package hsfulda.de;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.HashMap;

public class FedConnection implements FedConnectionInterface {
	HashMap<Integer, Connection> connections = new HashMap<Integer, Connection>();

	String connectionStrings[] = {
			"jdbc:oracle:thin:@pinatubo.informatik.hs-fulda.de:1521:ORALV8A",
			"jdbc:oracle:thin:@mtsthelens.informatik.hs-fulda.de:1521:ORALV9A",
			"jdbc:oracle:thin:@krakatau.informatik.hs-fulda.de:1521:ORALV10A" };

	public FedConnection(String username, String password) throws FedException {
		try {
			DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
			for (int i = 0; i < connectionStrings.length; i++) {
				connections.put(i, DriverManager.getConnection(connectionStrings[i], username, password));
			}
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
	}

	public void setAutoCommit(boolean autoCommit) throws FedException {
		try {
			for (Object i : connections.keySet()) {
				connections.get(i).setAutoCommit(autoCommit);
			}
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
	}

	public boolean getAutoCommit() throws FedException {
		boolean autoCommit = false;
		try {
			autoCommit = connections.get(0).getAutoCommit();
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
		return autoCommit;
	}

	public void commit() throws FedException {
		try {
			for (Object i : connections.keySet()) {
				connections.get(i).commit();
			}
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
	}

	public void rollback() throws FedException {
		try {
			for (Object i : connections.keySet()) {
				connections.get(i).rollback();
			}
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
	}

	public void close() throws FedException {
		try {
			for (Object i : connections.keySet()) {
				connections.get(i).close();
			}
		} catch (SQLException sqlException) {
			throw new FedException(sqlException);
		}
	}

	public FedStatement getStatement() {
		return new FedStatement(this);
	}
}