Handle Describe,Refresh and Show Queries Properly

spark/src/main/antlr/FlintSparkSqlExtensions.g4

@@ -79,6 +79,7 @@ dropCoveringIndexStatement
 
 materializedViewStatement
     : createMaterializedViewStatement
+    | refreshMaterializedViewStatement
     | showMaterializedViewStatement
     | describeMaterializedViewStatement
     | dropMaterializedViewStatement
@@ -90,6 +91,10 @@ createMaterializedViewStatement
         (WITH LEFT_PAREN propertyList RIGHT_PAREN)?
     ;
 
+refreshMaterializedViewStatement
+    : REFRESH MATERIALIZED VIEW mvName=multipartIdentifier
+    ;
+
 showMaterializedViewStatement
     : SHOW MATERIALIZED (VIEW | VIEWS) IN catalogDb=multipartIdentifier
     ;

spark/src/main/java/org/opensearch/sql/spark/dispatcher/SparkQueryDispatcher.java

@@ -36,10 +36,7 @@
 import org.opensearch.sql.spark.asyncquery.model.SparkSubmitParameters;
 import org.opensearch.sql.spark.client.EMRServerlessClient;
 import org.opensearch.sql.spark.client.StartJobRequest;
-import org.opensearch.sql.spark.dispatcher.model.DispatchQueryRequest;
-import org.opensearch.sql.spark.dispatcher.model.DispatchQueryResponse;
-import org.opensearch.sql.spark.dispatcher.model.IndexDetails;
-import org.opensearch.sql.spark.dispatcher.model.JobType;
+import org.opensearch.sql.spark.dispatcher.model.*;
 import org.opensearch.sql.spark.execution.session.CreateSessionRequest;
 import org.opensearch.sql.spark.execution.session.Session;
 import org.opensearch.sql.spark.execution.session.SessionId;
@@ -56,11 +53,10 @@
 public class SparkQueryDispatcher {
 
   private static final Logger LOG = LogManager.getLogger();
-
   public static final String INDEX_TAG_KEY = "index";
   public static final String DATASOURCE_TAG_KEY = "datasource";
   public static final String CLUSTER_NAME_TAG_KEY = "cluster";
-  public static final String JOB_TYPE_TAG_KEY = "job_type";
+  public static final String JOB_TYPE_TAG_KEY = "type";
 
   private EMRServerlessClient emrServerlessClient;
 
@@ -107,15 +103,18 @@ public String cancelJob(AsyncQueryJobMetadata asyncQueryJobMetadata) {
   }
 
   private DispatchQueryResponse handleSQLQuery(DispatchQueryRequest dispatchQueryRequest) {
-    if (SQLQueryUtils.isIndexQuery(dispatchQueryRequest.getQuery())) {
-      IndexDetails indexDetails =
+    if (SQLQueryUtils.isFlintExtensionQuery(dispatchQueryRequest.getQuery())) {
+      IndexQueryDetails indexQueryDetails =
           SQLQueryUtils.extractIndexDetails(dispatchQueryRequest.getQuery());
-      fillMissingDetails(dispatchQueryRequest, indexDetails);
+      fillMissingDetails(dispatchQueryRequest, indexQueryDetails);
 
-      if (indexDetails.isDropIndex()) {
-        return handleDropIndexQuery(dispatchQueryRequest, indexDetails);
+      // TODO: refactor this code properly.
+      if (IndexQueryActionType.DROP.equals(indexQueryDetails.getIndexQueryActionType())) {
+        return handleDropIndexQuery(dispatchQueryRequest, indexQueryDetails);
+      } else if (IndexQueryActionType.CREATE.equals(indexQueryDetails.getIndexQueryActionType())) {
+        return handleStreamingQueries(dispatchQueryRequest, indexQueryDetails);
       } else {
-        return handleIndexQuery(dispatchQueryRequest, indexDetails);
+        return handleFlintNonStreamingQueries(dispatchQueryRequest, indexQueryDetails);
       }
     } else {
       return handleNonIndexQuery(dispatchQueryRequest);
@@ -127,24 +126,59 @@ private DispatchQueryResponse handleSQLQuery(DispatchQueryRequest dispatchQueryR
   // Spark Assumes the datasource to be catalog.
   // This is required to handle drop index case properly when datasource name is not provided.
   private static void fillMissingDetails(
-      DispatchQueryRequest dispatchQueryRequest, IndexDetails indexDetails) {
-    if (indexDetails.getFullyQualifiedTableName() != null
-        && indexDetails.getFullyQualifiedTableName().getDatasourceName() == null) {
-      indexDetails
+      DispatchQueryRequest dispatchQueryRequest, IndexQueryDetails indexQueryDetails) {
+    if (indexQueryDetails.getFullyQualifiedTableName() != null
+        && indexQueryDetails.getFullyQualifiedTableName().getDatasourceName() == null) {
+      indexQueryDetails
           .getFullyQualifiedTableName()
           .setDatasourceName(dispatchQueryRequest.getDatasource());
     }
   }
 
