From 62153b6e19e30cf3d7b6c48a8ffd4dc63b8d45aa Mon Sep 17 00:00:00 2001
From: Henning Baldersheim <balder@yahoo-inc.com>
Date: Mon, 28 Aug 2017 12:01:49 +0200
Subject: Add info about enabled caches and their keys.

---
 .../prelude/fastsearch/VespaBackEndSearcher.java   | 10 +++++++
 .../java/com/yahoo/search/query/SessionId.java     | 15 ++++++++++
 .../java/com/yahoo/search/test/QueryTestCase.java  | 33 ++++++++++++++++++++++
 3 files changed, 58 insertions(+)

(limited to 'container-search')

diff --git a/container-search/src/main/java/com/yahoo/prelude/fastsearch/VespaBackEndSearcher.java b/container-search/src/main/java/com/yahoo/prelude/fastsearch/VespaBackEndSearcher.java
index 3369eb64094..1a7e693caa7 100644
--- a/container-search/src/main/java/com/yahoo/prelude/fastsearch/VespaBackEndSearcher.java
+++ b/container-search/src/main/java/com/yahoo/prelude/fastsearch/VespaBackEndSearcher.java
@@ -396,6 +396,16 @@ public abstract class VespaBackEndSearcher extends PingableSearcher {
             s.append(" location=")
                     .append(query.getRanking().getLocation().toString());
         }
+        
+        if (query.getGroupingSessionCache()) {
+            s.append(" groupingSessionCache=true");
+        }
+        if (query.getRanking().getQueryCache()) {
+            s.append(" ranking.queryCache=true");
+        }
+        if (query.getGroupingSessionCache() || query.getRanking().getQueryCache()) {
+            s.append(" sessionId=" + query.getSessionId(true));
+        }
 
         List<Grouping> grouping = GroupingExecutor.getGroupingList(query);
         s.append(" grouping=").append(grouping.size()).append(" : ");
diff --git a/container-search/src/main/java/com/yahoo/search/query/SessionId.java b/container-search/src/main/java/com/yahoo/search/query/SessionId.java
index c6e34e7e430..b065bd9a0a9 100644
--- a/container-search/src/main/java/com/yahoo/search/query/SessionId.java
+++ b/container-search/src/main/java/com/yahoo/search/query/SessionId.java
@@ -22,4 +22,19 @@ public class SessionId {
     }
 
     public Utf8String asUtf8String() { return id; }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        SessionId sessionId = (SessionId) o;
+
+        return id.equals(sessionId.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id.hashCode();
+    }
 }
diff --git a/container-search/src/test/java/com/yahoo/search/test/QueryTestCase.java b/container-search/src/test/java/com/yahoo/search/test/QueryTestCase.java
index ce9e3357c77..3ffc5dbcf78 100644
--- a/container-search/src/test/java/com/yahoo/search/test/QueryTestCase.java
+++ b/container-search/src/test/java/com/yahoo/search/test/QueryTestCase.java
@@ -23,6 +23,7 @@ import com.yahoo.search.Query;
 import com.yahoo.search.Result;
 import com.yahoo.search.Searcher;
 import com.yahoo.search.query.QueryTree;
+import com.yahoo.search.query.SessionId;
 import com.yahoo.search.query.profile.QueryProfile;
 import com.yahoo.search.query.profile.QueryProfileRegistry;
 import com.yahoo.search.result.Hit;
@@ -44,6 +45,7 @@ import java.util.stream.Collectors;
 
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
@@ -636,6 +638,37 @@ public class QueryTestCase {
         }
     }
 
+    @Test
+    public void testThatSessionIdIsUniquePerQuery() {
+        Query q = new Query();
+        assertNull(q.getSessionId(false));
+        assertNull(q.getSessionId(false));
+        SessionId s1 = q.getSessionId(true);
+        assertNotNull(s1);
+        SessionId s2 = q.getSessionId(true);
+        assertNotSame(s1, s2);
+        assertEquals(s1, s2);
+        assertEquals(s1.toString(), s2.toString());
+
+        Query q2 = new Query();
+        assertNotEquals(q.getSessionId(false), q2.getSessionId(true));
+        assertNotEquals(q.getSessionId(false).toString(), q2.getSessionId(true).toString());
+
+        // This is not required, but just to document current implementation.
+        Query clonedQ = q.clone();
+        assertNotNull(clonedQ.getSessionId(false));
+        assertEquals(q.getSessionId(false), q.getSessionId(false));
+    }
+
+    @Test
+    public void testThatSessionIdIsUniquePerRankProfilePerQuery() {
+        Query q = new Query();
+        SessionId s1 = q.getSessionId(true);
+        q.getRanking().setProfile("my-profile");
+        SessionId s2 = q.getSessionId(false);
+        assertNotEquals(s1, s2);
+    }
+
     @Test
     public void testPositiveTerms() {
         Query q = new Query(httpEncode("/?query=-a \"b c\" d e"));
-- 
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