Separate out ranking constants

1 files changed, 36 insertions, 0 deletions

diff --git a/config-model/src/main/java/com/yahoo/searchdefinition/RankingConstants.java b/config-model/src/main/java/com/yahoo/searchdefinition/RankingConstants.java
new file mode 100644
index 00000000000..164cb7f808e
--- /dev/null
+++ b/config-model/src/main/java/com/yahoo/searchdefinition/RankingConstants.java
@@ -0,0 +1,36 @@
+// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.searchdefinition;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Constant values for ranking/model execution tied to a search definition, or globally to an application
+ * package
+ *
+ * @author bratseth
+ */
+public class RankingConstants {
+
+    private final Map<String, RankingConstant> constants = new HashMap<>();
+
+    public void add(RankingConstant constant) {
+        constant.validate();
+        String name = constant.getName();
+        if (constants.containsKey(name))
+            throw new IllegalArgumentException("Ranking constant '" + name + "' defined twice");
+        constants.put(name, constant);
+    }
+
+    /** Returns the ranking constant with the given name, or null if not present */
+    public RankingConstant get(String name) {
+        return constants.get(name);
+    }
+
+    /** Returns a read-only map of the ranking constants in this indexed by name */
+    public Map<String, RankingConstant> asMap() {
+        return Collections.unmodifiableMap(constants);
+    }
+
+}