/// <summary>
/// 创建表格
/// </summary>
/// <param name="connection">SQL连接</param>
/// <param name="table">表格信息</param>
internal unsafe override bool createTable(DbConnection connection, table table)
{
string name = table.Columns.Name;
if (connection != null && name != null && name.Length != 0 && table.Columns != null && table.Columns.Columns.Length != 0)
{
pointer buffer = fastCSharp.sql.client.SqlBuffers.Get();
try
{
using (charStream sqlStream = new charStream(buffer.Char, fastCSharp.sql.client.SqlBufferSize))
{
sqlStream.SimpleWriteNotNull("create table ");
sqlStream.SimpleWriteNotNull(name);
sqlStream.SimpleWriteNotNull(" (");
bool isNext = false;
foreach (column column in table.Columns.Columns)
{
if (isNext)
{
sqlStream.Write(',');
}
sqlStream.SimpleWriteNotNull(column.SqlName);
sqlStream.Write(' ');
sqlStream.Write(column.DbType.getSqlTypeName());
isNext = true;
}
sqlStream.Write(')');
return(executeNonQuery(connection, sqlStream.ToString()) >= 0);
}
}
finally { fastCSharp.sql.client.SqlBuffers.Push(ref buffer); }
}
return(false);
}
/// <summary>
/// 获取Excel客户端
/// </summary>
/// <returns>Excel客户端</returns>
public unsafe client GetClient()
{
provider provider = Enum <providerType, provider> .Array((byte)Provider);
pointer buffer = fastCSharp.sql.client.SqlBuffers.Get();
try
{
using (charStream connectionStream = new charStream(buffer.Char, fastCSharp.sql.client.SqlBufferSize))
{
connectionStream.SimpleWriteNotNull("Provider=");
connectionStream.Write(provider.Name);
connectionStream.SimpleWriteNotNull(";Data Source=");
connectionStream.Write(DataSource);
if (Password != null)
{
connectionStream.WriteNotNull(";Database Password="******";Extended Properties='");
connectionStream.Write(provider.Excel);
connectionStream.WriteNotNull(IsTitleColumn ? ";HDR=YES;IMEX=" : ";HDR=NO;IMEX=");
number.ToString((byte)Intermixed, connectionStream);
connectionStream.Write('\'');
return((client) new sql.connection {
Type = type.Excel, Connection = connectionStream.ToString()
}.Client);
}
}
finally { fastCSharp.sql.client.SqlBuffers.Push(ref buffer); }
}
/// <summary>
/// 排序字符串
/// </summary>
/// <param name="sqlTable">数据库表格操作工具</param>
/// <param name="sqlStream">SQL表达式流</param>
internal void WriteOrder(fastCSharp.emit.sqlTable.sqlToolBase sqlTable, charStream sqlStream)
{
if (Orders != null)
{
int isNext = 0;
sqlStream.SimpleWriteNotNull(" order by ");
foreach (keyValue <LambdaExpression, bool> order in Orders)
{
if (isNext == 0)
{
isNext = 1;
}
else
{
sqlStream.Write(',');
}
keyValue <string, string> name = sqlTable.Client.GetSql(order.Key, sqlStream);
if (order.Value)
{
sqlStream.SimpleWriteNotNull(" desc");
}
if (!isCreatedIndex && name.Key != null)
{
isCreatedIndex = true;
sqlTable.CreateIndex(name.Key, name.Value);
}
}
}
else if (SqlFieldOrders != null)
{
int isNext = 0;
sqlStream.SimpleWriteNotNull(" order by ");
foreach (keyValue <sqlModel.fieldInfo, bool> order in SqlFieldOrders)
{
if (isNext == 0)
{
isNext = 1;
}
else
{
sqlStream.Write(',');
}
sqlStream.SimpleWriteNotNull(order.Key.SqlFieldName);
if (order.Value)
{
sqlStream.SimpleWriteNotNull(" desc");
}
}
}
}
/// <summary>
/// 获取XML注释文档名称
/// </summary>
/// <param name="type"></param>
public void Xml(Type type)
{
if (type.IsArray)
{
array(type, true);
}
else if (type.IsGenericType)
{
genericFullName(type);
}
else
{
Type reflectedType = type.ReflectedType;
if (reflectedType == null)
{
NameStream.SimpleWriteNotNull(type.Namespace);
