//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testMultipleCreate() throws InterruptedException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void TestMultipleCreate()
{
const int numThreads = 25;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final String uuid = java.util.UUID.randomUUID().toString();
string uuid = System.Guid.randomUUID().ToString();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.graphdb.Node commonNode;
Node commonNode;
using (Transaction tx = _graphDb.beginTx())
{
commonNode = _graphDb.createNode();
tx.Success();
}
ExecutorCompletionService <Node> ecs = new ExecutorCompletionService <Node>(Executors.newFixedThreadPool(numThreads));
for (int i = 0; i < numThreads; i++)
{
ecs.submit(() =>
{
using (Transaction tx = _graphDb.beginTx())
{
Node node = _graphDb.createNode();
// Acquire lock
tx.AcquireWriteLock(commonNode);
Index <Node> index = _graphDb.index().forNodes("uuids");
Node existing = index.get("uuid", uuid).Single;
if (existing != null)
{
throw new Exception("Node already exists");
}
node.setProperty("uuid", uuid);
index.add(node, "uuid", uuid);
tx.Success();
return(node);
}
});
}
int numSucceeded = 0;
for (int i = 0; i < numThreads; i++)
{
try
{
ecs.take().get();
++numSucceeded;
}
catch (ExecutionException)
{
}
}
assertEquals(1, numSucceeded);
}
internal QueueingFuture(ExecutorCompletionService <V> outerInstance, RunnableFuture <V> task) : base(task, null)
{
this.OuterInstance = outerInstance;
this.Task = task;
}
