Convert fields and test traversal first

1 files changed, 13 insertions, 0 deletions

diff --git a/container-search/src/main/java/com/yahoo/prelude/fastsearch/DocsumDefinition.java b/container-search/src/main/java/com/yahoo/prelude/fastsearch/DocsumDefinition.java
index e20340a03c0..675c1af6545 100644
--- a/container-search/src/main/java/com/yahoo/prelude/fastsearch/DocsumDefinition.java
+++ b/container-search/src/main/java/com/yahoo/prelude/fastsearch/DocsumDefinition.java
@@ -3,6 +3,7 @@ package com.yahoo.prelude.fastsearch;
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import com.yahoo.data.access.Inspector;
 import com.yahoo.vespa.config.search.SummaryConfig;
 import com.yahoo.container.search.LegacyEmulationConfig;
 
@@ -74,6 +75,18 @@ public class DocsumDefinition {
         return getField(index);
     }
 
+    /**
+     * Returns the given slime value as the type specified in this, or null if the type is not known.
+     * Even in a correctly configured system we may encounter field names for which we do not know the type,
+     * in the time period when a configuration is changing and one node has received the new configuration and
+     * another has not.
+     */
+    public Object convert(String fieldName, Inspector value) {
+        DocsumField fieldType = getField(fieldName);
+        if (fieldType == null) return null;
+        return fieldType.convert(value);
+    }
+
     public Set<String> fieldNames() {
         return fieldNameToIndex.keySet();
     }