rebase

Signed-off-by: Ruirui Zhang <[email protected]>

Author: ruai0511

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/WorkloadManagementPlugin.java

@@ -11,6 +11,7 @@
 import org.opensearch.action.ActionRequest;
 import org.opensearch.cluster.metadata.IndexNameExpressionResolver;
 import org.opensearch.cluster.node.DiscoveryNodes;
+import org.opensearch.common.inject.Module;
 import org.opensearch.common.settings.ClusterSettings;
 import org.opensearch.common.settings.IndexScopedSettings;
 import org.opensearch.common.settings.Setting;
@@ -21,11 +22,12 @@
 import org.opensearch.plugin.wlm.action.GetQueryGroupAction;
 import org.opensearch.plugin.wlm.action.TransportCreateQueryGroupAction;
 import org.opensearch.plugin.wlm.action.TransportGetQueryGroupAction;
+import org.opensearch.plugin.wlm.action.TransportUpdateQueryGroupAction;
+import org.opensearch.plugin.wlm.action.UpdateQueryGroupAction;
 import org.opensearch.plugin.wlm.rest.RestCreateQueryGroupAction;
 import org.opensearch.plugin.wlm.rest.RestGetQueryGroupAction;
-import org.opensearch.plugin.wlm.service.QueryGroupPersistenceService;
-import org.opensearch.common.inject.Module;
 import org.opensearch.plugin.wlm.rest.RestUpdateQueryGroupAction;
+import org.opensearch.plugin.wlm.service.QueryGroupPersistenceService;
 import org.opensearch.plugins.ActionPlugin;
 import org.opensearch.plugins.Plugin;
 import org.opensearch.rest.RestController;

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/WorkloadManagementPluginModule.java

@@ -8,10 +8,8 @@
 
 package org.opensearch.plugin.wlm;
 
-import org.opensearch.cluster.metadata.QueryGroup;
 import org.opensearch.common.inject.AbstractModule;
-import org.opensearch.common.inject.TypeLiteral;
-import org.opensearch.plugin.wlm.service.Persistable;
+import org.opensearch.common.inject.Singleton;
 import org.opensearch.plugin.wlm.service.QueryGroupPersistenceService;
 
 /**
@@ -26,7 +24,6 @@ public WorkloadManagementPluginModule() {}
 
     @Override
     protected void configure() {
-        bind(new TypeLiteral<Persistable<QueryGroup>>() {
-        }).to(QueryGroupPersistenceService.class).asEagerSingleton();
+        bind(QueryGroupPersistenceService.class).in(Singleton.class);
     }
 }

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/TransportUpdateQueryGroupAction.java renamed to plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/action/TransportUpdateQueryGroupAction.java

@@ -6,27 +6,26 @@
  * compatible open source license.
  */
 
-package org.opensearch.plugin.wlm;
+package org.opensearch.plugin.wlm.action;
 
 import org.opensearch.action.support.ActionFilters;
 import org.opensearch.action.support.HandledTransportAction;
-import org.opensearch.cluster.metadata.QueryGroup;
 import org.opensearch.common.inject.Inject;
 import org.opensearch.core.action.ActionListener;
-import org.opensearch.plugin.wlm.service.Persistable;
+import org.opensearch.plugin.wlm.service.QueryGroupPersistenceService;
 import org.opensearch.tasks.Task;
 import org.opensearch.threadpool.ThreadPool;
 import org.opensearch.transport.TransportService;
 
 /**
- * Transport action for update QueryGroup
+ * Transport action to update QueryGroup
  *
- * @opensearch.internal
+ * @opensearch.experimental
  */
 public class TransportUpdateQueryGroupAction extends HandledTransportAction<UpdateQueryGroupRequest, UpdateQueryGroupResponse> {
 
     private final ThreadPool threadPool;
-    private final Persistable<QueryGroup> queryGroupPersistenceService;
+    private final QueryGroupPersistenceService queryGroupPersistenceService;
 
