* Refactor TenantId string handling and nullability checks.
Moved `StringExtensions` to a common module for reuse. Updated tenant-related logic to utilize null-safe string extensions, enhancing consistency and simplifying nullability handling across the codebase.
* Set StrictMode to false by default in ObjectConverter
Modified the default value of StrictMode to `false` to enable the original flexible behavior. Developers can opt into strict mode by explicitly setting it to `true`. This change aims to enhance backward compatibility and minimize unexpected strict conversions.
* Add tenant ID retrieval to ElsaDbContextBase constructor
Retrieve the current tenant ID if available using ITenantAccessor and assign it to the TenantId property. This ensures proper handling of multi-tenancy scenarios in the database context initialization.
* Disable DbContext pooling, manual OTEL instrumentation, and strict mode.
DbContext pooling is turned off to prevent potential issues with shared context instances. Manual OpenTelemetry instrumentation is disabled to rely on automatic instrumentation instead. Strict mode is also disabled to allow more flexibility in object conversion.
* Fix infinitely waiting Alterations Workflow
Replaced workflow dispatch logic with BookmarkQueue and StimulusHasher for triggering workflows. This fixes the issue where the Alterations workflow would signal completion while a later step awaits a completion bookmark. The Bookmark Queue now handles this.
* Add strict type checking for variable parsing
Introduced a `StrictMode` flag for variables, enforcing stricter type validation during parsing and conversions. Updated related methods and tests to reflect the stricter parsing behavior, ensuring consistent type compatibility and error handling.
* Refactor StrictMode handling and improve ObjectConverter logic
Moved StrictMode flag from Variable to ObjectConverter for better cohesion and updated related references. Additionally, removed unused parameters and simplified ObjectConverterOptions to streamline configuration and maintain consistency across the codebase.
* Refactor type conversion logic and update logging defaults
Improve type conversion reliability by introducing `TryConvertValue` and refining exception handling. Update JSON scenarios to use "Inherit" as the default for log persistence modes, ensuring consistency across configurations.
* Refactor exception handling in ObjectConverter.
Introduce a helper method `ReturnOrThrow` to streamline and centralize exception handling logic. This change also adds support for non-strict mode, allowing value fallback instead of throwing exceptions when enabled.
* Add numeric type checks and improve type conversion handling
Introduce `IsNumericType` extension method to identify numeric types. Enhance type conversion logic in `ObjectConverter` to handle numeric, boolean, and string types more accurately. Update variable deserialization workflows to handle conversion failures gracefully.
* Set a default comment for ObjectConverter.StrictMode assignment
Added a comment clarifying that StrictMode is set to its default value. This improves code readability and helps maintainers understand the intent.
* Fix formatting inconsistencies and improve code clarity
Removed redundant whitespace and adjusted formatting to align with coding standards. These changes enhance the readability and maintainability of the code without altering functionality.
* Fix typo in Program.cs variable comment
Corrected a minor issue in the comment for `identityTokenSection` to remove the unnecessary "Modify" text. This change improves code readability and removes potential confusion for developers.
* Simplify imports in ModifyVariableHandler.cs
Removed unused `Microsoft.Extensions.Options` and `Elsa.Workflows.Options` imports to clean up dependencies and improve maintainability. This change reduces clutter without affecting the existing functionality.
* Handle conversion of enumerables to arrays in ObjectConverter
Added functionality to convert enumerables to arrays when the target type is an array. The implementation ensures each item is properly cast to the target array's element type and then added to the resulting array.
* Add unit test for converting object array to double array
This commit introduces a new test ensuring the proper conversion of an object array of doubles to a double array. It verifies both the validity of the conversion and that the result is not null.
Refactored ObjectConverter to handle JSON array conversions more robustly, including support for arrays of complex types. Added a `Person` class for unit testing and updated tests to validate the new functionality. Included necessary project reference updates to ensure proper functionality.
Simplified object instantiations by replacing explicit type declarations with target-typed `new` expressions. This improves code readability and reduces redundancy in object initialization.
Replaced InputProxy with alternative implementations, adding flexibility to handle inputs. Introduced a JsonElementConverter to deepen JavaScript and JSON element integration. Enhanced testing and object conversion logic, improving type handling and support for complex JSON scenarios.
