Add LeasesTableName to SqlTriggerAttribute

Worker.Extensions.Sql/src/SqlTriggerAttribute.cs

@@ -13,12 +13,21 @@ public sealed class SqlTriggerAttribute : TriggerBindingAttribute
         /// </summary>
         /// <param name="tableName">Name of the table to watch for changes.</param>
         /// <param name="connectionStringSetting">The name of the app setting where the SQL connection string is stored</param>
-        public SqlTriggerAttribute(string tableName, string connectionStringSetting)
+        /// <param name="leasesTableName">Optional - The name of the table used to store leases. If not specified, the leases table name will be Leases_{FunctionId}_{TableId}</param>
+        public SqlTriggerAttribute(string tableName, string connectionStringSetting, string leasesTableName = null)
         {
             this.TableName = tableName ?? throw new ArgumentNullException(nameof(tableName));
             this.ConnectionStringSetting = connectionStringSetting ?? throw new ArgumentNullException(nameof(connectionStringSetting));
+            this.LeasesTableName = leasesTableName;
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SqlTriggerAttribute"/> class with null value for LeasesTableName.
+        /// </summary>
+        /// <param name="tableName">Name of the table to watch for changes.</param>
+        /// <param name="connectionStringSetting">The name of the app setting where the SQL connection string is stored</param>
+        public SqlTriggerAttribute(string tableName, string connectionStringSetting) : this(tableName, connectionStringSetting, null) { }
+
         /// <summary>
         /// Name of the app setting containing the SQL connection string.
         /// </summary>
@@ -28,5 +37,13 @@ public SqlTriggerAttribute(string tableName, string connectionStringSetting)
         /// Name of the table to watch for changes.
         /// </summary>
         public string TableName { get; }
+
+        /// <summary>
+        /// Name of the table used to store leases.
+        /// If not specified, the leases table name will be Leases_{FunctionId}_{TableId}
+        /// More information on how this is generated can be found here
+        /// https://github.com/Azure/azure-functions-sql-extension/blob/release/trigger/docs/TriggerBinding.md#az_funcleases_
+        /// </summary>
+        public string LeasesTableName { get; }
     }
 }

samples/samples-csharp/TriggerBindingSamples/ProductsTriggerLeasesTableName.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+using Microsoft.Azure.WebJobs.Extensions.Sql.Samples.Common;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+
+namespace Microsoft.Azure.WebJobs.Extensions.Sql.Samples.TriggerBindingSamples
+{
+    public static class ProductsTriggerLeasesTableName
+    {
+        [FunctionName(nameof(ProductsTriggerLeasesTableName))]
+        public static void Run(
+            [SqlTrigger("[dbo].[Products]", "SqlConnectionString", "Leases")]
+            IReadOnlyList<SqlChange<Product>> changes,
+            ILogger logger)
+        {
+            logger.LogInformation("SQL Changes: " + JsonConvert.SerializeObject(changes));
+        }
+    }
+}

samples/samples-csx/ProductsTriggerLeasesTableName/function.json

@@ -0,0 +1,13 @@
+{
+  "bindings": [
+    {
+      "name": "changes",
+      "type": "sqlTrigger",
+      "direction": "in",
+      "tableName": "dbo.Products",
+      "connectionStringSetting": "SqlConnectionString",
+      "leasesTableName": "Leases"
+    }
+  ],
+  "disabled": false
+}

samples/samples-csx/ProductsTriggerLeasesTableName/run.csx

@@ -0,0 +1,14 @@
+#load "../Common/product.csx"
+#r "Newtonsoft.Json"
+#r "Microsoft.Azure.WebJobs.Extensions.Sql"
+
+using System.Net;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Primitives;
+using Newtonsoft.Json;
+using Microsoft.Azure.WebJobs.Extensions.Sql;
+
+public static void Run(IReadOnlyList<SqlChange<Product>> changes, ILogger log)
+{
+    log.LogInformation("SQL Changes: " + JsonConvert.SerializeObject(changes));
+}

samples/samples-js/ProductsTriggerLeasesTableName/function.json

@@ -0,0 +1,13 @@
+{
+    "bindings": [
+      {
+        "name": "changes",
+        "type": "sqlTrigger",
+        "direction": "in",
+        "tableName": "dbo.Products",
+        "connectionStringSetting": "SqlConnectionString",
+        "leasesTableName": "Leases"
+      }
+    ],
+    "disabled": false
+  }

samples/samples-js/ProductsTriggerLeasesTableName/index.js

@@ -0,0 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+module.exports = async function (context, changes) {
+    context.log(`SQL Changes: ${JSON.stringify(changes)}`)
+}

samples/samples-outofproc/TriggerBindingSamples/ProductsTriggerLeasesTableName.cs

