GroupRepositoryJdbc.java
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package fr.plil.sio.persistence.jdbc;
import fr.plil.sio.persistence.api.Group;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import javax.sql.DataSource;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
@Repository
public class GroupRepositoryJdbc implements GroupRepository {
private static final Logger logger = LoggerFactory.getLogger(GroupRepository.class);
@Autowired
private DataSource dataSource;
@Override
public Group findByName(String name) {
Statement stmt = null;
ResultSet rs = null;
try {
stmt = dataSource.getConnection().createStatement();
rs = stmt.executeQuery("SELECT * FROM GROUP_T WHERE NAME_C = \'" + name + "\'");
if (rs.next()) {
logger.debug("found group " + name);
Group group = new Group();
group.setId(rs.getLong("GROUP_ID"));
group.setName(rs.getString("NAME_C"));
return group;
} else {
logger.debug("not found " + name);
return null;
}
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception", e);
} finally {
try {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception during close", e);
}
}
}
@Override
public void save(Group group) {
Statement stmt = null;
ResultSet rs = null;
try {
stmt = dataSource.getConnection().createStatement();
stmt.executeUpdate("INSERT INTO GROUP_T (NAME_C) VALUES (\'" + group.getName() + "\')",
Statement.RETURN_GENERATED_KEYS);
rs = stmt.getGeneratedKeys();
if (rs.next()) {
group.setId(rs.getLong(1));
} else {
throw new UnsupportedOperationException("default in key access");
}
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception", e);
} finally {
try {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception during close", e);
}
}
}
@Override
public void delete(Long id) {
Statement stmt = null;
ResultSet rs = null;
if(id==null){
throw new IllegalArgumentException();
}
try {
stmt = dataSource.getConnection().createStatement();
stmt.execute("DELETE FROM USER_T WHERE GROUP_U = " + id);
stmt.execute("DELETE FROM GROUP_T WHERE GROUP_ID = " + id);
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception", e);
} finally {
try {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
} catch (SQLException e) {
throw new UnsupportedOperationException("sql exception during close", e);
}
}
}
}