97 lines
2.3 KiB
Plaintext
97 lines
2.3 KiB
Plaintext
@startuml
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' Licensed to the Apache Software Foundation (ASF) under one or more
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' contributor license agreements. See the NOTICE file distributed with
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' this work for additional information regarding copyright ownership.
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' The ASF licenses this file to You under the Apache License, Version 2.0
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' (the "License"); you may not use this file except in compliance with
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' the License. You may obtain a copy of the License at
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'
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' http://www.apache.org/licenses/LICENSE-2.0
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'
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' Unless required by applicable law or agreed to in writing, software
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' distributed under the License is distributed on an "AS IS" BASIS,
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' WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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' See the License for the specific language governing permissions and
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' limitations under the License.
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hide footbox
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skinparam style strictuml
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activate Acceptor
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participant NioEndpoint
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participant ServerSocket
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participant SocketChannel
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activate Poller
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participant Selector
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participant Executor
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activate Worker
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group Acceptor Loop
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Acceptor -> NioEndpoint ++: serverSocketAccept()
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NioEndpoint -> ServerSocket ++: accept()
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note right of ServerSocket
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This is where Tomcat
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waits for incoming
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connections
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end note
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ServerSocket -->> SocketChannel **:
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return
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return
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Acceptor -> NioEndpoint ++: setSocketOptions()
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NioEndpoint -> Poller ++: register()
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return
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return
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end
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group Poller Loop (simplified)
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Poller -> Poller ++: events()
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Poller -> SocketChannel ++: register(OP_READ)
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return
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return
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Poller -> Selector ++: select()
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return
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Poller -> Poller ++: processKey()
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Poller -> NioEndpoint ++: processSocket()
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NioEndpoint -> NioEndpoint ++: createSocketProcessor()
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NioEndpoint -->> SocketProcessor **:
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NioEndpoint -> Executor ++: execute()
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Executor -> Worker ++: run()
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return
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return
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return
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return
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return
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end
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Worker -> SocketProcessor ++: run()
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SocketProcessor -> SocketChannel ++: handshake()
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note right of SocketChannel
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TLS handshake
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end note
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return
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SocketProcessor -> ConnectionHandler ++: process()
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ConnectionHandler -> Protocol ++: createProcessor()
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Protocol -->> Processor **:
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activate Processor
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Processor -->> CoyoteRequest **:
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Processor -->> CoyoteResponse **:
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return
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return
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ConnectionHandler -> Processor ++: process()
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Processor -> Processor ++: service()
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note right of Processor
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More detail of this
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processing in the
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protocol specific
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diagrams
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end note
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return
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return
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return
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return
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@enduml |