{"id":2024,"date":"2026-07-28T06:23:23","date_gmt":"2026-07-28T06:23:23","guid":{"rendered":"https:\/\/www.vpascode.com\/ru\/docs\/uncategorized\/scala-visualizer-guide\/"},"modified":"2026-07-28T06:23:23","modified_gmt":"2026-07-28T06:23:23","slug":"scala-visualizer-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/ru\/docs\/vpascode-docs\/scala-visualizer-guide\/","title":{"rendered":"Scala"},"content":{"rendered":"

\u041f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0438\u043b\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 Scala \u043d\u0430\u0432\u0438\u0433\u0430\u0446\u0438\u044f \u043f\u043e \u0430\u043b\u0433\u0435\u0431\u0440\u0430\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0442\u0438\u043f\u0430\u043c \u0434\u0430\u043d\u043d\u044b\u0445, \u043c\u0438\u043a\u0441\u0438\u043d\u0430\u043c \u0442\u0440\u0435\u0439\u0442\u043e\u0432 \u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c \u0430\u043a\u0442\u043e\u0440\u043e\u0432 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u043b\u043e\u0436\u043d\u043e\u0439. The Scala Visualizer<\/strong> \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u0443\u0435\u0442 \u043a\u043b\u0430\u0441\u0441\u044b Scala, case-\u043a\u043b\u0430\u0441\u0441\u044b, sealed-\u0442\u0440\u0435\u0439\u0442\u044b, \u043e\u0431\u044a\u0435\u043a\u0442\u044b \u0438 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0438 \u0442\u0440\u0435\u0439\u0442\u043e\u0432 \u0432 \u0447\u0435\u0442\u043a\u0438\u0435 \u0438\u043d\u0442\u0435\u0440\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0435 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u044b \u043a\u043b\u0430\u0441\u0441\u043e\u0432. \u041f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0439 \u0442\u0438\u043f\u043e\u0432, \u043a\u043e\u043d\u0442\u0440\u0430\u043a\u0442\u043e\u0432 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0438 \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0448\u0430\u0431\u043b\u043e\u043d\u043e\u0432 (sealed trait<\/code>), \u043c\u0438\u043a\u0441\u0438\u043d\u043e\u0432 (with<\/code>), \u0438 \u043e\u0434\u0438\u043d\u043e\u0447\u043d\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 Scala \u0438 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u043c\u043e\u0433\u0443\u0442 \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0438 \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u043d\u0430 \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u0437\u0433\u043b\u044f\u0434.<\/p>\n

\u041c\u0435\u0445\u0430\u043d\u0438\u043a\u0430 \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 Scala<\/h2>\n

\u0412 VPasCode \u043e\u0442\u0440\u0438\u0441\u043e\u0432\u043a\u0430 Scala \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u0442 class<\/code>, case class<\/code>, trait<\/code>, sealed trait<\/code>, \u0438 object<\/code> \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0432 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043a\u0430\u0440\u0442\u043e\u0447\u043a\u0438 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c \u0432 \u0441\u0442\u0438\u043b\u0435 UML. \u0422\u0440\u0435\u0439\u0442\u044b \u0438 case-\u043a\u043b\u0430\u0441\u0441\u044b \u0432\u044b\u0441\u0442\u0443\u043f\u0430\u044e\u0442 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0443\u0437\u043b\u043e\u0432 \u0434\u043e\u043c\u0435\u043d\u0430, \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043e\u043b\u044f \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u044e\u0442\u0441\u044f \u043a\u0430\u043a \u0442\u0438\u043f\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0430\u0442\u0440\u0438\u0431\u0443\u0442\u044b, \u0430 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0441\u043b\u043e\u0432\u0430 \u043d\u0430\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u043b\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0442\u0440\u0435\u0439\u0442\u043e\u0432 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0443\u044e\u0442 \u0447\u0435\u0442\u043a\u0438\u0435 \u043b\u0438\u043d\u0438\u0438 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0445 \u0441\u0432\u044f\u0437\u0435\u0439 \u043c\u0435\u0436\u0434\u0443 \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u044b\u043c\u0438 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044f\u043c\u0438.<\/p>\n

1. \u041e\u0441\u043d\u043e\u0432\u043d\u0430\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430<\/h3>\n

