webapps/docs/architecture/startup/1_overview.plantuml

@startuml

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' contributor license agreements.  See the NOTICE file distributed with
' this work for additional information regarding copyright ownership.
' The ASF licenses this file to You under the Apache License, Version 2.0
' (the "License"); you may not use this file except in compliance with
' the License.  You may obtain a copy of the License at
'
'     http://www.apache.org/licenses/LICENSE-2.0
'
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hide footbox
skinparam style strictuml

activate Bootstrap
Bootstrap -> Bootstrap: initClassLoaders()

Bootstrap -->> Catalina ** : newInstance()

Bootstrap -> Catalina ++: setParentClassLoader()
|||
return

Bootstrap -> Catalina ++: start()

Catalina -> Catalina ++: load()

Catalina -> Catalina: initNaming()

Catalina -> Catalina ++: parseServerXml()

Catalina -->> Digester ** :
note right of Digester
  The digester creates all
  of the objects defined in
  //server.xml// but only the
  Server is shown here for
  simplicity
end note

Catalina -> Digester ++: parse()

Digester -->> Server ** :

return

return

|||
Catalina -> Catalina: initStream()

group More detail in diagram 2
Catalina -> Server ++: init()
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return
end

return

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group More detail in diagram 3
Catalina -> Server ++: start()
|||
return
end

|||
Catalina -> Catalina ++: await()
note right of Catalina
  This is where Tomcat spends
  time serving requests
end note
return

|||
Catalina -> Catalina ++: stop()

Catalina -> Server ++: stop()
|||
return

Catalina -> Server ++: destroy()
|||
return

return

return

deactivate Bootstrap
@enduml