//-------------------------------------------------------------------------
/// <summary>
/// Test a private no-arg constructor the primary purpose of increasing test coverage.
/// </summary>
/// <param name="clazz"> the class to test </param>
public static void coverPrivateConstructor(Type clazz)
{
assertNotNull(clazz, "coverPrivateConstructor() called with null class");
AtomicBoolean isPrivate = new AtomicBoolean(false);
ignoreThrows(() =>
{
System.Reflection.ConstructorInfo <object> con = clazz.DeclaredConstructor;
isPrivate.set(Modifier.isPrivate(con.Modifiers));
con.Accessible = true;
con.newInstance();
});
assertTrue(isPrivate.get(), "No-arg constructor must be private");
}
public static object instantiate(string className, object[] args)
{
Type clazz = loadClass(className);
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: Constructor<?> constructor = findMatchingConstructor(clazz, args);
System.Reflection.ConstructorInfo <object> constructor = findMatchingConstructor(clazz, args);
ensureNotNull("couldn't find constructor for " + className + " with args " + Arrays.asList(args), "constructor", constructor);
try
{
return(constructor.newInstance(args));
}
catch (Exception e)
{
throw LOG.exceptionWhileInstantiatingClass(className, e);
}
}
//-------------------------------------------------------------------------
/// <summary>
/// Asserts that a class is a well-defined utility class.
/// <para>
/// Must be final and with one zero-arg private constructor.
/// All public methods must be static.
///
/// </para>
/// </summary>
/// <param name="clazz"> the class to test </param>
public static void assertUtilityClass(Type clazz)
{
assertNotNull(clazz, "assertUtilityClass() called with null class");
assertTrue(Modifier.isFinal(clazz.Modifiers), "Utility class must be final");
assertEquals(clazz.GetConstructors(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance).length, 1, "Utility class must have one constructor");
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: Constructor<?> con = clazz.getDeclaredConstructors()[0];
System.Reflection.ConstructorInfo <object> con = clazz.GetConstructors(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance)[0];
assertEquals(con.ParameterTypes.length, 0, "Utility class must have zero-arg constructor");
assertTrue(Modifier.isPrivate(con.Modifiers), "Utility class must have private constructor");
foreach (System.Reflection.MethodInfo method in clazz.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance))
{
if (Modifier.isPublic(method.Modifiers))
{
assertTrue(Modifier.isStatic(method.Modifiers), "Utility class public methods must be static");
}
}
// coverage
ignoreThrows(() =>
{
con.Accessible = true;
con.newInstance();
});
}
// parses the alternate names
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") private static <R extends Named> com.google.common.collect.ImmutableList<NamedLookup<R>> parseProviders(com.opengamma.strata.collect.io.IniFile config, Class<R> enumType)
private static ImmutableList <NamedLookup <R> > parseProviders <R>(IniFile config, Type <R> enumType) where R : Named
{
if (!config.contains(PROVIDERS_SECTION))
{
return(ImmutableList.of());
}
PropertySet section = config.section(PROVIDERS_SECTION);
ImmutableList.Builder <NamedLookup <R> > builder = ImmutableList.builder();
foreach (string key in section.keys())
{
Type cls;
try
{
cls = RenameHandler.INSTANCE.lookupType(key);
}
catch (Exception ex)
{
throw new System.ArgumentException("Unable to find enum provider class: " + key, ex);
}
string value = section.value(key);
if (value.Equals("constants"))
{
// extract public static final constants
builder.add(parseConstants(enumType, cls));
}
else if (value.Equals("lookup"))
{
// class is a named lookup
if (!cls.IsAssignableFrom(typeof(NamedLookup)))
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new System.ArgumentException("Enum provider class must implement NamedLookup " + cls.FullName);
}
try
{
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: Constructor<?> cons = cls.getDeclaredConstructor();
System.Reflection.ConstructorInfo <object> cons = cls.DeclaredConstructor;
if (!Modifier.isPublic(cls.Modifiers))
{
cons.Accessible = true;
}
builder.add((NamedLookup <R>)cons.newInstance());
}
catch (Exception ex)
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new System.ArgumentException("Invalid enum provider constructor: new " + cls.FullName + "()", ex);
}
}
else if (value.Equals("instance"))
{
// class has a named lookup INSTANCE static field
try
{
System.Reflection.FieldInfo field = cls.getDeclaredField("INSTANCE");
if (!Modifier.isStatic(field.Modifiers) || !field.Type.IsAssignableFrom(typeof(NamedLookup)))
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new System.ArgumentException("Invalid enum provider instance: " + cls.FullName + ".INSTANCE");
}
if (!Modifier.isPublic(cls.Modifiers) || !Modifier.isPublic(field.Modifiers))
{
field.Accessible = true;
}
builder.add((NamedLookup <R>)field.get(null));
}
catch (Exception ex)
{
//JAVA TO C# CONVERTER WARNING: The .NET Type.FullName property will not always yield results identical to the Java Class.getName method:
throw new System.ArgumentException("Invalid enum provider instance: " + cls.FullName + ".INSTANCE", ex);
}
}
else
{
throw new System.ArgumentException("Provider value must be either 'constants' or 'lookup'");
}
}
return(builder.build());
}