\u0414\u043b\u044f \u0432\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u043c\u043e\u0434\u0435\u043b\u0438 Scala \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435 sealed-\u0442\u0440\u0435\u0439\u0442\u044b \u0434\u043b\u044f \u0437\u0430\u043c\u043a\u043d\u0443\u0442\u044b\u0445 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0439 \u0442\u0438\u043f\u043e\u0432 \u0432\u043c\u0435\u0441\u0442\u0435 \u0441 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u043c\u0438 case-\u043a\u043b\u0430\u0441\u0441\u0430\u043c\u0438. \u041f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u0430\u043a\u0442\u043e\u0440\u043e\u0432 \u0438 \u043a\u0430\u043d\u0430\u043b\u044b \u043a\u043e\u043c\u0430\u043d\u0434 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u0443\u044e\u0442 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0442\u0438\u043f\u044b \u0430\u043b\u0433\u0435\u0431\u0440\u0430\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 (ADT) \u0432 Scala:<\/p>\n

\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n
\n
\r\n
\r\n Scala<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit Scala in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
package com.example.actor\r\n\r\n\/\/ \u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u043a\u043e\u043d\u0442\u0440\u0430\u043a\u0442 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439\r\nsealed trait ActorCommand\r\n\r\n\/\/ \u041a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u043a\u043e\u043c\u0430\u043d\u0434\r\ncase class StartProcess(processId: String, timestamp: Long) extends ActorCommand\r\ncase class StopProcess(processId: String, reason: String) extends ActorCommand\r\ncase class QueryStatus(processId: String) extends ActorCommand\r\n\r\n\/\/ \u0418\u0435\u0440\u0430\u0440\u0445\u0438\u044f \u0442\u0438\u043f\u043e\u0432 \u043e\u0442\u0432\u0435\u0442\u043e\u0432 ADT\r\nsealed trait ActorResponse\r\ncase class ProcessStarted(processId: String) extends ActorResponse\r\ncase class ProcessFailed(processId: String, error: String) extends ActorResponse\r\ncase class StatusResult(processId: String, isRunning: Boolean) extends ActorResponse\r\n\r\n\/\/ \u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u0440\u0430\u0431\u043e\u0447\u0435\u0433\u043e \u0430\u043a\u0442\u043e\u0440\u0430\r\nclass WorkerActor(val workerId: String) {\r\n  private var currentTask: Option[String] = None\r\n\r\n  def handleCommand(cmd: ActorCommand): ActorResponse = cmd match {\r\n    case StartProcess(id, _) =>\r\n      currentTask = Some(id)\r\n      ProcessStarted(id)\r\n    case StopProcess(id, reason) =>\r\n      currentTask = None\r\n      StatusResult(id, isRunning = false)\r\n    case QueryStatus(id) =>\r\n      StatusResult(id, currentTask.contains(id))\r\n  }\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u0420\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u0438\u043a\u0438<\/h2>\n
\u0412\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 Scala \u043e\u0442\u043b\u0438\u0447\u043d\u043e \u0441\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0441 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435\u043c \u0447\u0438\u0441\u0442\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u043c\u043e\u0434\u0435\u043b\u0435\u0439, \u043d\u0435\u0438\u0437\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0445 \u0430\u0433\u0440\u0435\u0433\u0430\u0442\u043e\u0432 \u043a\u043e\u0440\u0437\u0438\u043d\u044b \u043f\u043e\u043a\u0443\u043f\u043e\u043a \u0438 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0439 \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u0432 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0439.<\/p>\n
1. \u0424\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u0430\u044f \u0434\u043e\u043c\u0435\u043d\u043d\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0439 \u043a\u043e\u043c\u043c\u0435\u0440\u0446\u0438\u0438<\/h3>\n
\u041e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u044f sealed-\u0442\u0440\u0435\u0439\u0442\u044b \u0434\u043b\u044f \u0442\u0438\u043f\u043e\u0432 \u043e\u043f\u043b\u0430\u0442\u044b, \u043d\u0435\u0438\u0437\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0435 case-\u043a\u043b\u0430\u0441\u0441\u044b \u0434\u043b\u044f \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u043a\u043e\u0440\u0437\u0438\u043d\u044b \u0438 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0435 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0438, VPasCode \u0447\u0435\u0442\u043a\u043e \u0440\u0430\u0437\u0431\u0438\u0432\u0430\u0435\u0442 \u0441\u043b\u043e\u0436\u043d\u0443\u044e \u0434\u043e\u043c\u0435\u043d\u043d\u0443\u044e \u043b\u043e\u0433\u0438\u043a\u0443 \u043d\u0430 \u0447\u0438\u0442\u0430\u0435\u043c\u044b\u0435 \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u044b\u0435 \u0434\u0435\u0440\u0435\u0432\u044c\u044f:<\/p>\n
\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n
\n            
\r\n                                
\r\n                    Scala<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
