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CypherExecutionPolicy.cs
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CypherExecutionPolicy.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using Neo4jClient.ApiModels.Cypher;
using Neo4jClient.Cypher;
using Neo4jClient.Transactions;
namespace Neo4jClient.Execution
{
/// <summary>
/// Describes the behavior for a cypher execution.
/// </summary>
internal partial class CypherExecutionPolicy : GraphClientBasedExecutionPolicy
{
private INeo4jTransaction GetTransactionInScope()
{
// first try to get the Non DTC transaction and if it doesn't succeed then try it with the DTC
var transactionalClient = Client as IInternalTransactionalGraphClient<HttpResponseMessage>;
if (transactionalClient == null)
{
return null;
}
var proxiedTransaction = transactionalClient.Transaction as TransactionScopeProxy;
if (proxiedTransaction != null)
{
return proxiedTransaction.TransactionContext;;
}
var ambientTransaction = transactionalClient.TransactionManager.CurrentDtcTransaction;
if (ambientTransaction != null)
{
return (INeo4jTransaction) ambientTransaction;
}
return null;
}
public override Uri BaseEndpoint
{
get
{
if (!InTransaction)
{
return Client.CypherEndpoint;
}
var proxiedTransaction = GetTransactionInScope();
var transactionalClient = (ITransactionalGraphClient) Client;
if (proxiedTransaction == null)
{
return transactionalClient.TransactionEndpoint;
}
var startingReference = proxiedTransaction.Endpoint ?? transactionalClient.TransactionEndpoint;
return startingReference;
}
}
public override TransactionExecutionPolicy TransactionExecutionPolicy
{
get { return TransactionExecutionPolicy.Allowed; }
}
}
}