Added try-catch block to log failures when reading variables from storage, ensuring robust error handling. Also refined type checking for `ExpandoObject` deserialization in `ObjectConverter` to prevent invalid operations.
This update enables deserialization of JSON nodes into ExpandoObject via ObjectConverter. It improves type handling and interoperability with dynamic structures.
Refactored `StorageDriverContext` to include `Variable` and updated its usage across relevant methods to ensure context accuracy. Enhanced `ObjectConverter` to support conditional deserialization of JSON objects. Adjusted `WorkflowInstanceStorageDriver` to utilize improved variable resolution with new conversion options.
* Improve dispatched workflow input handling
Addressed input handling in dispatch messages by adding `SerializedInput` property. Also removed initialization logic and moved input deserialization to a helper method, ensuring compatibility with both new and deprecated input property formats.
* Update workflow Docker images and version tags
Changed Docker image tags from v3-2-0-rc3 to v3-2-1-preview across multiple GitHub workflows. Updated the VERSION environment variable in packages.yml to reflect the new versioning scheme. These changes ensure consistency with the new preview release.
* Update versioning to include 'preview' in package workflow
Modified the workflow to append 'preview' to the version number for non-tagged builds. This ensures clearer differentiation between stable and non-stable versions in the CI pipeline.
* Add WorkflowInstanceStorageDriver for workflow variable storage
Introduced a new storage driver, WorkflowInstanceStorageDriver, to store workflow variables directly in the workflow state. Updated relevant classes and methods to incorporate this new storage driver, ensuring seamless read/write/delete operations and extending support for it throughout the codebase.
* Refactor object conversion and update variable retrieval.
Switched from JsonObject to JsonNode for object conversion and corrected a typo in the summary comment. Changed the return type of GetVariablesDictionary method and updated its implementation to use VariablesDictionary.
* Rename 'input' to 'serializedInput' in DispatchWorkflowDefinition.
This change clarifies that the input provided to the workflow should be serialized. It enhances the readability and accuracy of the code documentation, ensuring that developers understand the expected format of the input parameter.
* Add priority and deprecation attributes to storage drivers
Introduced a priority attribute to the `IStorageDriver` interface and implemented it in various storage drivers. Additionally, marked `WorkflowStorageDriver` as deprecated and reordered storage driver listing based on priority.
* Switch MassTransit broker to in-memory and refactor converter
Changed MassTransit broker from AzureServiceBus to in-memory for improved performance in development environment. Simplified PolymorphicObjectConverterFactory by removing redundant constructor and dependencies. Removed unused folder from the project file.
Switched to dictionary index access for "ResumeAt" in Delay.cs to ensure more efficient updating. Added handling for byte[] in ObjectConverter.cs to correctly deserialize from base64 strings.
* Add "integrations" project and update dependencies
A new project named "integrations" has been added to the Elsa solution. Related dependencies have been updated accordingly, with some connections reassigned to the new project. This includes both new connections established and existing connections removed in response to the project addition.
* Stash
* Refactor ActivityDescriber to clean up unused code
Removed commented out code lines related to input options in the `ActivityDescriber` class. This change enhances code readability and maintains the focus on active and necessary functionality. The main logic for getting UI properties remains intact.
* Remove deprecated webhook dispatchers and handlers
Eliminated classes and interfaces related to webhook dispatching and registration from the Elsa.Webhooks module as part of refactoring. Introduced new classes and features for handling webhook events within the Elsa.OrchardCore module. Updated several configuration files and references accordingly.
* Add OrchardCore integration sample and enhance webhooks
Added a new ASP.NET sample for integrating with OrchardCore and set up various related configuration files and project references. Improved the webhooks module by modifying the WebhookEventActivityProvider for better event handling and description management, and enhanced the WebhooksFeature to include the WebhookEventActivityProvider.
* Set activity descriptor description from eventType.DisplayName
The activity descriptor now sets its Description property using the eventType's DisplayName. This ensures that the description is consistent with the event type's display name across the system.
* Rename 'Description' to 'DisplayName' for activity descriptor
This change ensures that 'DisplayName' is assigned the correct value from 'eventType.DisplayName'. It helps avoid any confusion between 'Description' and 'DisplayName' properties in the activity descriptor object.
* Add PayloadType and Constructor logic for Webhooks
Added PayloadType to content item published events in `appsettings.json`. Updated `WebhookEventActivityProvider` to include constructor logic and manage payload types. Enhanced `OrchardCoreFeature` and `WebhooksFeature` with alias definitions for variable types.
