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package app;
import java.util.*;
public class Main {
public static void main (String[] args) {
if ((null == args) || (2 > args.length)) {
args = new String[] { "a use case", "a user" };
}
new UseCase(args[0]).run(new User(args[1]));
}
}
interface Action {
void doAction(User user);
}
class User {
String name;
User(String name) {
this.name = name;
}
public String toString() { return name; }
}
class UseCase implements Runnable {
String name;
User user;
List actions;
UseCase(String name) {
this.name = name;
this.actions = new ArrayList();
}
public void setUser(User user) {
this.user = user;
}
public void run() {
run(user);
}
public void run(User user) {
List curActions = loadActions();
for (Iterator iter = curActions.iterator(); iter.hasNext();) {
((Action) iter.next()).doAction(user);
}
}
public void addAction(Action action) {
if (null != action) {
actions.add(action);
}
}
public String toString() { return name; }
protected List loadActions() {
return actions;
}
}
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