/// <summary>
/// Deserializes a ParameterMap object
/// </summary>
/// <param name="dataExchangeFactory">The data exchange factory.</param>
/// <param name="config">The config.</param>
/// <param name="modelStore">The model store.</param>
/// <returns></returns>
public static ParameterMap Deserialize(
DataExchangeFactory dataExchangeFactory,
IConfiguration config,
IModelStore modelStore)
{
Type type = null;
IDataExchange dataExchange = null;
string id = config.Id;
string className = ConfigurationUtils.GetMandatoryStringAttribute(config, ConfigConstants.ATTRIBUTE_CLASS);
string extendMap = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_EXTENDS);
if (className.Length > 0)
{
type = dataExchangeFactory.TypeHandlerFactory.GetType(className);
dataExchange = dataExchangeFactory.GetDataExchangeForClass(type);
}
else
{
// Get the ComplexDataExchange
dataExchange = dataExchangeFactory.GetDataExchangeForClass(dataExchangeFactory.TypeHandlerFactory.GetTypeAlias(className).Type);
}
return(new ParameterMap(
id,
className,
extendMap,
type,
dataExchange,
modelStore.SessionFactory.DataSource.DbProvider.UsePositionalParameters));
}
/// <summary>
/// Initialize the parameter properties child.
/// </summary>
/// <param name="scope"></param>
/// <param name="usePositionalParameters"></param>
public void Initialize(bool usePositionalParameters, IScope scope)
{
_usePositionalParameters = usePositionalParameters;
if (_className.Length > 0)
{
_parameterClass = _dataExchangeFactory.TypeHandlerFactory.GetType(_className);
_dataExchange = _dataExchangeFactory.GetDataExchangeForClass(_parameterClass);
}
else
{
// Get the ComplexDataExchange
_dataExchange = _dataExchangeFactory.GetDataExchangeForClass(null);
}
}
/// <summary>
/// Initialize the resultMap from an xmlNode..
/// </summary>
/// <param name="configScope"></param>
public void Initialize(ConfigurationScope configScope)
{
try
{
_class = configScope.SqlMapper.TypeHandlerFactory.GetType(_className);
_dataExchange = _dataExchangeFactory.GetDataExchangeForClass(_class);
// Load the child node
GetChildNode(configScope);
// Verify that that each groupBy element correspond to a class member
// of one of result property
for (int i = 0; i < _groupByProperties.Count; i++)
{
string memberName = GroupByPropertyNames[i];
if (!_properties.Contains(memberName))
{
throw new ConfigurationException(
string.Format(
"Could not configure ResultMap named \"{0}\". Check the groupBy attribute. Cause: there's no result property named \"{1}\".",
_id, memberName));
}
}
}
catch (Exception e)
{
throw new ConfigurationException(
string.Format("Could not configure ResultMap named \"{0}\", Cause: {1}", _id, e.Message)
, e);
}
}
/// <summary>
/// 完成动态SQL语句中子语句的拼接 和 参数信息的取出
/// </summary>
/// <param name="request"></param>
/// <param name="parameterObject"></param>
/// <returns></returns>
private string Process(RequestScope request, object parameterObject)
{
SqlTagContext ctx = new SqlTagContext();
IList <ISqlChild> localChildren = children;
ProcessBodyChildren(request, ctx, parameterObject, localChildren);
#region 所有参数对应的属性类的集合信息放入到ParameterMap中
// Builds a 'dynamic' ParameterMap
ParameterMap parameterMap = new ParameterMap(
statement.Id + "-InlineParameterMap",
statement.ParameterClass.FullName,
string.Empty,
statement.ParameterClass,
dataExchangeFactory.GetDataExchangeForClass(null),
usePositionalParameters);
// Adds 'dynamic' ParameterProperty
IList parameters = ctx.GetParameterMappings();
int count = parameters.Count;
for (int i = 0; i < count; i++)
{
parameterMap.AddParameterProperty((ParameterProperty)parameters[i]);
}
request.ParameterMap = parameterMap;
#endregion
#region 完整的SQL语句
string dynSql = ctx.BodyText;
if (statement is Procedure)
{
dynSql = dynSql.Replace(MARK_TOKEN, string.Empty).Replace(COMMA_TOKEN, string.Empty).Trim();
}
// Processes $substitutions$ after DynamicSql
if (SimpleDynamicSql.IsSimpleDynamicSql(dynSql))
{
dynSql = new SimpleDynamicSql(
dataExchangeFactory,
dbHelperParameterCache,
dynSql,
statement).GetSql(parameterObject);
}
#endregion
return(dynSql);
}
/// <summary>
///
/// </summary>
/// <param name="request"></param>
/// <param name="parameterObject"></param>
/// <returns></returns>
private string Process(RequestScope request, object parameterObject)
{
SqlTagContext ctx = new SqlTagContext();
IList <ISqlChild> localChildren = children;
ProcessBodyChildren(request, ctx, parameterObject, localChildren);
// Builds a 'dynamic' ParameterMap
ParameterMap parameterMap = new ParameterMap(
statement.Id + "-InlineParameterMap",
statement.ParameterClass.FullName,
string.Empty,
statement.ParameterClass,
dataExchangeFactory.GetDataExchangeForClass(null),
usePositionalParameters);
// Adds 'dynamic' ParameterProperty
var parameters = ctx.GetParameterMappings();
parameterMap.AddParameterProperties(parameters);
request.ParameterMap = parameterMap;
string dynSql = ctx.BodyText;
if (statement is Procedure)
{
dynSql = dynSql.Replace(MARK_TOKEN, string.Empty).Replace(COMMA_TOKEN, string.Empty).Trim();
}
// Processes $substitutions$ after DynamicSql
if (SimpleDynamicSql.IsSimpleDynamicSql(dynSql))
{
dynSql = new SimpleDynamicSql(
dataExchangeFactory,
dbHelperParameterCache,
dynSql,
statement).GetSql(parameterObject);
}
return(dynSql);
}
/// <summary>
/// Deserializes the specified config.
