/// <summary>
/// Parse Inline ParameterMap
/// </summary>
/// <param name="statement"></param>
/// <param name="sqlStatement"></param>
/// <returns>A new sql command text.</returns>
/// <param name="scope"></param>
public SqlText ParseInlineParameterMap(IScope scope, IStatement statement, string sqlStatement)
{
string newSql = sqlStatement;
ArrayList mappingList = new ArrayList();
Type parameterClassType = null;
if (statement != null)
{
parameterClassType = statement.ParameterClass;
}
StringTokenizer parser = new StringTokenizer(sqlStatement, PARAMETER_TOKEN, true);
StringBuilder newSqlBuffer = new StringBuilder();
string token = null;
string lastToken = null;
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext())
{
token = (string)enumerator.Current;
if (PARAMETER_TOKEN.Equals(lastToken))
{
if (PARAMETER_TOKEN.Equals(token))
{
newSqlBuffer.Append(PARAMETER_TOKEN);
token = null;
}
else
{
ParameterProperty mapping = null;
if (token.IndexOf(PARAM_DELIM) > -1)
{
mapping = OldParseMapping(token, parameterClassType, scope);
}
else
{
mapping = NewParseMapping(token, parameterClassType, scope);
}
mappingList.Add(mapping);
newSqlBuffer.Append("? ");
enumerator.MoveNext();
token = (string)enumerator.Current;
if (!PARAMETER_TOKEN.Equals(token))
{
throw new DataMapperException("Unterminated inline parameter in mapped statement (" + statement.Id + ").");
}
token = null;
}
}
else
{
if (!PARAMETER_TOKEN.Equals(token))
{
newSqlBuffer.Append(token);
}
}
lastToken = token;
}
newSql = newSqlBuffer.ToString();
ParameterProperty[] mappingArray = (ParameterProperty[]) mappingList.ToArray(typeof(ParameterProperty));
SqlText sqlText = new SqlText();
sqlText.Text = newSql;
sqlText.Parameters = mappingArray;
return sqlText;
}
/// <summary>
/// Parse inline parameter with syntax as
/// #propertyName,type=string,dbype=Varchar,direction=Input,nullValue=N/A,handler=string#
/// </summary>
/// <param name="token"></param>
/// <param name="parameterClassType"></param>
/// <param name="scope"></param>
/// <returns></returns>
private ParameterProperty NewParseMapping(string token, Type parameterClassType, IScope scope)
{
ParameterProperty mapping = new ParameterProperty();
StringTokenizer paramParser = new StringTokenizer(token, "=,", false);
IEnumerator enumeratorParam = paramParser.GetEnumerator();
enumeratorParam.MoveNext();
mapping.PropertyName = ((string)enumeratorParam.Current).Trim();
while (enumeratorParam.MoveNext())
{
string field = (string)enumeratorParam.Current;
if (enumeratorParam.MoveNext())
{
string value = (string)enumeratorParam.Current;
if ("type".Equals(field))
{
mapping.CLRType = value;
}
else if ("dbType".Equals(field))
{
mapping.DbType = value;
}
else if ("direction".Equals(field))
{
mapping.DirectionAttribute = value;
}
else if ("nullValue".Equals(field))
{
mapping.NullValue = value;
}
else if ("handler".Equals(field))
{
mapping.CallBackName = value;
}
else
{
throw new DataMapperException("Unrecognized parameter mapping field: '" + field + "' in " + token);
}
}
else
{
throw new DataMapperException("Incorrect inline parameter map format (missmatched name=value pairs): " + token);
}
}
if (mapping.CallBackName.Length >0)
{
mapping.Initialize( scope, parameterClassType );
}
else
{
ITypeHandler handler = null;
if (parameterClassType == null)
{
handler = scope.DataExchangeFactory.TypeHandlerFactory.GetUnkownTypeHandler();
}
else
{
