Add the SubscriptionIteratorDefinition model

src/ServerlessWorkflow.Sdk.Builders/InputDataModelDefinitionBuilder.cs

@@ -0,0 +1,49 @@
+// Copyright © 2024-Present The Serverless Workflow Specification Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"),
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace ServerlessWorkflow.Sdk.Builders;
+
+/// <summary>
+/// Represents the default implementation of the <see cref="IInputDataModelDefinitionBuilder"/> interface
+/// </summary>
+public class InputDataModelDefinitionBuilder
+    : IInputDataModelDefinitionBuilder
+{
+
+    /// <summary>
+    /// Gets the <see cref="InputDataModelDefinition"/> to configure
+    /// </summary>
+    protected InputDataModelDefinition Input { get; } = new();
+
+    /// <inheritdoc/>
+    public virtual IInputDataModelDefinitionBuilder From(object expression)
+    {
+        ArgumentNullException.ThrowIfNull(expression);
+        this.Input.From = expression;
+        return this;
+    }
+
+    /// <inheritdoc/>
+    public virtual IInputDataModelDefinitionBuilder WithSchema(Action<ISchemaDefinitionBuilder> setup)
+    {
+        ArgumentNullException.ThrowIfNull(setup);
+        var builder = new SchemaDefinitionBuilder();
+        setup(builder);
+        this.Input.Schema = builder.Build();
+        return this;
+    }
+
+    /// <inheritdoc/>
+    public virtual InputDataModelDefinition Build() => this.Input;
+
+}

src/ServerlessWorkflow.Sdk.Builders/Interfaces/IInputDataModelDefinitionBuilder.cs

@@ -0,0 +1,42 @@
+// Copyright © 2024-Present The Serverless Workflow Specification Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"),
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace ServerlessWorkflow.Sdk.Builders;
+
+/// <summary>
+/// Defines the fundamentals of a service used to build <see cref="InputDataModelDefinition"/>s
+/// </summary>
+public interface IInputDataModelDefinitionBuilder
+{
+
+    /// <summary>
+    /// Configures the input data schema
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the input data schema</param>
+    /// <returns>The configured <see cref="IInputDataModelDefinitionBuilder"/></returns>
+    IInputDataModelDefinitionBuilder WithSchema(Action<ISchemaDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Configures the runtime expression used to filter the input data
+    /// </summary>
+    /// <param name="expression">The runtime expression used to filter the input data</param>
+    /// <returns>The configured <see cref="IInputDataModelDefinitionBuilder"/></returns>
+    IInputDataModelDefinitionBuilder From(object expression);
+
+    /// <summary>
+    /// Builds the configured <see cref="InputDataModelDefinition"/>
+    /// </summary>
+    /// <returns>A new <see cref="InputDataModelDefinition"/></returns>
+    InputDataModelDefinition Build();
+
+}

src/ServerlessWorkflow.Sdk.Builders/Interfaces/IListenTaskDefinitionBuilder.cs

@@ -25,6 +25,13 @@ public interface IListenTaskDefinitionBuilder
     /// </summary>
     /// <param name="setup">An <see cref="Action{T}"/> used to setup the task's listener target</param>
     /// <returns>The configured <see cref="IListenTaskDefinitionBuilder"/></returns>
-    IListenTaskDefinitionBuilder To(Action<IListenerTargetDefinitionBuilder> setup);
+    IListenTaskDefinitionBuilder To(Action<IListenerDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Configures the iterator used to process each consumed event
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the <see cref="SubscriptionIteratorDefinition"/> to use</param>
+    /// <returns>The configured <see cref="IListenTaskDefinitionBuilder"/></returns>
+    IListenTaskDefinitionBuilder Foreach(Action<ISubscriptionIteratorDefinitionBuilder> setup);
 
 }

src/ServerlessWorkflow.Sdk.Builders/Interfaces/IListenerDefinitionBuilder.cs

@@ -17,19 +17,20 @@ namespace ServerlessWorkflow.Sdk.Builders;
 /// Defines the fundamentals of a service used to build <see cref="ListenerDefinition"/>s
 /// </summary>
 public interface IListenerDefinitionBuilder
+    : IListenerTargetDefinitionBuilder
 {
 
     /// <summary>
-    /// Configures the 
+    /// Configures how to read consumed events
     /// </summary>
-    /// <param name="setup"></param>
-    /// <returns></returns>
-    IListenerDefinitionBuilder To(Action<IListenerTargetDefinitionBuilder> setup);
+    /// <param name="readMode">Specifies how consumed events should be read. See <see cref="EventReadMode"/>s</param>
+    /// <returns>The configured <see cref="IListenerDefinitionBuilder"/></returns>
+    IListenerDefinitionBuilder Read(string readMode);
 