     /**
      * Constructor for TransportUpdateQueryGroupAction
@@ -35,15 +34,15 @@ public class TransportUpdateQueryGroupAction extends HandledTransportAction<Upda
      * @param transportService - a {@link TransportService} object
      * @param actionFilters - a {@link ActionFilters} object
      * @param threadPool - a {@link ThreadPool} object
-     * @param queryGroupPersistenceService - a {@link Persistable} object
+     * @param queryGroupPersistenceService - a {@link QueryGroupPersistenceService} object
      */
     @Inject
     public TransportUpdateQueryGroupAction(
         String actionName,
         TransportService transportService,
         ActionFilters actionFilters,
         ThreadPool threadPool,
-        Persistable<QueryGroup> queryGroupPersistenceService
+        QueryGroupPersistenceService queryGroupPersistenceService
     ) {
         super(UpdateQueryGroupAction.NAME, transportService, actionFilters, UpdateQueryGroupRequest::new);
         this.threadPool = threadPool;
@@ -52,6 +51,7 @@ public TransportUpdateQueryGroupAction(
 
     @Override
     protected void doExecute(Task task, UpdateQueryGroupRequest request, ActionListener<UpdateQueryGroupResponse> listener) {
-        threadPool.executor(ThreadPool.Names.GENERIC).execute(() -> queryGroupPersistenceService.update(request, listener));
+        threadPool.executor(ThreadPool.Names.GENERIC)
+            .execute(() -> queryGroupPersistenceService.updateInClusterStateMetadata(request, listener));
     }
 }

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/UpdateQueryGroupAction.java renamed to plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/action/UpdateQueryGroupAction.java

@@ -6,14 +6,14 @@
  * compatible open source license.
  */
 
-package org.opensearch.plugin.wlm;
+package org.opensearch.plugin.wlm.action;
 
 import org.opensearch.action.ActionType;
 
 /**
  * Transport action to update QueryGroup
  *
- * @opensearch.api
+ * @opensearch.experimental
  */
 public class UpdateQueryGroupAction extends ActionType<UpdateQueryGroupResponse> {
 

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/UpdateQueryGroupRequest.java renamed to plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/action/UpdateQueryGroupRequest.java

@@ -6,15 +6,14 @@
  * compatible open source license.
  */
 
-package org.opensearch.plugin.wlm;
+package org.opensearch.plugin.wlm.action;
 
 import org.opensearch.action.ActionRequest;
 import org.opensearch.action.ActionRequestValidationException;
 import org.opensearch.cluster.metadata.QueryGroup;
 import org.opensearch.cluster.metadata.QueryGroup.ResiliencyMode;
 import org.opensearch.core.common.io.stream.StreamInput;
 import org.opensearch.core.common.io.stream.StreamOutput;
-import org.opensearch.core.common.io.stream.Writeable;
 import org.opensearch.core.xcontent.XContentParser;
 import org.opensearch.search.ResourceType;
 import org.joda.time.Instant;
@@ -26,18 +25,13 @@
 /**
  * A request for update QueryGroup
  *
- * @opensearch.internal
+ * @opensearch.experimental
  */
-public class UpdateQueryGroupRequest extends ActionRequest implements Writeable.Reader<UpdateQueryGroupRequest> {
-    String name;
-    Map<ResourceType, Double> resourceLimits;
-    private ResiliencyMode resiliencyMode;
-    long updatedAtInMillis;
-
-    /**
-     * Default constructor for UpdateQueryGroupRequest
-     */
-    public UpdateQueryGroupRequest() {}
+public class UpdateQueryGroupRequest extends ActionRequest {
+    private final String name;
+    private final Map<ResourceType, Double> resourceLimits;
+    private final ResiliencyMode resiliencyMode;
+    private final long updatedAtInMillis;
 
     /**
      * Constructor for UpdateQueryGroupRequest
@@ -83,64 +77,29 @@ public UpdateQueryGroupRequest(StreamInput in) throws IOException {
         }
         if (in.readBoolean()) {
             resiliencyMode = ResiliencyMode.fromName(in.readString());
+        } else {
+            resiliencyMode = null;
         }
         updatedAtInMillis = in.readLong();
     }
 
