public PackagesStatusResult GetPackagesStatus(IEnumerable<PackagingSource> sources) {
var result = new PackagesStatusResult {
Entries = new List<UpdatePackageEntry>(),
Errors = new List<Exception>()
};
foreach (var source in sources) {
var sourceResult = GetPackages(source);
result.DateTimeUtc = sourceResult.DateTimeUtc;
result.Entries = result.Entries.Concat(sourceResult.Entries);
result.Errors = result.Errors.Concat(sourceResult.Errors);
}
return result;
}
private PackagesStatusResult GetPackages(PackagingSource packagingSource) {
// Refresh every 23 hours or when signal was triggered
return _cacheManager.Get(packagingSource.FeedUrl, ctx => {
ctx.Monitor(_clock.When(TimeSpan.FromMinutes(60 * 23)));
ctx.Monitor(_signals.When("PackageUpdateService"));
// We cache exception because we are calling on a network feed, and failure may
// take quite some time.
var result = new PackagesStatusResult {
DateTimeUtc = _clock.UtcNow,
Entries = new List<UpdatePackageEntry>(),
Errors = new List<Exception>()
};
try {
result.Entries = GetPackagesWorker(packagingSource);
}
catch (Exception e) {
result.Errors = new[] { e };
}
return result;
});
}