public void TestHashSegmentedMulti()
{
var ctx = "HashSegmentedContext";
var eplCtx = "@Name('context') create context " + ctx + " as " +
"coalesce " +
" Consistent_hash_crc32(TheString) from SupportBean, " +
" Consistent_hash_crc32(p00) from SupportBean_S0 " +
"granularity 4 " +
"preallocate";
_epService.EPAdministrator.CreateEPL(eplCtx);
var codeFunc = new SupportHashCodeFuncGranularCRC32(4);
var eplStmt = "context " + ctx + " " +
"select context.name as c0, IntPrimitive as c1, id as c2 from SupportBean.win:keepall() as t1, SupportBean_S0.win:keepall() as t2 where t1.TheString = t2.p00";
var statement = (EPStatementSPI)_epService.EPAdministrator.CreateEPL(eplStmt);
statement.Events += _listener.Update;
var fields = "c0,c1,c2".Split(',');
_epService.EPRuntime.SendEvent(new SupportBean("E1", 10));
_epService.EPRuntime.SendEvent(new SupportBean_S0(1, "E2"));
_epService.EPRuntime.SendEvent(new SupportBean("E3", 11));
_epService.EPRuntime.SendEvent(new SupportBean_S0(2, "E4"));
Assert.IsFalse(_listener.IsInvoked);
_epService.EPRuntime.SendEvent(new SupportBean_S0(3, "E1"));
EPAssertionUtil.AssertProps(_listener.AssertOneGetNewAndReset(), fields, new Object[] { ctx, 10, 3 });
AssertIterator(statement, fields, new Object[][] { new Object[] { ctx, 10, 3 } });
_epService.EPRuntime.SendEvent(new SupportBean_S0(4, "E4"));
_epService.EPRuntime.SendEvent(new SupportBean_S0(5, "E5"));
Assert.IsFalse(_listener.IsInvoked);
_epService.EPRuntime.SendEvent(new SupportBean("E2", 12));
EPAssertionUtil.AssertProps(_listener.AssertOneGetNewAndReset(), fields, new Object[] { ctx, 12, 1 });
AssertIterator(statement, fields, new Object[][] { new Object[] { ctx, 10, 3 }, new Object[] { ctx, 12, 1 } });
}
private void RunAssertionHashSegmented(EPServiceProvider epService)
{
// Comment-in to see CRC32 code.
for (int i = 0; i < 10; i++)
{
string key = "E" + i;
long code = SupportHashCodeFuncGranularCRC32.ComputeCrc32(key) % 4;
int hashCode = i.GetHashCode() % 4;
//Log.Info(key + " code " + code + " hashCode " + hashCode);
}
// test CRC32 Hash
FilterServiceSPI filterSPI = (FilterServiceSPI)((EPServiceProviderSPI)epService).FilterService;
string ctx = "HashSegmentedContext";
string eplCtx = "@Name('context') create context " + ctx + " as " +
"coalesce consistent_hash_crc32(TheString) from SupportBean " +
"granularity 4 " +
"preallocate";
epService.EPAdministrator.CreateEPL(eplCtx);
string eplStmt = "context " + ctx + " " +
"select context.name as c0, TheString as c1, sum(IntPrimitive) as c2 from SupportBean#keepall group by TheString";
EPStatementSPI statement = (EPStatementSPI)epService.EPAdministrator.CreateEPL(eplStmt);
var listener = new SupportUpdateListener();
statement.Events += listener.Update;
Assert.AreEqual(4, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 4, 0, 0, 0);
TryAssertionHash(epService, listener, ctx, statement, new SupportHashCodeFuncGranularCRC32(4).CodeFor);
Assert.AreEqual(0, filterSPI.FilterCountApprox);
// test same with SODA
EPStatementObjectModel modelCtx = epService.EPAdministrator.CompileEPL(eplCtx);
Assert.AreEqual(eplCtx, modelCtx.ToEPL());
EPStatement stmtCtx = epService.EPAdministrator.Create(modelCtx);
Assert.AreEqual(eplCtx, stmtCtx.Text);
statement = (EPStatementSPI)epService.EPAdministrator.CreateEPL(eplStmt);
statement.Events += listener.Update;
TryAssertionHash(epService, listener, ctx, statement, new SupportHashCodeFuncGranularCRC32(4).CodeFor);
// test with Java-hashCode string hash
epService.EPAdministrator.CreateEPL("@Name('context') create context " + ctx + " " +
"coalesce hash_code(TheString) from SupportBean " +
"granularity 6 " +
"preallocate");
statement = (EPStatementSPI)epService.EPAdministrator.CreateEPL("context " + ctx + " " +
"select context.name as c0, TheString as c1, sum(IntPrimitive) as c2 from SupportBean#keepall group by TheString");
statement.Events += listener.Update;
Assert.AreEqual(6, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 6, 0, 0, 0);
TryAssertionHash(epService, listener, ctx, statement, HashCodeFuncGranularInternalHash(6));
Assert.AreEqual(0, filterSPI.FilterCountApprox);
// test no pre-allocate
epService.EPAdministrator.CreateEPL("@Name('context') create context " + ctx + " " +
"coalesce hash_code(TheString) from SupportBean " +
"granularity 16 ");
statement = (EPStatementSPI)epService.EPAdministrator.CreateEPL("context " + ctx + " " +
"select context.name as c0, TheString as c1, sum(IntPrimitive) as c2 from SupportBean#keepall group by TheString");
statement.Events += listener.Update;
Assert.AreEqual(1, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 0, 0, 0, 0);
TryAssertionHash(epService, listener, ctx, statement, HashCodeFuncGranularInternalHash(16));
Assert.AreEqual(0, filterSPI.FilterCountApprox);
}
public void TestHashSegmented()
{
// Comment-in to see CRC32 code.
