public FluentResults.Result <string> QueryWithVars(string queryString, Dictionary <string, string> varMap)
{
AssertNotDisposed();
if (transactionState != TransactionState.OK)
{
return(Results.Fail <string>(new TransactionFinished(transactionState.ToString())));
}
try {
Api.Request request = new Api.Request();
request.Query = queryString;
request.Vars.Add(varMap);
request.StartTs = context.StartTs;
request.LinRead = context.LinRead;
lastQueryResponse = client.Query(request);
var err = MergeContext(lastQueryResponse.Txn);
if (err.IsSuccess)
{
return(Results.Ok <string>(lastQueryResponse.Json.ToStringUtf8()));
}
else
{
return(err.ConvertToResultWithValueType <string>());
}
} catch (RpcException rpcEx) {
return(Results.Fail <string>(new FluentResults.ExceptionalError(rpcEx)));
}
}
public async Task <FluentResults.Result <string> > QueryWithVars(string queryString, Dictionary <string, string> varMap)
{
AssertNotDisposed();
if (TransactionState != TransactionState.OK)
{
return(Results.Fail <string>(new TransactionFinished(TransactionState.ToString())));
}
try {
Api.Request request = new Api.Request();
request.Query = queryString;
request.Vars.Add(varMap);
request.StartTs = Context.StartTs;
var queryResponse = await Client.Query(request);
var err = MergeContext(queryResponse.Txn);
if (err.IsSuccess)
{
return(Results.Ok <string>(queryResponse.Json.ToStringUtf8()));
}
else
{
return(err.ToResult <string>());
}
} catch (RpcException rpcEx) {
return(Results.Fail <string>(new FluentResults.ExceptionalError(rpcEx)));
}
}
public async Task <FluentResults.Result <Response> > QueryWithVars(
string queryString,
Dictionary <string, string> varMap,
CallOptions?options = null
)
{
AssertNotDisposed();
if (TransactionState != TransactionState.OK)
{
return(Results.Fail <Response>(
new TransactionNotOK(TransactionState.ToString())));
}
try {
Api.Request request = new Api.Request();
request.Query = queryString;
request.Vars.Add(varMap);
request.StartTs = Context.StartTs;
request.Hash = Context.Hash;
request.ReadOnly = ReadOnly;
request.BestEffort = BestEffort;
var response = await Client.DgraphExecute(
async (dg) =>
Results.Ok <Response>(
new Response(await dg.QueryAsync(
request,
options ?? new CallOptions(null, null, default(CancellationToken)))
)),
(rpcEx) =>
Results.Fail <Response>(new FluentResults.ExceptionalError(rpcEx))
);
if (response.IsFailed)
{
return(response);
}
var err = MergeContext(response.Value.DgraphResponse.Txn);
if (err.IsSuccess)
{
return(response);
}
else
{
return(err.ToResult <Response>());
}
} catch (Exception ex) {
return(Results.Fail <Response>(new FluentResults.ExceptionalError(ex)));
}
}
internal async Task <FluentResults.Result <IDictionary <string, string> > > Mutate(Api.Mutation mutation)
{
AssertNotDisposed();
if (TransactionState != TransactionState.OK)
{
return(Results.Fail <IDictionary <string, string> >(new TransactionFinished(TransactionState.ToString())));
}
if (mutation.Del.Count == 0 &&
mutation.DeleteJson.Length == 0 &&
mutation.Set.Count == 0 &&
mutation.SetJson.Length == 0)
{
return(Results.Ok <IDictionary <string, string> >(new Dictionary <string, string>()));
}
HasMutated = true;
try {
Api.Request req = new Api.Request();
req.Mutations.Add(mutation);
req.StartTs = Context.StartTs;
var response = await Client.Mutate(req);
if (mutation.CommitNow)
{
TransactionState = TransactionState.Committed;
}
var err = MergeContext(response.Txn);
if (err.IsFailed)
{
return(err.ToResult <IDictionary <string, string> >());
}
return(Results.Ok <IDictionary <string, string> >(response.Uids));
} catch (RpcException rpcEx) {
// From Dgraph code txn.go
//
// Since a mutation error occurred, the txn should no longer be used
// (some mutations could have applied but not others, but we don't know
// which ones). Discarding the transaction enforces that the user
// cannot use the txn further.
await Discard(); // Ignore error - user should see the original error.
TransactionState = TransactionState.Error; // overwrite the aborted value
return(Results.Fail <IDictionary <string, string> >(new FluentResults.ExceptionalError(rpcEx)));
}
}
public override void Start(CancellationToken token)
{
try {
base.Start(token);
using (var abort = token.Register(Thread.CurrentThread.Abort)) {
while (true) {
var command = Console.ReadLine();
var message = new Request(Sender, command);
Manager.Process(this, message);
}
}
}
catch (ThreadAbortException) {
//It is OK.
}
finally {
Finish();
}
}
internal Response Query(Api.Request req)
{
AssertNotDisposed();
return(connections.Values.ElementAt(rnd.Next(connections.Count)).Query(req));
}
public async Task <Response> Query(Api.Request req)
{
AssertNotDisposed();
return(await connections[GetNextConnection()].Query(req));
}
public async Task <Response> Query(Api.Request req)
{
AssertNotDisposed();
return(await connection.QueryAsync(req));
}
public async Task <Response> Mutate(Api.Request mut)
{
AssertNotDisposed();
return(await connection.QueryAsync(mut));
}
public Response Query(Api.Request req)
{
AssertNotDisposed();
return(connection.Query(req));
}
public override void Process(Request request, Response response)
{
base.Process(request, response);
Console.WriteLine(response.Info);
}
public async Task <Response> Mutate(Api.Request mut)
{
AssertNotDisposed();
return(await connections[GetNextConnection()].Mutate(mut));
}
/// <summary>
/// Process the response.
/// </summary>
/// <param name="request">Initial request.</param>
/// <param name="response">Processed response.</param>
/// <summary>It will not be called, if response is null or empty</summary>
public virtual void Process(Request request, Response response)
{
}