     /// <summary>
     /// Builds the configured <see cref="ListenerDefinition"/>
     /// </summary>
     /// <returns>A new <see cref="ListenerDefinition"/></returns>
-    ListenerDefinition Build();
+    new ListenerDefinition Build();
 
 }

src/ServerlessWorkflow.Sdk.Builders/Interfaces/IOutputDataModelDefinitionBuilder.cs

@@ -0,0 +1,42 @@
+// Copyright © 2024-Present The Serverless Workflow Specification Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"),
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace ServerlessWorkflow.Sdk.Builders;
+
+/// <summary>
+/// Defines the fundamentals of a service used to build <see cref="OutputDataModelDefinition"/>s
+/// </summary>
+public interface IOutputDataModelDefinitionBuilder
+{
+
+    /// <summary>
+    /// Configures the output data schema
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the output data schema</param>
+    /// <returns>The configured <see cref="IOutputDataModelDefinitionBuilder"/></returns>
+    IOutputDataModelDefinitionBuilder WithSchema(Action<ISchemaDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Configures the runtime expression used to filter the data to output
+    /// </summary>
+    /// <param name="expression">The runtime expression used to filter the data to output</param>
+    /// <returns>The configured <see cref="IOutputDataModelDefinitionBuilder"/></returns>
+    IOutputDataModelDefinitionBuilder As(object expression);
+
+    /// <summary>
+    /// Builds the configured <see cref="OutputDataModelDefinition"/>
+    /// </summary>
+    /// <returns>A new <see cref="OutputDataModelDefinition"/></returns>
+    OutputDataModelDefinition Build();
+
+}

src/ServerlessWorkflow.Sdk.Builders/Interfaces/ISchemaDefinitionBuilder.cs

@@ -0,0 +1,49 @@
+// Copyright © 2024-Present The Serverless Workflow Specification Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"),
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace ServerlessWorkflow.Sdk.Builders;
+
+/// <summary>
+/// Defines the fundamentals of a service used to build <see cref="SchemaDefinition"/>s
+/// </summary>
+public interface ISchemaDefinitionBuilder
+{
+
+    /// <summary>
+    /// Sets the schema format
+    /// </summary>
+    /// <param name="format">The schema format</param>
+    /// <returns>The configured <see cref="ISchemaDefinitionBuilder"/></returns>
+    ISchemaDefinitionBuilder WithFormat(string format);
+
+    /// <summary>
+    /// Sets the schema's <see cref="ExternalResourceDefinition"/>
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the schema's <see cref="ExternalResourceDefinition"/></param>
+    /// <returns>The configured <see cref="ISchemaDefinitionBuilder"/></returns>
+    ISchemaDefinitionBuilder WithResource(Action<IExternalResourceDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Sets the schema document
+    /// </summary>
+    /// <param name="document">The schema document</param>
+    /// <returns>The configured <see cref="ISchemaDefinitionBuilder"/></returns>
+    ISchemaDefinitionBuilder WithDocument(object document);
+
+    /// <summary>
+    /// Builds the configured <see cref="SchemaDefinition"/>
+    /// </summary>
+    /// <returns>A new <see cref="SchemaDefinition"/></returns>
+    SchemaDefinition Build();
+
+}

src/ServerlessWorkflow.Sdk.Builders/Interfaces/ISubscriptionIteratorDefinitionBuilder.cs

