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Sean
2025-03-25 21:42:32 -04:00
parent c266eecfeb
commit 30c33d3cfd
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305
MarketData/MarketDataLib/DataAccess/LexicalDA.cs Executable file
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using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using MySql.Data.MySqlClient;
using MarketData.MarketDataModel;
using MarketData.Utils;
namespace MarketData.DataAccess
{
public class LexicalDA
{
private LexicalDA()
{
}
public static bool TruncateLexicon()
{
MySqlConnection sqlConnection = null;
MySqlTransaction sqlTransaction = null;
MySqlCommand sqlCommand=null;
String strQuery = null;
try
{
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
StringBuilder sb = new StringBuilder();
sb.Append("truncate table lexicon");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlCommand.ExecuteNonQuery();
sqlTransaction.Commit();
return true;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
return false;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if(null!=sqlTransaction)sqlTransaction.Dispose();
if (null != sqlConnection) sqlConnection.Close();
}
}
public static bool InsertLexicalElement(LexicalElement lexicalElement)
{
LexicalCollection lexicalCollection=new LexicalCollection();
lexicalCollection.Add(lexicalElement);
InsertLexicalCollection(lexicalCollection);
return true;
}
public static bool InsertLexicalCollection(LexicalCollection lexicalCollection)
{
MySqlConnection sqlConnection = null;
MySqlTransaction sqlTransaction = null;
MySqlCommand sqlCommand=null;
String strQuery = null;
try
{
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
StringBuilder sb = new StringBuilder();
DateTime modified=DateTime.Now;
DateTime created=modified;
foreach(LexicalElement lexicalElement in lexicalCollection)
{
sb=new StringBuilder();
if(ContainsLexicalElement(lexicalElement))continue;
sb.Append("insert into lexicon (word,sentiment,part_of_speech) ");
sb.Append("values(");
sb.Append("'").Append(lexicalElement.Word).Append("'").Append(",");
sb.Append("'").Append(lexicalElement.Sentiment).Append("'").Append(",");
if(null!=lexicalElement.PartOfSpeech)sb.Append("'").Append(lexicalElement.PartOfSpeech).Append("'");
else sb.Append("null");
sb.Append(")");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlCommand.ExecuteNonQuery();
}
sqlTransaction.Commit();
return true;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
return false;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if(null!=sqlTransaction)sqlTransaction.Dispose();
if (null != sqlConnection) sqlConnection.Close();
}
}
public static bool ContainsLexicalElement(LexicalElement lexicalElement)
{
MySqlConnection sqlConnection = null;
MySqlDataReader sqlDataReader = null;
MySqlCommand sqlCommand=null;
String strQuery = null;
int recordCount = 0;
try
{
StringBuilder sb = new StringBuilder();
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
sb.Append("select count(*) from lexicon where word='").Append(lexicalElement.Word).Append("' ");
sb.Append("and sentiment='").Append(lexicalElement.Sentiment).Append("' ");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlDataReader = sqlCommand.ExecuteReader();
if (sqlDataReader.Read())
{
if (!sqlDataReader.IsDBNull(0)) recordCount = sqlDataReader.GetInt32(0);
}
sqlCommand.Dispose();
return 0 == recordCount ? false : true;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
return false;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if (null != sqlDataReader) sqlDataReader.Close();
if (null != sqlConnection) sqlConnection.Close();
}
}
public static bool UpdateLexicalElement(LexicalElement lexicalElement)
{
LexicalCollection lexicalCollection=new LexicalCollection();
lexicalCollection.Add(lexicalElement);
return UpdateLexicalElements(lexicalCollection);
}
public static bool UpdateLexicalElements(LexicalCollection lexicalCollection)
{
MySqlConnection sqlConnection = null;
MySqlTransaction sqlTransaction = null;
MySqlCommand sqlCommand=null;
String strQuery = null;
try
{
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
sqlTransaction = sqlConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
foreach(LexicalElement lexicalElement in lexicalCollection)
{
if(!ContainsLexicalElement(lexicalElement))continue;
