Exception {
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System.out.println("---- calling country service");
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System.out.println(countryService.countries());
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System.out.println("---- calling country service again from cache.");
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System.out.println(countryService.countries());
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}
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}
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