images/diagrams/containers/analytics_system.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentStyleType="text/css" height="987px" preserveAspectRatio="none" style="width:839px;height:987px;background:#FFFFFF;" version="1.1" viewBox="0 0 839 987" width="839px" zoomAndPan="magnify"><defs/><g><!--MD5=[5eb6716fe13a32072429f0fd2741f475]
cluster analyticsSystem--><g id="cluster_analyticsSystem"><rect fill="none" height="554" rx="2.5" ry="2.5" style="stroke:#444444;stroke-width:1.0;stroke-dasharray:7.0,7.0;" width="503" x="7" y="427"/><text fill="#444444" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="150" x="183.5" y="463.8516">Analytics system</text><text fill="#444444" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="62" x="227.5" y="478.7637">[System]</text></g><!--MD5=[4cb346d75b5846921804735bca61c641]
entity analyticsService--><g id="elem_analyticsService"><rect fill="#438DD5" height="180.6406" rx="2.5" ry="2.5" style="stroke:#3C7FC0;stroke-width:0.5;" width="218" x="237" y="498"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="137" x="277.5" y="519.1387">«webApp»«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="150" x="271" y="536.8203">Analytics Service</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="27" x="332.5" y="551.7324">[Go]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="344" y="567.5576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="184" x="252" y="583.8545">Handles requests by clicks</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="181" x="253.5" y="600.1514">information and each hour</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="128" x="280" y="616.4482">stores aggregated</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="155" x="266.5" y="632.7451">information about click</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="194" x="247" y="649.042">numbers of each tiny URL to</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="42" x="325" y="665.3389">cache</text></g><!--MD5=[652c25f4d53d8efde886ea2754b6954a]
entity analyticsDatabase--><g id="elem_analyticsDatabase"><path d="M23,842.5 C23,832.5 131,832.5 131,832.5 C131,832.5 239,832.5 239,842.5 L239,946.9531 C239,956.9531 131,956.9531 131,956.9531 C131,956.9531 23,956.9531 23,946.9531 L23,842.5 " fill="#438DD5" style="stroke:#3C7FC0;stroke-width:0.5;"/><path d="M23,842.5 C23,852.5 131,852.5 131,852.5 C131,852.5 239,852.5 239,842.5 " fill="none" style="stroke:#3C7FC0;stroke-width:0.5;"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="104" x="79" y="867.6387">«db»«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="166" x="48" y="885.3203">Analytics database</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="78" x="92" y="900.2324">[ClickHouse]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="129" y="916.0576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="189" x="34.5" y="932.3545">Stores analytics information</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="196" x="33" y="948.6514">about clicks of each tiny URL</text></g><!--MD5=[51df577b70f9a5100c990f8e761571a6]
entity analyticsCache--><g id="elem_analyticsCache"><path d="M274,834 C274,824 384,824 384,824 C384,824 494,824 494,834 L494,954.75 C494,964.75 384,964.75 384,964.75 C384,964.75 274,964.75 274,954.75 L274,834 " fill="#438DD5" style="stroke:#3C7FC0;stroke-width:0.5;"/><path d="M274,834 C274,844 384,844 384,844 C384,844 494,844 494,834 " fill="none" style="stroke:#3C7FC0;stroke-width:0.5;"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="104" x="332" y="859.1387">«db»«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="137" x="315.5" y="876.8203">Analytics cache</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="70" x="349" y="891.7324">[Tarantool]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="382" y="907.5576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="129" x="317.5" y="923.8545">Stores aggregated</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="196" x="284" y="940.1514">information about number of</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="155" x="306.5" y="956.4482">clicks by each tiny URL</text></g><!--MD5=[8fc3522a43f8c7199df5e09e5bb0188e]
entity user--><g id="elem_user"><rect fill="#08427B" height="100.5938" rx="2.5" ry="2.5" style="stroke:#073B6F;stroke-width:0.5;" width="78" x="307" y="7"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="58" x="317" y="28.1387">«person»</text><image height="48" width="48" x="322" xlink:href="data:image/png;base64,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" y="30.9688"/><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="41" x="325.5" y="93.8203">User</text></g><!--MD5=[3697f15ab8f87c202d2c95dbe0476867]
entity loadBalancer--><g id="elem_loadBalancer"><rect fill="#438DD5" height="99.1563" rx="2.5" ry="2.5" style="stroke:#3C7FC0;stroke-width:0.5;" width="144" x="274" y="225"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="74" x="309" y="246.1387">«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="124" x="284" y="263.8203">Load Balancer</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="44" x="324" y="278.7324">[Nginx]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="344" y="294.5576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="119" x="286.5" y="310.8545">Uses round robin</text></g><!--MD5=[3401ea4b568088ee2885729e55a4da0f]
entity messageQueue--><g id="elem_messageQueue"><path d="M570.5,842 L769.5,842 C774.5,842 774.5,894.7266 774.5,894.7266 C774.5,894.7266 774.5,947.4531 769.5,947.4531 L570.5,947.4531 C565.5,947.4531 565.5,894.7266 565.5,894.7266 C565.5,894.7266 565.5,842 570.5,842 " fill="#438DD5" style="stroke:#3C7FC0;stroke-width:0.5;"/><path d="M769.5,842 C764.5,842 764.5,894.7266 764.5,894.7266 C764.5,947.4531 769.5,947.4531 769.5,947.4531 " fill="none" style="stroke:#3C7FC0;stroke-width:0.5;"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="74" x="628" y="858.1387">«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="121" x="604.5" y="875.8203">Events queue</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="44" x="643" y="890.7324">[Kafka]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="663" y="906.5576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="185" x="570.5" y="922.8545">Message queue for events</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="83" x="623.5" y="939.1514">by tiny URLs</text></g><!--MD5=[c9143b68d5b929d45bd1b4e7a9e76df6]