NameStream.Write('.');
NameStream.SimpleWriteNotNull(type.Name);
}
else
{
this.reflectedType(type, reflectedType);
}
}
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="binaryExpression">表达式</param>
/// <param name="type">操作字符串</param>
private void convertBinaryExpression(converter converter, BinaryExpression binaryExpression, string type)
{
charStream stream = converter.Stream;
Expression left = binaryExpression.Left, right = binaryExpression.Right;
stream.Write('(');
if (left.IsSimple)
{
converters[(int)left.NodeType](converter, left);
stream.Write('=');
stream.Write('1');
}
else
{
converters[(int)left.NodeType](converter, left);
}
stream.Write(')');
stream.SimpleWriteNotNull(type);
stream.Write('(');
if (right.IsSimple)
{
converters[(int)right.NodeType](converter, right);
stream.Write('=');
stream.Write('1');
}
else
{
converters[(int)right.NodeType](converter, right);
}
stream.Write(')');
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertInSet(sql.expression.converter converter, Expression expression)
{
charStream stream = converter.Stream;
BinaryExpression binaryExpression = (BinaryExpression)expression;
Expression left = binaryExpression.Left;
converters[(int)left.NodeType](converter, left);
stream.SimpleWriteNotNull(" In(");
Action <charStream, object> toString = null;
int index = -1;
foreach (object value in (IEnumerable)((ConstantExpression)binaryExpression.Right).Value)
{
if (++index == 0)
{
toString = constantConverter[value.GetType()];
}
else
{
stream.Write(',');
}
if (toString == null)
{
stringConverter(stream, value.ToString());
}
else
{
toString(stream, value);
}
}
stream.Write(')');
}
private void convertConstant(charStream sqlStream, decimal?value)
{
if (value == null)
{
fastCSharp.web.ajax.WriteNull(sqlStream);
}
else
{
sqlStream.SimpleWriteNotNull(((decimal)value).ToString());
}
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertConditional(converter converter, Expression expression)
{
charStream stream = converter.Stream;
ConditionalExpression conditionalExpression = (ConditionalExpression)expression;
Expression test = conditionalExpression.Test, ifTrue = conditionalExpression.IfTrue, ifFalse = conditionalExpression.IfFalse;
stream.SimpleWriteNotNull("case when ");
if (test.IsSimple)
{
converters[(int)test.NodeType](converter, test);
stream.Write('=');
stream.Write('1');
}
else
{
converters[(int)test.NodeType](converter, test);
}
stream.SimpleWriteNotNull(" then ");
if (ifTrue.IsSimple)
{
converters[(int)ifTrue.NodeType](converter, ifTrue);
}
else
{
stream.Write('(');
converters[(int)ifTrue.NodeType](converter, ifTrue);
stream.Write(')');
}
stream.SimpleWriteNotNull(" else ");
if (ifFalse.IsSimple)
{
converters[(int)ifFalse.NodeType](converter, ifFalse);
}
else
{
stream.Write('(');
converters[(int)ifFalse.NodeType](converter, ifFalse);
stream.Write(')');
}
stream.SimpleWriteNotNull(" end");
}
/// <summary>
/// 查询对象集合
/// </summary>
/// <typeparam name="valueType">对象类型</typeparam>
/// <typeparam name="modelType">模型类型</typeparam>
/// <param name="sqlTool">SQL操作工具</param>
/// <param name="query">查询信息</param>
/// <param name="memberMap">成员位图</param>
/// <param name="sqlStream"></param>
/// <returns></returns>
private unsafe string selectRows <valueType, modelType>
(fastCSharp.emit.sqlTable.sqlTool <valueType, modelType> sqlTool, selectQuery <modelType> query, fastCSharp.code.memberMap <modelType> memberMap, charStream sqlStream)