handler = ResolveTypeHandler( scope.DataExchangeFactory.TypeHandlerFactory,
parameterClassType, mapping.PropertyName,
mapping.CLRType, mapping.DbType );
}
mapping.TypeHandler = handler;
mapping.Initialize( scope, parameterClassType );
}
return mapping;
}
/// <summary>
/// Parse inline parameter with syntax as
/// #propertyName:dbType:nullValue#
/// </summary>
/// <param name="token"></param>
/// <param name="parameterClassType"></param>
/// <param name="scope"></param>
/// <returns></returns>
private ParameterProperty OldParseMapping(string token, Type parameterClassType, IScope scope)
{
ParameterProperty mapping = new ParameterProperty();
if (token.IndexOf(PARAM_DELIM) > -1)
{
StringTokenizer paramParser = new StringTokenizer(token, PARAM_DELIM, true);
IEnumerator enumeratorParam = paramParser.GetEnumerator();
int n1 = paramParser.TokenNumber;
if (n1 == 3)
{
enumeratorParam.MoveNext();
string propertyName = ((string)enumeratorParam.Current).Trim();
mapping.PropertyName = propertyName;
enumeratorParam.MoveNext();
enumeratorParam.MoveNext(); //ignore ":"
string dBType = ((string)enumeratorParam.Current).Trim();
mapping.DbType = dBType;
ITypeHandler handler = null;
if (parameterClassType == null)
{
handler = scope.DataExchangeFactory.TypeHandlerFactory.GetUnkownTypeHandler();
}
else
{
handler = ResolveTypeHandler(scope.DataExchangeFactory.TypeHandlerFactory, parameterClassType, propertyName, null, dBType);
}
mapping.TypeHandler = handler;
mapping.Initialize( scope, parameterClassType );
}
else if (n1 >= 5)
{
enumeratorParam.MoveNext();
string propertyName = ((string)enumeratorParam.Current).Trim();
enumeratorParam.MoveNext();
enumeratorParam.MoveNext(); //ignore ":"
string dBType = ((string)enumeratorParam.Current).Trim();
enumeratorParam.MoveNext();
enumeratorParam.MoveNext(); //ignore ":"
string nullValue = ((string)enumeratorParam.Current).Trim();
while (enumeratorParam.MoveNext())
{
nullValue = nullValue + ((string)enumeratorParam.Current).Trim();
}
mapping.PropertyName = propertyName;
mapping.DbType = dBType;
mapping.NullValue = nullValue;
ITypeHandler handler = null;
if (parameterClassType == null)
{
handler = scope.DataExchangeFactory.TypeHandlerFactory.GetUnkownTypeHandler();
}
else
{
handler = ResolveTypeHandler(scope.DataExchangeFactory.TypeHandlerFactory, parameterClassType, propertyName, null, dBType);
}
mapping.TypeHandler = handler;
mapping.Initialize( scope, parameterClassType );
}
else
{
throw new ConfigurationException("Incorrect inline parameter map format: " + token);
}
}
else
{
mapping.PropertyName = token;
ITypeHandler handler = null;
if (parameterClassType == null)
{
handler = scope.DataExchangeFactory.TypeHandlerFactory.GetUnkownTypeHandler();
}
else
{
handler = ResolveTypeHandler(scope.DataExchangeFactory.TypeHandlerFactory, parameterClassType, token, null, null);
}
mapping.TypeHandler = handler;
mapping.Initialize( scope, parameterClassType );
}
return mapping;
}
/// <summary>
/// Parse sql command text.
/// </summary>
private void EvaluateParameterMap()
{
string delimiter = "?";
string token = null;
int index = 0;
string sqlParamName = string.Empty;
StringTokenizer parser = new StringTokenizer(_commandText, delimiter, true);
StringBuilder newCommandTextBuffer = new StringBuilder();
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext())
{
token = (string)enumerator.Current;
if (delimiter.Equals(token)) // ?