entity coreSystem--><g id="elem_coreSystem"><rect fill="#438DD5" height="115.4531" rx="2.5" ry="2.5" style="stroke:#3C7FC0;stroke-width:0.5;" width="208" x="602" y="531"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="74" x="669" y="552.1387">«container»</text><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="113" x="649.5" y="569.8203">Core system</text><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="113" x="649.5" y="584.7324">[Software system]</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="4" x="704" y="600.5576"> </text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="161" x="623.5" y="616.8545">Stores different analytic</text><text fill="#FFFFFF" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="188" x="612" y="633.1514">information about tiny URLs</text></g><!--MD5=[0accf94acb3c75215f316b2a9433c8ed]
link user to loadBalancer--><g id="link_user_loadBalancer"><path d="M346,108.1 C346,140.45 346,182.78 346,216.51 " fill="none" id="user-to-loadBalancer" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="346,224.9,349,216.9,343,216.9,346,224.9" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="75" x="376.5" y="150.1387">Gets clicks</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="134" x="347" y="164.1074">information by tiny</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="35" x="398.5" y="178.0762">URLs</text><text fill="#666666" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="41" x="395.5" y="192.0449">[REST]</text></g><!--MD5=[d2c5d34969edaa5bba53be756481e760]
link loadBalancer to analyticsService--><g id="link_loadBalancer_analyticsService"><path d="M346,324.25 C346,368.44 346,434.87 346,489.95 " fill="none" id="loadBalancer-to-analyticsService" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="346,497.99,349,489.99,343,489.99,346,497.99" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="75" x="376.5" y="366.1387">Gets clicks</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="134" x="347" y="380.1074">information by tiny</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="35" x="398.5" y="394.0762">URLs</text><text fill="#666666" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="41" x="395.5" y="408.0449">[REST]</text></g><!--MD5=[86ba7f9ddfb22ae60f0d80af0e2f35f5]
link coreSystem to messageQueue--><g id="link_coreSystem_messageQueue"><path d="M699.27,646.32 C692.96,699.61 683.56,779.02 677.12,833.36 " fill="none" id="coreSystem-to-messageQueue" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="676.16,841.52,680.0686,833.9225,674.1092,833.2258,676.16,841.52" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="103" x="708" y="749.1387">Publishes click</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="139" x="692" y="763.1074">events by tiny URLs</text></g><!--MD5=[87fba9393b9a8351bc492a769143d5e2]
link analyticsService to messageQueue--><g id="link_analyticsService_messageQueue"><path d="M455.3,675.82 C466.23,686.46 476.7,697.61 486,709 C513.3,742.44 504.41,761.66 533,794 C546.66,809.46 563.13,823.92 579.84,836.77 " fill="none" id="analyticsService-to-messageQueue" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="586.5,841.8,581.9283,834.582,578.3095,839.3678,586.5,841.8" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="134" x="534.5" y="749.1387">Subscribes on click</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="139" x="534" y="763.1074">events by tiny URLs</text></g><!--MD5=[b64f5ac5d4a4915f45f4af530e19dba2]
link analyticsService to analyticsDatabase--><g id="link_analyticsService_analyticsDatabase"><path d="M236.58,649.57 C214.13,666.25 192.62,686.16 177,709 C153.87,742.82 142.36,787.21 136.63,823.98 " fill="none" id="analyticsService-to-analyticsDatabase" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="135.43,832.18,139.5558,824.6982,133.6189,823.8301,135.43,832.18" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="133" x="184" y="735.1387">Stores click events</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="148" x="178.5" y="749.1074">and also aggregates</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="149" x="178" y="763.0762">information about all</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="129" x="188" y="777.0449">clicks by tiny URLs</text></g><!--MD5=[a768576205a74f1fad975508e7be1990]
link analyticsService to analyticsCache--><g id="link_analyticsService_analyticsCache"><path d="M336.62,679.06 C334.94,715.09 335.64,756.82 343,794 C344.44,801.27 346.42,808.67 348.73,816 " fill="none" id="analyticsService-to-analyticsCache" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="351.36,823.9,351.6762,815.3619,345.9841,817.2592,351.36,823.9" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="133" x="344" y="721.1387">Gets clicks number</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="119" x="351" y="735.1074">of each tiny URL,</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="80" x="370.5" y="749.0762">also stores</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="128" x="346.5" y="763.0449">information about</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="114" x="353.5" y="777.0137">clicks number of</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="96" x="364.5" y="790.9824">each tiny URL</text></g><!--MD5=[46ad14e606e852d8d772f82d17caa521]
@startuml
!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml

Person(user, "User")
Container(loadBalancer, "Load Balancer", "Nginx", "Uses round robin")
ContainerQueue(messageQueue, "Events queue", "Kafka", "Message queue for events by tiny URLs")
Container(coreSystem, "Core system", "Software system", "Stores different analytic information about tiny URLs")

System_Boundary(analyticsSystem, "Analytics system") {
    Container(analyticsService, "Analytics Service", "Go", "Handles requests by clicks information and each hour stores aggregated information about click numbers of each tiny URL to cache", $tags="webApp")
    ContainerDb(analyticsDatabase, "Analytics database", "ClickHouse", "Stores analytics information about clicks of each tiny URL",  $tags="db")
    ContainerDb(analyticsCache, "Analytics cache", "Tarantool", "Stores aggregated information about number of clicks by each tiny URL",  $tags="db")
}

Rel(user, loadBalancer, "Gets clicks information by tiny URLs", "REST")
Rel(loadBalancer, analyticsService, "Gets clicks information by tiny URLs", "REST")

Rel(coreSystem, messageQueue, "Publishes click events by tiny URLs")
Rel(analyticsService, messageQueue, "Subscribes on click events by tiny URLs")
Rel(analyticsService, analyticsDatabase, "Stores click events and also aggregates information about all clicks by tiny URLs")
Rel(analyticsService, analyticsCache, "Gets clicks number of each tiny URL, also stores information about clicks number of each tiny URL")
@enduml

@startuml






















skinparam defaultTextAlignment center

skinparam wrapWidth 200
skinparam maxMessageSize 150

skinparam LegendFontColor #FFFFFF
skinparam LegendBackgroundColor transparent
skinparam LegendBorderColor transparent

skinparam rectangle<<legendArea>> {
    backgroundcolor transparent
    bordercolor transparent
}

skinparam rectangle {
    StereotypeFontSize 12
}

skinparam database {
    StereotypeFontSize 12
}

skinparam queue {
    StereotypeFontSize 12
}

skinparam arrow {
    Color #666666
    FontColor #666666
    FontSize 12
}

skinparam person {
    StereotypeFontSize 12
}

skinparam actor {
    StereotypeFontSize 12
    style awesome
}

skinparam rectangle<<boundary>> {
    StereotypeFontSize 6
    StereotypeFontColor transparent
    BorderStyle dashed
}

