Add TTL to created keys

src/main/java/in/nosd/redis/dataadapters/RedisLookupDataAdapter.java

@@ -158,7 +158,7 @@ public class RedisLookupDataAdapter extends LookupDataAdapter {
     public LookupResult setValue(Object key, Object value) {
         final Timer.Context time = redisSetRequestTimer.time();
         try {
-            final String result = this.commands.set(key.toString(), value.toString());
+            final String result = this.commands.setex(key.toString(), this.config.redisKeyTTL(), value.toString());
             if (!result.equals("OK")) {
                 LOG.warn("Redis SET key <{}> to value <{}> returned {}", key, value, result);
                 redisSetRequestErrors.mark();
@@ -194,6 +194,7 @@ public class RedisLookupDataAdapter extends LookupDataAdapter {
                     .redisHost("127.0.0.1")
                     .redisPort(6379)
                     .redisDB(0)
+                    .redisKeyTTL(86400)
                     .redisUsername("")
                     .redisPassword("")
                     .build();
@@ -225,6 +226,10 @@ public class RedisLookupDataAdapter extends LookupDataAdapter {
         @Min(0)
         public abstract int redisDB();
 
+        @JsonProperty("redis_ttl")
+        @Min(0)
+        public abstract long redisKeyTTL();
+
         @JsonProperty("redis_username")
         @Nullable
         public abstract String redisUsername();
@@ -268,6 +273,9 @@ public class RedisLookupDataAdapter extends LookupDataAdapter {
             @JsonProperty("redis_database")
             public abstract Builder redisDB(int redisDB);
 
+            @JsonProperty("redis_ttl")
+            public abstract Builder redisKeyTTL(long redisKeyTTL);
+
             @JsonProperty("redis_username")
             public abstract Builder redisUsername(String redisUsername);
 

src/web/dataadapters/RedisLookupAdapterDocumentation.jsx

@@ -23,7 +23,9 @@ class RedisLookupAdapterDocumentation extends React.Component {
     return (
       <div>
         <p style={style}>
-            The Redis Lookup data adapter lookup redis for the given key and returns the values .
+            The Redis Lookup data adapter lookup redis for the given key and returns the values.<br/>
+            It supports writing key/values to Redis (SET command). <br/>
+            All created keys will have the TTL configured for the data adapter.
         </p>
       </div>
     )

src/web/dataadapters/RedisLookupAdapterFieldSet.jsx

@@ -76,6 +76,17 @@ class RedisLookupAdapterFieldSet extends React.Component {
         value={config.redis_database}
         labelClassName="col-sm-3"
         wrapperClassName="col-sm-9" />
+      <Input type="text"
+        id="redis_ttl"
+        name="redis_ttl"
+        label="Redis key TTL"
+        required
+        onChange={this.props.handleFormEvent}
+        help={this.props.validationMessage('redis_ttl', 'Redis key TTL in seconds')}
+        bsStyle={this.props.validationState('redis_ttl')}
+        value={config.redis_ttl}
+        labelClassName="col-sm-3"
+        wrapperClassName="col-sm-9" />
       <Input type="text"
         id="redis_username"
         name="redis_username"