public static async Task <DiscoveryServiceCache> CreateAndSaveAsync(string userId, IDictionary <string, CapabilityDiscoveryResult> discoveryInfoForServices)
{
var cache = new DiscoveryServiceCache
{
UserId = userId,
DiscoveryInfoForServices = discoveryInfoForServices
};
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile textFile = await localFolder.CreateFileAsync(FileName, CreationCollisionOption.ReplaceExisting);
try
{
_lock.EnterWriteLock();
using (IRandomAccessStream textStream = await textFile.OpenAsync(FileAccessMode.ReadWrite))
{
using (DataWriter textWriter = new DataWriter(textStream))
{
cache.Save(textWriter);
await textWriter.StoreAsync();
}
}
}
finally
{
_lock.ExitWriteLock();
}
return(cache);
}
public static async Task <ServiceCapabilityCache> LoadAsync(ServiceCapabilities capability)
{
CapabilityDiscoveryResult capabilityDiscoveryResult = null;
DiscoveryServiceCache cache = await LoadAsync();
cache.DiscoveryInfoForServices.TryGetValue(capability.ToString(), out capabilityDiscoveryResult);
if (cache == null || capabilityDiscoveryResult == null)
{
return(null);
}
return(new ServiceCapabilityCache
{
UserId = cache.UserId,
CapabilityResult = capabilityDiscoveryResult
});
}
private static DiscoveryServiceCache Load(DataReader textReader)
{
var cache = new DiscoveryServiceCache();
cache.UserId = textReader.ReadString();
var entryCount = textReader.ReadInt32();
cache.DiscoveryInfoForServices = new Dictionary <string, CapabilityDiscoveryResult>(entryCount);
for (var i = 0; i < entryCount; i++)
{
var key = textReader.ReadString();
var serviceResourceId = textReader.ReadString();
var serviceEndpointUri = new Uri(textReader.ReadString());
var serviceApiVersion = textReader.ReadString();
cache.DiscoveryInfoForServices.Add(key, new CapabilityDiscoveryResult(serviceEndpointUri, serviceResourceId, serviceApiVersion));
}
return(cache);
}
public static async Task<DiscoveryServiceCache> CreateAndSaveAsync(string userId, IDictionary<string, CapabilityDiscoveryResult> discoveryInfoForServices)
{
var cache = new DiscoveryServiceCache
{
UserId = userId,
DiscoveryInfoForServices = discoveryInfoForServices
};
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile textFile = await localFolder.CreateFileAsync(FileName, CreationCollisionOption.ReplaceExisting);
try
{
_lock.EnterWriteLock();
using (IRandomAccessStream textStream = await textFile.OpenAsync(FileAccessMode.ReadWrite))
{
using (DataWriter textWriter = new DataWriter(textStream))
{
cache.Save(textWriter);
await textWriter.StoreAsync();
}
}
}
finally
{
_lock.ExitWriteLock();
}
return cache;
}
private static DiscoveryServiceCache Load(DataReader textReader)
{
var cache = new DiscoveryServiceCache();
cache.UserId = textReader.ReadString();
var entryCount = textReader.ReadInt32();
cache.DiscoveryInfoForServices = new Dictionary<string, CapabilityDiscoveryResult>(entryCount);
for (var i = 0; i < entryCount; i++)
{
var key = textReader.ReadString();
var serviceResourceId = textReader.ReadString();
var serviceEndpointUri = new Uri(textReader.ReadString());
var serviceApiVersion = textReader.ReadString();
cache.DiscoveryInfoForServices.Add(key, new CapabilityDiscoveryResult(serviceEndpointUri, serviceResourceId, serviceApiVersion));
}
return cache;
}