/// <summary>
/// Handles continuous query events.
/// </summary>
private void HandleContinuousQueryEvents(IBinaryStream stream, Exception err,
ICacheEntryEventListener <TK, TV> listener, ClientContinuousQueryHandle qryHandle)
{
if (err != null)
{
qryHandle.OnError(err);
return;
}
var flags = (ClientFlags)stream.ReadShort();
var opCode = (ClientOp)stream.ReadShort();
if ((flags & ClientFlags.Error) == ClientFlags.Error)
{
var status = (ClientStatusCode)stream.ReadInt();
var msg = _marsh.Unmarshal <string>(stream);
GetLogger().Error("Error while handling Continuous Query notification ({0}): {1}", status, msg);
qryHandle.OnError(new IgniteClientException(msg, null, status));
return;
}
if (opCode == ClientOp.QueryContinuousEventNotification)
{
var evts = ContinuousQueryUtils.ReadEvents <TK, TV>(stream, _marsh, _keepBinary);
listener.OnEvent(evts);
return;
}
GetLogger().Error("Error while handling Continuous Query notification: unexpected op '{0}'", opCode);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="qry">Query.</param>
/// <param name="marsh">Marshaller.</param>
/// <param name="keepPortable">Keep portable flag.</param>
public ContinuousQueryHandleImpl(ContinuousQuery <TK, TV> qry, PortableMarshaller marsh, bool keepPortable)
{
_marsh = marsh;
_keepPortable = keepPortable;
_lsnr = qry.Listener;
_filter = qry.Filter;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="qry">Query.</param>
/// <param name="marsh">Marshaller.</param>
/// <param name="keepBinary">Keep binary flag.</param>
public ContinuousQueryHandleImpl(ContinuousQuery <TK, TV> qry, Marshaller marsh, bool keepBinary)
{
_marsh = marsh;
_keepBinary = keepBinary;
_lsnr = qry.Listener;
_filter = qry.Filter;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="lsnr">Listener.</param>
/// <param name="filter">Filter.</param>
/// <param name="loc">Whether query should be executed locally.</param>
public ContinuousQuery(ICacheEntryEventListener <TK, TV> lsnr, ICacheEntryEventFilter <TK, TV> filter, bool loc)
{
Listener = lsnr;
Filter = filter;
Local = loc;
BufferSize = DfltBufSize;
TimeInterval = DfltTimeInterval;
AutoUnsubscribe = DfltAutoUnsubscribe;
}
/// <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, IQueryBaseInternal 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(qry.IncludeExpired);
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.
_nativeInitialQueryCursor = _nativeQry.OutObjectInternal(0);
_initialQueryIsFields = initialQry is SqlFieldsQuery;
}
catch (Exception)
{
if (_hnd > 0)
{
_marsh.Ignite.HandleRegistry.Release(_hnd);
}
if (_nativeQry != null)
{
_nativeQry.Dispose();
}
if (_nativeInitialQueryCursor != null)
{
_nativeInitialQueryCursor.Dispose();
}
throw;
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="lsnr">Listener.</param>
/// <param name="filter">Filter.</param>
public ContinuousQuery(ICacheEntryEventListener <TK, TV> lsnr, ICacheEntryEventFilter <TK, TV> filter)
: this(lsnr, filter, false)
{
// No-op.
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="lsnr">Listener.</param>
/// <param name="loc">Whether query should be executed locally.</param>
public ContinuousQuery(ICacheEntryEventListener <TK, TV> lsnr, bool loc) : this(lsnr, null, loc)
{
// No-op.
}