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Add ONVIF PTZ sample (#108)
## Purpose Add the ONVIF PTZ demo app ## Does this introduce a breaking change? <!-- Mark one with an "x". --> ``` [ ] Yes [x] No ``` ## Pull Request Type What kind of change does this Pull Request introduce? <!-- Please check the one that applies to this PR using "x". --> ``` [ ] Bugfix [ ] Feature [ ] Code style update (formatting, local variables) [ ] Refactoring (no functional changes, no api changes) [x] Documentation content changes [ ] Other... Please describe: ``` ## Other Information This sample is referenced from Microsoft Learn docs
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‎samples/aio-onvif-connector-ptz-demo/.gitignore

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‎samples/aio-onvif-connector-ptz-demo/Aio.Onvif.Connector.Ptz.Demo.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.5.002.0
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Aio.Onvif.Connector.Ptz.Demo", "Aio.Onvif.Connector.Ptz.Demo\Aio.Onvif.Connector.Ptz.Demo.csproj", "{BE93AC76-C663-47D1-9C3A-E18E32E18A3F}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PTZ", "PTZ\PTZ.csproj", "{2EC99FE6-8C42-4AAE-ABCD-DE4291ED2655}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{BE93AC76-C663-47D1-9C3A-E18E32E18A3F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{BE93AC76-C663-47D1-9C3A-E18E32E18A3F}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{BE93AC76-C663-47D1-9C3A-E18E32E18A3F}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{BE93AC76-C663-47D1-9C3A-E18E32E18A3F}.Release|Any CPU.Build.0 = Release|Any CPU
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{2EC99FE6-8C42-4AAE-ABCD-DE4291ED2655}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{2EC99FE6-8C42-4AAE-ABCD-DE4291ED2655}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{2EC99FE6-8C42-4AAE-ABCD-DE4291ED2655}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{2EC99FE6-8C42-4AAE-ABCD-DE4291ED2655}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {8AC4980E-CA54-4BB8-B99D-BC2A701A68CF}
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EndGlobalSection
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EndGlobal

‎samples/aio-onvif-connector-ptz-demo/Aio.Onvif.Connector.Ptz.Demo/Aio.Onvif.Connector.Ptz.Demo.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<ItemGroup>
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<ProjectReference Include="..\PTZ\PTZ.csproj" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Azure.Iot.Operations.Mqtt" Version="0.4.225" />
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</ItemGroup>
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net8.0</TargetFramework>
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<RootNamespace>Aio.Onvif.Connector.Ptz.Demo</RootNamespace>
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<ImplicitUsings>enable</ImplicitUsings>
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<Nullable>enable</Nullable>
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</PropertyGroup>
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</Project>

‎samples/aio-onvif-connector-ptz-demo/Aio.Onvif.Connector.Ptz.Demo/Program.cs

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using Aio.Onvif.Connector.Ptz.Demo;
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using Azure.Iot.Operations.Mqtt.Session;
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using Azure.Iot.Operations.Protocol.Models;
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using PTZ.dtmi_onvif_ptz__1;
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Console.Write("Mqtt Broker Host: ");
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var host = Console.ReadLine();
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if (string.IsNullOrWhiteSpace(host))
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{
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Console.Error.WriteLine("Invalid host");
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Environment.Exit(1);
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}
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Console.Write("Mqtt Broker Port: ");
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if (!int.TryParse(Console.ReadLine(), out var port))
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{
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Console.Error.WriteLine("Invalid port number");
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Environment.Exit(1);
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}
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Console.Write("AIO Namespace: ");
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var aioNamespace = Console.ReadLine();
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if (string.IsNullOrWhiteSpace(aioNamespace))
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{
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Console.Error.WriteLine("Invalid AIO namespace");
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Environment.Exit(1);
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}
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Console.Write("Asset Name: ");
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var assetName = Console.ReadLine();
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if (string.IsNullOrWhiteSpace(assetName))
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{
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Console.Error.WriteLine("Invalid asset name");
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Environment.Exit(1);
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}
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Console.Write("Profile Token: ");
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var profileToken = Console.ReadLine();
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if (string.IsNullOrWhiteSpace(profileToken))
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{
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Console.Error.WriteLine("Invalid profile token");
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Environment.Exit(1);
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}
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Console.Clear();
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var mqttClientTcpOptions = new MqttClientTcpOptions(host, port);
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var mqttClientOptions = new MqttClientOptions(mqttClientTcpOptions) { SessionExpiryInterval = 60 };
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var mqttSessionClient = new MqttSessionClient(new MqttSessionClientOptions());
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await mqttSessionClient.ConnectAsync(mqttClientOptions).ConfigureAwait(true);
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var client = new PtzClient(mqttSessionClient);
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client.CustomTopicTokenMap.Add("asset", assetName);
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client.CustomTopicTokenMap.Add("namespace", aioNamespace);
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Console.WriteLine("Use arrow keys or WASD to move camera, Q to quit");
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while (true)
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{
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var key = Console.ReadKey(true).Key;
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if (key == ConsoleKey.Q)
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{
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break;
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}
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(float x, float y)? delta = key switch
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{
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ConsoleKey.UpArrow => (0, 0.2f),
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ConsoleKey.DownArrow => (0, -0.2f),
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ConsoleKey.LeftArrow => (0.2f, 0),
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ConsoleKey.RightArrow => (-0.2f, 0),
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ConsoleKey.W => (0, 0.2f),
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ConsoleKey.S => (0, -0.2f),
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ConsoleKey.A => (0.2f, 0),
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ConsoleKey.D => (-0.2f, 0),
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_ => null
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};
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if (delta == null)
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{
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continue;
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}
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try
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{
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var request = new RelativeMoveRequestPayload
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{
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RelativeMove = new Object_Onvif_Ptz_RelativeMove__1
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{
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ProfileToken = profileToken,
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Translation = new Object_Onvif_Ptz_PTZVector__1
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{
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PanTilt = new Object_Onvif_Ptz_Vector2D__1
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{
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X = delta.Value.x,
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Y = delta.Value.y,
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}
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}
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}
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};
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await client.RelativeMoveAsync(request);
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}
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catch (System.Exception)
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{
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// Bad request is expected if the camera reaches the limit
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}
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await Task.Delay(200).ConfigureAwait(true);
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}
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‎samples/aio-onvif-connector-ptz-demo/Aio.Onvif.Connector.Ptz.Demo/PtzClient.cs