* Add helper for webhook activity type names and refactor code to use it
Introduce `WebhookActivityTypeNameHelper` for consistent generation of webhook activity type names. Refactor relevant classes to utilize this helper, simplifying and standardizing the codebase. Adjust other minor settings, such as editor config line length and dependency configurations.
* Refactor and introduce Orchard core integration
Replace `ContentItemPublished` with a new handlers and payload structure. This change includes the creation of various classes and handlers necessary to support the OrchardCore integration, define the content item events, and configure them via app settings. This refactor aids in standardizing the handling of content item publication events through newly introduced classes and configurations.
* Refactor stimulus class name for content publication
Renamed `WebhookEventReceivedStimulus` to `ContentItemPublishedStimulus` to better reflect its purpose in handling content item publication events. Updated all references and imports accordingly to maintain consistency in the codebase.
* Refactor webhook payload handling
Switched from using only `ContentItemPublishedPayload` to incorporating both `WebhookEvent` and `ContentItemPublishedPayload` in the input dictionary. This change ensures more comprehensive data handling for webhook events.
* Add new dependency and correct project reference path
Included Elsa.Webhooks.ActivityProviders in WebhooksFeature to support new webhook activities. Corrected the project reference path in Elsa.Samples.AspNet.OrchardCoreIntegration.csproj to reflect the accurate module directory structure.
* Rename and enhance webhook handling functionality
Renamed `InvokeOrchardActivities` to `InvokeOrchardWebhookEventActivities` for clarity. Also added an `ActivityProvider` to improve webhook event handling.
* Refactor: replace Workflow with WorkflowGraph in context
Updated references from Workflow to WorkflowGraph across various files to reflect the new context structure. This change improves the accuracy of context information and aligns with recent architectural updates.
* Add Semantic Kernel modules and features
Introduced core classes and services to support Semantic Kernel agents, their configuration, and execution within workflows. Added API endpoints for agent execution, integrated kernel configuration settings, and ensured necessary extensions for skill and plugin integration.
* Update ActivityDescriber and AgentActivityProvider
Default `inputAttribute` to null in `GetUIHint` and use it in `AgentActivityProvider`. This change ensures the `GetUIHint` method is called directly, improving code reusability and simplifying input handling.
* Add GraphQL client with token authentication
Introduced a DefaultGraphQlClient to send GraphQL queries, incorporated token-based authentication using AuthenticatingDelegatingHandler, and included support for refresh tokens through DefaultSecurityTokenService. Updated projects and configuration accordingly.
* Rename OrchardWebhooks to OrchardCore
Updated method and related variables to use 'OrchardCore' instead of 'OrchardWebhooks' for consistency and improved clarity. Also added activity attributes for SendGraphQLQuery to better describe its purpose.
* Refactor webhook handling and add ProofreaderResult model
Refactor activities and event handling to support multiple webhook event types beyond content publishing. Introduce new models under OrchardCoreIntegration for ProofreaderResult and ProofreadError, and update existing methods for more generic payload handling.
* Add support for API key configuration and reference
Implemented a new `ApiKeyConfig` class to manage API keys. Updated various components to utilize API key references, enhancing configuration flexibility. Added new options and settings to facilitate these changes.
* Add translation functionality and improve agent activity displays
This commit introduces a new `TranslationResult` model and updates the project configuration to support translation features. Additionally, it adds two new project references and modifies the `appsettings.json` to include translation skills. The `AgentActivityProvider` class now has improved display names for agent activities for better readability.
* Add FactCheck and Tagging functionality
Introduced new models: FactCheckResult, GenerateTagsResult, and IncorrectFact. Integrated JetBrains.Annotations package and extended variable types in workflow management. Updated prompt templates and appsettings for proofreader, fact-checker, and tagger functions.
* Enhance 'Tagger' skill in appsettings.json
Updated the 'GenerateTags' function in the 'Tagger' skill to define the number of tags to generate and to ensure JSON response format. Added a 'Number' input variable and the 'ResponseFormat' property for clarity and precision.
* Add support for patching content items via OrchardCore API
Implement DefaultRestApiClient and IRestApiClient for GET and PATCH requests to the content API. Introduce Activity for patching content items and update app settings to handle TitleResult in JSON format.
