public TResult Execute <TResult>(Expression expression)
{
Type itemType = TypeHelper.GetElementType(expression.Type);
var translator = new ExpressionToFTSRequestTranslator();
string queryString = translator.Translate(expression);
return((TResult)_e3sClient.SearchFTS(itemType, queryString));
}
public void TestContains()
{
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <EmployeeEntity, bool> > expression
= employee => employee.Workstation.Contains("IZHW006");
string translated = translator.Translate(expression);
Assert.AreEqual("Workstation:(*IZHW006*)", translated);
}
public void TestBinaryEquals()
{
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <EmployeeEntity, bool> > expression
= employee => employee.Workstation == "EPRUIZHW006";
string translated = translator.Translate(expression);
Assert.AreEqual("Workstation:(EPRUIZHW006)", translated);
}
public void TestBinaryEqualsQueryable()
{
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <IQueryable <EmployeeEntity>, IQueryable <EmployeeEntity> > > expression
= query => query.Where(e => e.Workstation == "EPRUIZHW006");
string translated = translator.Translate(expression);
Assert.AreEqual("Workstation:(EPRUIZHW006)", translated);
}
public void Where_Contains()
{
//arrange
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <EmployeeEntity, bool> > expr = c => c.workstation.Contains("BYMINW613");
var expected = "workstation:(*BYMINW613*)";
// Act
var actual = translator.Translate(expr);
//Assert
Assert.AreEqual(expected, actual);
}
public void When_Use_Provider()
{
//arrange
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <EmployeeEntity, bool> > expr = c => c.workstation == "EPBYMINW6137";
var expected = "workstation:(EPBYMINW6137)";
// Act
var actual = translator.Translate(expr);
//Assert
Assert.AreEqual(expected, actual);
}
public void When_Use_And_Operator()
{
//arrange
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <EmployeeEntity, bool> > expr = c => c.workstation.StartsWith("EPBYMINW613") && c.superior.Contains("Bakunovich");
var expected = "workstation:(EPBYMINW613*) AND superior:(*Bakunovich*)";
// Act
var actual = translator.Translate(expr);
//Assert
Assert.AreEqual(expected, actual);
}
public void TestAndQueryable()
{
var translator = new ExpressionToFTSRequestTranslator();
Expression <Func <IQueryable <EmployeeEntity>, IQueryable <EmployeeEntity> > > expression
= query => query.Where(e => e.Workstation == "EPRUIZHW006" && e.Manager.StartsWith("John"));
/*
* The expression above should be converted to the following FTSQueryRequest and then serialized inside FTSRequestGenerator:
* "statements": [
* { "query":"Workstation:(EPRUIZHW006)"},
* { "query":"Manager:(John*)"}
* // Operator between queries is AND, in other words result set will fit to both statements above
* ],
*/
string translated = translator.Translate(expression);
string expected = "Workstation:(EPRUIZHW006),Manager:(John*)";
Assert.AreEqual(expected, translated);
}
