Revert "Merge pull request #22428 from vespa-engine/revert-22426-bratseth/schema-info-5"

This reverts commit d6cb1273bcebdea6b8404b242cecb81802d0fb60, reversing
changes made to de8e6f7128dc6489800eae8ce8cdcc6e3414475e.

5 files changed, 218 insertions, 19 deletions

diff --git a/container-search/src/main/java/com/yahoo/search/schema/DocumentSummary.java b/container-search/src/main/java/com/yahoo/search/schema/DocumentSummary.java
new file mode 100644
index 00000000000..12037ee6633
--- /dev/null
+++ b/container-search/src/main/java/com/yahoo/search/schema/DocumentSummary.java
@@ -0,0 +1,160 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.schema;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * A document summary definition: Defines the schema on which a document hit may be
+ * represented in a Result.
+ *
+ * @author bratseth
+ */
+public class DocumentSummary {
+
+    private final String name;
+    private final List<Field> fields;
+    private final boolean dynamic;
+
+    private DocumentSummary(Builder builder) {
+        this.name = builder.name;
+        this.fields = List.copyOf(builder.fields);
+        this.dynamic = builder.dynamic;
+    }
+
+    public String name() { return name; }
+    public List<Field> fields() { return fields; }
+
+    /** Returns whether this contains fields which are generated dynamically from the query and field data. */
+    public boolean isDynamic() { return dynamic; }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == this) return true;
+        if ( ! (o instanceof DocumentSummary)) return false;
+        var other = (DocumentSummary)o;
+        if ( ! other.name.equals(this.name)) return false;
+        if ( other.dynamic != this.dynamic) return false;
+        if ( ! other.fields.equals(this.fields)) return false;
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, dynamic, fields);
+    }
+
+    @Override
+    public String toString() {
+        return "document summary '" + name + "'";
+    }
+
+    public static class Builder {
+
+        private final String name;
+        private final List<Field> fields = new ArrayList<>();
+        private boolean dynamic;
+
+        public Builder(String name) {
+            this.name = name;
+        }
+
+        public Builder add(Field field) {
+            fields.add(field);
+            return this;
+        }
+
+        public Builder setDynamic(boolean dynamic) {
+            this.dynamic = dynamic;
+            return this;
+        }
+
+        public DocumentSummary build() { return new DocumentSummary(this); }
+
+    }
+
+    public static class Field {
+
+        public enum Type {
+            bool,
+            byteType("byte"),
+            shortType("short"),
+            integer,
+            int64,
+            float16,
+            floatType("float"),
+            doubleType("double"),
+            string,
+            data,
+            raw,
+            longstring,
+            longdata,
+            jsonstring,
+            featuredata,
+            xmlstring,
+            tensor;
+
+            private final String name;
+
+            Type() {
+                this(null);
+            }
+
+            Type(String name) {
+                this.name = name;
+            }
+
+            /** Use this, not name() to retrieve the string value of this. */
+            public String asString() {
+                return name != null ? name : name();
+            }
+
+            @Override
+            public String toString() { return asString(); }
+
+            public static Type fromString(String name) {
+                return Arrays.stream(Type.values()).filter(t -> name.equals(t.asString())).findAny().orElseThrow();
+            }
+
+        }
+
+        private final String name;
+        private final Type type;
+
+        public Field(String name, String type) {
+            this(name, Type.fromString(type));
+        }
+
+        public Field(String name, Type type) {
+            this.name = name;
+            this.type = type;
+        }
+
+        public String name() { return name; }
+        public Type type() { return type; }
+
+        @Override
+        public boolean equals(Object o) {
+            if (o == this) return true;
+            if ( ! (o instanceof Field)) return false;
+            var other = (Field)o;
+            if ( ! other.name.equals(this.name)) return false;
+            if ( other.type != this.type) return false;
+            return true;
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(name, type);
+        }
+
+        @Override
+        public String toString() {
+            return "summary field '" + name + "' " + type;
+        }
+
+    }
+
+}
diff --git a/container-search/src/main/java/com/yahoo/search/schema/RankProfile.java b/container-search/src/main/java/com/yahoo/search/schema/RankProfile.java
index 8267e5c937b..39d4a389e6f 100644
--- a/container-search/src/main/java/com/yahoo/search/schema/RankProfile.java
+++ b/container-search/src/main/java/com/yahoo/search/schema/RankProfile.java
@@ -3,7 +3,9 @@ package com.yahoo.search.schema;
 
 import com.yahoo.tensor.TensorType;
 
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Objects;
 