* Add variable type aliasing and improve serialization
Introduced extension methods to add variable type and alias in WorkflowManagementFeature. Enhanced JSON serialization in AgentActivity and DefaultRestApiClient. Cleaned up solution by removing old project references and updated appsettings.json for revised prompt templates.
* Remove Proofreader models and update AgentActivity properties
Removed obsolete `ProofreaderResult` and `ProofreadError` classes to streamline the codebase. Updated `AgentActivity` properties to be internal and JSON-ignored to enhance encapsulation and reduce serialization overhead.
* Add localization support for content items in OrchardCore
Implemented a new activity `LocalizeContentItem` to create localized versions of content items based on a provided culture code. Added a corresponding API client method and request model to facilitate this feature, along with necessary format adjustments in the appsettings file.
* Enhance SkillExecutor functionality and update config details
Enabled 'AllowDangerouslySetContent' in SkillExecutor for improved flexibility with input variables. Streamlined the Proofread function prompt template and adjusted various execution settings in `appsettings.json`. Removed explicit MaxTokens limits to allow more dynamic content handling.
* Add attribute to BackgroundActivityStimulus
Added the `ExcludeFromHash` attribute to the `JobId` property in `BackgroundActivityStimulus` class, fixing background activity resumption.
* Rename SemanticKernel to Agents module for better clarity
This commit renames the SemanticKernel module to Agents across the entire project, including all relevant file paths, namespaces, and configuration settings. Major refactors encompass changing file names, class names, and namespaces to reflect the new module name, removing the SemanticKernel integration in favor of the more general Agents framework.
* Update configuration section for SemanticKernel
Changed the configuration section name from "Agents" to "SemanticKernel" in Program.cs and appsettings.json. This ensures the options are correctly bound to the relevant settings in appsettings.json.
* Add new entities and projects for Elsa Agents
Introduced new entities: `AgentDefinition`, `ApiKeyDefinition`, `ModelDefinition`, `PluginDefinition`, `SkillDefinition`. Added new projects: `Elsa.Agents.Management` and `Elsa.Agents.Persistence`. Renamed `ConfigureAgents.cs` to `ConfigureKernel.cs` and updated relevant references.
* Add ActivityHandle to workflow execution endpoint
Extended the endpoint to accept ActivityHandle as part of the workflow execution request. This change improves the ability to specify and manage activity-specific workflows. Additionally, updated `appsettings.json` to remove "Article" from the list of content types.
* Add nullable checks and new skills with functions
Improve null safety in AgentActivity and AgentActivityProvider classes by adding nullable checks. Additionally, update `appsettings.json` with corrected skill names and introduce new skills including ArticleWriter and Author.
* Register Random type in JavaScript engine
Added the Random type registration to both JintJavaScriptEvaluator and CommonTypesDefinitionProvider. This allows JavaScript code to utilize the Random class for generating random numbers.
* Add CreateContentItem activity and API client method
Introduce a new CreateContentItem activity to create and optionally publish content items. Added a new REST API client method to handle content creation, including the necessary request model.
* Update API endpoints and variable name for consistency
Changed API endpoints in DefaultRestApiClient.cs to use 'content-items' instead of 'content' for consistency with the project's URL structure. Also updated a variable name in CreateContentItem.cs for clarity and readability.
* Fix potential NullReferenceException on timer disposal.
Ensure that the timer is not null before calling Dispose in both ScheduledRecurringTask and ScheduledCronTask. This prevents potential NullReferenceExceptions when the timer event is fired.
* Add Image Generator and integrate OpenAI text-to-image feature
Introduced `ImageGenerator` for generating images from text using OpenAI's text-to-image functionality. Updated `KernelFactory` to support `OpenAITextToImage` service, and modified configurations and services to utilize the new image generation capabilities.
* Add UploadMedia activity and WorkflowInstanceStorageDriver
This commit introduces a new UploadMedia activity for uploading files to a media library and a WorkflowInstanceStorageDriver for managing workflow state storage. Additionally, it includes changes in IRestApiClient interface, DefaultRestApiClient implementation, and minor logging enhancements in ScheduledSpecificInstantTask. Unnecessary project references were removed and project files were updated accordingly.
* Mark `WorkflowStorageDriver` as obsolete and update condition.