@@ -0,0 +1,63 @@
+// Copyright © 2024-Present The Serverless Workflow Specification Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"),
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace ServerlessWorkflow.Sdk.Builders;
+
+/// <summary>
+/// Defines the fundamentals of a service used to build <see cref="SubscriptionIteratorDefinition"/>s
+/// </summary>
+public interface ISubscriptionIteratorDefinitionBuilder
+{
+
+    /// <summary>
+    /// Sets the name of the variable used to store the item being enumerated
+    /// </summary>
+    /// <param name="item">The name of the variable used to store the item being enumerated</param>
+    /// <returns>The configured <see cref="ISubscriptionIteratorDefinitionBuilder"/></returns>
+    ISubscriptionIteratorDefinitionBuilder Item(string item);
+
+    /// <summary>
+    /// Sets the name of the variable used to store the index of the item being enumerated
+    /// </summary>
+    /// <param name="at">The name of the variable used to store the index of the item being enumerated</param>
+    /// <returns>The configured <see cref="ISubscriptionIteratorDefinitionBuilder"/></returns>
+    ISubscriptionIteratorDefinitionBuilder At(string at);
+
+    /// <summary>
+    /// Sets the tasks to execute for each event or message consumed
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the tasks to execute for each event or message consumed</param>
+    /// <returns>The configured <see cref="ISubscriptionIteratorDefinitionBuilder"/></returns>
+    ISubscriptionIteratorDefinitionBuilder Do(Action<ITaskDefinitionMapBuilder> setup);
+
+    /// <summary>
+    /// Configures the output data of each item
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the output data</param>
+    /// <returns>The configured <see cref="ISubscriptionIteratorDefinitionBuilder"/></returns>
+    ISubscriptionIteratorDefinitionBuilder Output(Action<IOutputDataModelDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Configures the data exported by each item
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the exported data</param>
+    /// <returns>The configured <see cref="ISubscriptionIteratorDefinitionBuilder"/></returns>
+    ISubscriptionIteratorDefinitionBuilder Export(Action<IOutputDataModelDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Builds the configured <see cref="SubscriptionIteratorDefinition"/>
+    /// </summary>
+    /// <returns>A new <see cref="SubscriptionIteratorDefinition"/></returns>
+    SubscriptionIteratorDefinition Build();
+
+}

src/ServerlessWorkflow.Sdk.Builders/Interfaces/ITaskDefinitionBuilder.cs

@@ -44,26 +44,47 @@ public interface ITaskDefinitionBuilder<TBuilder>
     TBuilder If(string condition);
 
     /// <summary>
-    /// Sets the workflow's timeout
+    /// Sets the task's timeout
     /// </summary>
-    /// <param name="name">The name of the workflow's timeout</param>
+    /// <param name="name">The name of the task's timeout</param>
     /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
     TBuilder WithTimeout(string name);
 
     /// <summary>
-    /// Sets the workflow's timeout
+    /// Sets the task's timeout
     /// </summary>
-    /// <param name="timeout">The workflow's timeout</param>
+    /// <param name="timeout">The task's timeout</param>
     /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
     TBuilder WithTimeout(TimeoutDefinition timeout);
 
     /// <summary>
-    /// Sets the workflow's timeout
+    /// Sets the task's timeout
     /// </summary>
-    /// <param name="setup">An <see cref="Action{T}"/> used to setup the workflow's timeout</param>
+    /// <param name="setup">An <see cref="Action{T}"/> used to setup the task's timeout</param>
     /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
     TBuilder WithTimeout(Action<ITimeoutDefinitionBuilder> setup);
 
+    /// <summary>
+    /// Sets the task's input data
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the task's input</param>
+    /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
+    TBuilder WithInput(Action<IInputDataModelDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Sets the task's output data
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the task's output</param>
+    /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
+    TBuilder WithOutput(Action<IOutputDataModelDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Sets the data exported by the task
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the data exported by the task</param>
+    /// <returns>The configured <see cref="ITaskDefinitionBuilder{TBuilder}"/></returns>
+    TBuilder WithExport(Action<IOutputDataModelDefinitionBuilder> setup);
+
     /// <summary>
     /// Configures the task to build to then execute the specified flow directive
     /// </summary>

src/ServerlessWorkflow.Sdk.Builders/Interfaces/IWorkflowDefinitionBuilder.cs

@@ -98,6 +98,20 @@ public interface IWorkflowDefinitionBuilder
     /// <returns>The configured <see cref="IWorkflowDefinitionBuilder"/></returns>
     IWorkflowDefinitionBuilder WithTimeout(Action<ITimeoutDefinitionBuilder> setup);
 
+    /// <summary>
+    /// Sets the workflow's input data
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the workflow's input</param>
+    /// <returns>The configured <see cref="IWorkflowDefinitionBuilder"/></returns>
+    IWorkflowDefinitionBuilder WithInput(Action<IInputDataModelDefinitionBuilder> setup);
+
+    /// <summary>
+    /// Sets the workflow's output data
+    /// </summary>
+    /// <param name="setup">An <see cref="Action{T}"/> used to configure the workflow's output</param>
+    /// <returns>The configured <see cref="IWorkflowDefinitionBuilder"/></returns>
+    IWorkflowDefinitionBuilder WithOutput(Action<IOutputDataModelDefinitionBuilder> setup);
+
     /// <summary>
     /// Uses the specified authentication policy
     /// </summary>