-    @Override
-    public UpdateQueryGroupRequest read(StreamInput in) throws IOException {
-        return new UpdateQueryGroupRequest(in);
-    }
-
     /**
      * Generate a UpdateQueryGroupRequest from XContent
      * @param parser - A {@link XContentParser} object
      * @param name - name of the QueryGroup to be updated
      */
     public static UpdateQueryGroupRequest fromXContent(XContentParser parser, String name) throws IOException {
-        while (parser.currentToken() != XContentParser.Token.START_OBJECT) {
-            parser.nextToken();
-        }
-
-        if (parser.currentToken() != XContentParser.Token.START_OBJECT) {
-            throw new IllegalArgumentException("expected start object but got a " + parser.currentToken());
-        }
-
-        XContentParser.Token token;
-        String fieldName = "";
-        ResiliencyMode mode = null;
-
-        // Map to hold resources
-        final Map<ResourceType, Double> resourceLimits = new HashMap<>();
-        while ((token = parser.nextToken()) != null) {
-            if (token == XContentParser.Token.FIELD_NAME) {
-                fieldName = parser.currentName();
-            } else if (token.isValue()) {
-                if (fieldName.equals("resiliency_mode")) {
-                    mode = ResiliencyMode.fromName(parser.text());
-                } else {
-                    throw new IllegalArgumentException("unrecognised [field=" + fieldName + " in QueryGroup");
-                }
-            } else if (token == XContentParser.Token.START_OBJECT) {
-                if (!fieldName.equals("resourceLimits")) {
-                    throw new IllegalArgumentException(
-                        "QueryGroup.resourceLimits is an object and expected token was { " + " but found " + token
-                    );
-                }
-                while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
-                    if (token == XContentParser.Token.FIELD_NAME) {
-                        fieldName = parser.currentName();
-                    } else {
-                        resourceLimits.put(ResourceType.fromName(fieldName), parser.doubleValue());
-                    }
-                }
-            }
-        }
-        return new UpdateQueryGroupRequest(name, mode, resourceLimits, Instant.now().getMillis());
+        QueryGroup.Builder builder = QueryGroup.Builder.fromXContent(parser);
+        return new UpdateQueryGroupRequest(name, builder.getResiliencyMode(), builder.getResourceLimits(), Instant.now().getMillis());
     }
 
     @Override
     public ActionRequestValidationException validate() {
+        QueryGroup.validateName(name);
+        if (resourceLimits != null) {
+            QueryGroup.validateResourceLimits(resourceLimits);
+        }
+        assert QueryGroup.isValid(updatedAtInMillis);
         return null;
     }
 
@@ -151,59 +110,27 @@ public String getName() {
         return name;
     }
 
-    /**
-     * name setter
-     * @param name - name to be set
-     */
-    public void setName(String name) {
-        this.name = name;
-    }
-
     /**
      * ResourceLimits getter
      */
     public Map<ResourceType, Double> getResourceLimits() {
         return resourceLimits;
     }
 
-    /**
-     * ResourceLimits setter
-     * @param resourceLimits - ResourceLimit to be set
-     */
-    public void setResourceLimits(Map<ResourceType, Double> resourceLimits) {
-        this.resourceLimits = resourceLimits;
-    }
-
     /**
      * resiliencyMode getter
      */
     public ResiliencyMode getResiliencyMode() {
         return resiliencyMode;
     }
 
-    /**
-     * resiliencyMode setter
-     * @param resiliencyMode - mode to be set
-     */
-    public void setResiliencyMode(ResiliencyMode resiliencyMode) {
-        this.resiliencyMode = resiliencyMode;
-    }
-
     /**
      * updatedAtInMillis getter
      */
     public long getUpdatedAtInMillis() {
         return updatedAtInMillis;
     }
 
-    /**
-     * updatedAtInMillis setter
-     * @param updatedAtInMillis - updatedAtInMillis to be set
-     */
-    public void setUpdatedAtInMillis(long updatedAtInMillis) {
-        this.updatedAtInMillis = updatedAtInMillis;
-    }
-
     @Override
     public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
@@ -212,7 +139,7 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeBoolean(false);
         } else {
             out.writeBoolean(true);
-            out.writeMap(resourceLimits, ResourceType::writeTo, StreamOutput::writeGenericValue);
+            out.writeMap(resourceLimits, ResourceType::writeTo, StreamOutput::writeDouble);
         }
         if (resiliencyMode == null) {
             out.writeBoolean(false);