-  private DispatchQueryResponse handleIndexQuery(
-      DispatchQueryRequest dispatchQueryRequest, IndexDetails indexDetails) {
+  private DispatchQueryResponse handleStreamingQueries(
+      DispatchQueryRequest dispatchQueryRequest, IndexQueryDetails indexQueryDetails) {
+    DataSourceMetadata dataSourceMetadata =
+        this.dataSourceService.getRawDataSourceMetadata(dispatchQueryRequest.getDatasource());
+    dataSourceUserAuthorizationHelper.authorizeDataSource(dataSourceMetadata);
+    String jobName = dispatchQueryRequest.getClusterName() + ":" + "index-query";
+    Map<String, String> tags = getDefaultTagsForJobSubmission(dispatchQueryRequest);
+    tags.put(INDEX_TAG_KEY, indexQueryDetails.openSearchIndexName());
+    if (indexQueryDetails.isAutoRefresh()) {
+      tags.put(JOB_TYPE_TAG_KEY, JobType.STREAMING.getText());
+    }
+    StartJobRequest startJobRequest =
+        new StartJobRequest(
+            dispatchQueryRequest.getQuery(),
+            jobName,
+            dispatchQueryRequest.getApplicationId(),
+            dispatchQueryRequest.getExecutionRoleARN(),
+            SparkSubmitParameters.Builder.builder()
+                .dataSource(
+                    dataSourceService.getRawDataSourceMetadata(
+                        dispatchQueryRequest.getDatasource()))
+                .structuredStreaming(indexQueryDetails.isAutoRefresh())
+                .extraParameters(dispatchQueryRequest.getExtraSparkSubmitParams())
+                .build()
+                .toString(),
+            tags,
+            indexQueryDetails.isAutoRefresh(),
+            dataSourceMetadata.getResultIndex());
+    String jobId = emrServerlessClient.startJobRun(startJobRequest);
+    return new DispatchQueryResponse(
+        AsyncQueryId.newAsyncQueryId(dataSourceMetadata.getName()),
+        jobId,
+        false,
+        dataSourceMetadata.getResultIndex(),
+        null);
+  }
+
+  private DispatchQueryResponse handleFlintNonStreamingQueries(
+      DispatchQueryRequest dispatchQueryRequest, IndexQueryDetails indexQueryDetails) {
     DataSourceMetadata dataSourceMetadata =
         this.dataSourceService.getRawDataSourceMetadata(dispatchQueryRequest.getDatasource());
     dataSourceUserAuthorizationHelper.authorizeDataSource(dataSourceMetadata);
     String jobName = dispatchQueryRequest.getClusterName() + ":" + "index-query";
     Map<String, String> tags = getDefaultTagsForJobSubmission(dispatchQueryRequest);
-    tags.put(INDEX_TAG_KEY, indexDetails.openSearchIndexName());
-    tags.put(JOB_TYPE_TAG_KEY, JobType.STREAMING.getText());
     StartJobRequest startJobRequest =
         new StartJobRequest(
             dispatchQueryRequest.getQuery(),
@@ -155,12 +189,11 @@ private DispatchQueryResponse handleIndexQuery(
                 .dataSource(
                     dataSourceService.getRawDataSourceMetadata(
                         dispatchQueryRequest.getDatasource()))
-                .structuredStreaming(indexDetails.isAutoRefresh())
                 .extraParameters(dispatchQueryRequest.getExtraSparkSubmitParams())
                 .build()
                 .toString(),
             tags,
-            indexDetails.isAutoRefresh(),
+            indexQueryDetails.isAutoRefresh(),
             dataSourceMetadata.getResultIndex());
     String jobId = emrServerlessClient.startJobRun(startJobRequest);
     return new DispatchQueryResponse(
@@ -242,11 +275,12 @@ private DispatchQueryResponse handleNonIndexQuery(DispatchQueryRequest dispatchQ
   }
 