if(null==lexicalElement.PartOfSpeech||0==lexicalElement.PartOfSpeech.Length)continue;
StringBuilder sb = new StringBuilder();
DateTime modified=DateTime.Now;
sb.Append("update lexicon set ");
sb.Append("part_of_speech=").Append("'").Append(lexicalElement.PartOfSpeech).Append("'");
sb.Append(" where word='").Append(lexicalElement.Word).Append("'").Append(" and ");
sb.Append("sentiment='").Append(lexicalElement.Sentiment).Append("'");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlCommand.ExecuteNonQuery();
}
sqlTransaction.Commit();
return true;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
return false;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if(null!=sqlTransaction)sqlTransaction.Dispose();
if (null != sqlConnection) sqlConnection.Close();
}
}
public static LexicalCollection GetLexicalCollection(String sentiment)
{
MySqlConnection sqlConnection = null;
MySqlCommand sqlCommand=null;
MySqlDataReader sqlDataReader=null;
LexicalCollection lexicalCollection=new LexicalCollection();
String strQuery = null;
try
{
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
StringBuilder sb = new StringBuilder();
DateTime modified=DateTime.Now;
sb.Append("select word,sentiment,part_of_speech from lexicon ");
sb.Append(" where sentiment='").Append(sentiment).Append("'");
sb.Append(" order by word desc");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlDataReader=sqlCommand.ExecuteReader();
while(sqlDataReader.Read())
{
LexicalElement lexicalElement=new LexicalElement();
lexicalElement.Word=sqlDataReader.GetString(0);
lexicalElement.Sentiment=sqlDataReader.GetString(1);
if(!sqlDataReader.IsDBNull(2))lexicalElement.PartOfSpeech=sqlDataReader.GetString(2);
lexicalCollection.Add(lexicalElement);
}
return lexicalCollection;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
return null;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if (null != sqlConnection) sqlConnection.Close();
}
}
public static LexicalCollection GetLexicalCollection()
{
MySqlConnection sqlConnection = null;
MySqlCommand sqlCommand=null;
MySqlDataReader sqlDataReader=null;
LexicalCollection lexicalCollection=new LexicalCollection();
String strQuery = null;
try
{
sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
StringBuilder sb = new StringBuilder();
DateTime modified=DateTime.Now;
sb.Append("select word,sentiment,part_of_speech from lexicon ");
sb.Append(" order by word desc");
strQuery = sb.ToString();
sqlCommand = new MySqlCommand(strQuery, sqlConnection);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlDataReader=sqlCommand.ExecuteReader();
while(sqlDataReader.Read())
{
LexicalElement lexicalElement=new LexicalElement();
lexicalElement.Word=sqlDataReader.GetString(0);
lexicalElement.Sentiment=sqlDataReader.GetString(1);
if(!sqlDataReader.IsDBNull(2))lexicalElement.PartOfSpeech=sqlDataReader.GetString(2);
lexicalCollection.Add(lexicalElement);
}
return lexicalCollection;
}
catch (Exception exception)
{
MDTrace.WriteLine(LogLevel.DEBUG,exception);
MDTrace.WriteLine(LogLevel.DEBUG,"Query was '" + strQuery + "'");
return null;
}
finally
{
if(null!=sqlCommand)sqlCommand.Dispose();
if (null != sqlConnection) sqlConnection.Close();
}
}
private static bool DeleteLexicalCollection(LexicalCollection lexicalCollection, MySqlConnection sqlConnection, MySqlTransaction sqlTransaction)
{
foreach(LexicalElement lexicalElement in lexicalCollection)DeleteLexicalElement(lexicalElement,sqlConnection,sqlTransaction);
return true;
}
private static bool DeleteLexicalElement(LexicalElement lexicalElement, MySqlConnection sqlConnection, MySqlTransaction sqlTransaction)
{
StringBuilder sb = new StringBuilder();
String strQuery = null;
try
{
sb.Append("delete from lexicon where ");
sb.Append("word='").Append(lexicalElement.Word).Append("'");
sb.Append(" and ");
sb.Append("sentiment='").Append(lexicalElement.Sentiment).Append("'");
strQuery = sb.ToString();
MySqlCommand sqlCommand = new MySqlCommand(strQuery, sqlConnection, sqlTransaction);
sqlCommand.CommandTimeout = SqlUtils.COMMAND_TIMEOUT;
sqlCommand.ExecuteNonQuery();
sqlCommand.Dispose();
return true;
}
catch (Exception exception)
{
sqlTransaction.Rollback();
MDTrace.WriteLine(LogLevel.DEBUG,exception);
if (null != strQuery) MDTrace.WriteLine(LogLevel.DEBUG,"Query was " + strQuery);
return false;
}
finally
{
}
}
}
}