Disable using unsigned_long in scripts (#64552) (#64557)

Backport for #64523
Relates to #64361

docs/reference/mapping/types/unsigned_long.asciidoc

@@ -102,13 +102,18 @@ GET /my_index/_search
 --------------------------------
 //TEST[continued]
 
-Similarly to sort values, script values of an `unsigned_long` field
-return a `Number` representing a `Long` or `BigInteger`.
-The same values: `Long` or `BigInteger` are used for `terms` aggregations.
+
+==== Unsigned long in scripts
+Currently unsigned_long is not supported in scripts.
 
 ==== Stored fields
 A stored field of `unsigned_long` is stored and returned as `String`.
 
+==== Aggregations
+For `terms` aggregations, similarly to sort values, `Long` or
+`BigInteger` values are used. For other aggregations,
+values are converted to the `double` type.
+
 ==== Queries with mixed numeric types
 
 Searches with mixed numeric types one of which is `unsigned_long` are

modules/lang-painless/src/main/java/org/elasticsearch/painless/Def.java

@@ -29,7 +29,6 @@ import java.lang.invoke.CallSite;
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.MethodType;
-import java.math.BigInteger;
 import java.time.ZonedDateTime;
 import java.util.BitSet;
 import java.util.Collections;
@@ -761,8 +760,6 @@ public final class Def {
             return (float)value;
         } else if (value instanceof Double) {
             return (double)value;
-        } else if (value instanceof BigInteger) {
-            return ((BigInteger)value).doubleValue();
         } else {
             throw new ClassCastException("cannot implicitly cast " +
                     "def [" + PainlessLookupUtility.typeToUnboxedType(value.getClass()).getCanonicalName() + "] to " +
@@ -895,8 +892,7 @@ public final class Def {
                 value instanceof Integer ||
                 value instanceof Long    ||
                 value instanceof Float   ||
-                value instanceof Double  ||
-                value instanceof BigInteger
+                value instanceof Double
         ) {
             return ((Number)value).doubleValue();
         } else {
@@ -1035,8 +1031,6 @@ public final class Def {
             return (double)(float)value;
         } else if (value instanceof Double) {
             return (Double) value;
-        } else if (value instanceof BigInteger) {
-            return ((BigInteger)value).doubleValue();
         } else {
             throw new ClassCastException("cannot implicitly cast " +
                     "def [" + PainlessLookupUtility.typeToUnboxedType(value.getClass()).getCanonicalName() + "] to " +
@@ -1183,8 +1177,7 @@ public final class Def {
                 value instanceof Integer ||
                 value instanceof Long    ||
                 value instanceof Float   ||
-                value instanceof Double  ||
-                value instanceof BigInteger
+                value instanceof Double
         ) {
             return ((Number)value).doubleValue();
         } else {

modules/lang-painless/src/test/java/org/elasticsearch/painless/DefCastTests.java

@@ -166,7 +166,6 @@ public class DefCastTests extends ScriptTestCase {
         assertEquals((double)0, exec("def d = Long.valueOf(0); double b = d; b"));
         assertEquals((double)0, exec("def d = Float.valueOf(0); double b = d; b"));
         assertEquals((double)0, exec("def d = Double.valueOf(0); double b = d; b"));
-        assertEquals((double)0, exec("def d = BigInteger.valueOf(0); double b = d; b"));
         expectScriptThrows(ClassCastException.class, () -> exec("def d = new ArrayList(); double b = d;"));
     }
 

x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/DocValuesWhitelistExtension.java

@@ -8,44 +8,17 @@ package org.elasticsearch.xpack.unsignedlong;
 
 import org.elasticsearch.painless.spi.PainlessExtension;
 import org.elasticsearch.painless.spi.Whitelist;
-import org.elasticsearch.painless.spi.WhitelistLoader;
-import org.elasticsearch.script.AggregationScript;
-import org.elasticsearch.script.BucketAggregationSelectorScript;
-import org.elasticsearch.script.FieldScript;
-import org.elasticsearch.script.FilterScript;
-import org.elasticsearch.script.NumberSortScript;
-import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.ScriptContext;
-import org.elasticsearch.script.StringSortScript;
 
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import static java.util.Collections.singletonList;
-
 public class DocValuesWhitelistExtension implements PainlessExtension {
 
-    private static final Whitelist WHITELIST = WhitelistLoader.loadFromResourceFiles(DocValuesWhitelistExtension.class, "whitelist.txt");
-
     @Override
     public Map<ScriptContext<?>, List<Whitelist>> getContextWhitelists() {
-        List<Whitelist> whitelist = singletonList(WHITELIST);
-        Map<ScriptContext<?>, List<Whitelist>> contexts = org.elasticsearch.common.collect.Map.of(
-            FieldScript.CONTEXT,
-            whitelist,
-            ScoreScript.CONTEXT,
-            whitelist,
-            FilterScript.CONTEXT,
-            whitelist,
-            AggregationScript.CONTEXT,
-            whitelist,
-            NumberSortScript.CONTEXT,
-            whitelist,
-            StringSortScript.CONTEXT,
-            whitelist,
-            BucketAggregationSelectorScript.CONTEXT,
-            whitelist
-        );
-        return contexts;
+        // TODO: support unsigned_long in scripts
+        return Collections.emptyMap();
     }
 }

x-pack/plugin/mapper-unsigned-long/src/main/java/org/elasticsearch/xpack/unsignedlong/UnsignedLongLeafFieldData.java

@@ -73,7 +73,8 @@ public class UnsignedLongLeafFieldData implements LeafNumericFieldData {
 
     @Override
     public ScriptDocValues<?> getScriptValues() {
-        return new UnsignedLongScriptDocValues(getLongValues());
+        // TODO: add support for scripts
+        throw new UnsupportedOperationException("Using unsigned_long in scripts is currently not supported!");
     }
 
     @Override

x-pack/plugin/src/test/resources/rest-api-spec/test/unsigned_long/50_script_values.yml

@@ -1,8 +1,8 @@
 setup:
 
   - skip:
-      version: " - 7.9.99"
-      reason: "unsigned_long was added in 7.10"
+      version: "all"
+      reason: "AwaitsFix https://github.com/elastic/elasticsearch/issues/64361"
 
   - do:
       indices.create: