public IHystrixCommand GetHystrixCommand(HystrixCommandIdentifier commandIdentifier)
{
IHystrixCommand hystrixCommand;
if (CommandsDictionary.TryGetValue(commandIdentifier, out hystrixCommand))
{
return(hystrixCommand);
}
// add value in a thread-safe way
hystrixCommand = CommandsDictionary.AddOrUpdate(
commandIdentifier,
ci =>
{
Log.DebugFormat("Added a new command with group {0} and key {1}.", ci.GroupKey, ci.CommandKey);
return(CreateHystrixCommand(ci));
},
(ci, command) =>
{
Log.DebugFormat("Command with group {0} and key {1} already exists, not creating it again.", ci.GroupKey, ci.CommandKey);
return(command);
});
return(hystrixCommand);
}
public HystrixCommand(HystrixCommandIdentifier commandIdentifier, IHystrixTimeoutWrapper timeoutWrapper, IHystrixCircuitBreaker circuitBreaker, IHystrixCommandMetrics commandMetrics, IHystrixThreadPoolMetrics threadPoolMetrics, IHystrixConfigurationService configurationService)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException("commandIdentifier");
}
if (timeoutWrapper == null)
{
throw new ArgumentNullException("timeoutWrapper");
}
if (circuitBreaker == null)
{
throw new ArgumentNullException("circuitBreaker");
}
if (commandMetrics == null)
{
throw new ArgumentNullException("commandMetrics");
}
if (threadPoolMetrics == null)
{
throw new ArgumentNullException("threadPoolMetrics");
}
if (configurationService == null)
{
throw new ArgumentNullException("configurationService");
}
this.commandIdentifier = commandIdentifier;
this.timeoutWrapper = timeoutWrapper;
this.circuitBreaker = circuitBreaker;
this.commandMetrics = commandMetrics;
this.threadPoolMetrics = threadPoolMetrics;
this.configurationService = configurationService;
}
public HystrixCircuitBreaker(IDateTimeProvider dateTimeProvider, HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService, IHystrixCommandMetrics commandMetrics)
{
this.dateTimeProvider = dateTimeProvider ?? throw new ArgumentNullException(nameof(dateTimeProvider));
this.commandIdentifier = commandIdentifier ?? throw new ArgumentNullException(nameof(commandIdentifier));
this.configurationService = configurationService ?? throw new ArgumentNullException(nameof(configurationService));
this.commandMetrics = commandMetrics ?? throw new ArgumentNullException(nameof(commandMetrics));
}
public HystrixWebConfigConfigurationService(HystrixCommandIdentifier commandIdentifier)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException("commandIdentifier");
}
this.commandIdentifier = commandIdentifier;
}
private static IHystrixCommand CreateHystrixCommand(HystrixCommandIdentifier commandIdentifier)
{
var configurationServiceImplementation = ConfigurationManager.AppSettings[ConfigurationserviceimplementationAppsettingName];
var configurationService = configurationServiceImplementation != null && configurationServiceImplementation.Equals("HystrixJsonConfigConfigurationService", StringComparison.InvariantCultureIgnoreCase) ? (IHystrixConfigurationService) new HystrixJsonConfigConfigurationService(commandIdentifier) : (IHystrixConfigurationService) new HystrixWebConfigConfigurationService(commandIdentifier);
var commandMetrics = new HystrixCommandMetrics(commandIdentifier, configurationService);
var timeoutWrapper = new HystrixTimeoutWrapper(commandIdentifier, configurationService);
var circuitBreaker = new HystrixCircuitBreaker(commandIdentifier, configurationService, commandMetrics);
var threadPoolMetrics = new HystrixThreadPoolMetrics(commandIdentifier, configurationService);
return(new HystrixCommand(commandIdentifier, timeoutWrapper, circuitBreaker, commandMetrics, threadPoolMetrics, configurationService));
}
public HystrixTimeoutWrapper(HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException(nameof(commandIdentifier));
}
if (configurationService == null)
{
throw new ArgumentNullException(nameof(configurationService));
}
this.commandIdentifier = commandIdentifier;
this.configurationService = configurationService;
}
public HystrixLocalConfigurationService(HystrixCommandIdentifier commandIdentifier, HystrixLocalOptions localOptions)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException(nameof(commandIdentifier));
}
if (localOptions == null)
{
throw new ArgumentNullException(nameof(localOptions), "The option Details must be provided in order to use the HystrixLocalConfigurationService.");
}
options = localOptions.GetCommandOptions(commandIdentifier);
}
public HystrixThreadPoolMetrics(HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException(nameof(commandIdentifier));
}
if (configurationService == null)
{
throw new ArgumentNullException(nameof(configurationService));
}
ConfigurationService = configurationService;
counter = new HystrixRollingNumber(configurationService.GetMetricsRollingStatisticalWindowInMilliseconds(), configurationService.GetMetricsRollingStatisticalWindowBuckets());
}
private static IHystrixCommand CreateHystrixCommand(HystrixCommandIdentifier commandIdentifier, HystrixOptions options)
{
var configurationServiceImplementation = options.ConfigurationServiceImplementation;
var configurationService =
configurationServiceImplementation != null && configurationServiceImplementation.Equals("HystrixJsonConfigConfigurationService", StringComparison.OrdinalIgnoreCase)
? (IHystrixConfigurationService) new HystrixJsonConfigConfigurationService(commandIdentifier, options.JsonConfigurationSourceOptions)
: new HystrixLocalConfigurationService(commandIdentifier, options.LocalOptions);
