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PrintQuoteEvents fix test error(reproduced only on github builder)
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60 changes: 60 additions & 0 deletions
60
Samples/Playgrounds/PrintQuoteEvents.playground/Contents.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| import Foundation | ||
| import PlaygroundSupport | ||
| import DXFeedFramework | ||
|
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| //Empty Listener with handler | ||
| class Listener: DXEventListener, Hashable { | ||
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| static func == (lhs: Listener, rhs: Listener) -> Bool { | ||
| lhs === rhs | ||
| } | ||
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| func hash(into hasher: inout Hasher) { | ||
| hasher.combine("\(self):\(stringReference(self))") | ||
| } | ||
| var callback: ([MarketEvent]) -> Void = { _ in } | ||
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| func receiveEvents(_ events: [MarketEvent]) { | ||
| self.callback(events) | ||
| } | ||
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| init(overrides: (Listener) -> Listener) { | ||
| _ = overrides(self) | ||
| } | ||
| } | ||
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| // A simple sample that shows how to subscribe to quotes for one instruments, | ||
| // and print all received quotes to the console. | ||
| // Use default DXFeed instance for that data feed address is defined by "dxfeed.properties" file. | ||
| // The properties file is copied to the build output directory from the project directory. | ||
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| // Specified instrument name, for example AAPL, IBM, MSFT, etc. | ||
| let symbol = "AAPL" | ||
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| // Use path to dxfeed.properties with feed address | ||
| let propertiesFilePath = Bundle.main.path(forResource: "dxfeed.properties", ofType: nil) | ||
| try SystemProperty.setProperty(DXEndpoint.Property.properties.rawValue, propertiesFilePath ?? "") | ||
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| // Creates a subscription attached to a default DXFeed with a Quote event type. | ||
| // The endpoint address to use is stored in the "dxfeed.properties" file. | ||
| let subscription = try DXEndpoint.getInstance() | ||
| .getFeed()? | ||
| .createSubscription(EventCode.quote) | ||
| let listenerTrade = Listener { listener in | ||
| listener.callback = { events in | ||
| events.forEach { event in | ||
| print(event.toString()) | ||
| } | ||
| } | ||
| return listener | ||
| } | ||
| // Listener must be attached before symbols are added. | ||
| try subscription?.add(listener: listenerTrade) | ||
| try subscription?.addSymbols(symbol) | ||
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| // infinity execution | ||
| PlaygroundPage.current.needsIndefiniteExecution = true | ||
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| // to finish execution run this line | ||
| PlaygroundPage.current.finishExecution() |
2 changes: 2 additions & 0 deletions
2
Samples/Playgrounds/PrintQuoteEvents.playground/Resources/dxfeed.properties
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| # Connection address for an endpoint with role Feed and OnDemandFeed. | ||
| dxfeed.address=demo.dxfeed.com:7300 |
4 changes: 4 additions & 0 deletions
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Samples/Playgrounds/PrintQuoteEvents.playground/contents.xcplayground
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| <?xml version="1.0" encoding="UTF-8" standalone="yes"?> | ||
| <playground version='5.0' target-platform='macos' buildActiveScheme='true' importAppTypes='true'> | ||
| <timeline fileName='timeline.xctimeline'/> | ||
| </playground> |