/// <summary>
/// QueryContinuous implementation.
/// </summary>
private IContinuousQueryHandle <ICacheEntry <TK, TV> > QueryContinuousImpl(ContinuousQuery <TK, TV> qry,
QueryBase initialQry)
{
qry.Validate();
var hnd = new ContinuousQueryHandleImpl <TK, TV>(qry, Marshaller, _flagKeepPortable);
using (var stream = IgniteManager.Memory.Allocate().Stream())
{
var writer = Marshaller.StartMarshal(stream);
hnd.Start(_ignite, writer, () =>
{
if (initialQry != null)
{
writer.WriteInt((int)initialQry.OpId);
initialQry.Write(writer, KeepPortable);
}
else
{
writer.WriteInt(-1); // no initial query
}
FinishMarshal(writer);
// ReSharper disable once AccessToDisposedClosure
return(UU.CacheOutOpContinuousQuery(Target, (int)CacheOp.QryContinuous, stream.SynchronizeOutput()));
}, qry);
}
return(hnd);
}
/** <inheritDoc /> */
public IQueryCursor <ICacheEntry <TK, TV> > Query(QueryBase qry)
{
IgniteArgumentCheck.NotNull(qry, "qry");
var cursor = DoOutOpObject((int)qry.OpId, writer => qry.Write(writer, IsKeepBinary));
return(new QueryCursor <TK, TV>(cursor, _flagKeepBinary));
}
/** <inheritDoc /> */
public IQueryCursor <ICacheEntry <TK, TV> > Query(QueryBase qry)
{
IgniteArgumentCheck.NotNull(qry, "qry");
IUnmanagedTarget cursor;
using (var stream = IgniteManager.Memory.Allocate().GetStream())
{
var writer = Marshaller.StartMarshal(stream);
qry.Write(writer, IsKeepBinary);
FinishMarshal(writer);
cursor = UU.CacheOutOpQueryCursor(Target, (int)qry.OpId, stream.SynchronizeOutput());
}
return(new QueryCursor <TK, TV>(cursor, Marshaller, _flagKeepBinary));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="qry">Query.</param>
/// <param name="marsh">Marshaller.</param>
/// <param name="keepBinary">Keep binary flag.</param>
/// <param name="createTargetCb">The initialization callback.</param>
/// <param name="initialQry">The initial query.</param>
public ContinuousQueryHandleImpl(ContinuousQuery <TK, TV> qry, Marshaller marsh, bool keepBinary,
Func <Action <BinaryWriter>, IPlatformTargetInternal> createTargetCb, QueryBase initialQry)
{
_marsh = marsh;
_keepBinary = keepBinary;
_lsnr = qry.Listener;
_filter = qry.Filter;
// 1. Inject resources.
ResourceProcessor.Inject(_lsnr, _marsh.Ignite);
ResourceProcessor.Inject(_filter, _marsh.Ignite);
try
{
// 2. Allocate handle.
_hnd = _marsh.Ignite.HandleRegistry.Allocate(this);
// 3. Call Java.
_nativeQry = createTargetCb(writer =>
{
writer.WriteLong(_hnd);
writer.WriteBoolean(qry.Local);
writer.WriteBoolean(_filter != null);
var javaFilter = _filter as PlatformJavaObjectFactoryProxy;
if (javaFilter != null)
{
writer.WriteObject(javaFilter.GetRawProxy());
}
else
{
var filterHolder = _filter == null || qry.Local
? null
: new ContinuousQueryFilterHolder(_filter, _keepBinary);
writer.WriteObject(filterHolder);
}
writer.WriteInt(qry.BufferSize);
writer.WriteLong((long)qry.TimeInterval.TotalMilliseconds);
writer.WriteBoolean(qry.AutoUnsubscribe);
if (initialQry != null)
{
writer.WriteInt((int)initialQry.OpId);
initialQry.Write(writer, _keepBinary);
}
else
{
writer.WriteInt(-1); // no initial query
}
});
// 4. Initial query.
var nativeInitialQryCur = _nativeQry.OutObjectInternal(0);
_initialQueryCursor = nativeInitialQryCur == null
? null
: new QueryCursor <TK, TV>(nativeInitialQryCur, _keepBinary);
}
catch (Exception)
{
if (_hnd > 0)
{
_marsh.Ignite.HandleRegistry.Release(_hnd);
}
if (_nativeQry != null)
{
_nativeQry.Dispose();
}
if (_initialQueryCursor != null)
{
_initialQueryCursor.Dispose();
}
throw;
}
}
