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package server;
import java.math.BigInteger;
import java.rmi.*;
import java.rmi.registry.LocateRegistry;
import java.rmi.server.UnicastRemoteObject;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import Models.*;
import sql.SQL;
@SuppressWarnings("serial")
public class ServerMethod extends UnicastRemoteObject implements ServerInterface
{
protected static String m_strName;
SQL sql=new SQL();
Connection con=sql.getConnection();
public ServerMethod() throws RemoteException
{
super(); // call base class constructor
}
public static void main(String argv[])
{
try
{
LocateRegistry.createRegistry(9999);
m_strName = "TheRMIExample";
System.out.println("Server: Registering RMIExampleImpl as \"" + m_strName +"\"");
//System.setSecurityManager(new RMISecurityManager());
ServerMethod Example = new ServerMethod();
Naming.rebind("rmi://141.79.128.121:9999/"+m_strName, Example);
System.out.println("Server: Ready...");
}
catch (Exception e)
{
System.out.println("Server: Failed to register RMIExampleImpl: " + e);
}
}
@Override
public User getFtpUser() throws RemoteException {
User user=new User();
user.setUsername(UUID.randomUUID().toString().substring(0, 8));
user.setPass(getEncodedSha1Sum(UUID.randomUUID().toString().substring(0, 8)));
user.setPath("/srv/openslx/nfs/temp");
SQL sql=new SQL();
Connection con=sql.getConnection();
sql.writeFTPUser(con, user.getUsername(), user.getPass());
return user;
}
@Override
public int DeleteFtpUser(String user) throws RemoteException {
int ret = sql.DeleteUser(con, user);
return ret;
}
public String getEncodedSha1Sum(String key) {
try {
MessageDigest md = MessageDigest.getInstance( "SHA1" );
md.update( key.getBytes() );
return new BigInteger(1, md.digest()).toString(16);
}
catch (NoSuchAlgorithmException e) {
// handle error case to taste
}
return null;
}
public ArrayList<String> getImages(){
ResultSet rs= sql.getImage(con);
ArrayList<String> al=new ArrayList<String>();
try {
while(rs.next())
{
al.add(rs.getString(1));
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return al;
}
public String getPathOfImage(String name){
String path = null;
ResultSet rs= sql.getPathOfImage(con, name);
try {
while(rs.next())
{
path=rs.getString(1);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return path;
}
@Override
public boolean writeVLdata(String imagename, String firstname,
String lastname, String university, String Mail, String Tel,
String Fak, boolean license, boolean internet, int ram, int cpu)
throws RemoteException {
String login="tete";
System.out.println("1");
int pk_institution=sql.setInstitution(con, university);
System.out.println("2");
int pk_person=sql.setPerson(con, login, lastname, firstname, Mail, new Date(), pk_institution);
System.out.println("3");
sql.setImageData(con, pk_person, license, internet, cpu, ram, imagename);
System.out.println("4");
// TODO Auto-generated method stub
return true;
}
@Override
public List<Object[]> getImageList() throws RemoteException {
ResultSet resWith=sql.getImageListWithLectures(con);
ResultSet resWithout=sql.getImageListWithoutLectures(con);
try {
List<Object[]> listWith = ResSetToObject(resWith);
List<Object[]> listWithout=ResSetToObject(resWithout);
listWith.addAll(listWith.size(), listWithout);
return listWith;
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
return null;
}
public List<Object[]> ResSetToObject(ResultSet res) throws SQLException
{
ResultSetMetaData rsmd = res.getMetaData();
List<Object[]> list=new ArrayList<>();
while(res.next()){
Object[] objects = new Object[rsmd.getColumnCount()];
// tanks to umit ozkan for the bug fix!
for(int i=0;i<rsmd.getColumnCount();i++){
objects[i]=res.getObject(i+1);
}
list.add(objects);
}
return list;
}
@Override
public List<String> getAllOS() throws RemoteException {
List<String> list=new ArrayList<>();
ResultSet rs=sql.getAllOS(con);
try {
while(rs.next())
{
list.add(rs.getString("name"));
}
return list;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
}
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