@@ -23,7 +25,7 @@ public class RankProfile {
         this.name = builder.name;
         this.hasSummaryFeatures = builder.hasSummaryFeatures;
         this.hasRankFeatures = builder.hasRankFeatures;
-        this.inputs = Map.copyOf(builder.inputs);
+        this.inputs = Collections.unmodifiableMap(builder.inputs);
     }
 
     public String name() { return name; }
@@ -64,7 +66,7 @@ public class RankProfile {
         private final String name;
         private boolean hasSummaryFeatures = true;
         private boolean hasRankFeatures = true;
-        private final Map<String, TensorType> inputs = new HashMap<>();
+        private final Map<String, TensorType> inputs = new LinkedHashMap<>();
 
         public Builder(String name) {
             this.name = Objects.requireNonNull(name);
diff --git a/container-search/src/main/java/com/yahoo/search/schema/Schema.java b/container-search/src/main/java/com/yahoo/search/schema/Schema.java
index b66e6ce957a..2ab5a30fbd7 100644
--- a/container-search/src/main/java/com/yahoo/search/schema/Schema.java
+++ b/container-search/src/main/java/com/yahoo/search/schema/Schema.java
@@ -3,7 +3,9 @@ package com.yahoo.search.schema;
 
 import com.yahoo.api.annotations.Beta;
 
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Objects;
 
@@ -19,14 +21,17 @@ public class Schema {
 
     private final String name;
     private final Map<String, RankProfile> rankProfiles;
+    private final Map<String, DocumentSummary> documentSummaries;
 
     private Schema(Builder builder) {
         this.name = builder.name;
-        this.rankProfiles = Map.copyOf(builder.rankProfiles);
+        this.rankProfiles = Collections.unmodifiableMap(builder.rankProfiles);
+        this.documentSummaries = Collections.unmodifiableMap(builder.documentSummaries);
     }
 
     public String name() { return name; }
     public Map<String, RankProfile> rankProfiles() { return rankProfiles; }
+    public Map<String, DocumentSummary> documentSummaries() { return documentSummaries; }
 
     @Override
     public boolean equals(Object o) {
@@ -35,12 +40,13 @@ public class Schema {
         Schema other = (Schema)o;
         if ( ! other.name.equals(this.name)) return false;
         if ( ! other.rankProfiles.equals(this.rankProfiles)) return false;
+        if ( ! other.documentSummaries.equals(this.documentSummaries)) return false;
         return true;
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(name, rankProfiles);
+        return Objects.hash(name, rankProfiles, documentSummaries);
     }
 
     @Override
@@ -51,14 +57,20 @@ public class Schema {
     public static class Builder {
 
         private final String name;
-        private final Map<String, RankProfile> rankProfiles = new HashMap<>();
+        private final Map<String, RankProfile> rankProfiles = new LinkedHashMap<>();
+        private final Map<String, DocumentSummary> documentSummaries = new LinkedHashMap<>();
 
         public Builder(String name) {
             this.name = Objects.requireNonNull(name);
         }
 
         public Builder add(RankProfile profile) {
-            rankProfiles.put(profile.name(), Objects.requireNonNull(profile));
+            rankProfiles.put(profile.name(), profile);
+            return this;
+        }
+
+        public Builder add(DocumentSummary documentSummary) {
+            documentSummaries.put(documentSummary.name(), documentSummary);
             return this;
         }
 
diff --git a/container-search/src/main/java/com/yahoo/search/schema/SchemaInfo.java b/container-search/src/main/java/com/yahoo/search/schema/SchemaInfo.java
index 4daf110fc54..7bd66445512 100644
--- a/container-search/src/main/java/com/yahoo/search/schema/SchemaInfo.java
+++ b/container-search/src/main/java/com/yahoo/search/schema/SchemaInfo.java
@@ -2,13 +2,17 @@
 package com.yahoo.search.schema;
 
 import com.yahoo.api.annotations.Beta;
+import com.yahoo.component.annotation.Inject;
 import com.yahoo.container.QrSearchersConfig;
 import com.yahoo.search.Query;
 import com.yahoo.search.config.IndexInfoConfig;
 import com.yahoo.search.config.SchemaInfoConfig;
 import com.yahoo.tensor.TensorType;
 
+import java.util.Collection;
+import java.util.Collections;
 import java.util.HashSet;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -39,11 +43,12 @@ public class SchemaInfo {
 
     private static final SchemaInfo empty = new SchemaInfo(List.of(), Map.of());
 
-    private final List<Schema> schemas;
+    private final Map<String, Schema> schemas;
 
     /** The schemas contained in each content cluster indexed by cluster name */
     private final Map<String, List<String>> clusters;
 
