Generate part of core namespace (opensearch-project#1377)

* Generate clear_score and ignore paths/operations that have been deprecated since OS 1.0

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate count

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate create_pit

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate delete

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate delete_all_pits & delete_pit

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate delete_by_query, reindex & update_by_query

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate delete_by_query_rethrottle, reindex_rethrottle, update_by_query_rethrottle

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate get_all_pits

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate delete_script, get_script, get_script_context, get_script_languages & put_script

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate exists & exists_source

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate field_caps

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate mtermvectors

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate ping

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate rank_eval

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate render_search_template

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Generate search_shards

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Remove terms_enum

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

* Fix build

Signed-off-by: Thomas Farr <tsfarr@amazon.com>

---------

Signed-off-by: Thomas Farr <tsfarr@amazon.com>
(cherry picked from commit dffa9c9)

Author: Xtansia

java-codegen/opensearch-openapi.yaml

@@ -95,6 +95,9 @@ public Set<String> getAliases() {
         }
 
         public void addAlias(String alias) {
+            if (alias.equals(wireName)) {
+                return;
+            }
             aliases.add(alias);
         }
 

java-codegen/src/main/java/org/opensearch/client/codegen/model/EnumShape.java

@@ -91,6 +91,7 @@ public void visit(@Nonnull OpenApiSpecification spec) {
             .flatMap(Optional::stream)
             .map(Map::values)
             .flatMap(Collection::stream)
+            .filter(o -> o.getDeprecation().map(d -> d.getVersion().isGreaterThan(Versions.V1_0_0)).orElse(true))
             .forEach(operation -> {
                 var group = operation.getOperationGroup();
                 if (!matcher.matches(group)) {
@@ -608,6 +609,9 @@ private void visitInto(OpenApiSchema schema, EnumShape shape) {
         } else if (schema.hasConst()) {
             var value = (String) schema.getConst().orElseThrow();
             shape.addVariant(title.orElse(value), value, schema.getDescription().orElse(null), isDeprecated);
+        } else if (schema.isBoolean()) {
+            shape.addVariant(title.orElse("true"), "true", schema.getDescription().orElse(null), isDeprecated);
+            shape.addVariant(title.orElse("false"), "false", schema.getDescription().orElse(null), isDeprecated);
         }
     }
 
@@ -843,7 +847,18 @@ private static boolean isEnum(OpenApiSchema schema) {
             return schema.hasEnums() || schema.hasConst();
         }
         if (schema.getOneOf().isPresent()) {
-            return schema.getOneOf().get().stream().allMatch(SpecTransformer::isEnum);
+            var enumCount = 0;
+            var booleanCount = 0;
+            var totalCount = 0;
+            for (var s : schema.getOneOf().orElseThrow()) {
+                if (s.isBoolean()) {
+                    booleanCount++;
+                } else if (isEnum(s)) {
+                    enumCount++;
+                }
+                totalCount++;
+            }
+            return enumCount == totalCount || (booleanCount == 1 && enumCount == totalCount - 1);
         }
         return false;
     }

java-codegen/src/main/java/org/opensearch/client/codegen/model/SpecTransformer.java

@@ -104,10 +104,7 @@ public Type getVariantInterfaceType() {
     }
 
     public boolean canStringify() {
-        return !isDiscriminated() && getVariants().stream().allMatch(v -> {
-            var t = v.getType();
-            return t.isPotentiallyBoxedPrimitive() || t.isString() || t.isEnum();
-        });
+        return !isDiscriminated() && getVariants().stream().allMatch(v -> v.getType().canQueryParamify());
     }
 
     public boolean hasAmbiguities() {

java-codegen/src/main/java/org/opensearch/client/codegen/model/TaggedUnionShape.java

@@ -247,6 +247,16 @@ public Type withTypeParameters(Type... typeParams) {
         return toBuilder().withTypeParameters(typeParams).build();
     }
 
+    public boolean canQueryParamify() {
+        if (isString() || isEnum() || isPotentiallyBoxedPrimitive() || isNumber()) {
+            return true;
+        }
+        if (isList()) {
+            return getListValueType().canQueryParamify();
+        }
+        return false;
+    }
+
     public Mustache.Lambda queryParamify() {
         return new TypeQueryParamifyLambda(this);
     }

java-codegen/src/main/java/org/opensearch/client/codegen/model/Type.java

@@ -113,6 +113,11 @@ private static JsonPointer schema(String namespace, String name) {
 
                 .with(schema("_common.query_dsl", "QueryContainer"), so -> so.withClassName("Query"))
 
+                .with(schema("_core.mtermvectors", "Operation"), so -> so.withClassName("MultiTermVectorsOperation"))
+                .with(schema("_core.mtermvectors", "TermVectorsResult"), so -> so.withClassName("MultiTermVectorsResult"))
+
+                .with(schema("_core.reindex", "Source"), so -> so.withProperties(p -> p.with("_source", po -> po.withName("sourceFields"))))
+
                 .with(
                     schema("_core.search", "SourceFilter").append("oneOf", "1"),
                     so -> so.withAliasProvider(k -> k.endsWith("cludes") ? Set.of(k.substring(0, k.length() - 1)) : null)

java-codegen/src/main/java/org/opensearch/client/codegen/model/overrides/Overrides.java

@@ -16,7 +16,7 @@ public final class Markdown {
     private Markdown() {}
 
     private static final Parser PARSER = Parser.builder().build();
-    private static final HtmlRenderer RENDERER = HtmlRenderer.builder().omitSingleParagraphP(true).build();
+    private static final HtmlRenderer RENDERER = HtmlRenderer.builder().escapeHtml(true).omitSingleParagraphP(true).build();
 
     @Nonnull
     public static String toJavaDocHtml(@Nonnull String markdown) {

java-codegen/src/main/java/org/opensearch/client/codegen/utils/Markdown.java

@@ -14,6 +14,7 @@
 public final class Versions {
     private Versions() {}
 
+    public static final Semver V1_0_0 = Semver.of(1, 0, 0);
     public static final Semver V2_0_0 = Semver.of(2, 0, 0);
 
     @Nonnull