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/UpdateQueryGroupResponse.java renamed to plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/action/UpdateQueryGroupResponse.java

@@ -6,7 +6,7 @@
  * compatible open source license.
  */
 
-package org.opensearch.plugin.wlm;
+package org.opensearch.plugin.wlm.action;
 
 import org.opensearch.cluster.metadata.QueryGroup;
 import org.opensearch.core.action.ActionResponse;
@@ -22,7 +22,7 @@
 /**
  * Response for the update API for QueryGroup
  *
- * @opensearch.internal
+ * @opensearch.experimental
  */
 public class UpdateQueryGroupResponse extends ActionResponse implements ToXContent, ToXContentObject {
     private final QueryGroup queryGroup;

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/rest/RestGetQueryGroupAction.java

@@ -27,7 +27,7 @@
 import static org.opensearch.rest.RestRequest.Method.GET;
 
 /**
- * Rest action to get a QueryGroup0
+ * Rest action to get a QueryGroup
  *
  * @opensearch.experimental
  */

plugins/workload-management/src/main/java/org/opensearch/plugin/wlm/rest/RestUpdateQueryGroupAction.java

@@ -12,9 +12,9 @@
 import org.opensearch.core.rest.RestStatus;
 import org.opensearch.core.xcontent.ToXContent;
 import org.opensearch.core.xcontent.XContentParser;
-import org.opensearch.plugin.wlm.UpdateQueryGroupAction;
-import org.opensearch.plugin.wlm.UpdateQueryGroupRequest;
-import org.opensearch.plugin.wlm.UpdateQueryGroupResponse;
+import org.opensearch.plugin.wlm.action.UpdateQueryGroupAction;
+import org.opensearch.plugin.wlm.action.UpdateQueryGroupRequest;
+import org.opensearch.plugin.wlm.action.UpdateQueryGroupResponse;
 import org.opensearch.rest.BaseRestHandler;
 import org.opensearch.rest.BytesRestResponse;
 import org.opensearch.rest.RestChannel;
@@ -31,7 +31,7 @@
 /**
  * Rest action to update a QueryGroup
  *
- * @opensearch.api
+ * @opensearch.experimental
  */
 public class RestUpdateQueryGroupAction extends BaseRestHandler {
 
@@ -50,23 +50,15 @@ public String getName() {
      */
     @Override
     public List<Route> routes() {
-        return List.of(new Route(POST, "_query_group/{name}"), new Route(PUT, "_query_group/{name}"));
+        return List.of(new Route(POST, "_wlm/query_group/{name}"), new Route(PUT, "_wlm/query_group/{name}"));
     }
 
     @Override
     protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) throws IOException {
-        String name = request.param("name");
-        UpdateQueryGroupRequest updateQueryGroupRequest = new UpdateQueryGroupRequest();
-        request.applyContentParser((parser) -> parseRestRequest(updateQueryGroupRequest, parser, name));
-        return channel -> client.execute(UpdateQueryGroupAction.INSTANCE, updateQueryGroupRequest, updateQueryGroupResponse(channel));
-    }
-
-    private void parseRestRequest(UpdateQueryGroupRequest request, XContentParser parser, String name) throws IOException {
-        final UpdateQueryGroupRequest updateQueryGroupRequest = UpdateQueryGroupRequest.fromXContent(parser, name);
-        request.setName(updateQueryGroupRequest.getName());
-        request.setResourceLimits(updateQueryGroupRequest.getResourceLimits());
-        request.setResiliencyMode(updateQueryGroupRequest.getResiliencyMode());
-        request.setUpdatedAtInMillis(updateQueryGroupRequest.getUpdatedAtInMillis());
+        try (XContentParser parser = request.contentParser()) {
+            UpdateQueryGroupRequest updateQueryGroupRequest = UpdateQueryGroupRequest.fromXContent(parser, request.param("name"));
+            return channel -> client.execute(UpdateQueryGroupAction.INSTANCE, updateQueryGroupRequest, updateQueryGroupResponse(channel));
+        }
     }
 
     private RestResponseListener<UpdateQueryGroupResponse> updateQueryGroupResponse(final RestChannel channel) {