/// </summary>
/// <param name="config">The config.</param>
/// <param name="dataExchangeFactory">The data exchange factory.</param>
/// <param name="waitResultPropertyResolution">The wait result property resolution delegate.</param>
/// <param name="waitDiscriminatorResolution">The wait discriminator resolution.</param>
/// <returns></returns>
public static ResultMap Deserialize(
IConfiguration config,
DataExchangeFactory dataExchangeFactory,
WaitResultPropertyResolution waitResultPropertyResolution,
WaitDiscriminatorResolution waitDiscriminatorResolution
)
{
string id = config.Id;
string className = ConfigurationUtils.GetMandatoryStringAttribute(config, ConfigConstants.ATTRIBUTE_CLASS);
string extends = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_EXTENDS);
string groupBy = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_GROUPBY);
string keyColumns = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_KEYS_PROPERTIES);
string suffix = ConfigurationUtils.GetStringAttribute(config.Attributes, ConfigConstants.ATTRIBUTE_SUFFIX, string.Empty);
string prefix = ConfigurationUtils.GetStringAttribute(config.Attributes, ConfigConstants.ATTRIBUTE_PREFIX, string.Empty);
Type type = dataExchangeFactory.TypeHandlerFactory.GetType(className);
IDataExchange dataExchange = dataExchangeFactory.GetDataExchangeForClass(type);
IFactory factory = null;
ArgumentPropertyCollection arguments = new ArgumentPropertyCollection();
#region Get the constructor & associated parameters
ConfigurationCollection constructors = config.Children.Find(ConfigConstants.ELEMENT_CONSTRUCTOR);
if (constructors.Count > 0)
{
IConfiguration constructor = constructors[0];
Type[] argumentsType = new Type[constructor.Children.Count];
string[] argumentsName = new string[constructor.Children.Count];
// Builds param name list
for (int i = 0; i < constructor.Children.Count; i++)
{
argumentsName[i] = ConfigurationUtils.GetStringAttribute(constructor.Children[i].Attributes, ConfigConstants.ATTRIBUTE_ARGUMENTNAME);
}
// Find the constructor
ConstructorInfo constructorInfo = GetConstructor(id, type, argumentsName);
// Build ArgumentProperty and parameter type list
for (int i = 0; i < constructor.Children.Count; i++)
{
ArgumentProperty argumentMapping = ArgumentPropertyDeSerializer.Deserialize(
constructor.Children[i],
type,
constructorInfo,
dataExchangeFactory);
arguments.Add(argumentMapping);
if (argumentMapping.NestedResultMapName.Length > 0)
{
waitResultPropertyResolution(argumentMapping);
}
argumentsType[i] = argumentMapping.MemberType;
}
// Init the object factory
factory = dataExchangeFactory.ObjectFactory.CreateFactory(type, argumentsType);
}
else
{
if (!dataExchangeFactory.TypeHandlerFactory.IsSimpleType(type) && type != typeof(DataRow))
{
factory = dataExchangeFactory.ObjectFactory.CreateFactory(type, Type.EmptyTypes);
}
}
#endregion
ResultPropertyCollection properties = BuildResultProperties(
id,
config,
type,
prefix,
suffix,
dataExchangeFactory,
waitResultPropertyResolution);
Discriminator discriminator = BuildDiscriminator(config, type, dataExchangeFactory, waitDiscriminatorResolution);
ResultMap resultMap = new ResultMap(
id,
className,
extends,
groupBy,
keyColumns,
type,
dataExchange,
factory,
dataExchangeFactory.TypeHandlerFactory,
properties,
arguments,
discriminator
);
return(resultMap);
}
/// <summary>
/// Deserializes the specified config.