Added [Obsolete] attribute to `WorkflowStorageDriver` indicating it will be removed in future releases. Modified `BackgroundActivityInvoker` to also recognize `WorkflowInstanceStorageDriver` for output capture.
* Handle JsonNode deserialization in ObjectConverter
Add support for deserializing JsonNode types in ObjectConverter.cs. This ensures proper handling of JsonNode along with JsonElement and JsonObject, enhancing the overall deserialization process.
* Add ResolveTags activity to OrchardCore module
Created a new ResolveTags activity that interacts with the Orchard Core API to resolve or create tags. Implemented the ResolveTagsRequest model and updated the IRestApiClient and DefaultRestApiClient to support this new functionality.
* Refactor project structure and update configuration
Renamed the Elsa.Agents project to Elsa.Agents.Activities and updated all relevant namespaces and file paths. Added a new setting to the appsettings.json to include the language parameter for article generation.
* Update project metadata in multiple csproj files
Revised descriptions and package tags across several projects to ensure consistent terminology related to Agents. Removed unused folder references in Elsa.Agents.Core.csproj.
* Simplify JSON node deserialization logic
Removed redundant JsonObject checks and unified the handling of JsonNode instances. This refactoring streamlines the code and ensures consistency in the deserialization process.
* Refactor variable handling in ExpressionExecutionContextExtensions
The core change in this commit is the refactoring of the handling of variables within the ExpressionExecutionContextExtensions. The methods GetVariable, CreateVariable, and GetVariableBlock have been altered for clarity and simplified reducing redundant code. Unnecessary parameters and returns in method documentation have been removed, and overall code formatting has been improved to enhance readability.
* Simplify MemoryRegister creation in Workflow.cs
The creation of the MemoryRegister object in the file Workflow.cs was simplified to one line. The previous method, which declared a new object then called the Declare method before returning, was removed.
* Map controller routes in server web program
Added a line of code in the Elsa.Server.Web program.cs file to map controller routes. This change ensures that HTTP requests are correctly directed to their corresponding controller actions.
* Update workflow state extraction logic
The logic in the WorkflowStateExtractor has been updated to retain the root Workflow activity context even if it's completed. This change is necessary to keep workflow-level variables accessible.
* Remove RequiresUnreferencedCode attribute from ConvertTo method
The RequiresUnreferencedCode attribute was removed from the ConvertTo method in the ObjectConverter class.
* Remove unused services and rename test file
Unused services in the AutoUpdateTests.cs class were removed, reducing clutter and improving code readability. Additionally, the DeleteWorkflow_Clustered.cs test file has been renamed to DeleteWorkflowClustered.cs for better naming consistency.
* Add CountdownStep activity and CountdownWorkflow for testing
This commit introduces new component tests for simulations involving counters. It includes a new CountdownStep activity that decrements a counter variable, as well as a CountdownWorkflow which consists of a loop based on the aforementioned activity. It also involves a CountdownWorkflowTests class for testing counter persistence across workflow runs.
* Remove unnecessary whitespace in CountdownWorkflowTests
This commit eliminates the superfluous whitespace in the CountdownWorkflowTests.cs file. It maintains the proper formatting and ensures code consistency across the test component.
* Refactor CountdownWorkflowTests constructor
Simplified the constructor of the CountdownWorkflowTests class. The changes remove the unnecessary constructor body and pass the 'app' object directly to the base AppComponentTest class, enhancing the code's readability and maintainability.
* Add application roles and configure them in MassTransit
A new enum ApplicationRole has been added for distinguishing among different roles (Hybrid, Api, Worker) an application can take. In the configuration of MassTransit, it is now possible to disable the consumers based on application role, which can help optimize the usage of resources and increase application efficiency.
* Update Program.cs
Switch to Memory broker
* Update Program.cs
Simplify DisableConsumers assignment.
* Update ApplicationRole.cs
Rename Hybrid to Default.
* Update appsettings.json
* Refactor serializer options usage and enhance caching in workflow serialization
This update refactors multiple classes dealing with JSON serialization. The usage of serializer options now includes a caching mechanism to avoid unnecessary recomputation. 'CreateOptions' method is replaced by a 'GetOptions' method that considers cached options. Classes are adjusted to clone options when necessary, ensuring a fresh and accurate context each time.
