private async Task <IQueryResult <T> > PostAsync <T>(IQueryRequest queryRequest)
{
var queryResult = new QueryResult <T>();
var content = new FormUrlEncodedContent(queryRequest.GetFormValues());
try
{
var request = await HttpClient.PostAsync(queryRequest.GetBaseUri(), content);
using (var response = await request.Content.ReadAsStreamAsync())
{
queryResult = DataMapper.Map <QueryResult <T> >(response);
queryResult.Success = queryResult.Status == QueryStatus.Success;
}
}
catch (AggregateException ae)
{
ae.Flatten().Handle(e =>
{
Log.Error(e);
ProcessError(e, queryResult);
return(true);
});
}
return(queryResult);
}
/// <summary>
/// Prepare an ad-hoc N1QL statement for later execution against a Couchbase Server.
/// </summary>
/// <param name="toPrepare">The <see cref="IQueryRequest" /> containing a N1QL statement to be prepared.</param>
/// <returns>
/// A <see cref="IQueryResult{T}" /> containing the <see cref="IQueryPlan" /> representing the reusable
/// and cachable execution plan for the statement.
/// </returns>
/// <remarks>
/// Most parameters in the IQueryRequest will be ignored, appart from the Statement and the BaseUri.
/// </remarks>
public IQueryResult <IQueryPlan> Prepare(IQueryRequest toPrepare)
{
string statement = toPrepare.GetStatement();
if (!statement.ToUpper().StartsWith("PREPARE "))
{
statement = string.Concat("PREPARE ", statement);
}
QueryRequest query = new QueryRequest(statement);
query.BaseUri(toPrepare.GetBaseUri());
IQueryResult <dynamic> planResult = Query <dynamic>(query);
IQueryResult <IQueryPlan> result = new QueryResult <IQueryPlan>()
{
Message = planResult.Message,
ClientContextId = planResult.ClientContextId,
Errors = planResult.Errors,
Exception = planResult.Exception,
Metrics = planResult.Metrics,
RequestId = planResult.RequestId,
Signature = planResult.Signature,
Status = planResult.Status,
Rows = new List <IQueryPlan>(1),
Success = planResult.Success
};
if (planResult.Success)
{
var rawPlan = planResult.Rows.First();
string encodedPlan = EncodeParameter(rawPlan);
result.Rows.Add(new QueryPlan(encodedPlan));
}
return(result);
}
/// <summary>
/// Executes the <see cref="IQueryRequest"/> using HTTP POST to the Couchbase Server asynchronously.
/// </summary>
/// <typeparam name="T">The <see cref="Type"/> of each row returned by the query.</typeparam>
/// <param name="queryRequest">The query request.</param>
/// <returns></returns>
/// <remarks>The format for the querying is JSON</remarks>
private async Task <IQueryResult <T> > ExecuteQueryAsync <T>(IQueryRequest queryRequest)
{
var queryResult = new QueryResult <T>();
using (var content = new StringContent(queryRequest.GetFormValuesAsJson(), System.Text.Encoding.UTF8, "application/json")) {
try
{
var request = await HttpClient.PostAsync(queryRequest.GetBaseUri(), content);
using (var response = await request.Content.ReadAsStreamAsync())
{
queryResult = DataMapper.Map <QueryResult <T> >(response);
queryResult.Success = queryResult.Status == QueryStatus.Success;
}
}
catch (AggregateException ae)
{
ae.Flatten().Handle(e =>
{
Log.Error(e);
ProcessError(e, queryResult);
return(true);
});
}
}
return(queryResult);
}
/// <summary>
/// Sends a request for a N1QL query to the server.
/// </summary>
/// <typeparam name="T">The <see cref="Type" /> T of the body for each row (or document) result.</typeparam>
/// <param name="queryRequest">A <see cref="IQueryRequest" /> object.</param>
/// <returns></returns>
Task <IQueryResult <T> > IServer.SendAsync <T>(IQueryRequest queryRequest)
{
if (queryRequest.GetBaseUri() == null)
{
var uri = new Uri(GetBaseQueryUri());
queryRequest.BaseUri(uri);
}
return(QueryClient.QueryAsync <T>(queryRequest));
}
/// <summary>
/// Prepare an ad-hoc N1QL statement for later execution against a Couchbase Server.
/// </summary>
/// <param name="toPrepare">The <see cref="IQueryRequest" /> containing a N1QL statement to be prepared.</param>
/// <returns>
/// A <see cref="IQueryResult{T}" /> containing the <see cref="QueryPlan" /> representing the reusable
/// and cachable execution plan for the statement.
/// </returns>
/// <remarks>
/// Most parameters in the IQueryRequest will be ignored, appart from the Statement and the BaseUri.
/// </remarks>
public IQueryResult<QueryPlan> Prepare(IQueryRequest toPrepare)
{
var statement = toPrepare.GetOriginalStatement();
if (!statement.ToUpper().StartsWith("PREPARE "))
{
statement = string.Concat("PREPARE ", statement);
}
var query = new QueryRequest(statement);
query.BaseUri(toPrepare.GetBaseUri());
return ExecuteQuery<QueryPlan>(query);
}
/// <summary>
/// Prepare an ad-hoc N1QL statement for later execution against a Couchbase Server asynchronously
/// </summary>
/// <param name="toPrepare">The <see cref="IQueryRequest" /> containing a N1QL statement to be prepared.</param>
/// <param name="cancellationToken">Token which can cancel the query.</param>
/// <returns>
/// A <see cref="IQueryResult{T}" /> containing the <see cref="QueryPlan" /> representing the reusable
/// and cachable execution plan for the statement.
