{"action":"created","comment":{"url":"https://api.github.com/repos/netty/netty/pulls/comments/28647119","id":28647119,"diff_hunk":"@@ -50,29 +50,35 @@ public DefaultHttp2RemoteFlowController(Http2Connection connection) {\n         this.connection = checkNotNull(connection, \"connection\");\n \n         // Add a flow state for the connection.\n-        connection.connectionStream().setProperty(FlowState.class,\n-                new FlowState(connection.connectionStream(), initialWindowSize));\n+        connection.connectionStream().remoteFlowState(\n+                new DefaultFlowState(new ReducedFlowState(connection.connectionStream()), initialWindowSize));\n \n         // Register for notification of new streams.\n         connection.addListener(new Http2ConnectionAdapter() {\n-            @Override\n             public void onStreamAdded(Http2Stream stream) {\n-                // Just add a new flow state to the stream.\n-                stream.setProperty(FlowState.class, new FlowState(stream, 0));\n+                // TODO: (scottmitch): we used to have a create and open...but now they are separate.\n+                // If we knew the stream state was open we could directly create a DefaultFlowState here.","path":"codec-http2/src/main/java/io/netty/handler/codec/http2/DefaultHttp2RemoteFlowController.java","position":26,"original_position":26,"commit_id":"89aa351a50fd1660df01794ea6eece2479aa3fb2","original_commit_id":"89aa351a50fd1660df01794ea6eece2479aa3fb2","user":{"login":"nmittler","id":6493296,"avatar_url":"https://avatars.githubusercontent.com/u/6493296?v=3","gravatar_id":"","url":"https://api.github.com/users/nmittler","html_url":"https://github.com/nmittler","followers_url":"https://api.github.com/users/nmittler/followers","following_url":"https://api.github.com/users/nmittler/following{/other_user}","gists_url":"https://api.github.com/users/nmittler/gists{/gist_id}","starred_url":"https://api.github.com/users/nmittler/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nmittler/subscriptions","organizations_url":"https://api.github.com/users/nmittler/orgs","repos_url":"https://api.github.com/users/nmittler/repos","events_url":"https://api.github.com/users/nmittler/events{/privacy}","received_events_url":"https://api.github.com/users/nmittler/received_events","type":"User","site_admin":false},"body":"@Scottmitch Isn't the `open` event `onStreamActive`?","created_at":"2015-04-18T20:23:13Z","updated_at":"2015-04-18T20:23:13Z","html_url":"https://github.com/netty/netty/pull/3616#discussion_r28647119","pull_request_url":"https://api.github.com/repos/netty/netty/pulls/3616","_links":{"self":{"href":"https://api.github.com/repos/netty/netty/pulls/comments/28647119"},"html":{"href":"https://github.com/netty/netty/pull/3616#discussion_r28647119"},"pull_request":{"href":"https://api.github.com/repos/netty/netty/pulls/3616"}}},"pull_request":{"url":"https://api.github.com/repos/netty/netty/pulls/3616","id":33091368,"html_url":"https://github.com/netty/netty/pull/3616","diff_url":"https://github.com/netty/netty/pull/3616.diff","patch_url":"https://github.com/netty/netty/pull/3616.patch","issue_url":"https://api.github.com/repos/netty/netty/issues/3616","number":3616,"state":"open","locked":false,"title":"HTTP/2 Flow Controller interface and required memory reduction","user":{"login":"Scottmitch","id":7562868,"avatar_url":"https://avatars.githubusercontent.com/u/7562868?v=3","gravatar_id":"","url":"https://api.github.com/users/Scottmitch","html_url":"https://github.com/Scottmitch","followers_url":"https://api.github.com/users/Scottmitch/followers","following_url":"https://api.github.com/users/Scottmitch/following{/other_user}","gists_url":"https://api.github.com/users/Scottmitch/gists{/gist_id}","starred_url":"https://api.github.com/users/Scottmitch/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Scottmitch/subscriptions","organizations_url":"https://api.github.com/users/Scottmitch/orgs","repos_url":"https://api.github.com/users/Scottmitch/repos","events_url":"https://api.github.com/users/Scottmitch/events{/privacy}","received_events_url":"https://api.github.com/users/Scottmitch/received_events","type":"User","site_admin":false},"body":"Motivation:\r\nFlow control is a required part of the HTTP/2 specification but it is currently structured more like an optional item. It must be accessed through the property map which is time consuming and does not represent its required nature.\r\n\r\nModifications:\r\n1. Create a read only public interface for LocalFlowState and RemoteFlowState.\r\n2. Add a LocalFlowState localFlowState(); and RemoteFlowState remoteFlowState(); to Http2Stream.\r\n3. Have Http2LocalFlowController and Http2RemoteFlowController expose factory methods which can generate new LocalFlowState and RemoteFlowState objects.\r\n4. The Http2Connection interface documents that it is responsible for using these factories when a stream becomes added and before listeners are notified.\r\n\r\nResult:\r\nFlow control is not part of the Http2Stream interface. This clarifies its responsibility and logical relationship to other interfaces. 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