@@ -0,0 +1,29 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+using Microsoft.Azure.Functions.Worker;
+using Microsoft.Azure.Functions.Worker.Extensions.Sql;
+using Microsoft.Azure.WebJobs.Extensions.Sql.SamplesOutOfProc.Common;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using System;
+
+namespace Microsoft.Azure.WebJobs.Extensions.Sql.SamplesOutOfProc.TriggerBindingSamples
+{
+    public class ProductsTriggerLeasesTableName
+    {
+        private static readonly Action<ILogger, string, Exception> _loggerMessage = LoggerMessage.Define<string>(LogLevel.Information, eventId: new EventId(0, "INFO"), formatString: "{Message}");
+
+        [Function("ProductsTriggerLeasesTableName")]
+        public static void Run(
+            [SqlTrigger("[dbo].[Products]", "SqlConnectionString", "Leases")]
+            IReadOnlyList<SqlChange<Product>> changes, FunctionContext context)
+        {
+            if (changes != null && changes.Count > 0)
+            {
+                _loggerMessage(context.GetLogger("ProductsTriggerLeasesTableName"), "SQL Changes: " + JsonConvert.SerializeObject(changes), null);
+            }
+        }
+    }
+}

samples/samples-powershell/ProductsTriggerLeasesTableName/function.json

@@ -0,0 +1,13 @@
+{
+    "bindings": [
+      {
+        "name": "changes",
+        "type": "sqlTrigger",
+        "direction": "in",
+        "tableName": "dbo.Products",
+        "connectionStringSetting": "SqlConnectionString",
+        "leasesTableName": "Leases"
+      }
+    ],
+    "disabled": false
+  }

samples/samples-powershell/ProductsTriggerLeasesTableName/run.ps1

@@ -0,0 +1,9 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+
+using namespace System.Net
+
+param($changes)
+
+$changesJson = $changes | ConvertTo-Json -Compress
+Write-Host "SQL Changes: $changesJson"

samples/samples-python/ProductsTriggerLeasesTableName/__init__.py

@@ -0,0 +1,8 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+import json
+import logging
+
+def main(changes):
+    logging.info("SQL Changes: %s", json.loads(changes))

samples/samples-python/ProductsTriggerLeasesTableName/function.json

@@ -0,0 +1,13 @@
+{
+    "bindings": [
+      {
+        "name": "changes",
+        "type": "sqlTrigger",
+        "direction": "in",
+        "tableName": "dbo.Products",
+        "connectionStringSetting": "SqlConnectionString",
+        "leasesTableName": "Leases"
+      }
+    ],
+    "disabled": false
+  }

src/TriggerBinding/SqlTriggerAttribute.cs

@@ -18,12 +18,21 @@ public sealed class SqlTriggerAttribute : Attribute
         /// </summary>
         /// <param name="tableName">Name of the table to watch for changes.</param>
         /// <param name="connectionStringSetting">The name of the app setting where the SQL connection string is stored</param>
-        public SqlTriggerAttribute(string tableName, string connectionStringSetting)
+        /// <param name="leasesTableName">Optional - The name of the table used to store leases. If not specified, the leases table name will be Leases_{FunctionId}_{TableId}</param>
+        public SqlTriggerAttribute(string tableName, string connectionStringSetting, string leasesTableName = null)
         {
             this.TableName = tableName ?? throw new ArgumentNullException(nameof(tableName));
             this.ConnectionStringSetting = connectionStringSetting ?? throw new ArgumentNullException(nameof(connectionStringSetting));
+            this.LeasesTableName = leasesTableName;
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SqlTriggerAttribute"/> class with null value for LeasesTableName.
+        /// </summary>
+        /// <param name="tableName">Name of the table to watch for changes.</param>
+        /// <param name="connectionStringSetting">The name of the app setting where the SQL connection string is stored</param>
+        public SqlTriggerAttribute(string tableName, string connectionStringSetting) : this(tableName, connectionStringSetting, null) { }
+
         /// <summary>
         /// Name of the app setting containing the SQL connection string.
         /// </summary>
@@ -34,5 +43,13 @@ public SqlTriggerAttribute(string tableName, string connectionStringSetting)
         /// Name of the table to watch for changes.
         /// </summary>
         public string TableName { get; }
+
+        /// <summary>
+        /// Name of the table used to store leases.
+        /// If not specified, the leases table name will be Leases_{FunctionId}_{TableId}
+        /// More information on how this is generated can be found here
+        /// https://github.com/Azure/azure-functions-sql-extension/blob/release/trigger/docs/TriggerBinding.md#az_funcleases_
+        /// </summary>
+        public string LeasesTableName { get; }
     }
 }

