public ConfigurationRecognizer(PropertyInfo unrecognizedProperty)
{
_unrecognizedProperty = unrecognizedProperty ?? throw new ArgumentNullException(nameof(unrecognizedProperty));
_dictionaryType = ConfigurationUtility.GetImplementedContract(unrecognizedProperty.PropertyType, typeof(IDictionary <,>))?.GetTypeInfo();
if (_dictionaryType == null || _dictionaryType.GenericTypeArguments[0] != typeof(string))
{
throw new InvalidOperationException(string.Format(Properties.Resources.Error_InvalidUnrecognizedProperty, unrecognizedProperty.Name));
}
}
public bool Recognize(object target, IConfigurationSection configuration, ConfigurationBinderOptions options)
{
if (target == null)
{
return(false);
}
var unrecognizedProperty = _unrecognizedProperty;
var dictionary = Reflection.Reflector.GetValue(unrecognizedProperty, ref target);
if (dictionary == null)
{
if (!unrecognizedProperty.CanWrite)
{
throw new ConfigurationException($"The {unrecognizedProperty.Name} unrecognized property value is null and it is read-only.");
}
if (unrecognizedProperty.PropertyType.IsAbstract)
{
var dictionaryType = ConfigurationUtility.GetImplementedContract(unrecognizedProperty.PropertyType, typeof(IDictionary <,>))?.GetTypeInfo();
if (dictionaryType == null || dictionaryType.GenericTypeArguments[0] != typeof(string))
{
throw new InvalidOperationException(string.Format(Properties.Resources.Error_InvalidUnrecognizedProperty, unrecognizedProperty.Name));
}
dictionary = Activator.CreateInstance(typeof(Dictionary <,>).MakeGenericType(typeof(string), dictionaryType.GenericTypeArguments[1]), new object[] { StringComparer.OrdinalIgnoreCase });
}
else
{
dictionary = Activator.CreateInstance(unrecognizedProperty.PropertyType);
}
Reflection.Reflector.SetValue(unrecognizedProperty, ref target, dictionary);
}
this.SetDictionaryValue(dictionary, configuration);
return(true);
}
private bool ResolveCollection(object instance, IConfigurationSection configuration, IDictionary <string, PropertyToken> properties, ConfigurationBinderOptions options)
{
var dictionaryType = ConfigurationUtility.GetImplementedContract(instance.GetType(), typeof(IDictionary <,>));
if (dictionaryType != null)
{
object key = configuration.Key;
//如果字典键类型不是字符串并且配置键文本转换失败则抛出异常
if (dictionaryType.GenericTypeArguments[0] != typeof(string) && !Common.Convert.TryConvertValue(key, dictionaryType.GenericTypeArguments[0], out key))
{
throw new ConfigurationException($"Unable to convert the ‘{key}’ configuration key to a dictionary key type of ‘{dictionaryType.GenericTypeArguments[0].FullName}’ type.");
}
var valueType = dictionaryType.GenericTypeArguments[1];
var setter = dictionaryType.GetTypeInfo().GetDeclaredProperty("Item");
Reflection.Reflector.SetValue(setter, ref instance, this.Resolve(valueType, configuration, options), new object[] { key });
return(true);
}
var collectionType = ConfigurationUtility.GetImplementedContract(instance.GetType(), typeof(ICollection <>));
if (collectionType != null)
{
var valueType = collectionType.GenericTypeArguments[0];
var add = collectionType.GetTypeInfo().GetDeclaredMethod("Add");
add.Invoke(instance, new object[] { this.Resolve(valueType, configuration, options) });
return(true);
}
//返回失败
return(false);
}
protected virtual object CreateInstance(Type type)
{
if (type.IsArray)
{
if (type.GetArrayRank() > 1)
{
throw new InvalidOperationException(string.Format(Properties.Resources.Error_UnsupportedMultidimensionalArray, type));
}
return(Array.CreateInstance(type.GetElementType(), 0));
}
if (type.IsInterface)
{
var contract = ConfigurationUtility.GetImplementedContract(type,
typeof(IReadOnlyDictionary <,>),
typeof(IDictionary <,>));
if (contract != null)
{
var dictionaryType = typeof(Dictionary <,>).MakeGenericType(contract.GenericTypeArguments[0], contract.GenericTypeArguments[1]);
return(dictionaryType.GenericTypeArguments[0] != typeof(string) ?
