INT-4123: Add Prefix to the Key-Value MSs

Fixes spring-projects/spring-integration#2213
JIRA: https://jira.spring.io/browse/INT-4123

Fully different `MessageStore`s can be configured for the same shared
Key-Value data-base.
Since the retrieval logic is based on the keys, that may cause the
unexpected messages expiration via `MessageGroupStoreReaper`.

* To distinguish store instances on the shared store add `prefix`
option to the `AbstractKeyValueMessageStore`

* Deprecate the `GemfireMessageStore` `Cache`-based configuration - `setIgnoreJta()` and `afterPropertiesSet()`.
The `GemfireMessageStore` relies only on an externally configured `Region`.

**Cherry-pick to 4.3.x**

Doc Polishing

spring-integration-redis/src/main/java/org/springframework/integration/redis/store/RedisMessageStore.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2016 the original author or authors.
+ * Copyright 2007-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,13 +35,34 @@ import org.springframework.util.Assert;
  *
  * @author Oleg Zhurakousky
  * @author Gary Russell
+ * @author Artem Bilan
+ *
  * @since 2.1
  */
 public class RedisMessageStore extends AbstractKeyValueMessageStore {
 
 	private final RedisTemplate<Object, Object> redisTemplate;
 
+	/**
+	 * Construct {@link RedisMessageStore} based on the provided
+	 * {@link RedisConnectionFactory} and default empty prefix.
+	 * @param connectionFactory the RedisConnectionFactory to use
+	 */
 	public RedisMessageStore(RedisConnectionFactory connectionFactory) {
+		this(connectionFactory, "");
+	}
+
+	/**
+	 * Construct {@link RedisMessageStore} based on the provided
+	 * {@link RedisConnectionFactory} and prefix.
+	 * @param connectionFactory the RedisConnectionFactory to use
+	 * @param prefix the key prefix to use, allowing the same broker to be used for
+	 * multiple stores.
+	 * @since 4.3.12
+	 * @see AbstractKeyValueMessageStore#AbstractKeyValueMessageStore(String)
+	 */
+	public RedisMessageStore(RedisConnectionFactory connectionFactory, String prefix) {
+		super(prefix);
 		this.redisTemplate = new RedisTemplate<Object, Object>();
 		this.redisTemplate.setConnectionFactory(connectionFactory);
 		this.redisTemplate.setKeySerializer(new StringRedisSerializer());
@@ -93,13 +114,6 @@ public class RedisMessageStore extends AbstractKeyValueMessageStore {
 		}
 	}
 
-	private void rethrowAsIllegalArgumentException(SerializationException e) {
-		throw new IllegalArgumentException("If relying on the default RedisSerializer " +
-				"(JdkSerializationRedisSerializer) the Object must be Serializable. " +
-				"Either make it Serializable or provide your own implementation of " +
-				"RedisSerializer via 'setValueSerializer(..)'", e);
-	}
-
 	@Override
 	protected Object doRemove(Object id) {
 		Assert.notNull(id, "'id' must not be null");
@@ -110,10 +124,17 @@ public class RedisMessageStore extends AbstractKeyValueMessageStore {
 		return removedObject;
 	}
 
-
 	@Override
 	protected Collection<?> doListKeys(String keyPattern) {
 		Assert.hasText(keyPattern, "'keyPattern' must not be empty");
 		return this.redisTemplate.keys(keyPattern);
 	}
+
+	private void rethrowAsIllegalArgumentException(SerializationException e) {
+		throw new IllegalArgumentException("If relying on the default RedisSerializer " +
+				"(JdkSerializationRedisSerializer) the Object must be Serializable. " +
+				"Either make it Serializable or provide your own implementation of " +
+				"RedisSerializer via 'setValueSerializer(..)'", e);
+	}
+
 }

spring-integration-redis/src/test/java/org/springframework/integration/redis/store/RedisMessageStoreTests.java

@@ -32,6 +32,7 @@ import org.junit.Before;
 import org.junit.Test;
 
 import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.core.BoundValueOperations;
 import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.integration.channel.DirectChannel;
 import org.springframework.integration.history.MessageHistory;
@@ -53,7 +54,7 @@ public class RedisMessageStoreTests extends RedisAvailableTests {
 	@After
 	public void setUpTearDown() {
 		StringRedisTemplate template = this.createStringRedisTemplate(this.getConnectionFactoryForTest());
-		template.delete(template.keys("MESSAGE_*"));
+		template.delete(template.keys("*MESSAGE_*"));
 	}
 
 	@Test
@@ -122,6 +123,24 @@ public class RedisMessageStoreTests extends RedisAvailableTests {
 		assertEquals("Hello Redis", retrievedMessage.getPayload());
 	}
 
+	@SuppressWarnings("unchecked")
+	@Test
+	@RedisAvailable
+	public void testAddAndGetWithPrefix() {
+		RedisConnectionFactory jcf = this.getConnectionFactoryForTest();
+		RedisMessageStore store = new RedisMessageStore(jcf, "foo");
+		Message<String> stringMessage = new GenericMessage<String>("Hello Redis");
+		store.addMessage(stringMessage);
+		Message<String> retrievedMessage = (Message<String>) store.getMessage(stringMessage.getHeaders().getId());
+		assertNotNull(retrievedMessage);
+		assertEquals("Hello Redis", retrievedMessage.getPayload());
+
+		StringRedisTemplate template = createStringRedisTemplate(getConnectionFactoryForTest());
+		BoundValueOperations<String, String> ops =
+				template.boundValueOps("foo" + "MESSAGE_" + stringMessage.getHeaders().getId());
+		assertNotNull(ops.get());
+	}
+
 	@SuppressWarnings("unchecked")
 	@Test
 	@RedisAvailable