   private DispatchQueryResponse handleDropIndexQuery(
-      DispatchQueryRequest dispatchQueryRequest, IndexDetails indexDetails) {
+      DispatchQueryRequest dispatchQueryRequest, IndexQueryDetails indexQueryDetails) {
     DataSourceMetadata dataSourceMetadata =
         this.dataSourceService.getRawDataSourceMetadata(dispatchQueryRequest.getDatasource());
     dataSourceUserAuthorizationHelper.authorizeDataSource(dataSourceMetadata);
-    FlintIndexMetadata indexMetadata = flintIndexMetadataReader.getFlintIndexMetadata(indexDetails);
+    FlintIndexMetadata indexMetadata =
+        flintIndexMetadataReader.getFlintIndexMetadata(indexQueryDetails);
     // if index is created without auto refresh. there is no job to cancel.
     String status = JobRunState.FAILED.toString();
     try {
@@ -255,7 +289,7 @@ private DispatchQueryResponse handleDropIndexQuery(
             dispatchQueryRequest.getApplicationId(), indexMetadata.getJobId());
       }
     } finally {
-      String indexName = indexDetails.openSearchIndexName();
+      String indexName = indexQueryDetails.openSearchIndexName();
       try {
         AcknowledgedResponse response =
             client.admin().indices().delete(new DeleteIndexRequest().indices(indexName)).get();

spark/src/main/java/org/opensearch/sql/spark/dispatcher/model/IndexQueryActionType.java

@@ -0,0 +1,15 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.opensearch.sql.spark.dispatcher.model;
+
+/** Enum for Index Action in the given query.* */
+public enum IndexQueryActionType {
+  CREATE,
+  REFRESH,
+  DESCRIBE,
+  SHOW,
+  DROP
+}

spark/src/main/java/org/opensearch/sql/spark/dispatcher/model/IndexDetails.java → spark/src/main/java/org/opensearch/sql/spark/dispatcher/model/IndexQueryDetails.java

@@ -5,7 +5,6 @@
 
 package org.opensearch.sql.spark.dispatcher.model;
 
-import com.google.common.base.Preconditions;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import org.apache.commons.lang3.StringUtils;
@@ -14,83 +13,67 @@
 /** Index details in an async query. */
 @Getter
 @EqualsAndHashCode
-public class IndexDetails {
+public class IndexQueryDetails {
 
   public static final String STRIP_CHARS = "`";
 
   private String indexName;
   private FullyQualifiedTableName fullyQualifiedTableName;
   // by default, auto_refresh = false;
   private boolean autoRefresh;
-  private boolean isDropIndex;
+  private IndexQueryActionType indexQueryActionType;
   // materialized view special case where
   // table name and mv name are combined.
   private String mvName;
   private FlintIndexType indexType;
 
-  private IndexDetails() {}
+  private IndexQueryDetails() {}
 
-  public static IndexDetailsBuilder builder() {
-    return new IndexDetailsBuilder();
+  public static IndexQueryDetailsBuilder builder() {
+    return new IndexQueryDetailsBuilder();
   }
 
   // Builder class
-  public static class IndexDetailsBuilder {
-    private final IndexDetails indexDetails;
+  public static class IndexQueryDetailsBuilder {
+    private final IndexQueryDetails indexQueryDetails;
 
-    public IndexDetailsBuilder() {
-      indexDetails = new IndexDetails();
+    public IndexQueryDetailsBuilder() {
+      indexQueryDetails = new IndexQueryDetails();
     }
 
-    public IndexDetailsBuilder indexName(String indexName) {
-      indexDetails.indexName = indexName;
+    public IndexQueryDetailsBuilder indexName(String indexName) {
+      indexQueryDetails.indexName = indexName;
       return this;
     }
 
-    public IndexDetailsBuilder fullyQualifiedTableName(FullyQualifiedTableName tableName) {
-      indexDetails.fullyQualifiedTableName = tableName;
+    public IndexQueryDetailsBuilder fullyQualifiedTableName(FullyQualifiedTableName tableName) {
+      indexQueryDetails.fullyQualifiedTableName = tableName;
       return this;
     }
 
-    public IndexDetailsBuilder autoRefresh(Boolean autoRefresh) {
-      indexDetails.autoRefresh = autoRefresh;
+    public IndexQueryDetailsBuilder autoRefresh(Boolean autoRefresh) {
+      indexQueryDetails.autoRefresh = autoRefresh;
       return this;
     }
 
-    public IndexDetailsBuilder isDropIndex(boolean isDropIndex) {
-      indexDetails.isDropIndex = isDropIndex;
+    public IndexQueryDetailsBuilder indexQueryActionType(
+        IndexQueryActionType indexQueryActionType) {
+      indexQueryDetails.indexQueryActionType = indexQueryActionType;
       return this;
     }
 