+    @Inject
     public SchemaInfo(IndexInfoConfig indexInfo, // will be used in the future
                       SchemaInfoConfig schemaInfoConfig,
                       QrSearchersConfig qrSearchersConfig) {
@@ -51,12 +56,14 @@ public class SchemaInfo {
     }
 
     public SchemaInfo(List<Schema> schemas, Map<String, List<String>> clusters) {
-        this.schemas = List.copyOf(schemas);
-        this.clusters = Map.copyOf(clusters);
+        Map<String, Schema> schemaMap = new LinkedHashMap<>();
+        schemas.forEach(schema -> schemaMap.put(schema.name(), schema));
+        this.schemas = Collections.unmodifiableMap(schemaMap);
+        this.clusters = Collections.unmodifiableMap(clusters);
     }
 
-    /** Returns all schemas configured in this application. */
-    public List<Schema> schemas() { return schemas; }
+    /** Returns all schemas configured in this application, indexed by schema name. */
+    public Map<String, Schema> schemas() { return schemas; }
 
     public Session newSession(Query query) {
         return new Session(query.getModel().getSources(), query.getModel().getRestrict(), clusters, schemas);
@@ -80,13 +87,13 @@ public class SchemaInfo {
     /** The schema information resolved to be relevant to this session. */
     public static class Session {
 
-        private final List<Schema> schemas;
+        private final Collection<Schema> schemas;
 
         private Session(Set<String> sources,
                         Set<String> restrict,
                         Map<String, List<String>> clusters,
-                        List<Schema> candidates) {
-            this.schemas = resolveSchemas(sources, restrict, clusters, candidates);
+                        Map<String, Schema> candidates) {
+            this.schemas = resolveSchemas(sources, restrict, clusters, candidates.values());
         }
 
         /**
@@ -96,10 +103,10 @@ public class SchemaInfo {
          *
          * @return the possibly empty list of schemas matching the arguments
          */
-        private static List<Schema> resolveSchemas(Set<String> sources,
-                                                   Set<String> restrict,
-                                                   Map<String, List<String>> clusters,
-                                                   List<Schema> candidates) {
+        private static Collection<Schema> resolveSchemas(Set<String> sources,
+                                                         Set<String> restrict,
+                                                         Map<String, List<String>> clusters,
+                                                         Collection<Schema> candidates) {
             if (sources.isEmpty())
                 return restrict.isEmpty() ? candidates : keep(restrict, candidates);
 
@@ -114,7 +121,7 @@ public class SchemaInfo {
             return restrict.isEmpty() ? candidates : keep(restrict, candidates);
         }
 
-        private static List<Schema> keep(Set<String> names, List<Schema> schemas) {
+        private static List<Schema> keep(Set<String> names, Collection<Schema> schemas) {
             return schemas.stream().filter(schema -> names.contains(schema.name())).collect(Collectors.toList());
         }
 
diff --git a/container-search/src/main/java/com/yahoo/search/schema/SchemaInfoConfigurer.java b/container-search/src/main/java/com/yahoo/search/schema/SchemaInfoConfigurer.java
index 84ed9ae8e3d..c5a74ece866 100644
--- a/container-search/src/main/java/com/yahoo/search/schema/SchemaInfoConfigurer.java
+++ b/container-search/src/main/java/com/yahoo/search/schema/SchemaInfoConfigurer.java
@@ -1,11 +1,17 @@
 // Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
 package com.yahoo.search.schema;
 
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import com.yahoo.container.QrSearchersConfig;
+import com.yahoo.prelude.fastsearch.DocsumDefinition;
+import com.yahoo.prelude.fastsearch.DocsumField;
+import com.yahoo.prelude.fastsearch.DocumentdbInfoConfig;
 import com.yahoo.search.config.SchemaInfoConfig;
 import com.yahoo.tensor.TensorType;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -24,6 +30,7 @@ class SchemaInfoConfigurer {
 
     static Schema toSchema(SchemaInfoConfig.Schema schemaInfoConfig) {
         Schema.Builder builder = new Schema.Builder(schemaInfoConfig.name());
+
         for (var profileConfig : schemaInfoConfig.rankprofile()) {
             RankProfile.Builder profileBuilder = new RankProfile.Builder(profileConfig.name());
             profileBuilder.setHasSummaryFeatures(profileConfig.hasSummaryFeatures());
@@ -32,6 +39,17 @@ class SchemaInfoConfigurer {
                 profileBuilder.addInput(inputConfig.name(), TensorType.fromSpec(inputConfig.type()));
             builder.add(profileBuilder.build());
         }
+
+        for (var summaryConfig : schemaInfoConfig.summaryclass()) {
+            DocumentSummary.Builder summaryBuilder = new DocumentSummary.Builder(summaryConfig.name());
+            for (var field : summaryConfig.fields()) {
+                if (field.dynamic())
+                    summaryBuilder.setDynamic(true);
+                summaryBuilder.add(new DocumentSummary.Field(field.name(), field.type()));
+            }
+            builder.add(summaryBuilder.build());
+        }
+
         return builder.build();
     }