polish REDIS-102

src/main/java/org/springframework/data/redis/cache/RedisCache.java

@@ -43,7 +43,7 @@ class RedisCache implements Cache {
 	private final byte[] setName;
 	private final byte[] cacheLockName;
 	private long WAIT_FOR_LOCK = 300;
-    private final long expire;
+	private final long expiration;
 
 	/**
 	 * 
@@ -52,22 +52,22 @@ class RedisCache implements Cache {
 	 * @param name cache name
 	 * @param prefix
 	 * @param template
-     * @param expire
+	 * @param expiration
-     */
+	 */
-	RedisCache(String name, byte[] prefix, RedisTemplate<? extends Object, ? extends Object> template, long expire) {
+	RedisCache(String name, byte[] prefix, RedisTemplate<? extends Object, ? extends Object> template, long expiration) {
 
 		Assert.hasText(name, "non-empty cache name is required");
 		this.name = name;
 		this.template = template;
 		this.prefix = prefix;
-        this.expire = expire;
+		this.expiration = expiration;
 
 		StringRedisSerializer stringSerializer = new StringRedisSerializer();
 
 		// name of the set holding the keys
 		this.setName = stringSerializer.serialize(name + "~keys");
-        this.cacheLockName = stringSerializer.serialize(name + "~lock");
+		this.cacheLockName = stringSerializer.serialize(name + "~lock");
-    }
+	}
 
 	public String getName() {
 		return name;
@@ -104,10 +104,13 @@ class RedisCache implements Cache {
 				waitForLock(connection);
 				connection.multi();
 				connection.set(k, template.getValueSerializer().serialize(value));
-                if (expire > 0) {
-                    connection.expire(k, expire);
-                }
 				connection.zAdd(setName, 0, k);
+
+				if (expiration > 0) {
+					connection.expire(k, expiration);
+					// update the expiration of the set of keys as well
+					connection.expire(setName, expiration);
+				}
 				connection.exec();
 
 				return null;

src/main/java/org/springframework/data/redis/cache/RedisCacheManager.java

@@ -18,7 +18,6 @@ package org.springframework.data.redis.cache;
 
 import java.util.Collection;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
@@ -44,9 +43,9 @@ public class RedisCacheManager implements CacheManager {
 	private boolean usePrefix;
 	private RedisCachePrefix cachePrefix = new DefaultRedisCachePrefix();
 
-    // 0 - never expire
+	// 0 - never expire
-    private long defaultExpireTime = 0;
+	private long defaultExpiration = 0;
-    private Map<String, Long>expires = new HashMap<String, Long>();
+	private Map<String, Long> expires = null;
 
 	public RedisCacheManager(RedisTemplate template) {
 		this.template = template;
@@ -55,23 +54,31 @@ public class RedisCacheManager implements CacheManager {
 	public Cache getCache(String name) {
 		Cache c = caches.get(name);
 		if (c == null) {
-            long expire = (expires.containsKey(name)) ? expires.get(name) : defaultExpireTime;
+			long expiration = computeExpiration(name);
-			c = new RedisCache(name, (usePrefix ? cachePrefix.prefix(name) : null), template, expire);
+			c = new RedisCache(name, (usePrefix ? cachePrefix.prefix(name) : null), template, expiration);
 			caches.put(name, c);
 		}
 
 		return c;
 	}
 
+	private long computeExpiration(String name) {
+		Long expiration = null;
+		if (expires != null) {
+			expiration = expires.get(name);
+		}
+		return (expiration != null ? expiration.longValue() : defaultExpiration);
+	}
+
 	public Collection<String> getCacheNames() {
 		return names;
 	}
 
-    public void setUsePrefix(boolean usePrefix) {
+	public void setUsePrefix(boolean usePrefix) {
-        this.usePrefix = usePrefix;
+		this.usePrefix = usePrefix;
-    }
+	}
 
-    /**
+	/**
 	 * Sets the cachePrefix.
 	 *
 	 * @param cachePrefix the cachePrefix to set
@@ -80,21 +87,21 @@ public class RedisCacheManager implements CacheManager {
 		this.cachePrefix = cachePrefix;
 	}
 
-    /**
+	/**
-     * Set default expire time.
+	 * Sets the default expire time (in seconds).
-     *
+	 *
-     * @param defaultExpireTime time in ms
+	 * @param defaultExpireTime time in seconds.
-     */
+	 */
-    public void setDefaultExpireTime(long defaultExpireTime) {
+	public void setDefaultExpiration(long defaultExpireTime) {
-        this.defaultExpireTime = defaultExpireTime;
+		this.defaultExpiration = defaultExpireTime;
-    }
+	}
 
-    /**
+	/**
-     * Set expire time for caches
+	 * Sets the expire time (in seconds) for cache regions (by key).
-     *
+	 *
-     * @param expires time in ms
+	 * @param expires time in seconds
-     */
+	 */
-    public void setExpires(Map<String, Long> expires) {
+	public void setExpires(Map<String, Long> expires) {
-        this.expires = expires;
+		this.expires = (expires != null ? new ConcurrentHashMap<String, Long>(expires) : null);
-    }
+	}
 }

src/test/java/org/springframework/data/redis/cache/RedisCacheTest.java

@@ -60,7 +60,7 @@ public class RedisCacheTest extends AbstractNativeCacheTest<RedisTemplate> {
 
 	
 	protected Cache createCache(RedisTemplate nativeCache) {
-		return new RedisCache(CACHE_NAME, CACHE_NAME.concat(":").getBytes(), nativeCache);
+		return new RedisCache(CACHE_NAME, CACHE_NAME.concat(":").getBytes(), nativeCache, TimeUnit.MINUTES.toSeconds(5));
 	}