fix: Refactorings to build against opensearch version 3.0.0-SNAPSHOT

build.gradle

@@ -2,8 +2,10 @@ import java.nio.file.Files
 
 buildscript {
   repositories {
-    mavenCentral()
     mavenLocal()
+    maven { url "https://aws.oss.sonatype.org/content/repositories/snapshots" }
+    mavenCentral()
+    maven { url "https://plugins.gradle.org/m2/" }
   }
 
   dependencies {
@@ -56,8 +58,10 @@ opensearchplugin {
 // In this section you declare the dependencies for your production and test code
 // OpenSearch dependency is included due to the build-tools, test-framework as well
 repositories {
-  mavenCentral()
   mavenLocal()
+  maven { url "https://aws.oss.sonatype.org/content/repositories/snapshots" }
+  mavenCentral()
+  maven { url "https://plugins.gradle.org/m2/" }
 }
 
 dependencies {

gradle.properties

@@ -1,5 +1,5 @@
 ltrVersion = 2.17.1
-opensearchVersion = 2.17.1
+opensearchVersion = 3.0.0-SNAPSHOT
 luceneVersion = 9.7.0
 ow2Version = 9.6
 antlrVersion=4.11.1

src/main/java/com/o19s/es/ltr/action/LTRStatsAction.java

@@ -19,7 +19,6 @@
 import org.opensearch.action.ActionRequestBuilder;
 import org.opensearch.action.ActionType;
 import org.opensearch.action.FailedNodeException;
-import org.opensearch.action.support.nodes.BaseNodeRequest;
 import org.opensearch.action.support.nodes.BaseNodeResponse;
 import org.opensearch.action.support.nodes.BaseNodesRequest;
 import org.opensearch.action.support.nodes.BaseNodesResponse;
@@ -31,6 +30,7 @@
 import org.opensearch.core.xcontent.ToXContent;
 import org.opensearch.core.xcontent.ToXContentFragment;
 import org.opensearch.core.xcontent.XContentBuilder;
+import org.opensearch.transport.TransportRequest;
 
 import java.io.IOException;
 import java.util.HashSet;
@@ -55,7 +55,7 @@ public LTRStatsRequestBuilder(OpenSearchClient client) {
         }
     }
 
-    public static class LTRStatsNodeRequest extends BaseNodeRequest {
+    public static class LTRStatsNodeRequest extends TransportRequest {
         private final LTRStatsNodesRequest nodesRequest;
 
         public LTRStatsNodeRequest(LTRStatsNodesRequest nodesRequest) {

src/main/java/com/o19s/es/ltr/action/TransportCacheStatsAction.java

@@ -22,14 +22,14 @@
 import com.o19s.es.ltr.feature.store.index.Caches;
 import org.opensearch.action.FailedNodeException;
 import org.opensearch.action.support.ActionFilters;
-import org.opensearch.action.support.nodes.BaseNodeRequest;
 import org.opensearch.action.support.nodes.TransportNodesAction;
 import org.opensearch.cluster.metadata.IndexNameExpressionResolver;
 import org.opensearch.cluster.service.ClusterService;
 import org.opensearch.common.inject.Inject;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.threadpool.ThreadPool;
+import org.opensearch.transport.TransportRequest;
 import org.opensearch.transport.TransportService;
 
 import java.io.IOException;
@@ -71,7 +71,7 @@ protected CachesStatsNodeResponse nodeOperation(CachesStatsNodeRequest request)
         return new CachesStatsNodeResponse(clusterService.localNode()).initFromCaches(caches);
     }
 
-    public static class CachesStatsNodeRequest extends BaseNodeRequest {
+    public static class CachesStatsNodeRequest extends TransportRequest {
         public CachesStatsNodeRequest() {}
 
         public CachesStatsNodeRequest(StreamInput in) throws IOException {

src/main/java/com/o19s/es/ltr/action/TransportClearCachesAction.java

@@ -22,7 +22,6 @@
 import com.o19s.es.ltr.feature.store.index.Caches;
 import org.opensearch.action.FailedNodeException;
 import org.opensearch.action.support.ActionFilters;
-import org.opensearch.action.support.nodes.BaseNodeRequest;
 import org.opensearch.action.support.nodes.TransportNodesAction;
 import org.opensearch.cluster.metadata.IndexNameExpressionResolver;
 import org.opensearch.cluster.service.ClusterService;
@@ -31,6 +30,7 @@
 import org.opensearch.core.common.io.stream.StreamOutput;
 import org.opensearch.common.settings.Settings;
 import org.opensearch.threadpool.ThreadPool;
+import org.opensearch.transport.TransportRequest;
 import org.opensearch.transport.TransportService;
 
 import java.io.IOException;
@@ -88,7 +88,7 @@ protected ClearCachesNodeResponse nodeOperation(ClearCachesNodeRequest request)
         return new ClearCachesNodeResponse(clusterService.localNode());
     }
 
-    public static class ClearCachesNodeRequest extends BaseNodeRequest {
+    public static class ClearCachesNodeRequest extends TransportRequest {
         private ClearCachesNodesRequest request;
 
         public ClearCachesNodeRequest() {}

src/main/java/com/o19s/es/ltr/query/StoredLtrQueryBuilder.java

@@ -23,7 +23,6 @@
 import com.o19s.es.ltr.feature.store.index.IndexFeatureStore;
 import com.o19s.es.ltr.ranker.linear.LinearRanker;
 import com.o19s.es.ltr.utils.FeatureStoreLoader;
-import org.opensearch.Version;
 import org.opensearch.core.ParseField;
 import org.opensearch.core.common.ParsingException;
 import org.opensearch.core.common.io.stream.NamedWriteable;
@@ -90,10 +89,8 @@ public StoredLtrQueryBuilder(FeatureStoreLoader storeLoader, StreamInput input)
         featureScoreCacheFlag = input.readOptionalBoolean();
         featureSetName = input.readOptionalString();
         params = input.readMap();
-        if (input.getVersion().onOrAfter(Version.V_1_0_0)) {//TODO: check this.  In the Elastic LTR plugin this is set to 7_0_0
-            String[] activeFeat = input.readOptionalStringArray();
-            activeFeatures = activeFeat == null ? null : Arrays.asList(activeFeat);
-        }
+        String[] activeFeat = input.readOptionalStringArray();
+        activeFeatures = activeFeat == null ? null : Arrays.asList(activeFeat);
         storeName = input.readOptionalString();
     }
 
@@ -121,9 +118,7 @@ protected void doWriteTo(StreamOutput out) throws IOException {
         out.writeOptionalBoolean(featureScoreCacheFlag);
         out.writeOptionalString(featureSetName);
         out.writeMap(params);
-        if (out.getVersion().onOrAfter(Version.V_1_0_0)) {
-            out.writeOptionalStringArray(activeFeatures != null ? activeFeatures.toArray(new String[0]) : null);
-        }
+        out.writeOptionalStringArray(activeFeatures != null ? activeFeatures.toArray(new String[0]) : null);
         out.writeOptionalString(storeName);
     }