Activator.CreateInstance(dictionaryType) :
Activator.CreateInstance(dictionaryType, new object[] { StringComparer.OrdinalIgnoreCase }));
}
contract = ConfigurationUtility.GetImplementedContract(type, typeof(ISet <>));
if (contract != null)
{
var setType = typeof(HashSet <>).MakeGenericType(contract.GenericTypeArguments[0]);
return(Activator.CreateInstance(setType));
}
contract = ConfigurationUtility.GetImplementedContract(type,
typeof(IReadOnlyList <>),
typeof(IList <>),
typeof(IReadOnlyCollection <>),
typeof(ICollection <>),
typeof(IEnumerable <>));
if (contract != null)
{
var listType = typeof(List <>).MakeGenericType(contract.GenericTypeArguments[0]);
return(Activator.CreateInstance(listType));
}
}
try
{
if (type.IsInterface || type.IsAbstract)
{
return(Zongsoft.Data.Model.Build(type));
}
return(Activator.CreateInstance(type));
}
catch (Exception ex)
{
throw new InvalidOperationException(string.Format(Properties.Resources.Error_FailedToActivate, type), ex);
}
}
public void Attach(object instance, IConfiguration configuration, ConfigurationBinderOptions options)
{
if (instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
var properties = this.GetProperties(instance.GetType().GetTypeInfo()).Values.Distinct().ToArray();
foreach (var property in properties)
{
if (Common.TypeExtension.IsScalarType(property.PropertyType))
{
configuration[property.ConfigurationKey] = property.GetStringValue(instance);
continue;
}
var propertyValue = property.GetValue(instance);
var dictionaryType = ConfigurationUtility.GetImplementedContract(
property.PropertyType,
typeof(IReadOnlyDictionary <,>),
typeof(IDictionary <,>));
if (dictionaryType != null)
{
//if(propertyValue.GetType() != dictionaryType)
// this.Attach(propertyValue, configuration.GetSection(property.ConfigurationKey), options);
foreach (DictionaryEntry entry in (IEnumerable)propertyValue)
{
var key = ConfigurationPath.Combine(property.ConfigurationKey, entry.Key.ToString());
this.Attach(entry.Value, configuration.GetSection(key), options);
}
continue;
}
var collectionType = ConfigurationUtility.GetImplementedContract(
property.PropertyType,
typeof(IReadOnlyCollection <>),
typeof(ICollection <>),
typeof(IEnumerable <>));
if (collectionType != null)
{
//if(propertyValue.GetType() != collectionType)
// this.Attach(propertyValue, configuration.GetSection(property.ConfigurationKey), options);
int index = 0;
foreach (var entry in (IEnumerable)propertyValue)
{
var key = ConfigurationPath.Combine(property.ConfigurationKey, index++.ToString());
this.Attach(entry, configuration.GetSection(key), options);
}
continue;
}
this.Attach(propertyValue, configuration.GetSection(property.ConfigurationKey), options);
}
}
private void ResolveInstance(object instance, IConfiguration configuration, ConfigurationBinderOptions options)
{
if (configuration is IConfigurationSection section)
{
var properties = this.GetProperties(instance.GetType().GetTypeInfo());
if (section.Value != null)
{
if (properties.TryGetValue(section.Key, out var property))
{
if (property.SetValue(instance, section.Value))
{
return;
}
throw new InvalidOperationException(string.Format(Properties.Resources.Error_FailedBinding, section.Path, instance.GetType()));
}
this.OnUnrecognize(instance, section.Key, section.Value);
}
else
{
if (properties.TryGetValue(section.Key, out var property))
{
var target = property.GetValue(instance);
if (target == null)
{
target = this.Resolve(property.PropertyType, configuration, options);
}
else
{
this.Resolve(target, configuration, options);
}
property.SetValue(instance, target);
}
else
{
var dictionaryType = ConfigurationUtility.GetImplementedContract(instance.GetType(), typeof(IDictionary <,>));
if (dictionaryType != null)
{
if (dictionaryType.GenericTypeArguments[0] != typeof(string))
{
return;
}
var valueType = dictionaryType.GenericTypeArguments[1];
var setter = dictionaryType.GetTypeInfo().GetDeclaredProperty("Item");
Reflection.Reflector.SetValue(setter, ref instance, this.Resolve(valueType, configuration, options), new object[] { section.Key });
return;
}
var collectionType = ConfigurationUtility.GetImplementedContract(instance.GetType(), typeof(ICollection <>));
if (collectionType != null)
{
var valueType = collectionType.GenericTypeArguments[0];
var add = collectionType.GetTypeInfo().GetDeclaredMethod("Add");
add.Invoke(instance, new object[] { this.Resolve(valueType, configuration, options) });
return;
}
this.OnUnrecognize(instance, configuration);
}
}
}
}