/*
* Copyright (c) 2010 StockPlay development team
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.kapti.data.persistence.oracle;
import com.kapti.exceptions.*;
import com.kapti.data.*;
import com.kapti.data.persistence.GenericDAO;
import com.kapti.filter.Filter;
import java.sql.*;
import java.util.ArrayList;
import java.util.Collection;
public class TransactionDAO implements GenericDAO<Transaction, Integer> {
//
// Member data
//
private static final String SELECT_TRANSACTION_LASTID = "select transactionid_seq.currval from dual";
private static final String SELECT_TRANSACTION = "SELECT userid, timest, isin, type, amount, price, comments FROM transactions WHERE id = ?";
private static final String SELECT_TRANSACTIONS = "SELECT id, userid, timest, isin, type, amount, price, comments FROM transactions";
private static final String INSERT_TRANSACTION = "INSERT INTO transactions(id, userid, timest, isin, type, amount, price, comments) VALUES(transactionid_seq.nextval, ?, ?, ?, ?, ?, ?,?)";
private static final String UPDATE_TRANSACTION = "UPDATE transactions SET userid = ?, timest = ?, isin = ?, type = ?, amount = ?, price = ?, comments = ? WHERE id = ?";
private static final String DELETE_TRANSACTION = "DELETE FROM transactions WHERE id = ?";
//
// Construction
//
private static TransactionDAO instance = new TransactionDAO();
private TransactionDAO() {
}
public static TransactionDAO getInstance() {
return instance;
}
//
// Methods
//
public Transaction findById(Integer id) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(SELECT_TRANSACTION);
stmt.setInt(1, id);
rs = stmt.executeQuery();
if (rs.next()) {
Transaction t = new Transaction(id, rs.getInt(1), rs.getString(3));
t.setTime(new Date(rs.getTimestamp(2).getTime()));
t.setType(InstructionType.valueOf(rs.getString(4).toUpperCase()));
t.setAmount(rs.getInt(5));
t.setPrice(rs.getDouble(6));
t.setComments(rs.getString(7));
return t;
} else {
throw new InvocationException(InvocationException.Type.NON_EXISTING_ENTITY, "There is no transaction with id '" + id + "'");
}
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
public Collection<Transaction> findByFilter(Filter iFilter) throws StockPlayException, FilterException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
StringBuilder tQuery = new StringBuilder(SELECT_TRANSACTIONS);
if (!iFilter.empty())
tQuery.append(" WHERE " + (String)iFilter.compile("sql"));
stmt = conn.prepareStatement(tQuery.toString());
rs = stmt.executeQuery();
ArrayList<Transaction> list = new ArrayList<Transaction>();
while (rs.next()) {
Transaction t = new Transaction(rs.getInt(1), rs.getInt(2), rs.getString(4));
t.setTime(new Date(rs.getTimestamp(3).getTime()));
t.setType(InstructionType.valueOf(rs.getString(5).toUpperCase()));
t.setAmount(rs.getInt(6));
t.setPrice(rs.getDouble(7));
t.setComments(rs.getString(8));
list.add(t);
}
return list;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
public Collection<Transaction> findAll() throws StockPlayException {
return findByFilter(new Filter());
}
/**
* Maakt de opgegeven index aan in de database. De id van het object wordt genegeerd, en er wordt door de database mbv. een sequence een uniek nummer gecreërd.
* @param entity Het object dat moet worden aangemaakt in de database
* @return
* @throws StockPlayException
*/
public int create(Transaction entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
PreparedStatement stmtID = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
conn.setAutoCommit(false);
stmt = conn.prepareStatement(INSERT_TRANSACTION);
stmt.setInt(1, entity.getUser());
System.out.println("User: " + entity.getUser());
stmt.setTimestamp(2, new Timestamp(entity.getTime().getTime()));
System.out.println("Timestamp: " + entity.getTime());
stmt.setString(3, entity.getIsin());
System.out.println("Isin: " + entity.getIsin());
stmt.setString(4, entity.getType().toString());
System.out.println("Type: " + entity.getType().toString());
stmt.setInt(5, entity.getAmount());
System.out.println("Amount: " + entity.getAmount());
stmt.setDouble(6, entity.getPrice());
System.out.println("Price: " + entity.getPrice());
stmt.setString(7, entity.getComments());
System.out.println("Comments: " + entity.getComments());
if(stmt.executeUpdate() == 1){
stmtID = conn.prepareStatement(SELECT_TRANSACTION_LASTID);
rs = stmtID.executeQuery();
if(rs.next()){
conn.commit();
conn.setAutoCommit(true);
return rs.getInt(1);
}else{
return -1;
}
}else{
return -1;
}
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if(stmtID != null){
stmtID.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
System.out.println(ex.getSQLState());
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
/**
* Past de Transaction met de opgegeven id aan in de database.
* @param entity Het object dat moet worden aangemaakt in de database
* @return
* @throws StockPlayException
*/
public boolean update(Transaction entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(UPDATE_TRANSACTION);
stmt.setInt(8, entity.getId());
stmt.setInt(1, entity.getUser());
stmt.setTimestamp(2, new Timestamp(entity.getTime().getTime()));
stmt.setString(3, entity.getIsin());
stmt.setString(4, entity.getType().toString());
stmt.setInt(5, entity.getAmount());
stmt.setDouble(6, entity.getPrice());
stmt.setString(7, entity.getComments());
return stmt.executeUpdate() == 1;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
/**
* Verwijdert de index met de id van het object uit de database.
* @param entity Enkel de Id van het object is van belang
* @return True als het verwijderen van de index gelukt is.
* @throws StockPlayException
*/
public boolean delete(Transaction entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(DELETE_TRANSACTION);
stmt.setInt(1, entity.getId());
return stmt.executeUpdate() == 1;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
}