[ML] modularize x-pack plugins ml and autoscaling

x-pack/plugin/autoscaling/src/main/java/module-info.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module org.elasticsearch.autoscaling {
+    requires org.apache.logging.log4j;
+    requires org.apache.lucene.core;
+
+    requires org.elasticsearch.base;
+    requires org.elasticsearch.server;
+    requires org.elasticsearch.xcontent;
+    requires org.elasticsearch.xcore;
+
+    exports org.elasticsearch.xpack.autoscaling.action;
+    exports org.elasticsearch.xpack.autoscaling.capacity;
+    exports org.elasticsearch.xpack.autoscaling;
+
+    provides org.elasticsearch.reservedstate.ReservedClusterStateHandlerProvider
+        with
+            org.elasticsearch.xpack.autoscaling.ReservedAutoscalingStateHandlerProvider;
+}

x-pack/plugin/ml/src/main/java/module-info.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module org.elasticsearch.ml {
+    requires org.elasticsearch.painless.spi;
+    requires org.apache.lucene.analysis.common;
+    requires org.elasticsearch.geo;
+    requires org.elasticsearch.logging;
+    requires org.elasticsearch.autoscaling;
+    requires org.elasticsearch.cli;
+    requires org.elasticsearch.xcore;
+    requires org.elasticsearch.base;
+    requires org.elasticsearch.grok;
+    requires org.elasticsearch.server;
+    requires org.elasticsearch.xcontent;
+    requires org.apache.httpcomponents.httpcore;
+    requires org.apache.httpcomponents.httpclient;
+    requires org.apache.httpcomponents.httpasyncclient;
+    requires org.apache.httpcomponents.httpcore.nio;
+    requires org.apache.logging.log4j;
+    requires org.apache.lucene.core;
+    requires org.apache.lucene.join;
+    requires commons.math3;
+
+    opens org.elasticsearch.xpack.ml to org.elasticsearch.painless.spi; // whitelist resource access
+    opens org.elasticsearch.xpack.ml.utils; // for exact.properties access
+
+    provides org.elasticsearch.painless.spi.PainlessExtension with org.elasticsearch.xpack.ml.MachineLearningPainlessExtension;
+    provides org.elasticsearch.xpack.autoscaling.AutoscalingExtension with org.elasticsearch.xpack.ml.autoscaling.MlAutoscalingExtension;
+
+    exports org.elasticsearch.xpack.ml;
+    exports org.elasticsearch.xpack.ml.action;
+    exports org.elasticsearch.xpack.ml.autoscaling;
+}

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/autoscaling/MlAutoscalingExtension.java

@@ -16,6 +16,10 @@
 public class MlAutoscalingExtension implements AutoscalingExtension {
     private final MachineLearning plugin;
 
+    public MlAutoscalingExtension() {
+        throw new IllegalStateException("Provider must be constructed using PluginsService");
+    }
+
     public MlAutoscalingExtension(MachineLearning plugin) {
         this.plugin = plugin;
     }

x-pack/plugin/ml/src/main/java/org/elasticsearch/xpack/ml/utils/DomainSplitFunction.java

@@ -86,8 +86,7 @@ public final class DomainSplitFunction {
 
     static {
         try (
-            var stream = DomainSplitFunction.class.getClassLoader()
-                .getResourceAsStream("org/elasticsearch/xpack/ml/transforms/exact.properties")
+            var stream = DomainSplitFunction.class.getClassLoader().getResourceAsStream("org/elasticsearch/xpack/ml/utils/exact.properties")
         ) {
             exact = Streams.readAllLines(stream)
                 .stream()