* Refactor serializer options in workflow serialization
This commit refactors how options are handled for JSON serializers in Elsa's workflow modules. JSON serializer options are now handled more efficiently, by directly using the provided options in `JsonIgnoreCompositeRootConverter` and setting up internal serializer options in `ObjectConverter`. Unnecessary methods related to the cloning of serializer options have been removed.
The update enriches the serializers with Unicode encoding to handle a wider range of characters. Classes such as ConfigurableSerializer, ObjectConverter, and JsonContentFactory have been modified to use JavaScriptEncoder with UnicodeRanges.All, supporting serialization and deserialization of all Unicode characters. Furthermore, any unreferenced code now carries a note for JSON serializer stating that it's incompatible with .NET's trimming feature.
* Improve Elsa workflow expression serialization
Added serialization support for expressions in Elsa workflows, enabling serialization and deserialization to maintain consistent types across sessions. Updated relevant test cases for validation.
* Remove PR workflow from GitHub actions
The PR workflow has been removed from GitHub actions.
This update adds new keys to the default background activity invoker for task completion and bookmarks. It also modifies handling of dispatched workflow instances in BulkDispatchWorkflows activity. It further updates the BackgroundActivityInvokerMiddleware to capture and remove additional task details from the workflow execution context. Refactors are made to ObjectConverter and a set method for background completion is added to ActivityExecutionContextExtensions and BackgroundActivityExecutionContextExtensions.
The ObjectConverter file has been updated to support conversion of 'long' type. This is done by adding an additional conditional statement for checking the underlying source type for 'long', then returning the converted value.
* Incremental work
* Refactor code for JSON object handling and workflow context
This commit includes a significant rework of JSON object handling by ensuring produced JsonObject remains as JsonObject. Previously unimplemented customer and order workflow context providers have been removed. The test cases have been renamed and updated to confirm the new behavior is working as expected.
* Incremental work
* Enable control over when to include full compositie root
* Cleanup
* Update WorkflowDefinitionActivity
* Implement input as variables
* Delete unused class
* Remove less common types
* Rename ExpandoObject to JSON
* Implement variable scoping
* Remove parent/child relationship from MemoryRegister
* Add support for sending input to "trigger event" endpoint
* Add support for configuring input storage driver
* Remove unused namespace imports
* Auto-register activity types when running a workflow
* Fix missing variables from containers
* Add support for converting lists of things
* Add support for workflows returning a result
* Formatting
* Fix that While would complete twice
* Add convenience methods to access workflow input
* Schedule the workflow itself instead of just its root
* Add Output dictionary to workflow execution context
* Ad samples to demonstrate workflows returning results
* Incremental fixes
* Fix base assignment of async delegate block reference
* Reuse existing memory blocks
* Remove PlaybackStarted child activity
The PlaybackStarted property is unnecessary, since the PlayAudio activity already completes right after playback has started.
* Add GetCallStatus API method
* Prevent variables on composite activities to be overwritten during deserialization
* Remove unnecessary variable declarations
Activity variables will be declared automatically during activity invocation.
* Add XML comments
* Remove unused references arg
* Streamline variable identity assignment
* Fix composite early exit completion
* Move identity assignment to workflow definition service
* Incremental work on Telnyx integration
* Incremental port of Telnyx activities
* Fix polymorphic JSON serialization for webhook data
* Fix IsFirstPass logic
* Fix trigger base to prevent activity auto completion
* Temporarily disable persistent snapshotting provider for testing
* Fix namespaces
* Add method to register activities in bulk using marker type
* Fix Telnyx refit client setup
* Register all Telnyx activities by default
* Incremental work on webhook driven resumption and correlation
* Incremental work on post-bookmark signaling
* Fix bookmark resolution
* Include correlation ID with bookmark
* Fix Telnyx resumption input
* Replace bookmark persisted signal with handler
* Fix SpeakText completion
* Add flow outcomes to SpeakText activity
* Update GatherUsingSpeak and GatherUsingaudio
* Refactor "is first pass" concept
* Fix WebhookEvent activity
* Add HTTP absolute URL provider
* Formatting and small changes
* Various API enhancements
* Update job activities handler
Looks like somehow implicit global usings have been removed or disabled 🤔
* Implement background activity execution
* Checkbox UI improvements
* Implement Task configuration for asynchronous execution
* Make job queue hosted service process jobs in parallel
* Make job worker count configurable