skinparam package {
    StereotypeFontSize 6
    StereotypeFontColor transparent
    FontStyle plain
    BackgroundColor transparent
}

























































































skinparam rectangle<<boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam database<<boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam queue<<boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam person<<boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam actor<<boundary>> {
    FontColor transparent
    BackgroundColor transparent
    BorderColor #444444
}
skinparam package<<boundary>>StereotypeFontColor transparent
skinparam rectangle<<boundary>>StereotypeFontColor transparent

skinparam rectangle<<enterprise_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam database<<enterprise_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam queue<<enterprise_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam person<<enterprise_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam actor<<enterprise_boundary>> {
    FontColor transparent
    BackgroundColor transparent
    BorderColor #444444
}
skinparam package<<enterprise_boundary>>StereotypeFontColor transparent
skinparam rectangle<<enterprise_boundary>>StereotypeFontColor transparent


skinparam rectangle<<system_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam database<<system_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam queue<<system_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam person<<system_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam actor<<system_boundary>> {
    FontColor transparent
    BackgroundColor transparent
    BorderColor #444444
}
skinparam package<<system_boundary>>StereotypeFontColor transparent
skinparam rectangle<<system_boundary>>StereotypeFontColor transparent


skinparam rectangle<<container_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam database<<container_boundary>> {
    FontColor #444444
    BackgroundColor transparent
    BorderColor #444444
}
skinparam queue<<container_boundary>> {
    FontColor #444444
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skinparam person<<person>> {
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skinparam actor<<person>> {
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skinparam person<<external_person>> {
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}



























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skinparam rectangle<<container_boundary>> {
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skinparam queue<<container_boundary>> {
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skinparam person<<container_boundary>> {
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skinparam actor<<container_boundary>> {
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skinparam package<<container_boundary>>StereotypeFontColor transparent
skinparam rectangle<<container_boundary>>StereotypeFontColor transparent


















rectangle "<$person>\n== User" <<person>> as user 
rectangle "== Load Balancer\n//<size:12>[Nginx]</size>//\n\nUses round robin" <<container>> as loadBalancer 
queue "== Events queue\n//<size:12>[Kafka]</size>//\n\nMessage queue for events by tiny URLs" <<container>> as messageQueue 
rectangle "== Core system\n//<size:12>[Software system]</size>//\n\nStores different analytic information about tiny URLs" <<container>> as coreSystem 

  rectangle "== Analytics system\n<size:12>[System]</size>" <<system_boundary>><<boundary>> as analyticsSystem  {
    rectangle "== Analytics Service\n//<size:12>[Go]</size>//\n\nHandles requests by clicks information and each hour stores aggregated information about click numbers of each tiny URL to cache" <<webApp>><<container>> as analyticsService 
    database "== Analytics database\n//<size:12>[ClickHouse]</size>//\n\nStores analytics information about clicks of each tiny URL" <<db>><<container>> as analyticsDatabase 
    database "== Analytics cache\n//<size:12>[Tarantool]</size>//\n\nStores aggregated information about number of clicks by each tiny URL" <<db>><<container>> as analyticsCache 
}

user - ->> loadBalancer : **Gets clicks information by tiny URLs**\n//<size:12>[REST]</size>//
loadBalancer - ->> analyticsService : **Gets clicks information by tiny URLs**\n//<size:12>[REST]</size>//

coreSystem - ->> messageQueue : **Publishes click events by tiny URLs**
analyticsService - ->> messageQueue : **Subscribes on click events by tiny URLs**
analyticsService - ->> analyticsDatabase : **Stores click events and also aggregates information about all clicks by tiny URLs**
analyticsService - ->> analyticsCache : **Gets clicks number of each tiny URL, also stores information about clicks number of each tiny URL**
@enduml

PlantUML version 1.2022.7(Mon Aug 22 17:01:30 UTC 2022)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Default Encoding: UTF-8
Language: en
Country: null
--></g></svg>