package at.gv.egovernment.moa.id.process.spring.test;

import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import javax.sql.DataSource;

import at.gv.egovernment.moa.id.auth.exception.AuthenticationException;
import at.gv.egovernment.moa.id.commons.db.ex.MOADatabaseException;
import at.gv.egovernment.moa.id.storage.ITransactionStorage;
import at.gv.egovernment.moa.logging.Logger;

/**
 * Dummy DataSource implementation for convenience in test cases where a
 * database connection will never actually be acquired.
 *
 * @see DataSource
 * @author Chris Beams
 */
public class DummyTransactionStorage implements ITransactionStorage {

	public class DummyDBEntry{
		public DummyDBEntry(String key, Object value){
			this.obj =value;
			this.key = key;
		}
		public String getKey() {
			return key;
		}
		public void setKey(String key) {
			this.key = key;
		}
		public Object getObj() {
			return obj;
		}
		public void setObj(Object obj) {
			this.obj = obj;
		}
		private String key;
		private Object obj;
	}
	
	private ArrayList<DummyDBEntry> ds = new ArrayList<DummyDBEntry>();
	

	
	@Override
	public boolean containsKey(String key) {
		// TODO Auto-generated method stub
		Iterator<DummyDBEntry> it = ds.iterator();
		while(it.hasNext()){
			DummyDBEntry t = it.next();
			if(t.getKey().equals(key))
				return true;
		}
		return false;
	}

	@Override
	public void put(String key, Object value, int timeout_ms)
			throws MOADatabaseException {
		// TODO Auto-generated method stub
		this.remove(key);
		this.ds.add(new DummyDBEntry(key, value));
		
	}

	@Override
	public Object get(String key) throws MOADatabaseException {
		// TODO Auto-generated method stub
		Iterator<DummyDBEntry> it = ds.iterator();
		while(it.hasNext()){
			DummyDBEntry t = it.next();
			if(t.getKey().equals(key))
				return t;
		}
		return null;
	}

	@Override
	public <T> T get(String key, Class<T> clazz) throws MOADatabaseException {
		
		  DummyDBEntry o = (DummyDBEntry) get(key);
		  if(o == null)
			  return null;
		  try {
			  @SuppressWarnings("unchecked")
			T test = (T) (clazz.cast(o.getObj()));
			return test;
			
		  } catch (Exception e) {
			Logger.warn("Sessioninformation Cast-Exception by using Artifact=" + key);
			throw new MOADatabaseException("Sessioninformation Cast-Exception");
			
		  }
	}

	@Override
	public <T> T get(String key, Class<T> clazz, long dataTimeOut)
			throws MOADatabaseException, AuthenticationException {
		// TODO Auto-generated method stub
		return get(key,clazz);
	}

	@Override
	public void changeKey(String oldKey, String newKey, Object value)
			throws MOADatabaseException {
		this.remove(oldKey);
		this.put(newKey, value, -1);
		
	}

	@Override
	public void remove(String key) {
		Iterator<DummyDBEntry> it = ds.iterator();
		while(it.hasNext()){
			DummyDBEntry t = it.next();
			if(t.getKey().equals(key)){
				this.ds.remove(t);
				return;
			}
		}
		
	}

	@Override
	public List<String> clean(Date now, long dataTimeOut) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public Object getAssertionStore(String key) throws MOADatabaseException {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void putAssertionStore(Object element) throws MOADatabaseException {
		// TODO Auto-generated method stub
		
	}

    
}