public HealthCheckService(HealthCheckBuilder builder, IServiceProvider serviceProvider,
IServiceScopeFactory serviceScopeFactory)
{
_builder = builder;
_groups = GetGroups().Where(group => group.GroupName != string.Empty).ToList();
_root = GetGroup(string.Empty);
_serviceProvider = serviceProvider;
_serviceScopeFactory = serviceScopeFactory;
}
/// <summary>
/// This constructor should only be used when creating a grouped health check builder.
/// </summary>
public HealthCheckBuilder(HealthCheckBuilder rootBuilder, HealthCheckGroup currentGroup)
{
Guard.ArgumentNotNull(nameof(rootBuilder), rootBuilder);
Guard.ArgumentNotNull(nameof(currentGroup), currentGroup);
_checksByName = rootBuilder._checksByName;
_currentGroup = currentGroup;
_groups = rootBuilder._groups;
DefaultCacheDuration = rootBuilder.DefaultCacheDuration;
}
public static IServiceCollection AddHealthChecks(this IServiceCollection services,
Action <HealthCheckBuilder> checks)
{
Guard.OperationValid(services.All(descriptor => descriptor.ServiceType != HealthCheckServiceInterface),
"AddHealthChecks may only be called once.");
var builder = new HealthCheckBuilder();
services.AddSingleton <IHealthCheckService, HealthCheckService>(serviceProvider =>
{
var serviceScopeFactory = serviceProvider.GetService <IServiceScopeFactory>();
return(new HealthCheckService(builder, serviceProvider, serviceScopeFactory));
});
checks(builder);
return(services);
}
/// <summary>
/// Creates a new health check group, to which you can add one or more health
/// checks.
/// </summary>
public HealthCheckBuilder AddHealthCheckGroup(string groupName, Action <HealthCheckBuilder> groupChecks,
CheckStatus partialSuccessStatus)
{
Guard.ArgumentNotNullOrEmpty(nameof(groupName), groupName);
Guard.ArgumentNotNull(nameof(groupChecks), groupChecks);
Guard.ArgumentValid(partialSuccessStatus != CheckStatus.Unknown, nameof(partialSuccessStatus),
"Check status 'Unknown' is not valid for partial success.");
Guard.ArgumentValid(!_groups.ContainsKey(groupName), nameof(groupName),
$"A group with name '{groupName}' has already been registered.");
Guard.OperationValid(_currentGroup.GroupName == string.Empty,
"Nested groups are not supported by HealthCheckBuilder.");
var group = new HealthCheckGroup(groupName, partialSuccessStatus);
_groups.Add(groupName, group);
var innerBuilder = new HealthCheckBuilder(this, group);
groupChecks(innerBuilder);
return(this);
}
