docs/DesignPatern/Behavioral/diagrams/air_traffic_control.svg

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class IMediator--><rect fill="#FEFECE" filter="url(#flghiz448qp97)" height="60.8047" id="IMediator" style="stroke: #A80036; stroke-width: 1.5;" width="325" x="111" y="8"/><ellipse cx="239.75" cy="24" fill="#B4A7E5" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M235.6719,19.7656 L235.6719,17.6094 L243.0625,17.6094 L243.0625,19.7656 L240.5938,19.7656 L240.5938,27.8438 L243.0625,27.8438 L243.0625,30 L235.6719,30 L235.6719,27.8438 L238.1406,27.8438 L238.1406,19.7656 L235.6719,19.7656 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="59" x="260.25" y="28.1543">IMediator</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="112" x2="435" y1="40" y2="40"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="112" x2="435" y1="48" y2="48"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="313" x="117" y="62.2104">void notify(Airplane* sender, const std::string&amp; event);</text><!--MD5=[48edc7ef120b8524ffba663ce8073647]
class ATCTower--><rect fill="#FEFECE" filter="url(#flghiz448qp97)" height="60.8047" id="ATCTower" style="stroke: #A80036; stroke-width: 1.5;" width="321" x="6" y="129"/><ellipse cx="132.25" cy="145" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M135.2188,150.6406 Q134.6406,150.9375 134,151.0781 Q133.3594,151.2344 132.6563,151.2344 Q130.1563,151.2344 128.8281,149.5938 Q127.5156,147.9375 127.5156,144.8125 Q127.5156,141.6875 128.8281,140.0313 Q130.1563,138.375 132.6563,138.375 Q133.3594,138.375 134,138.5313 Q134.6563,138.6875 135.2188,138.9844 L135.2188,141.7031 Q134.5938,141.125 134,140.8594 Q133.4063,140.5781 132.7813,140.5781 Q131.4375,140.5781 130.75,141.6563 Q130.0625,142.7188 130.0625,144.8125 Q130.0625,146.9063 130.75,147.9844 Q131.4375,149.0469 132.7813,149.0469 Q133.4063,149.0469 134,148.7813 Q134.5938,148.5 135.2188,147.9219 L135.2188,150.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="152.75" y="149.1543">ATCTower</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="7" x2="326" y1="161" y2="161"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="7" x2="326" y1="169" y2="169"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="309" x="12" y="183.2104">void notify(Airplane* sender, const std::string&amp; event)</text><!--MD5=[c93bce01e5525b79bdbb6e4ef958107e]
class Airplane--><rect fill="#FEFECE" filter="url(#flghiz448qp97)" height="112.0234" id="Airplane" style="stroke: #A80036; stroke-width: 1.5;" width="270" x="138.5" y="250"/><ellipse cx="243.75" cy="266" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M246.7188,271.6406 Q246.1406,271.9375 245.5,272.0781 Q244.8594,272.2344 244.1563,272.2344 Q241.6563,272.2344 240.3281,270.5938 Q239.0156,268.9375 239.0156,265.8125 Q239.0156,262.6875 240.3281,261.0313 Q241.6563,259.375 244.1563,259.375 Q244.8594,259.375 245.5,259.5313 Q246.1563,259.6875 246.7188,259.9844 L246.7188,262.7031 Q246.0938,262.125 245.5,261.8594 Q244.9063,261.5781 244.2813,261.5781 Q242.9375,261.5781 242.25,262.6563 Q241.5625,263.7188 241.5625,265.8125 Q241.5625,267.9063 242.25,268.9844 Q242.9375,270.0469 244.2813,270.0469 Q244.9063,270.0469 245.5,269.7813 Q246.0938,269.5 246.7188,268.9219 L246.7188,271.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="51" x="264.25" y="270.1543">Airplane</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="139.5" x2="407.5" y1="282" y2="282"/><rect fill="none" height="6" style="stroke: #C82930; stroke-width: 1.0;" width="6" x="146.5" y="290"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="69" x="158.5" y="296.2104">string name</text><rect fill="none" height="6" style="stroke: #C82930; stroke-width: 1.0;" width="6" x="146.5" y="302.8047"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="113" x="158.5" y="309.0151">IMediator* mediator</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="139.5" x2="407.5" y1="315.6094" y2="315.6094"/><ellipse cx="149.5" cy="326.6094" fill="#84BE84" rx="3" ry="3" style="stroke: #038048; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="244" x="158.5" y="329.8198">Airplane(string name, IMediator* mediator)</text><ellipse cx="149.5" cy="339.4141" fill="#84BE84" rx="3" ry="3" style="stroke: #038048; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="96" x="158.5" y="342.6245">requestLanding()</text><ellipse cx="149.5" cy="352.2188" fill="#84BE84" rx="3" ry="3" style="stroke: #038048; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="94" x="158.5" y="355.4292">requestTakeoff()</text><!--MD5=[0e76df78e4899817b55f05dda49fee75]
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reverse link ATCTower to Airplane--><path d="M196.25,200.68 C207.49,215.86 220.49,233.41 232.58,249.74 " fill="none" id="ATCTower&lt;-Airplane" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#FFFFFF" points="188.41,190.09,188.7704,197.2921,195.5571,199.7294,195.1967,192.5273,188.41,190.09" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[6ba5a32d0c53e545bc426392cf1a6499]
link Airplane to IMediator--><path d="M317.66,249.64 C339.63,215.23 358.76,169.91 344.5,129 C337.22,108.11 322.8,88.43 308.85,72.87 " fill="none" id="Airplane-&gt;IMediator" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="305.32,69.01,308.4251,78.3566,308.6876,72.7058,314.3384,72.9684,305.32,69.01" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[c7c29aa53eb89b4a66bb8309398502e6]
@startuml
interface IMediator {
    void notify(Airplane* sender, const std::string& event);
}

class ATCTower implements IMediator {
    void notify(Airplane* sender, const std::string& event)
}

class Airplane {
    - string name
    - IMediator* mediator
    + Airplane(string name, IMediator* mediator)
    + requestLanding()
    + requestTakeoff()
}

ATCTower o- - Airplane
Airplane - -> IMediator

@enduml

PlantUML version 1.2020.02(Sun Mar 01 11:22:07 CET 2020)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Java Version: 11.0.26+4-post-Ubuntu-1ubuntu122.04
Operating System: Linux
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>