1 files changed, 57 insertions, 0 deletions
diff --git a/src/rgw/rgw_pubsub_push.h b/src/rgw/rgw_pubsub_push.h
new file mode 100644
index 000000000..6cb3db74b
--- /dev/null
+++ b/src/rgw/rgw_pubsub_push.h
@@ -0,0 +1,57 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+#pragma once
+
+#include <string>
+#include <memory>
+#include <stdexcept>
+#include "include/buffer_fwd.h"
+#include "include/common_fwd.h"
+#include "common/async/yield_context.h"
+
+// TODO the env should be used as a template parameter to differentiate the source that triggers the pushes
+class RGWDataSyncEnv;
+class RGWCoroutine;
+class RGWHTTPArgs;
+struct rgw_pubsub_event;
+struct rgw_pubsub_s3_event;
+
+// endpoint base class all endpoint  - types should derive from it
+class RGWPubSubEndpoint {
+public:
+  RGWPubSubEndpoint() = default;
+  // endpoint should not be copied
+  RGWPubSubEndpoint(const RGWPubSubEndpoint&) = delete;
+  const RGWPubSubEndpoint& operator=(const RGWPubSubEndpoint&) = delete;
+
+  typedef std::unique_ptr<RGWPubSubEndpoint> Ptr;
+
+  // factory method for the actual notification endpoint
+  // derived class specific arguments are passed in http args format
+  // may throw a configuration_error if creation fails
+  static Ptr create(const std::string& endpoint, const std::string& topic, const RGWHTTPArgs& args, CephContext *cct=nullptr);
+ 
+  // this method is used in order to send notification (Ceph specific) and wait for completion 
+  // in async manner via a coroutine when invoked in the data sync environment
+  virtual RGWCoroutine* send_to_completion_async(const rgw_pubsub_event& event, RGWDataSyncEnv* env) = 0;
+
+  // this method is used in order to send notification (S3 compliant) and wait for completion 
+  // in async manner via a coroutine when invoked in the data sync environment
+  virtual RGWCoroutine* send_to_completion_async(const rgw_pubsub_s3_event& event, RGWDataSyncEnv* env) = 0;
+
+  // this method is used in order to send notification (S3 compliant) and wait for completion 
+  // in async manner via a coroutine when invoked in the frontend environment
+  virtual int send_to_completion_async(CephContext* cct, const rgw_pubsub_s3_event& event, optional_yield y) = 0;
+
+  // present as string
+  virtual std::string to_str() const { return ""; }
+  
+  virtual ~RGWPubSubEndpoint() = default;
+  
+  // exception object for configuration error
+  struct configuration_error : public std::logic_error {
+    configuration_error(const std::string& what_arg) : 
+      std::logic_error("pubsub endpoint configuration error: " + what_arg) {}
+  };
+};
+