/// </summary>
/// <param name="config">The config.</param>
/// <param name="dataExchangeFactory">The data exchange factory.</param>
/// <param name="waitResultPropertyResolution">The wait result property resolution delegate.</param>
/// <param name="waitDiscriminatorResolution">The wait discriminator resolution.</param>
/// <returns></returns>
public static ResultMap Deserialize(
IConfiguration config,
DataExchangeFactory dataExchangeFactory,
WaitResultPropertyResolution waitResultPropertyResolution,
WaitDiscriminatorResolution waitDiscriminatorResolution
)
{
/*resultMaps子节点信息格式
* <resultMap id="account-result-constructor" class="Account" >
* <constructor>
* <argument argumentName="identifiant" column="Account_ID"/>
* <argument argumentName="firstName" column="Account_FirstName"/>
* <argument argumentName="lastName" column="Account_LastName"/>
* </constructor>
* <result property="EmailAddress" column="Account_Email" nullValue="*****@*****.**"/>
* <result property="BannerOption" column="Account_Banner_Option" dbType="Varchar" type="bool"/>
* <result property="CartOption" column="Account_Cart_Option" typeHandler="HundredsBool"/>
* </resultMap>
*/
//从config中对应的resultMap节点获取其属性
string id = config.Id;
string className = ConfigurationUtils.GetMandatoryStringAttribute(config, ConfigConstants.ATTRIBUTE_CLASS);
string extends = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_EXTENDS);
string groupBy = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_GROUPBY);
string keyColumns = config.GetAttributeValue(ConfigConstants.ATTRIBUTE_KEYS_PROPERTIES);
string suffix = ConfigurationUtils.GetStringAttribute(config.Attributes, ConfigConstants.ATTRIBUTE_SUFFIX, string.Empty);
string prefix = ConfigurationUtils.GetStringAttribute(config.Attributes, ConfigConstants.ATTRIBUTE_PREFIX, string.Empty);
//从工厂类的别名字典中获取
Type type = dataExchangeFactory.TypeHandlerFactory.GetType(className);
//根据type类型获取IDataExchange类对象
IDataExchange dataExchange = dataExchangeFactory.GetDataExchangeForClass(type);
IFactory factory = null;
//准备存储构造函数参数argument节点信息
ArgumentPropertyCollection arguments = new ArgumentPropertyCollection();
#region Get the constructor & associated parameters
//获取config下节点构造函数constructor的集合
ConfigurationCollection constructors = config.Children.Find(ConfigConstants.ELEMENT_CONSTRUCTOR);
if (constructors.Count > 0)
{
//默认获取第一个构造函数constructor节点 因为是初始化一个类 一个构造函数就足够了
IConfiguration constructor = constructors[0];
Type[] argumentsType = new Type[constructor.Children.Count];
string[] argumentsName = new string[constructor.Children.Count];
// Builds param name list
//argument节点的个数
for (int i = 0; i < constructor.Children.Count; i++)
{
//argumentName属性的取值
argumentsName[i] = ConfigurationUtils.GetStringAttribute(constructor.Children[i].Attributes, ConfigConstants.ATTRIBUTE_ARGUMENTNAME);
}
// Find the constructor 匹配构造函数
ConstructorInfo constructorInfo = GetConstructor(id, type, argumentsName);
// Build ArgumentProperty and parameter type list
//处理构造函数的参数 每一个参数添加到arguments参数列表中
for (int i = 0; i < constructor.Children.Count; i++)
{
ArgumentProperty argumentMapping = ArgumentPropertyDeSerializer.Deserialize(
constructor.Children[i], //第i个Argument节点配置类
type, //当前构造函数的类
constructorInfo, //当前构造函数的信息
dataExchangeFactory);
arguments.Add(argumentMapping);
//此处NestedResultMapName字符串应该为空
if (argumentMapping.NestedResultMapName.Length > 0)
{
waitResultPropertyResolution(argumentMapping);
}
//保存当前参数的类型
argumentsType[i] = argumentMapping.MemberType;
}
// Init the object factory
//构造函数参数信息分析完成 动态初始化这个构造函数
factory = dataExchangeFactory.ObjectFactory.CreateFactory(type, argumentsType);
}
else
{
if (!dataExchangeFactory.TypeHandlerFactory.IsSimpleType(type) && type != typeof(DataRow))
{
factory = dataExchangeFactory.ObjectFactory.CreateFactory(type, Type.EmptyTypes);
}
}
#endregion
//处理result所有节点
ResultPropertyCollection properties = BuildResultProperties(
id,
config,
type,
prefix,
suffix,
dataExchangeFactory,
waitResultPropertyResolution);
//对discriminator鉴别器的分析
Discriminator discriminator = BuildDiscriminator(config, type, dataExchangeFactory, waitDiscriminatorResolution);
//子节点分析完毕 将这些信息加入到resultMap父节点中
ResultMap resultMap = new ResultMap(
id,
className,
extends,
groupBy,
keyColumns,
type,
dataExchange,
factory,
dataExchangeFactory.TypeHandlerFactory,
properties,
arguments,
discriminator
);
return(resultMap);
}