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using System;
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using Azure.Iot.Operations.Protocol;
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using static PTZ.dtmi_onvif_ptz__1.Ptz;
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namespace Aio.Onvif.Connector.Ptz.Demo;
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public class PtzClient : Client
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{
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public PtzClient(IMqttPubSubClient mqttClient) : base(mqttClient)
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{
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}
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}

‎samples/aio-onvif-connector-ptz-demo/PTZ/BytesJsonConverter.cs

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/* Code generated by Azure.Iot.Operations.ProtocolCompiler; DO NOT EDIT. */
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namespace PTZ
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{
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using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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/// <summary>
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/// Class for customized JSON conversion of <c>byte[]</c> values to/from Base64 string representations per RFC 4648.
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/// </summary>
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internal sealed class BytesJsonConverter : JsonConverter<byte[]>
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{
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/// <inheritdoc/>
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public override byte[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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return Convert.FromBase64String(reader.GetString()!);
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}
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/// <inheritdoc/>
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public override void Write(Utf8JsonWriter writer, byte[] value, JsonSerializerOptions options)
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{
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writer.WriteStringValue(Convert.ToBase64String(value));
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}
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}
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}

‎samples/aio-onvif-connector-ptz-demo/PTZ/CombinedPrefixedReadOnlyDictionary.cs

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/* Code generated by Azure.Iot.Operations.ProtocolCompiler; DO NOT EDIT. */
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namespace PTZ
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{
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Linq;
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/// <summary>
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/// An implementation of <c>IReadOnlyDictionary</c> that combines two <c>IReadOnlyDictionary</c> objects by prefixng their string keys.
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/// </summary>
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/// <typeparam name="TKey">The type of keys in the combined dictionary.</typeparam>
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/// <typeparam name="TValue">The type of values in the combined dictionary.</typeparam>
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public class CombinedPrefixedReadOnlyDictionary<TValue> : IReadOnlyDictionary<string, TValue>
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{
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private string prefix1;
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private IReadOnlyDictionary<string, TValue> dict1;
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private string prefix2;
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private IReadOnlyDictionary<string, TValue> dict2;
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/// <summary>
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/// Initializes a new instance of the <see cref="CombinedPrefixedReadOnlyDictionary{TValue}"/> class.
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/// </summary>
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/// <param name="prefix1">The prefix for keys in <paramref name="dict1"/>.</param>
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/// <param name="dict1">One of the <c>IReadOnlyDictionary</c> objects to combine.</param>
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/// <param name="prefix2">The prefix for keys in <paramref name="dict2"/>.</param>
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/// <param name="dict2">The other <c>IReadOnlyDictionary</c> object to combine.</param>
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public CombinedPrefixedReadOnlyDictionary(
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string prefix1,
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IReadOnlyDictionary<string, TValue> dict1,
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string prefix2,
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IReadOnlyDictionary<string, TValue> dict2)
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{
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ArgumentNullException.ThrowIfNull(prefix1, nameof(prefix1));
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ArgumentNullException.ThrowIfNull(dict1, nameof(dict1));
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ArgumentNullException.ThrowIfNull(prefix2, nameof(prefix2));
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ArgumentNullException.ThrowIfNull(dict2, nameof(dict2));
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this.prefix1 = prefix1;
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this.dict1 = dict1;
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this.prefix2 = prefix2;
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this.dict2 = dict2;
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}
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/// <inheritdoc/>
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IEnumerable<string> IReadOnlyDictionary<string, TValue>.Keys => this.dict1.Keys.Select(k => $"{this.prefix1}{k}").Concat(this.dict2.Keys.Select(k => $"{this.prefix2}{k}"));
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/// <inheritdoc/>
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IEnumerable<TValue> IReadOnlyDictionary<string, TValue>.Values => this.dict1.Values.Concat(this.dict2.Values);
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/// <inheritdoc/>
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int IReadOnlyCollection<KeyValuePair<string, TValue>>.Count => this.dict1.Count + this.dict2.Count;
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/// <inheritdoc/>
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TValue IReadOnlyDictionary<string, TValue>.this[string key] =>
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key.StartsWith(this.prefix1, StringComparison.InvariantCulture) && this.dict1.TryGetValue(key.Substring(this.prefix1.Length), out TValue? value1) ? value1 :
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key.StartsWith(this.prefix2, StringComparison.InvariantCulture) && this.dict2.TryGetValue(key.Substring(this.prefix2.Length), out TValue? value2) ? value2 :
