Rename the 'searchdefinition' package to 'schema'

1 files changed, 79 insertions, 0 deletions

diff --git a/config-model/src/main/java/com/yahoo/schema/processing/LiteralBoost.java b/config-model/src/main/java/com/yahoo/schema/processing/LiteralBoost.java
new file mode 100644
index 00000000000..a84f895100a
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+++ b/config-model/src/main/java/com/yahoo/schema/processing/LiteralBoost.java
@@ -0,0 +1,79 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.schema.processing;
+
+import com.yahoo.config.application.api.DeployLogger;
+import com.yahoo.schema.RankProfileRegistry;
+import com.yahoo.schema.Schema;
+import com.yahoo.schema.document.SDField;
+import com.yahoo.schema.RankProfile;
+import com.yahoo.vespa.model.container.search.QueryProfiles;
+
+import java.util.Iterator;
+
+/**
+ * Expresses literal boosts in terms of extra indices with rank boost.
+ * One extra index named <i>indexname</i>_exact is added for each index having
+ * a fields with literal-boosts of zero or more (zero to support other
+ * rank profiles setting a literal boost). Complete boost values in to fields
+ * are translated to rank boosts to the implementation indices.
+ * These indices has no positional
+ * or phrase support and contains concatenated versions of each field value
+ * of complete-boosted fields indexed to <i>indexname</i>. A search for indexname
+ * will be rewritten to also search <i>indexname</i>_exaxt
+ *
+ * @author  bratseth
+ */
+public class LiteralBoost extends Processor {
+
+    public LiteralBoost(Schema schema, DeployLogger deployLogger, RankProfileRegistry rankProfileRegistry, QueryProfiles queryProfiles) {
+        super(schema, deployLogger, rankProfileRegistry, queryProfiles);
+    }
+
+    /** Adds extra search fields and indices to express literal boosts */
+    @Override
+    public void process(boolean validate, boolean documentsOnly) {
+        checkRankModifierRankType(schema);
+        addLiteralBoostsToFields(schema);
+        reduceFieldLiteralBoosts(schema);
+    }
+
+    /** Checks if literal boost is given using rank: , and set the actual literal boost accordingly. */
+    private void checkRankModifierRankType(Schema schema) {
+        for (SDField field : schema.allConcreteFields()) {
+            if (field.getLiteralBoost() > -1) continue; // Let explicit value take precedence
+            if (field.getRanking().isLiteral())
+                field.setLiteralBoost(100);
+        }
+    }
+
+    /**
+     * Ensures there are field boosts for all literal boosts mentioned in rank profiles.
+     * This is required because boost indices will only be generated by looking
+     * at field boosts
+     */
+    private void addLiteralBoostsToFields(Schema schema) {
+        Iterator i = matchingRankSettingsIterator(schema, RankProfile.RankSetting.Type.LITERALBOOST);
+        while (i.hasNext()) {
+            RankProfile.RankSetting setting = (RankProfile.RankSetting)i.next();
+            SDField field = schema.getConcreteField(setting.getFieldName());
+            if (field == null) continue;
+            if (field.getLiteralBoost() < 0)
+                field.setLiteralBoost(0);
+        }
+    }
+
+    private void reduceFieldLiteralBoosts(Schema schema) {
+        for (SDField field : schema.allConcreteFields()) {
+            if (field.getLiteralBoost() < 0) continue;
+            reduceFieldLiteralBoost(field, schema);
+        }
+    }
+
+    private void reduceFieldLiteralBoost(SDField field, Schema schema) {
+        SDField literalField = addField(schema, field, "literal",
+                                        "{ input " + field.getName() + " | tokenize | index " + field.getName() + "_literal; }",
+                                        "literal-boost");
+        literalField.setWeight(field.getWeight() + field.getLiteralBoost());
+    }
+
+}