where valueType : class, modelType
where modelType : class
{
pointer buffer = fastCSharp.sql.client.SqlBuffers.Get();
try
{
using (sqlStream)
{
sqlStream.UnsafeReset(buffer.Byte, SqlBufferSize << 1);
sqlStream.WriteNotNull("select * from(select ");
sqlModel <modelType> .GetNames(sqlStream, memberMap);
sqlStream.WriteNotNull(",row_number()over(");
query.WriteOrder(sqlTool, sqlStream);
sqlStream.SimpleWriteNotNull(")as ");
sqlStream.SimpleWriteNotNull(orderOverName);
sqlStream.SimpleWriteNotNull(" from[");
sqlStream.SimpleWriteNotNull(sqlTool.TableName);
sqlStream.SimpleWriteNotNull("]with(nolock)");
if (query.WriteWhereOnly(sqlTool, sqlStream))
{
sqlStream.SimpleWriteNotNull(")as T where ");
sqlStream.SimpleWriteNotNull(orderOverName);
sqlStream.SimpleWriteNotNull(" between ");
number.ToString(query.SkipCount, sqlStream);
sqlStream.SimpleWriteNotNull(" and ");
number.ToString(query.SkipCount + query.GetCount - 1, sqlStream);
return(sqlStream.ToString());
}
}
}
finally { fastCSharp.sql.client.SqlBuffers.Push(ref buffer); }
return(null);
}
/// <summary>
/// 获取字段信息
/// </summary>
/// <param name="field"></param>
/// <returns></returns>
private xmlNode get(FieldInfo field)
{
if (field != null)
{
xmlNode node;
if (fieldLock.TryGetValue(field, out node))
{
return(node);
}
try
{
hashString fieldName;
pointer buffer = unmanagedPool.StreamBuffers.Get();
try
{
using (fieldNameStream)
{
fieldNameStream.UnsafeReset(buffer.Byte, unmanagedPool.StreamBuffers.Size);
type.nameBuilder nameBuilder = new type.nameBuilder {
NameStream = fieldNameStream, IsXml = true
};
nameBuilder.Xml(field.DeclaringType);
fieldNameStream.Write('.');
fieldNameStream.SimpleWriteNotNull(field.Name);
fieldName = fieldNameStream.ToString();
}
}
finally { unmanagedPool.StreamBuffers.Push(ref buffer); }
if (fields.TryGetValue(fieldName, out node))
{
fields.Remove(fieldName);
}
fieldLock.Set(field, node);
}
finally { fieldLock.Exit(); }
return(node);
}
return(default(xmlNode));
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertCall(converter converter, Expression expression)
{
MethodCallExpression methodCallExpression = (MethodCallExpression)expression;
charStream stream = converter.Stream;
stream.SimpleWriteNotNull(methodCallExpression.Method.Name);
stream.Write('(');
if (methodCallExpression.Arguments != null)
{
bool isNext = false;
foreach (Expression argumentExpression in methodCallExpression.Arguments)
{
if (isNext)
{
stream.Write(',');
}
converters[(int)argumentExpression.NodeType](converter, argumentExpression);
isNext = true;
}
}
stream.Write(')');
}
/// <summary>
/// 转换表达式
/// </summary>
/// <param name="converter">表达式转换器</param>
/// <param name="expression">表达式</param>
private void convertNotEqual(converter converter, Expression expression)
{
BinaryExpression binaryExpression = (BinaryExpression)expression;
if (binaryExpression.Left.IsConstantNull)
{
charStream stream = converter.Stream;
if (binaryExpression.Right.IsSimple)
{
converters[(int)binaryExpression.Right.NodeType](converter, binaryExpression.Right);
}
else
{
stream.Write('(');
converters[(int)binaryExpression.Right.NodeType](converter, binaryExpression.Right);
stream.Write(')');
}
stream.SimpleWriteNotNull(" is not null");
}
else if (binaryExpression.Right.IsConstantNull)
{
charStream stream = converter.Stream;
if (binaryExpression.Left.IsSimple)
{
converters[(int)binaryExpression.Left.NodeType](converter, binaryExpression.Left);