{
ParameterProperty property = _request.ParameterMap.Properties[index];
IDataParameter dataParameter = null;
if (_session.DataSource.DbProvider.UsePositionalParameters)
{
// TODO Refactor?
if (_parameterPrefix.Equals(":"))
{
// ODP.NET uses positional parameters by default
// but uses ":0" or ":1" instead of "?"
sqlParamName = ":" + index;
}
else
{
// OLEDB/OBDC doesn't support named parameters !!!
sqlParamName = "?";
}
}
else
{
dataParameter = (IDataParameter) _propertyDbParameterMap[property];
// 5 May 2004
// Need to check UseParameterPrefixInParameter here
// since CreateParametersForStatementText now does
// a check for UseParameterPrefixInParameter before
// creating the parameter name!
if (_session.DataSource.DbProvider.UseParameterPrefixInParameter)
{
// Fix ByteFX.Data.MySqlClient.MySqlParameter
// who strip prefix in Parameter Name ?!
if (_session.DataSource.DbProvider.Name.IndexOf("ByteFx")>=0)
{
sqlParamName = _parameterPrefix+dataParameter.ParameterName;
}
else
{
sqlParamName = dataParameter.ParameterName;
}
}
else
{
sqlParamName = _parameterPrefix+dataParameter.ParameterName;
}
}
newCommandTextBuffer.Append(" ");
newCommandTextBuffer.Append(sqlParamName);
sqlParamName = string.Empty;
index ++;
}
else
{
newCommandTextBuffer.Append(token);
}
}
_preparedStatement.PreparedSql = newCommandTextBuffer.ToString();
}
/// <summary>
/// Parse and tokenize the sql script into multiple statements
/// </summary>
/// <param name="script">the script to parse</param>
private ArrayList ParseScript(string script)
{
ArrayList statements = new ArrayList();
StringTokenizer parser = new StringTokenizer(script, ";");
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext()) {
string statement= ((string)enumerator.Current).Replace("\r\n"," ");
statement = statement.Trim();
if (statement != string.Empty) {
statements.Add(statement);
}
}
return statements;
}
public StringTokenizerEnumerator(StringTokenizer stok)
{
_stokenizer = stok;
}
/// <summary>
///
/// </summary>
/// <param name="parameterObject"></param>
/// <returns></returns>
private string ProcessDynamicElements(object parameterObject)
{
// define which character is seperating fields
StringTokenizer parser = new StringTokenizer(_simpleSqlStatement, ELEMENT_TOKEN, true);
StringBuilder newSql = new StringBuilder();
string token = null;
string lastToken = null;
IEnumerator enumerator = parser.GetEnumerator();
while (enumerator.MoveNext())
{
token = ((string)enumerator.Current);
if (ELEMENT_TOKEN.Equals(lastToken))
{
if (ELEMENT_TOKEN.Equals(token))
{
newSql.Append(ELEMENT_TOKEN);
token = null;
}
else
{
object value = null;
if (parameterObject != null)
{
if ( _dataExchangeFactory.TypeHandlerFactory.IsSimpleType( parameterObject.GetType() ) == true)
{
value = parameterObject;
}
else
{
value = ObjectProbe.GetMemberValue(parameterObject, token, _dataExchangeFactory.AccessorFactory);
}
}
if (value != null)
{
newSql.Append(value.ToString());
}
enumerator.MoveNext();
token = ((string)enumerator.Current);
if (!ELEMENT_TOKEN.Equals(token))
{
throw new DataMapperException("Unterminated dynamic element in sql (" + _simpleSqlStatement + ").");
}
token = null;
}
}
else
{
if (!ELEMENT_TOKEN.Equals(token))
{
newSql.Append(token);
}
}
lastToken = token;
}
return newSql.ToString();
}
public StringTokenizerEnumerator(StringTokenizer stok)
{
_stokenizer = stok;
}