package com.example.ecommerce\r\n\r\nsealed trait PaymentMethod\r\ncase object CreditCard extends PaymentMethod\r\ncase object PayPal extends PaymentMethod\r\ncase class CryptoWallet(address: String) extends PaymentMethod\r\n\r\ncase class CartItem(sku: String, price: BigDecimal, quantity: Int) {\r\n  def total: BigDecimal = price * quantity\r\n}\r\n\r\ncase class Customer(customerId: String, email: String)\r\n\r\ncase class ShoppingCart(\r\n  cartId: String,\r\n  customer: Customer,\r\n  items: List[CartItem],\r\n  paymentMethod: PaymentMethod\r\n) {\r\n  def grandTotal: BigDecimal = items.map(_.total).sum\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432\u044b\u0445 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445<\/h2>\n
\u0412\u0438\u0437\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u043e\u0442\u043e\u043a\u043e\u0432, \u0447\u0435\u0440\u0442 \u0441\u043b\u0438\u0432\u043e\u0432 \u0438 \u0443\u0437\u043b\u043e\u0432 \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u044d\u0442\u0430\u043f\u043e\u0432 \u043f\u043e\u0442\u043e\u043a\u0430 \u043f\u043e\u043c\u043e\u0433\u0430\u0435\u0442 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430\u043c \u043f\u043e \u0434\u0430\u043d\u043d\u044b\u043c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c \u0447\u0435\u0442\u043a\u0443\u044e \u043c\u043e\u0434\u0443\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0432 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0437\u0430\u0434\u0430\u0447\u0430\u0445.<\/p>\n
1. \u041e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445<\/h3>\n
\u0413\u0440\u0443\u043f\u043f\u0438\u0440\u0443\u0439\u0442\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u043e\u0432 \u043f\u043e\u0442\u043e\u043a\u043e\u0432, \u0447\u0435\u0440\u0442\u044b \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u043e\u0432 \u0438 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0435 \u044d\u0442\u0430\u043f\u044b \u043f\u043e\u0442\u043e\u043a\u0430 \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u0442\u043e\u043f\u043e\u043b\u043e\u0433\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445:<\/p>\n
\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n
\n            
\r\n                                
\r\n                    Scala<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
package com.example.stream\r\n\r\ntrait StreamSource[T] {\r\n  def readNext(): Option[T]\r\n}\r\n\r\ntrait StreamSink[T] {\r\n  def write(element: T): Boolean\r\n}\r\n\r\ncase class LogEvent(eventId: String, level: String, payload: String)\r\n\r\nclass KafkaLogSource(val topic: String) extends StreamSource[LogEvent] {\r\n  override def readNext(): Option[LogEvent] = {\r\n    Some(LogEvent(\"evt-101\", \"INFO\", \"Payload received\"))\r\n  }\r\n}\r\n\r\nclass ElasticSink(val clusterUrl: String) extends StreamSink[LogEvent] {\r\n  override def write(element: LogEvent): Boolean = {\r\n    println(s\"\u0418\u043d\u0434\u0435\u043a\u0441\u0430\u0446\u0438\u044f \u0441\u043e\u0431\u044b\u0442\u0438\u044f ${element.eventId} \u0432 $clusterUrl\")\r\n    true\r\n  }\r\n}\r\n\r\nclass LogPipeline(val source: StreamSource[LogEvent], val sink: StreamSink[LogEvent]) {\r\n  def processNext(): Unit = {\r\n    source.readNext().foreach(sink.write)\r\n  }\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\n\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Scala \u0432 VPasCode<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u0421\u0442\u0440\u0430\u0442\u0435\u0433\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043b\u0443\u0447\u0448\u0438\u0435 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438<\/h2>\n
    \n
  • \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 sealed trait<\/code> \u0434\u043b\u044f \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0445 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0439:<\/strong> \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u0434\u043e\u043c\u0435\u043d\u0430 \u0438 \u043a\u043b\u0430\u0441\u0441\u044b \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f sealed trait<\/code> \u0447\u0442\u043e\u0431\u044b \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u044b \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0438 \u0433\u0440\u0443\u043f\u043f\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u0430\u043b\u0433\u0435\u0431\u0440\u0430\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b.<\/li>\n
