Adding support for generic field types

Author: Samiul-TheSoccerFan

server/src/main/java/org/elasticsearch/index/mapper/MappedFieldType.java

@@ -68,7 +68,7 @@ public abstract class MappedFieldType {
     private final boolean isStored;
     private final TextSearchInfo textSearchInfo;
     private final Map<String, String> meta;
-    private boolean excludeFromFieldCaps;
+    private final boolean excludeFromFieldCaps;
 
     public MappedFieldType(
         String name,
@@ -77,6 +77,18 @@ public MappedFieldType(
         boolean hasDocValues,
         TextSearchInfo textSearchInfo,
         Map<String, String> meta
+    ) {
+        this(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, false);
+    }
+
+    public MappedFieldType(
+        String name,
+        boolean isIndexed,
+        boolean isStored,
+        boolean hasDocValues,
+        TextSearchInfo textSearchInfo,
+        Map<String, String> meta,
+        boolean excludeFromFieldCaps
     ) {
         this.name = Mapper.internFieldName(name);
         this.isIndexed = isIndexed;
@@ -86,6 +98,7 @@ public MappedFieldType(
         // meta should be sorted but for the one item or empty case we can fall back to immutable maps to save some memory since order is
         // irrelevant
         this.meta = meta.size() <= 1 ? Map.copyOf(meta) : meta;
+        this.excludeFromFieldCaps = excludeFromFieldCaps;
     }
 
     /**
@@ -123,11 +136,7 @@ public IndexFieldData.Builder fielddataBuilder(FieldDataContext fieldDataContext
 
     /** Returns the field family type, as used in field capabilities */
     public String familyTypeName() {
-        return excludeFromFieldCaps ? null : typeName();
-    }
-
-    public void setExcludeFromFieldCaps(boolean exclude) {
-        this.excludeFromFieldCaps = exclude;
+        return typeName();
     }
 
     public String name() {
@@ -175,6 +184,13 @@ public final boolean isStored() {
         return isStored;
     }
 
+    /**
+     * @return true if fieldType is subfields of semantic_text type
+     */
+    public boolean excludeFromFieldCaps() {
+        return excludeFromFieldCaps;
+    }
+
     /**
      * If the field supports using the indexed data to speed up operations related to ordering of data, such as sorting or aggs, return
      * a function for doing that.  If it is unsupported for this field type, there is no need to override this method.

server/src/main/java/org/elasticsearch/index/mapper/SimpleMappedFieldType.java

@@ -30,7 +30,19 @@ protected SimpleMappedFieldType(
         TextSearchInfo textSearchInfo,
         Map<String, String> meta
     ) {
-        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta);
+        this(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, false);
+    }
+
+    protected SimpleMappedFieldType(
+        String name,
+        boolean isIndexed,
+        boolean isStored,
+        boolean hasDocValues,
+        TextSearchInfo textSearchInfo,
+        Map<String, String> meta,
+        boolean excludeFromFieldCaps
+    ) {
+        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, excludeFromFieldCaps);
     }
 
     @Override

server/src/main/java/org/elasticsearch/index/mapper/StringFieldType.java

@@ -51,7 +51,19 @@ public StringFieldType(
         TextSearchInfo textSearchInfo,
         Map<String, String> meta
     ) {
-        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta);
+        this(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, false);
+    }
+
+    public StringFieldType(
+        String name,
+        boolean isIndexed,
+        boolean isStored,
+        boolean hasDocValues,
+        TextSearchInfo textSearchInfo,
+        Map<String, String> meta,
+        boolean excludeFromFieldCaps
+    ) {
+        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, excludeFromFieldCaps);
     }
 
     @Override

server/src/main/java/org/elasticsearch/index/mapper/TermBasedFieldType.java

@@ -34,7 +34,19 @@ public TermBasedFieldType(
         TextSearchInfo textSearchInfo,
         Map<String, String> meta
     ) {
-        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta);
+        this(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, false);
+    }
+
+    public TermBasedFieldType(
+        String name,
+        boolean isIndexed,
+        boolean isStored,
+        boolean hasDocValues,
+        TextSearchInfo textSearchInfo,
+        Map<String, String> meta,
+        boolean excludeFromFieldCaps
+    ) {
+        super(name, isIndexed, isStored, hasDocValues, textSearchInfo, meta, excludeFromFieldCaps);
     }
 
     /** Returns the indexed value used to construct search "values".