-    public IndexDetailsBuilder mvName(String mvName) {
-      indexDetails.mvName = mvName;
+    public IndexQueryDetailsBuilder mvName(String mvName) {
+      indexQueryDetails.mvName = mvName;
       return this;
     }
 
-    public IndexDetailsBuilder indexType(FlintIndexType indexType) {
-      indexDetails.indexType = indexType;
+    public IndexQueryDetailsBuilder indexType(FlintIndexType indexType) {
+      indexQueryDetails.indexType = indexType;
       return this;
     }
 
-    public IndexDetails build() {
-      Preconditions.checkNotNull(indexDetails.indexType, "Index Type can't be null");
-      switch (indexDetails.indexType) {
-        case COVERING:
-          Preconditions.checkNotNull(
-              indexDetails.indexName, "IndexName can't be null for Covering Index.");
-          Preconditions.checkNotNull(
-              indexDetails.fullyQualifiedTableName, "TableName can't be null for Covering Index.");
-          break;
-        case SKIPPING:
-          Preconditions.checkNotNull(
-              indexDetails.fullyQualifiedTableName, "TableName can't be null for Skipping Index.");
-          break;
-        case MATERIALIZED_VIEW:
-          Preconditions.checkNotNull(indexDetails.mvName, "Materialized view name can't be null");
-          break;
-      }
-
-      return indexDetails;
+    public IndexQueryDetails build() {
+      return indexQueryDetails;
     }
   }
 

spark/src/main/java/org/opensearch/sql/spark/execution/session/InteractiveSession.java

@@ -34,6 +34,8 @@
 public class InteractiveSession implements Session {
   private static final Logger LOG = LogManager.getLogger();
 
+  public static final String SESSION_ID_TAG_KEY = "sid";
+
   private final SessionId sessionId;
   private final StateStore stateStore;
   private final EMRServerlessClient serverlessClient;
@@ -46,6 +48,7 @@ public void open(CreateSessionRequest createSessionRequest) {
       createSessionRequest
           .getSparkSubmitParametersBuilder()
           .sessionExecution(sessionId.getSessionId(), createSessionRequest.getDatasourceName());
+      createSessionRequest.getTags().put(SESSION_ID_TAG_KEY, sessionId.getSessionId());
       String jobID = serverlessClient.startJobRun(createSessionRequest.getStartJobRequest());
       String applicationId = createSessionRequest.getStartJobRequest().getApplicationId();
 

spark/src/main/java/org/opensearch/sql/spark/flint/FlintIndexMetadataReader.java

@@ -1,15 +1,15 @@
 package org.opensearch.sql.spark.flint;
 
-import org.opensearch.sql.spark.dispatcher.model.IndexDetails;
+import org.opensearch.sql.spark.dispatcher.model.IndexQueryDetails;
 
 /** Interface for FlintIndexMetadataReader */
 public interface FlintIndexMetadataReader {
 
   /**
    * Given Index details, get the streaming job Id.
    *
-   * @param indexDetails indexDetails.
+   * @param indexQueryDetails indexDetails.
    * @return FlintIndexMetadata.
    */
-  FlintIndexMetadata getFlintIndexMetadata(IndexDetails indexDetails);
+  FlintIndexMetadata getFlintIndexMetadata(IndexQueryDetails indexQueryDetails);
 }

spark/src/main/java/org/opensearch/sql/spark/flint/FlintIndexMetadataReaderImpl.java

@@ -5,7 +5,7 @@
 import org.opensearch.action.admin.indices.mapping.get.GetMappingsResponse;
 import org.opensearch.client.Client;
 import org.opensearch.cluster.metadata.MappingMetadata;
-import org.opensearch.sql.spark.dispatcher.model.IndexDetails;
+import org.opensearch.sql.spark.dispatcher.model.IndexQueryDetails;
 
 /** Implementation of {@link FlintIndexMetadataReader} */
 @AllArgsConstructor
@@ -14,8 +14,8 @@ public class FlintIndexMetadataReaderImpl implements FlintIndexMetadataReader {
   private final Client client;
 
   @Override
-  public FlintIndexMetadata getFlintIndexMetadata(IndexDetails indexDetails) {
-    String indexName = indexDetails.openSearchIndexName();
+  public FlintIndexMetadata getFlintIndexMetadata(IndexQueryDetails indexQueryDetails) {
+    String indexName = indexQueryDetails.openSearchIndexName();
     GetMappingsResponse mappingsResponse =
         client.admin().indices().prepareGetMappings(indexName).get();
     try {