  • \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 case class<\/code> \u0434\u043b\u044f \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445:<\/strong> \u041c\u043e\u0434\u0435\u043b\u0438\u0440\u0443\u0439\u0442\u0435 \u043d\u0435\u0438\u0437\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f case class<\/code> \u0447\u0442\u043e\u0431\u044b \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043f\u043e\u043b\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u043b\u0438\u0441\u044c \u0438 \u0431\u044b\u043b\u0438 \u043b\u0435\u0433\u043a\u043e \u0447\u0438\u0442\u0430\u0435\u043c\u044b\u043c\u0438 \u043d\u0430 \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u0430\u0440\u0442\u043e\u0447\u043a\u0430\u0445 \u0443\u0437\u043b\u043e\u0432.<\/li>\n
  • \u0420\u0430\u0437\u0434\u0435\u043b\u044f\u0439\u0442\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u043a\u043e\u043d\u0442\u0440\u0430\u043a\u0442\u044b \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0447\u0435\u0440\u0442:<\/strong> \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435 \u0430\u0431\u0441\u0442\u0440\u0430\u043a\u0442\u043d\u044b\u0435 \u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0447\u0435\u0441\u043a\u0438\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f trait<\/code> \u0438 \u043a\u043e\u043c\u043f\u043e\u043d\u0443\u0439\u0442\u0435 \u0438\u0445 \u0447\u0438\u0441\u0442\u043e, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f extends<\/code> \u0438\u043b\u0438 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u043c\u0438\u043a\u0441\u0438\u043d\u043e\u0432.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    \u041f\u0440\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u0438\u043b\u0438 \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0440\u0435\u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 Scala \u043d\u0430\u0432\u0438\u0433\u0430\u0446\u0438\u044f \u043f\u043e \u0430\u043b\u0433\u0435\u0431\u0440\u0430\u0438\u0447\u0435\u0441\u043a\u0438\u043c \u0442\u0438\u043f\u0430\u043c \u0434\u0430\u043d\u043d\u044b\u0445, \u043c\u0438\u043a\u0441\u0438\u043d\u0430\u043c \u0442\u0440\u0435\u0439\u0442\u043e\u0432 \u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430\u043c \u0430\u043a\u0442\u043e\u0440\u043e\u0432 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u043b\u043e\u0436\u043d\u043e\u0439. The Scala Visualizer \u043f\u0440\u0435\u043e\u0431\u0440\u0430\u0437\u0443\u0435\u0442 \u043a\u043b\u0430\u0441\u0441\u044b Scala, case-\u043a\u043b\u0430\u0441\u0441\u044b, sealed-\u0442\u0440\u0435\u0439\u0442\u044b, \u043e\u0431\u044a\u0435\u043a\u0442\u044b \u0438 \u0438\u0435\u0440\u0430\u0440\u0445\u0438\u0438 \u0442\u0440\u0435\u0439\u0442\u043e\u0432 \u0432…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":10,"template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"ld_collection":[14],"class_list":["post-2024","ld_docs","type-ld_docs","status-publish","hentry","ld_collection-vpascode-docs"],"yoast_head":"\nScala to Diagram Guide | Text to Diagram with VPasCode<\/title>\n<meta name=\"description\" content=\"Easily turn Scala code definitions into visual layout charts. Experience fast text to diagram conversion using the VPasCode diagram-as-code tool.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vpascode.com\/ru\/docs\/vpascode-docs\/scala-visualizer-guide\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scala to Diagram Guide | Text to Diagram with VPasCode\" \/>\n<meta property=\"og:description\" content=\"Easily turn Scala code definitions into visual layout charts. Experience fast text to diagram conversion using the VPasCode diagram-as-code tool.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.vpascode.com\/ru\/docs\/vpascode-docs\/scala-visualizer-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"VPasCode\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/07\/img_6a685439905ac-e1785223877859.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u041f\u0440\u0438\u043c\u0435\u0440\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 \u043c\u0438\u043d\u0443\u0442\u044b\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.vpascode.com\\\/ru\\\/docs\\\/vpascode-docs\\\/scala-visualizer-guide\\\/\",\"url\":\"https:\\\/\\\/www.vpascode.com\\\/ru\\\/docs\\\/vpascode-docs\\\/scala-visualizer-guide\\\/\",\"name\":\"Scala to Diagram Guide | Text to Diagram with VPasCode\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.vpascode.com\\\/ru\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.vpascode.com\\\/ru\\\/docs\\\/vpascode-docs\\\/scala-visualizer-guide\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.vpascode.com\\\/ru\\\/docs\\\/vpascode-docs\\\/scala-visualizer-guide\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.vpascode.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/img_6a685439905ac-e1785223877859.png\",\"datePublished\":\"2026-07-28T06:23:23+00:00\",\"description\":\"Easily turn Scala code definitions into visual layout charts. 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