diff options
Diffstat (limited to 'src/plugins/capabilities/core/include')
3 files changed, 225 insertions, 0 deletions
diff --git a/src/plugins/capabilities/core/include/MessageChannel.h b/src/plugins/capabilities/core/include/MessageChannel.h new file mode 100644 index 0000000..79e4eab --- /dev/null +++ b/src/plugins/capabilities/core/include/MessageChannel.h @@ -0,0 +1,68 @@ +/* + * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"). + * You may not use this file except in compliance with the License. + * A copy of the License is located at + * + * http://aws.amazon.com/apache2.0/ + * + * or in the "license" file accompanying this file. This file 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. + */ +#ifndef VSHL_CAPABILITIES_CORE_MESSAGECHANNEL_H_ +#define VSHL_CAPABILITIES_CORE_MESSAGECHANNEL_H_ + +#include <memory> + +#include "capabilities/core/include/PublisherForwarder.h" +#include "capabilities/core/include/SubscriberForwarder.h" +#include "interfaces/afb/IAFBApi.h" +#include "interfaces/capabilities/ICapability.h" +#include "interfaces/utilities/logging/ILogger.h" + +using namespace std; + +namespace vshlcapabilities { +namespace capabilities { +namespace core { +/* + * MessageChannel has one end as publisher forwarder and the other end + * as subscriber forwarder. + */ +class MessageChannel { +public: + // Create a MessageChannel. + static std::shared_ptr<MessageChannel> + create(shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::IAFBApi> afbApi, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Sends the message + bool publish(const string action, json_object* payload); + + // Subscribe + bool subscribe(vshlcapabilities::common::interfaces::IAFBRequest &request, + const string action); + + // Destructor + virtual ~MessageChannel() = default; + +private: + // Constructor + MessageChannel(shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::IAFBApi> afbApi, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Forwarders + shared_ptr<PublisherForwarder> mPublisherForwarder; + shared_ptr<SubscriberForwarder> mSubscriberForwarder; +}; + +} // namespace core +} // namespace capabilities +} // namespace vshl + +#endif // VSHL_CAPABILITIES_CORE_MESSAGECHANNEL_H_ diff --git a/src/plugins/capabilities/core/include/PublisherForwarder.h b/src/plugins/capabilities/core/include/PublisherForwarder.h new file mode 100644 index 0000000..01e9523 --- /dev/null +++ b/src/plugins/capabilities/core/include/PublisherForwarder.h @@ -0,0 +1,73 @@ +/* + * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"). + * You may not use this file except in compliance with the License. + * A copy of the License is located at + * + * http://aws.amazon.com/apache2.0/ + * + * or in the "license" file accompanying this file. This file 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. + */ +#ifndef VSHL_CAPABILITIES_CORE_PUBLISHERFORWARDER_H_ +#define VSHL_CAPABILITIES_CORE_PUBLISHERFORWARDER_H_ + +#include <memory> + +#include "capabilities/core/include/SubscriberForwarder.h" + +#include "interfaces/afb/IAFBApi.h" +#include "interfaces/capabilities/ICapability.h" +#include "interfaces/utilities/logging/ILogger.h" + +using namespace std; + +namespace vshlcapabilities { +namespace capabilities { +namespace core { +/* + * This class is responsible for forwarding the messages to be published + * to subscriber forwarder. Subscriber forwarder will deliver the messages + * as AFB Events to all the subscribed clients. + * There is one PublisherForwarder and one SubscriberForwarder per capability. + */ +class PublisherForwarder { +public: + // Create a PublisherForwarder. + static std::shared_ptr<PublisherForwarder> create( + shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Connect a subscriber forwarder to this publisher forwarder + void setSubscriberForwarder(shared_ptr<SubscriberForwarder> subscriberForwarder); + + // Forward message to the subscriber forwarder + bool forwardMessage(const string action, json_object* payload); + + // Destructor + ~PublisherForwarder(); + +private: + // Constructor + PublisherForwarder( + shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Subscriber forwarder connected to this publisher forwarder. + shared_ptr<SubscriberForwarder> mSubscriberForwarder; + + // Capability + shared_ptr<vshlcapabilities::common::interfaces::ICapability> mCapability; + + // Logger + shared_ptr<vshlcapabilities::common::interfaces::ILogger> mLogger; +}; + +} // namespace core +} // namespace capabilities +} // namespace vshl + +#endif // VSHL_CAPABILITIES_CORE_PUBLISHERFORWARDER_H_ diff --git a/src/plugins/capabilities/core/include/SubscriberForwarder.h b/src/plugins/capabilities/core/include/SubscriberForwarder.h new file mode 100644 index 0000000..ac469b3 --- /dev/null +++ b/src/plugins/capabilities/core/include/SubscriberForwarder.h @@ -0,0 +1,84 @@ +/* + * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"). + * You may not use this file except in compliance with the License. + * A copy of the License is located at + * + * http://aws.amazon.com/apache2.0/ + * + * or in the "license" file accompanying this file. This file 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. + */ +#ifndef VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_ +#define VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_ + +#include <memory> +#include <string> +#include <unordered_map> + +#include "interfaces/afb/IAFBApi.h" +#include "interfaces/capabilities/ICapability.h" +#include "interfaces/utilities/logging/ILogger.h" + +using namespace std; + +namespace vshlcapabilities { +namespace capabilities { +namespace core { +/* + * This class is responsible for forwarding the messages publishing + * to the actual clients using AFB. + */ +class SubscriberForwarder { +public: + // Create a SubscriberForwarder. + static std::shared_ptr<SubscriberForwarder> + create(shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::IAFBApi> afbApi, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Publish a capability message to the actual client. + bool forwardMessage(const string action, json_object* payload); + + // Subscribe + bool subscribe(vshlcapabilities::common::interfaces::IAFBRequest &request, + const string action); + + // Destructor + ~SubscriberForwarder(); + +private: + // Constructor + SubscriberForwarder( + shared_ptr<vshlcapabilities::common::interfaces::ILogger> logger, + shared_ptr<vshlcapabilities::common::interfaces::IAFBApi> afbApi, + shared_ptr<vshlcapabilities::common::interfaces::ICapability> capability); + + // Creates both upstream and downstream events + void createEvents(); + + // Binding API reference + shared_ptr<vshlcapabilities::common::interfaces::IAFBApi> mAfbApi; + + // Capability + shared_ptr<vshlcapabilities::common::interfaces::ICapability> mCapability; + + // Maps of capability action events to its corresponding Event object. + // Event name maps to Action Name + unordered_map<string, shared_ptr<common::interfaces::IAFBApi::IAFBEvent>> + mUpstreamEventsMap; + unordered_map<string, shared_ptr<common::interfaces::IAFBApi::IAFBEvent>> + mDownstreamEventsMap; + + // Logger + shared_ptr<vshlcapabilities::common::interfaces::ILogger> mLogger; +}; + +} // namespace core +} // namespace capabilities +} // namespace vshl + +#endif // VSHL_CAPABILITIES_CORE_SUBSCRIBERFORWARDER_H_ |