add parse t-sql script handler (#1561)

* add parse t-sql script handler

* handle error

Packages.props

@@ -22,7 +22,7 @@
 		<PackageReference Update="Microsoft.Data.SqlClient" Version="3.1.0" />
 		<PackageReference Update="Microsoft.SqlServer.SqlManagementObjects" Version="161.47021.0" />
 		<PackageReference Update="Microsoft.SqlServer.Management.SmoMetadataProvider" Version="161.47008.0" />
-		<PackageReference Update="Microsoft.SqlServer.DACFx" Version="160.6188.0-preview" GeneratePathProperty="true" />
+		<PackageReference Update="Microsoft.SqlServer.DACFx" Version="160.6208.0-preview" GeneratePathProperty="true" />
 		<PackageReference Update="Microsoft.Azure.Kusto.Data" Version="9.0.4" />
 		<PackageReference Update="Microsoft.Azure.Kusto.Language" Version="9.0.4" />
 		<PackageReference Update="Microsoft.SqlServer.Assessment" Version="[1.0.305]" />

src/Microsoft.SqlTools.ServiceLayer/DacFx/Contracts/ParseTSqlScriptRequest.cs

@@ -0,0 +1,42 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+using Microsoft.SqlTools.Hosting.Protocol.Contracts;
+using Microsoft.SqlTools.ServiceLayer.Utility;
+
+namespace Microsoft.SqlTools.ServiceLayer.DacFx.Contracts
+{
+    /// <summary>
+    /// Parameters for a parse T-SQL script request.
+    /// </summary>
+    public class ParseTSqlScriptRequestParams
+    {
+        /// <summary>
+        /// Gets or sets the script content
+        /// </summary>
+        public string Script { get; set; }
+
+        /// <summary>
+        /// Gets or sets the DSP.
+        /// </summary>
+        public string DatabaseSchemaProvider { get; set;}
+    }
+
+    /// <summary>
+    /// Result for the ParseTSqlScript Request.
+    /// </summary>
+    public class ParseTSqlScriptResult : ResultStatus
+    {
+        public bool ContainsCreateTableStatement { get; set; }
+    }
+
+    /// <summary>
+    /// Defines the parse T-SQL script request type
+    /// </summary>
+    class ParseTSqlScriptRequest
+    {
+        public static readonly RequestType<ParseTSqlScriptRequestParams, ParseTSqlScriptResult> Type =
+            RequestType<ParseTSqlScriptRequestParams, ParseTSqlScriptResult>.Create("dacfx/parseTSqlScript");
+    }
+}

src/Microsoft.SqlTools.ServiceLayer/DacFx/DacFxService.cs

@@ -11,6 +11,7 @@ using Microsoft.SqlTools.ServiceLayer.Connection;
 using Microsoft.SqlTools.ServiceLayer.DacFx.Contracts;
 using Microsoft.SqlTools.ServiceLayer.Hosting;
 using Microsoft.SqlTools.ServiceLayer.TaskServices;
+using DacTableDesigner = Microsoft.Data.Tools.Sql.DesignServices.TableDesigner.TableDesigner;
 
 namespace Microsoft.SqlTools.ServiceLayer.DacFx
 {
@@ -48,6 +49,7 @@ namespace Microsoft.SqlTools.ServiceLayer.DacFx
             serviceHost.SetRequestHandler(GetOptionsFromProfileRequest.Type, this.HandleGetOptionsFromProfileRequest);
             serviceHost.SetRequestHandler(ValidateStreamingJobRequest.Type, this.HandleValidateStreamingJobRequest);
             serviceHost.SetRequestHandler(GetDefaultPublishOptionsRequest.Type, this.HandleGetDefaultPublishOptionsRequest);
+            serviceHost.SetRequestHandler(ParseTSqlScriptRequest.Type, this.HandleParseTSqlScriptRequest);
         }
 
         /// <summary>
@@ -305,6 +307,21 @@ namespace Microsoft.SqlTools.ServiceLayer.DacFx
             }
         }
 
+        public async Task HandleParseTSqlScriptRequest(ParseTSqlScriptRequestParams requestParams, RequestContext<ParseTSqlScriptResult> requestContext)
+        {
+            try
+            {
+                await requestContext.SendResult(new ParseTSqlScriptResult()
+                {
+                    ContainsCreateTableStatement = DacTableDesigner.ScriptContainsCreateTableStatements(requestParams.Script, requestParams.DatabaseSchemaProvider)
+                });
+            }
+            catch (Exception e)
+            {
+                await requestContext.SendError(e);
+            }
+        }
+
         private void ExecuteOperation(DacFxOperation operation, DacFxParams parameters, string taskName, RequestContext<DacFxResult> requestContext)
         {
             Task.Run(async () =>