Rework the delete everything in Redis example
This commit is contained in:
Ashley Frieze
parent
8c987e89c9
commit
8a771a8b46
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@ -4,3 +4,4 @@
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- [Introduction to Lettuce – the Java Redis Client](https://www.baeldung.com/java-redis-lettuce)
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- [List All Available Redis Keys](https://www.baeldung.com/redis-list-available-keys)
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- [Spring Data Redis’s Property-Based Configuration](https://www.baeldung.com/spring-data-redis-properties)
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- [Delete Everything in Redis](https://www.baeldung.com/redis-delete-data)
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@ -33,7 +33,8 @@
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<dependency>
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<groupId>redis.clients</groupId>
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<artifactId>jedis</artifactId>
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</dependency>
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<version>3.3.0</version>
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</dependency>
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<dependency>
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<groupId>com.github.kstyrc</groupId>
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<artifactId>embedded-redis</artifactId>
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@ -0,0 +1,91 @@
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package com.baeldung.redis.deleteeverything;
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import org.junit.*;
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import redis.clients.jedis.Jedis;
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import redis.embedded.RedisServer;
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import java.io.IOException;
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import java.net.ServerSocket;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNull;
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public class DeleteEverythingInRedisIntegrationTest {
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private Jedis jedis;
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private RedisServer redisServer;
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private int port;
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@Before
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public void setUp() throws IOException {
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// Take an available port
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ServerSocket s = new ServerSocket(0);
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port = s.getLocalPort();
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s.close();
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redisServer = new RedisServer(port);
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redisServer.start();
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// Configure JEDIS
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jedis = new Jedis("localhost", port);
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}
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@After
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public void destroy() {
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redisServer.stop();
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}
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@Test
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public void whenPutDataIntoRedis_thenCanBeFound() {
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String key = "key";
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String value = "value";
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jedis.set(key, value);
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String received = jedis.get(key);
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assertEquals(value, received);
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}
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@Test
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public void whenPutDataIntoRedisAndThenFlush_thenCannotBeFound() {
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String key = "key";
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String value = "value";
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jedis.set(key, value);
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jedis.flushDB();
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String received = jedis.get(key);
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assertNull(received);
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}
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@Test
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public void whenPutDataIntoMultipleDatabases_thenFlushAllRemovesAll() {
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// add keys in different databases
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jedis.select(0);
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jedis.set("key1", "value1");
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jedis.select(1);
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jedis.set("key2", "value2");
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// we'll find the correct keys in the correct dbs
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jedis.select(0);
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assertEquals("value1", jedis.get("key1"));
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assertNull(jedis.get("key2"));
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jedis.select(1);
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assertEquals("value2", jedis.get("key2"));
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assertNull(jedis.get("key1"));
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// then, when we flush
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jedis.flushAll();
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// the keys will have gone
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jedis.select(0);
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assertNull(jedis.get("key1"));
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assertNull(jedis.get("key2"));
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jedis.select(1);
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assertNull(jedis.get("key1"));
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assertNull(jedis.get("key2"));
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}
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}
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@ -4,7 +4,6 @@
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- [Introduction to Spring Data Redis](https://www.baeldung.com/spring-data-redis-tutorial)
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- [PubSub Messaging with Spring Data Redis](https://www.baeldung.com/spring-data-redis-pub-sub)
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- [An Introduction to Spring Data Redis Reactive](https://www.baeldung.com/spring-data-redis-reactive)
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- [Delete Everything in Redis](https://www.baeldung.com/redis-delete-data)
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### Build the Project with Tests Running
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```
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@ -15,4 +14,3 @@ mvn clean install
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```
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mvn test
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```
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@ -35,18 +35,6 @@ public class RedisConfig {
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template.setValueSerializer(new GenericToStringSerializer<Object>(Object.class));
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return template;
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}
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@Bean
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public LettuceConnectionFactory lettuceConnectionFactory() {
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return new LettuceConnectionFactory();
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}
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@Bean(name = "flushRedisTemplate")
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public RedisTemplate<String, String> flushRedisTemplate() {
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RedisTemplate<String, String> template = new RedisTemplate<>();
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template.setConnectionFactory(lettuceConnectionFactory());
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return template;
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}
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@Bean
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MessageListenerAdapter messageListener() {
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@ -1,92 +0,0 @@
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package com.baeldung.spring.data.redis.delete;
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import static org.assertj.core.api.Assertions.assertThat;
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import java.io.IOException;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.dao.DataAccessException;
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import org.springframework.data.redis.connection.RedisConnection;
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import org.springframework.data.redis.core.RedisCallback;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.data.redis.core.ValueOperations;
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import org.springframework.test.annotation.DirtiesContext;
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import org.springframework.test.annotation.DirtiesContext.ClassMode;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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import com.baeldung.spring.data.redis.config.RedisConfig;
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import redis.embedded.RedisServer;
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@RunWith(SpringJUnit4ClassRunner.class)
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@ContextConfiguration(classes = { RedisConfig.class })
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@DirtiesContext(classMode = ClassMode.BEFORE_CLASS)
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public class RedisFlushDatabaseIntegrationTest {
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private RedisServer redisServer;
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@Autowired
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@Qualifier("flushRedisTemplate")
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private RedisTemplate<String, String> flushRedisTemplate;
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@Before
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public void setup() throws IOException {
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redisServer = new RedisServer(6390);
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redisServer.start();
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}
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@After
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public void tearDown() {
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redisServer.stop();
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}
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@Test
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public void whenFlushDB_thenAllKeysInDatabaseAreCleared() {
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ValueOperations<String, String> simpleValues = flushRedisTemplate.opsForValue();
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String key = "key";
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String value = "value";
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simpleValues.set(key, value);
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assertThat(simpleValues.get(key)).isEqualTo(value);
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flushRedisTemplate.execute(new RedisCallback<Void>() {
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@Override
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public Void doInRedis(RedisConnection connection) throws DataAccessException {
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connection.flushDb();
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return null;
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}
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});
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assertThat(simpleValues.get(key)).isNull();
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}
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@Test
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public void whenFlushAll_thenAllKeysInDatabasesAreCleared() {
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ValueOperations<String, String> simpleValues = flushRedisTemplate.opsForValue();
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String key = "key";
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String value = "value";
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simpleValues.set(key, value);
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assertThat(simpleValues.get(key)).isEqualTo(value);
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flushRedisTemplate.execute(new RedisCallback<Void>() {
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@Override
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public Void doInRedis(RedisConnection connection) throws DataAccessException {
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connection.flushAll();
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return null;
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}
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});
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assertThat(simpleValues.get(key)).isNull();
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}
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}
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