protected virtual void EnsureNonContinuousFeedIsRequested(GetChangesRequest request)
{
if (request.Feed.HasValue && request.Feed == ChangesFeed.Continuous)
{
throw new ArgumentException(ExceptionStrings.GetChangesForNonContinuousFeedOnly, nameof(request));
}
}
public virtual HttpRequest Create(GetChangesRequest request)
{
Ensure.Any.IsNotNull(request, nameof(request));
return(new HttpRequest(HttpMethod.Get, GenerateRelativeUrl(request))
.SetRequestTypeHeader(request.GetType()));
}
private static async void MainSync2()
{
GetChangesRequest request = new GetChangesRequest();
request.IncludeDocs = false;
request.Since = "0";
request.Heartbeat = 1000;
request.Feed = ChangesFeed.Continuous;
request.Style = ChangesStyle.AllDocs;
DbConnectionInfo connectionInfo = new DbConnectionInfo("http://localhost:4984", "couchbasegames");
IDbConnection db = new DbConnection(connectionInfo);
SerializationConfiguration serializationConfiguration = new SerializationConfiguration(new DefaultContractResolver());
ISerializer serializer = new DefaultSerializer(serializationConfiguration, new DocumentSerializationMetaProvider(), null);
Changes changes = new Changes(db, serializer);
IObservable <string> observable = changes.ObserveContinuous(request, new CancellationToken(false));
observable.Subscribe(new MyObserver()
{
InterceptOnNext = v =>
{
// Console.WriteLine(" no conflict detected Id : change {0}", v);
if (!string.IsNullOrEmpty(v))
{
RootObject c = JsonConvert.DeserializeObject <RootObject>(v);
if (c.changes.Count > 1)
{
if (conflicts.ContainsKey(c.id))
{
conflicts[c.id] = c.changes;
}
else
{
conflicts.Add(c.id, c.changes);
}
c.changes.ForEach(x => { Console.WriteLine(" conflict detected : id {0} and changes {1}", c.id, x.rev); });
}
else
{
Console.WriteLine(" no conflict detected Id : {0}, change {1}", c.id, v);
}
}
},
InterceptOnError = e => {
Console.WriteLine(e.Message);
}
});
SpinWait.SpinUntil(() => Console.ReadLine() == "C");
}
public override HttpRequest Create(GetChangesRequest request)
{
Ensure.Any.IsNotNull(request, nameof(request));
EnsureContinuousFeedIsRequested(request);
return(base.Create(request));
}
public virtual async Task <ChangesResponse> GetAsync(GetChangesRequest request)
{
var httpRequest = HttpRequestFactory.Create(request);
using (var httpResponse = await SendAsync(httpRequest, HttpCompletionOption.ResponseHeadersRead).ForAwait())
{
return(await ChangesResponseFactory.CreateAsync(httpResponse).ForAwait());
}
}
/// <summary>
/// Returns all configured options of <see cref="GetChangesRequest"/> as key values.
/// The values are formatted to JSON-compatible strings.
/// </summary>
/// <returns></returns>
protected virtual IDictionary <string, string> ConvertRequestToJsonCompatibleKeyValues(GetChangesRequest request)
{
var kvs = new Dictionary <string, string>();
if (request.Feed.HasValue)
{
kvs.Add(KeyNames.Feed, request.Feed.Value.AsString());
}
if (!string.IsNullOrWhiteSpace(request.Since))
{
kvs.Add(KeyNames.Since, request.Since);
}
if (request.IncludeDocs.HasValue)
{
kvs.Add(KeyNames.IncludeDocs, request.IncludeDocs.Value.ToString().ToLower());
}
if (request.Descending.HasValue)
{
kvs.Add(KeyNames.Descending, request.Descending.Value.ToString().ToLower());
}
if (request.Limit.HasValue)
{
kvs.Add(KeyNames.Limit, request.Limit.Value.ToString(MyCouchRuntime.FormatingCulture.NumberFormat));
}
if (request.Heartbeat.HasValue)
{
kvs.Add(KeyNames.HeartBeat, request.Heartbeat.Value.ToString(MyCouchRuntime.FormatingCulture.NumberFormat));
}
if (request.Timeout.HasValue)
{
kvs.Add(KeyNames.Timeout, request.Timeout.Value.ToString(MyCouchRuntime.FormatingCulture.NumberFormat));
}
if (request.Filter != null)
{
kvs.Add(KeyNames.Filter, request.Filter);
}
if (request.Style.HasValue)
{
kvs.Add(KeyNames.Style, request.Style.Value.AsString());
}
return(kvs);
}
protected virtual string GenerateQueryStringParams(GetChangesRequest request)
{
return(string.Join("&", ConvertRequestToJsonCompatibleKeyValues(request)
.Select(kv => string.Format("{0}={1}", kv.Key, UrlParam.Encode(kv.Value)))));
}
protected virtual string GenerateQueryString(GetChangesRequest request)
{
var p = GenerateQueryStringParams(request);
return(string.IsNullOrEmpty(p) ? string.Empty : string.Concat("?", p));
}
protected virtual string GenerateRelativeUrl(GetChangesRequest request)
{
return(string.Format("/_changes{0}",
GenerateQueryString(request)));
}