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default(TValue)!;
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/// <inheritdoc/>
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bool IReadOnlyDictionary<string, TValue>.ContainsKey(string key)
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{
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return
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key.StartsWith(this.prefix1, StringComparison.InvariantCulture) && this.dict1.ContainsKey(key.Substring(this.prefix1.Length)) ||
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key.StartsWith(this.prefix2, StringComparison.InvariantCulture) && this.dict2.ContainsKey(key.Substring(this.prefix2.Length));
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}
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/// <inheritdoc/>
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IEnumerator<KeyValuePair<string, TValue>> IEnumerable<KeyValuePair<string, TValue>>.GetEnumerator()
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{
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foreach (var item in this.dict1)
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{
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yield return new KeyValuePair<string, TValue>($"{this.prefix1}{item.Key}", item.Value);
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}
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foreach (var item in this.dict2)
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{
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yield return new KeyValuePair<string, TValue>($"{this.prefix2}{item.Key}", item.Value);
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}
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}
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/// <inheritdoc/>
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bool IReadOnlyDictionary<string, TValue>.TryGetValue(string key, out TValue value)
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{
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if (key.StartsWith(this.prefix1, StringComparison.InvariantCulture) && this.dict1.TryGetValue(key.Substring(this.prefix1.Length), out TValue? value1))
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{
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value = value1;
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return true;
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}
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if (key.StartsWith(this.prefix2, StringComparison.InvariantCulture) && this.dict2.TryGetValue(key.Substring(this.prefix2.Length), out TValue? value2))
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{
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value = value2;
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return true;
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}
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value = default(TValue)!;
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return false;
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}
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/// <inheritdoc/>
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IEnumerator IEnumerable.GetEnumerator()
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{
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return ((IEnumerable<KeyValuePair<string, TValue>>)this).GetEnumerator();
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}
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}
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}

‎samples/aio-onvif-connector-ptz-demo/PTZ/DateJsonConverter.cs

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/* Code generated by Azure.Iot.Operations.ProtocolCompiler; DO NOT EDIT. */
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namespace PTZ
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{
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using System;
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using System.Globalization;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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/// <summary>
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/// Class for customized JSON conversion of <c>DateOnly</c> values to/from string representations in ISO 8601 Date format.
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/// </summary>
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internal sealed class DateJsonConverter : JsonConverter<DateOnly>
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{
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/// <inheritdoc/>
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public override DateOnly Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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return DateOnly.Parse(reader.GetString()!, CultureInfo.InvariantCulture);
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}
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/// <inheritdoc/>
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public override void Write(Utf8JsonWriter writer, DateOnly value, JsonSerializerOptions options)
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{
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writer.WriteStringValue(value.ToString("o", CultureInfo.InvariantCulture));
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}
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}
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}

‎samples/aio-onvif-connector-ptz-demo/PTZ/DecimalJsonConverter.cs

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/* Code generated by Azure.Iot.Operations.ProtocolCompiler; DO NOT EDIT. */
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namespace PTZ
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{
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using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using PTZ;
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/// <summary>
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/// Class for customized JSON conversion of <c>DecimalString</c> values to/from strings.
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/// </summary>
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internal sealed class DecimalJsonConverter : JsonConverter<DecimalString>
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{
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/// <inheritdoc/>
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public override DecimalString Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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return new DecimalString(reader.GetString()!);
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}
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/// <inheritdoc/>
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public override void Write(Utf8JsonWriter writer, DecimalString value, JsonSerializerOptions options)
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{
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writer.WriteStringValue(value.ToString());
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}
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}
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}

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