src/TriggerBinding/SqlTriggerBinding.cs

@@ -27,6 +27,7 @@ internal sealed class SqlTriggerBinding<T> : ITriggerBinding
     {
         private readonly string _connectionString;
         private readonly string _tableName;
+        private readonly string _leasesTableName;
         private readonly ParameterInfo _parameter;
         private readonly IHostIdProvider _hostIdProvider;
         private readonly ILogger _logger;
@@ -40,14 +41,16 @@ internal sealed class SqlTriggerBinding<T> : ITriggerBinding
         /// </summary>
         /// <param name="connectionString">SQL connection string used to connect to user database</param>
         /// <param name="tableName">Name of the user table</param>
+        /// <param name="leasesTableName">Optional - Name of the leases table</param>
         /// <param name="parameter">Trigger binding parameter information</param>
         /// <param name="hostIdProvider">Provider of unique host identifier</param>
         /// <param name="logger">Facilitates logging of messages</param>
         /// <param name="configuration">Provides configuration values</param>
-        public SqlTriggerBinding(string connectionString, string tableName, ParameterInfo parameter, IHostIdProvider hostIdProvider, ILogger logger, IConfiguration configuration)
+        public SqlTriggerBinding(string connectionString, string tableName, string leasesTableName, ParameterInfo parameter, IHostIdProvider hostIdProvider, ILogger logger, IConfiguration configuration)
         {
             this._connectionString = connectionString ?? throw new ArgumentNullException(nameof(connectionString));
             this._tableName = tableName ?? throw new ArgumentNullException(nameof(tableName));
+            this._leasesTableName = leasesTableName;
             this._parameter = parameter ?? throw new ArgumentNullException(nameof(parameter));
             this._hostIdProvider = hostIdProvider ?? throw new ArgumentNullException(nameof(hostIdProvider));
             this._logger = logger ?? throw new ArgumentNullException(nameof(logger));
@@ -72,7 +75,7 @@ public async Task<IListener> CreateListenerAsync(ListenerFactoryContext context)
             _ = context ?? throw new ArgumentNullException(nameof(context), "Missing listener context");
 
             string userFunctionId = await this.GetUserFunctionIdAsync();
-            return new SqlTriggerListener<T>(this._connectionString, this._tableName, userFunctionId, context.Executor, this._logger, this._configuration);
+            return new SqlTriggerListener<T>(this._connectionString, this._tableName, this._leasesTableName, userFunctionId, context.Executor, this._logger, this._configuration);
         }
 
         public ParameterDescriptor ToParameterDescriptor()

src/TriggerBinding/SqlTriggerBindingProvider.cs

@@ -87,10 +87,10 @@ public Task<ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext contex
                 bindingType = typeof(SqlTriggerBinding<>).MakeGenericType(userType);
             }
 
-            var constructorParameterTypes = new Type[] { typeof(string), typeof(string), typeof(ParameterInfo), typeof(IHostIdProvider), typeof(ILogger), typeof(IConfiguration) };
+            var constructorParameterTypes = new Type[] { typeof(string), typeof(string), typeof(string), typeof(ParameterInfo), typeof(IHostIdProvider), typeof(ILogger), typeof(IConfiguration) };
             ConstructorInfo bindingConstructor = bindingType.GetConstructor(constructorParameterTypes);
 
-            object[] constructorParameterValues = new object[] { connectionString, attribute.TableName, parameter, this._hostIdProvider, this._logger, this._configuration };
+            object[] constructorParameterValues = new object[] { connectionString, attribute.TableName, attribute.LeasesTableName, parameter, this._hostIdProvider, this._logger, this._configuration };
             var triggerBinding = (ITriggerBinding)bindingConstructor.Invoke(constructorParameterValues);
 
             return Task.FromResult(triggerBinding);

src/TriggerBinding/SqlTriggerConstants.cs

@@ -11,6 +11,8 @@ internal static class SqlTriggerConstants
 
         public const string LeasesTableNameFormat = "[" + SchemaName + "].[Leases_{0}]";
 