}
else
{
stream.Write('(');
converters[(int)binaryExpression.Left.NodeType](converter, binaryExpression.Left);
stream.Write(')');
}
stream.SimpleWriteNotNull(" is not null");
}
else
{
convertNotEqual(converter, (BinaryExpression)expression);
}
}
/// <summary>
/// 获取属性信息
/// </summary>
/// <param name="property"></param>
/// <returns></returns>
private xmlNode get(PropertyInfo property)
{
if (property != null)
{
xmlNode node;
if (propertyLock.TryGetValue(property, out node))
{
return(node);
}
try
{
hashString propertyName;
pointer buffer = unmanagedPool.StreamBuffers.Get();
try
{
using (propertyNameStream)
{
propertyNameStream.UnsafeReset(buffer.Byte, unmanagedPool.StreamBuffers.Size);
type.nameBuilder nameBuilder = new type.nameBuilder {
NameStream = propertyNameStream, IsXml = true
};
nameBuilder.Xml(property.DeclaringType);
propertyNameStream.Write('.');
propertyNameStream.SimpleWriteNotNull(property.Name);
propertyName = propertyNameStream.ToString();
}
}
finally { unmanagedPool.StreamBuffers.Push(ref buffer); }
if (properties.TryGetValue(propertyName, out node))
{
properties.Remove(propertyName);
}
propertyLock.Set(property, node);
}
finally { propertyLock.Exit(); }
return(node);
}
return(default(xmlNode));
}
private void convertConstant(charStream sqlStream, decimal value)
{
sqlStream.SimpleWriteNotNull(value.ToString());
}
/// <summary>
/// 常量转换字符串
/// </summary>
/// <param name="sqlStream">SQL字符流</param>
/// <param name="value">常量</param>
private void convertConstantFloat(charStream sqlStream, object value)
{
sqlStream.SimpleWriteNotNull(((float)value).ToString());
}
public static void ToString(decimal value, charStream jsonStream)
{
jsonStream.SimpleWriteNotNull(value.ToString());
}
/// <summary>
/// 获取方法信息
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
private xmlNode get(MethodInfo method)
{
if (method != null)
{
xmlNode node;
if (methodLock.TryGetValue(method, out node))
{
return(node);
}
try
{
hashString methodName;
pointer buffer = unmanagedPool.StreamBuffers.Get();
try
{
using (methodNameStream)
{
methodNameStream.UnsafeReset(buffer.Byte, unmanagedPool.StreamBuffers.Size);
type.nameBuilder nameBuilder = new type.nameBuilder {
NameStream = methodNameStream, IsXml = true
};
nameBuilder.Xml(method.DeclaringType);
methodNameStream.Write('.');
string name = method.Name;
if (name[0] == '.')
{
methodNameStream.Write('#');
methodNameStream.Write(subString.Unsafe(name, 1, name.Length - 1));
}
else
{
methodNameStream.SimpleWriteNotNull(name);
}
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length != 0)
{
bool isFirst = true;
methodNameStream.Write('(');
foreach (ParameterInfo parameter in parameters)
{
if (isFirst)
{
isFirst = false;
}
else
{
methodNameStream.Write(',');
}
nameBuilder.Xml(parameter.ParameterType);
}
methodNameStream.Write(')');
}
formatName(methodNameStream.Char, methodNameStream.CurrentChar);
methodName = methodNameStream.ToString();
}
}
finally { unmanagedPool.StreamBuffers.Push(ref buffer); }
if (methods.TryGetValue(methodName, out node))
{
methods.Remove(methodName);
}
methodLock.Set(method, node);
}
finally { methodLock.Exit(); }
return(node);
}
return(default(xmlNode));
}
/// <summary>
/// 常量转换字符串
/// </summary>
/// <param name="sqlStream">SQL字符流</param>
/// <param name="value">常量</param>
private void convertConstantDecimal(charStream sqlStream, object value)
{
sqlStream.SimpleWriteNotNull(((decimal)value).ToString());
}
