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ScriptHostOptionsSetup.cs
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ScriptHostOptionsSetup.cs
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// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
using System;
using System.Globalization;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Options;
using static Microsoft.Azure.WebJobs.Script.Rpc.LanguageWorkerConstants;
namespace Microsoft.Azure.WebJobs.Script.Configuration
{
internal class ScriptHostOptionsSetup : IConfigureOptions<ScriptJobHostOptions>
{
private readonly IConfiguration _configuration;
private readonly IEnvironment _environment;
private readonly IOptions<ScriptApplicationHostOptions> _applicationHostOptions;
internal static readonly TimeSpan MinFunctionTimeout = TimeSpan.FromSeconds(1);
internal static readonly TimeSpan DefaultFunctionTimeoutDynamic = TimeSpan.FromMinutes(5);
internal static readonly TimeSpan MaxFunctionTimeoutDynamic = TimeSpan.FromMinutes(10);
internal static readonly TimeSpan DefaultFunctionTimeout = TimeSpan.FromMinutes(30);
public ScriptHostOptionsSetup(IConfiguration configuration, IEnvironment environment, IOptions<ScriptApplicationHostOptions> applicationHostOptions)
{
_configuration = configuration;
_environment = environment;
_applicationHostOptions = applicationHostOptions;
}
public void Configure(ScriptJobHostOptions options)
{
// Add the standard built in watched directories set to any the user may have specified
options.WatchDirectories.Add("node_modules");
// Set default logging mode
options.FileLoggingMode = FileLoggingMode.DebugOnly;
// Bind to all configuration properties
IConfigurationSection jobHostSection = _configuration.GetSection(ConfigurationSectionNames.JobHost);
if (jobHostSection != null)
{
jobHostSection.Bind(options);
var fileLoggingMode = jobHostSection.GetSection(ConfigurationSectionNames.Logging)
?.GetValue<FileLoggingMode?>("fileLoggingMode");
if (fileLoggingMode != null)
{
options.FileLoggingMode = fileLoggingMode.Value;
}
}
// FunctionTimeout
ConfigureFunctionTimeout(options);
// If we have a read only file system, override any configuration and
// disable file watching
if (_environment.FileSystemIsReadOnly())
{
options.FileWatchingEnabled = false;
}
// Set the root script path to the value the runtime was initialized with:
ScriptApplicationHostOptions webHostOptions = _applicationHostOptions.Value;
options.RootScriptPath = webHostOptions.ScriptPath;
options.RootLogPath = webHostOptions.LogPath;
options.IsSelfHost = webHostOptions.IsSelfHost;
options.TestDataPath = webHostOptions.TestDataPath;
}
private void ConfigureFunctionTimeout(ScriptJobHostOptions options)
{
if (options.FunctionTimeout != null)
{
ValidateTimeoutValue(options, options.FunctionTimeout);
}
else
{
options.FunctionTimeout = _environment.IsDynamic() ? DefaultFunctionTimeoutDynamic : DefaultFunctionTimeout;
}
}
private void ValidateTimeoutValue(ScriptJobHostOptions options, TimeSpan? timeoutValue)
{
if (timeoutValue != null)
{
var maxTimeout = TimeSpan.MaxValue;
if (_environment.IsDynamic())
{
maxTimeout = MaxFunctionTimeoutDynamic;
}
if (timeoutValue < MinFunctionTimeout || timeoutValue > maxTimeout)
{
string message = $"{nameof(options.FunctionTimeout)} must be greater than {MinFunctionTimeout} and less than {maxTimeout}.";
throw new ArgumentException(message);
}
}
}
}
}