/// </returns>
/// <remarks>
/// Most parameters in the IQueryRequest will be ignored, appart from the Statement and the BaseUri.
/// </remarks>
public async Task<IQueryResult<QueryPlan>> PrepareAsync(IQueryRequest toPrepare, CancellationToken cancellationToken)
{
var statement = toPrepare.GetOriginalStatement();
if (!statement.ToUpper().StartsWith("PREPARE "))
{
statement = string.Concat("PREPARE ", statement);
}
var query = new QueryRequest(statement);
query.BaseUri(toPrepare.GetBaseUri());
return await ExecuteQueryAsync<QueryPlan>(query, cancellationToken).ContinueOnAnyContext();
}
/// <summary>
/// Prepare an ad-hoc N1QL statement for later execution against a Couchbase Server asynchronously
/// </summary>
/// <param name="toPrepare">The <see cref="IQueryRequest" /> containing a N1QL statement to be prepared.</param>
/// <returns>
/// A <see cref="IQueryResult{T}" /> containing the <see cref="QueryPlan" /> representing the reusable
/// and cachable execution plan for the statement.
/// </returns>
/// <remarks>
/// Most parameters in the IQueryRequest will be ignored, appart from the Statement and the BaseUri.
/// </remarks>
public async Task <IQueryResult <QueryPlan> > PrepareAsync(IQueryRequest toPrepare)
{
var statement = toPrepare.GetStatement();
if (!statement.ToUpper().StartsWith("PREPARE "))
{
statement = string.Concat("PREPARE ", statement);
}
var query = new QueryRequest(statement);
query.BaseUri(toPrepare.GetBaseUri());
return(await ExecuteQueryAsync <QueryPlan>(query));
}
/// <summary>
/// Executes the <see cref="IQueryRequest"/> using HTTP POST to the Couchbase Server.
/// </summary>
/// <typeparam name="T">The <see cref="Type"/> of each row returned by the query.</typeparam>
/// <param name="queryRequest">The query request.</param>
/// <returns></returns>
/// <remarks>The format for the querying is JSON</remarks>
IQueryResult <T> ExecuteQuery <T>(IQueryRequest queryRequest)
{
var queryResult = new QueryResult <T>();
try
{
var request = WebRequest.Create(queryRequest.GetBaseUri());
request.Timeout = (int)_clientConfig.QueryRequestTimeout;
request.Method = "POST";
request.ContentType = "application/json";
var json = queryRequest.GetFormValuesAsJson();
var bytes = System.Text.Encoding.UTF8.GetBytes(json);
request.ContentLength = bytes.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(bytes, 0, bytes.Length);
}
var response = request.GetResponse();
using (var stream = response.GetResponseStream())
{
queryResult = DataMapper.Map <QueryResult <T> >(stream);
queryResult.Success = queryResult.Status == QueryStatus.Success;
}
}
catch (WebException e)
{
if (e.Response != null)
{
var stream = e.Response.GetResponseStream();
queryResult = DataMapper.Map <QueryResult <T> >(stream);
queryResult.HttpStatusCode = ((HttpWebResponse)e.Response).StatusCode;
}
queryResult.Exception = e;
Log.Error(e);
}
catch (Exception e)
{
ProcessError(e, queryResult);
Log.Error(e);
}
return(queryResult);
}
IQueryResult <T> Post <T>(IQueryRequest queryRequest)
{
var queryResult = new QueryResult <T>();
try
{
var request = WebRequest.Create(queryRequest.GetBaseUri());
request.Timeout = _clientConfig.ViewRequestTimeout;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
var bytes = System.Text.Encoding.UTF8.GetBytes(queryRequest.GetQueryParameters());
request.ContentLength = bytes.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(bytes, 0, bytes.Length);
}
var response = request.GetResponse();
using (var stream = response.GetResponseStream())
{
queryResult = DataMapper.Map <QueryResult <T> >(stream);
queryResult.Success = queryResult.Status == QueryStatus.Success;
}
}
catch (WebException e)
{
if (e.Response != null)
{
var stream = e.Response.GetResponseStream();
queryResult = DataMapper.Map <QueryResult <T> >(stream);
}
queryResult.Exception = e;
Log.Error(e);
}
catch (Exception e)
{
ProcessError(e, queryResult);
Log.Error(e);
}
return(queryResult);
}
/// <summary>
/// Sends a request for a N1QL query to the server asynchronously.
/// </summary>
/// <typeparam name="T">The <see cref="Type" /> T of the body for each row (or document) result.</typeparam>
/// <param name="queryRequest">A <see cref="IQueryRequest" /> object.</param>
/// <returns>
/// An <see cref="Task{IQueryResult}" /> object representing the asynchronous operation.
/// </returns>
IQueryResult <T> IServer.Send <T>(IQueryRequest queryRequest)
{
IQueryResult <T> result;
try
{
if (queryRequest.GetBaseUri() == null)
{
var uri = new Uri(GetBaseQueryUri());
queryRequest.BaseUri(uri);
}
result = QueryClient.Query <T>(queryRequest);
}
catch (Exception e)
{
result = new QueryResult <T>
{
Exception = e,
Message = e.Message,
Success = false,
};
}
return(result);
}