var commandMetrics = new HystrixCommandMetrics(commandIdentifier, configurationService);
var timeoutWrapper = new HystrixTimeoutWrapper(commandIdentifier, configurationService);
var circuitBreaker = new HystrixCircuitBreaker(commandIdentifier, configurationService, commandMetrics);
var threadPoolMetrics = new HystrixThreadPoolMetrics(commandIdentifier, configurationService);
return(new HystrixCommand(commandIdentifier, timeoutWrapper, circuitBreaker, commandMetrics, threadPoolMetrics, configurationService));
}
public HystrixJsonConfigConfigurationService(HystrixCommandIdentifier commandIdentifier)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException("commandIdentifier");
}
this.commandIdentifier = commandIdentifier;
LoadWebConfigValues();
// load remote config synchronous first time (might throw an aggregate exception)
LoadRemoteConfigInternal(60000).Wait();
LoadRemoteConfigAfterInterval();
}
public HystrixJsonConfigConfigurationService(HystrixCommandIdentifier commandIdentifier, HystrixJsonConfigurationSourceOptions options)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException(nameof(commandIdentifier));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
this.commandIdentifier = commandIdentifier;
pollingIntervalInMillisecond = options.PollingIntervalInMilliseconds;
log.InfoFormat("Loading web config values for group {0} and key {1}", commandIdentifier.GroupKey, commandIdentifier.CommandKey);
log.InfoFormat("PollingIntervalInMillisecond for group {0} and key {1} is {2}", commandIdentifier.GroupKey, commandIdentifier.CommandKey, pollingIntervalInMillisecond);
log.InfoFormat("BaseLocation for group {0} and key {1} is {2}", commandIdentifier.GroupKey, commandIdentifier.CommandKey, options.BaseLocation);
log.InfoFormat("LocationPattern for group {0} and key {1} is {2}", commandIdentifier.GroupKey, commandIdentifier.CommandKey, options.LocationPattern);
Uri baseLocationUrl;
if (!Uri.TryCreate(EnsureTrailingSlash(options.BaseLocation), UriKind.Absolute, out baseLocationUrl))
{
throw new ConfigurationException("Options.BaseLocation has to contain a valid url.");
}
if (!Uri.TryCreate(baseLocationUrl, string.Format(options.LocationPattern, commandIdentifier.GroupKey, commandIdentifier.CommandKey), out configurationFileUrl))
{
throw new ConfigurationException("Options.BaseLocation has to contain a valid url.");
}
if (!Uri.TryCreate(baseLocationUrl, "Default.json", out defaultConfigurationFileUrl))
{
throw new ConfigurationException("Options.BaseLocation has to contain a valid url.");
}
// load remote config synchronous first time (might throw an aggregate exception)
LoadRemoteConfigInternal(60000).Wait();
LoadRemoteConfigAfterInterval();
}
public HystrixCommandMetrics(DateTimeProvider dateTimeProvider, HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException(nameof(commandIdentifier));
}
if (configurationService == null)
{
throw new ArgumentNullException(nameof(configurationService));
}
this.dateTimeProvider = dateTimeProvider;
this.configurationService = configurationService;
percentileExecution = new HystrixRollingPercentile(configurationService.GetMetricsRollingPercentileWindowInMilliseconds(), configurationService.GetMetricsRollingPercentileWindowBuckets(), configurationService.GetMetricsRollingPercentileBucketSize(), configurationService);
percentileTotal = new HystrixRollingPercentile(configurationService.GetMetricsRollingPercentileWindowInMilliseconds(), configurationService.GetMetricsRollingPercentileWindowBuckets(), configurationService.GetMetricsRollingPercentileBucketSize(), configurationService);
counter = new HystrixRollingNumber(configurationService.GetMetricsRollingStatisticalWindowInMilliseconds(), configurationService.GetMetricsRollingStatisticalWindowBuckets());
}
public HystrixCircuitBreaker(DateTimeProvider dateTimeProvider, HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService, IHystrixCommandMetrics commandMetrics)
{
if (commandIdentifier == null)
{
throw new ArgumentNullException("commandIdentifier");
}
if (configurationService == null)
{
throw new ArgumentNullException("configurationService");
}
if (commandMetrics == null)
{
throw new ArgumentNullException("commandMetrics");
}
this.dateTimeProvider = dateTimeProvider;
this.commandIdentifier = commandIdentifier;
this.configurationService = configurationService;
this.commandMetrics = commandMetrics;
}
public bool Equals(HystrixCommandIdentifier obj)
{
return(obj != null && obj.GroupKey.Equals(GroupKey, StringComparison.InvariantCultureIgnoreCase) && obj.CommandKey.Equals(CommandKey, StringComparison.InvariantCultureIgnoreCase));
}
public HystrixCommandMetrics(HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService)
: this(new DateTimeProvider(), commandIdentifier, configurationService)
{
}
public IHystrixCommand GetHystrixCommand(HystrixCommandIdentifier commandIdentifier)
{
return(new FakeHystrixCommand(commandIdentifier, runFallbackOrThrowException));
}
public HystrixCircuitBreaker(HystrixCommandIdentifier commandIdentifier, IHystrixConfigurationService configurationService, IHystrixCommandMetrics commandMetrics)
: this(new DateTimeProvider(), commandIdentifier, configurationService, commandMetrics)
{
}
public FakeHystrixCommand(HystrixCommandIdentifier commandIdentifier, bool runFallbackOrThrowException)
{
this.runFallbackOrThrowException = runFallbackOrThrowException;
CommandIdentifier = commandIdentifier;
}
public HystrixCommandOptions GetCommandOptions(HystrixCommandIdentifier id) => GetCommandOptions(id.GroupKey, id.CommandKey);