for (var i = 0; i < 10; i++)
{
var key = "E" + i;
var code = SupportHashCodeFuncGranularCRC32.ComputeCRC32(key) % 4;
var hashCode = i.GetHashCode() % 4;
//Console.WriteLine(key + " code " + code + " hashCode " + hashCode);
}
// test CRC32 Hash
var filterSPI = (FilterServiceSPI)_spi.FilterService;
var ctx = "HashSegmentedContext";
var eplCtx = "@Name('context') create context " + ctx + " as " +
"coalesce Consistent_hash_crc32(TheString) from SupportBean " +
"granularity 4 " +
"preallocate";
_epService.EPAdministrator.CreateEPL(eplCtx);
var eplStmt = "context " + ctx + " " +
"select context.name as c0, TheString as c1, Sum(IntPrimitive) as c2 from SupportBean.win:keepall() group by TheString";
var statement = (EPStatementSPI)_epService.EPAdministrator.CreateEPL(eplStmt);
statement.Events += _listener.Update;
Assert.AreEqual(4, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 4, 0, 0, 0);
RunAssertionHash(ctx, statement, new SupportHashCodeFuncGranularCRC32(4));
Assert.AreEqual(0, filterSPI.FilterCountApprox);
// test same with SODA
var modelCtx = _epService.EPAdministrator.CompileEPL(eplCtx);
Assert.AreEqual(eplCtx, modelCtx.ToEPL());
var stmtCtx = _epService.EPAdministrator.Create(modelCtx);
Assert.AreEqual(eplCtx, stmtCtx.Text);
statement = (EPStatementSPI)_epService.EPAdministrator.CreateEPL(eplStmt);
statement.Events += _listener.Update;
RunAssertionHash(ctx, statement, new SupportHashCodeFuncGranularCRC32(4));
// test with GetHashCode String hash
_epService.EPAdministrator.CreateEPL("@Name('context') create context " + ctx + " " +
"coalesce Hash_code(TheString) from SupportBean " +
"granularity 6 " +
"preallocate");
statement = (EPStatementSPI)_epService.EPAdministrator.CreateEPL("context " + ctx + " " +
"select context.name as c0, TheString as c1, Sum(IntPrimitive) as c2 from SupportBean.win:keepall() group by TheString");
statement.Events += _listener.Update;
Assert.AreEqual(6, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 6, 0, 0, 0);
RunAssertionHash(ctx, statement, new HashCodeFuncGranularInternalHash(6));
Assert.AreEqual(0, filterSPI.FilterCountApprox);
// test no pre-allocate
_epService.EPAdministrator.CreateEPL("@Name('context') create context " + ctx + " " +
"coalesce Hash_code(TheString) from SupportBean " +
"granularity 16 ");
statement = (EPStatementSPI)_epService.EPAdministrator.CreateEPL("context " + ctx + " " +
"select context.name as c0, TheString as c1, Sum(IntPrimitive) as c2 from SupportBean.win:keepall() group by TheString");
statement.Events += _listener.Update;
Assert.AreEqual(1, filterSPI.FilterCountApprox);
AgentInstanceAssertionUtil.AssertInstanceCounts(statement.StatementContext, 0, 0, 0, 0);
RunAssertionHash(ctx, statement, new HashCodeFuncGranularInternalHash(16));
Assert.AreEqual(0, filterSPI.FilterCountApprox);
}