+        public const string UserDefinedLeasesTableNameFormat = "[" + SchemaName + "].{0}";
+
         public const string LeasesTableChangeVersionColumnName = "_az_func_ChangeVersion";
         public const string LeasesTableAttemptCountColumnName = "_az_func_AttemptCount";
         public const string LeasesTableLeaseExpirationTimeColumnName = "_az_func_LeaseExpirationTime";

src/TriggerBinding/SqlTriggerListener.cs

@@ -4,7 +4,6 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Globalization;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -40,6 +39,7 @@ internal sealed class SqlTriggerListener<T> : IListener, IScaleMonitorProvider,
 
         private readonly SqlObject _userTable;
         private readonly string _connectionString;
+        private readonly string _userDefinedLeasesTableName;
         private readonly string _userFunctionId;
         private readonly ITriggeredFunctionExecutor _executor;
         private readonly ILogger _logger;
@@ -61,14 +61,16 @@ internal sealed class SqlTriggerListener<T> : IListener, IScaleMonitorProvider,
         /// </summary>
         /// <param name="connectionString">SQL connection string used to connect to user database</param>
         /// <param name="tableName">Name of the user table</param>
+        /// <param name="userDefinedLeasesTableName">Optional - Name of the leases table</param>
         /// <param name="userFunctionId">Unique identifier for the user function</param>
         /// <param name="executor">Defines contract for triggering user function</param>
         /// <param name="logger">Facilitates logging of messages</param>
         /// <param name="configuration">Provides configuration values</param>
-        public SqlTriggerListener(string connectionString, string tableName, string userFunctionId, ITriggeredFunctionExecutor executor, ILogger logger, IConfiguration configuration)
+        public SqlTriggerListener(string connectionString, string tableName, string userDefinedLeasesTableName, string userFunctionId, ITriggeredFunctionExecutor executor, ILogger logger, IConfiguration configuration)
         {
             this._connectionString = !string.IsNullOrEmpty(connectionString) ? connectionString : throw new ArgumentNullException(nameof(connectionString));
             this._userTable = !string.IsNullOrEmpty(tableName) ? new SqlObject(tableName) : throw new ArgumentNullException(nameof(tableName));
+            this._userDefinedLeasesTableName = userDefinedLeasesTableName;
             this._userFunctionId = !string.IsNullOrEmpty(userFunctionId) ? userFunctionId : throw new ArgumentNullException(nameof(userFunctionId));
             this._executor = executor ?? throw new ArgumentNullException(nameof(executor));
             this._logger = logger ?? throw new ArgumentNullException(nameof(logger));
@@ -82,8 +84,8 @@ public SqlTriggerListener(string connectionString, string tableName, string user
             }
             this._hasConfiguredMaxChangesPerWorker = configuredMaxChangesPerWorker != null;
 
-            this._scaleMonitor = new SqlTriggerScaleMonitor(this._userFunctionId, this._userTable, this._connectionString, this._maxChangesPerWorker, this._logger);
-            this._targetScaler = new SqlTriggerTargetScaler(this._userFunctionId, this._userTable, this._connectionString, this._maxChangesPerWorker, this._logger);
+            this._scaleMonitor = new SqlTriggerScaleMonitor(this._userFunctionId, this._userTable, this._userDefinedLeasesTableName, this._connectionString, this._maxChangesPerWorker, this._logger);
+            this._targetScaler = new SqlTriggerTargetScaler(this._userFunctionId, this._userTable, this._userDefinedLeasesTableName, this._connectionString, this._maxChangesPerWorker, this._logger);
         }
 
         public void Cancel()
@@ -123,7 +125,7 @@ public async Task StartAsync(CancellationToken cancellationToken)
                     IReadOnlyList<(string name, string type)> primaryKeyColumns = await GetPrimaryKeyColumnsAsync(connection, userTableId, this._logger, this._userTable.FullName, cancellationToken);
                     IReadOnlyList<string> userTableColumns = await this.GetUserTableColumnsAsync(connection, userTableId, cancellationToken);
 
-                    string leasesTableName = string.Format(CultureInfo.InvariantCulture, LeasesTableNameFormat, $"{this._userFunctionId}_{userTableId}");
+                    string leasesTableName = GetLeasesTableName(this._userDefinedLeasesTableName, this._userFunctionId, userTableId);
                     this._telemetryProps[TelemetryPropertyName.LeasesTableName] = leasesTableName;
 
                     var transactionSw = Stopwatch.StartNew();