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Introducing Optionals

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This commit is contained in:
igoudt 2017-01-14 21:52:40 +01:00
parent 97261fdcca
commit f98afdf4ad
21 changed files with 407 additions and 483 deletions
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25
Mage.Server/src/main/java/mage/server/UserManager.java
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@ -27,24 +27,16 @@
*/
package mage.server;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import mage.server.User.UserState;
import mage.server.record.UserStats;
import mage.server.record.UserStatsRepository;
import mage.server.util.ThreadExecutor;
import org.apache.log4j.Logger;
import java.util.*;
import java.util.concurrent.*;
/**
*
* manages users - if a user is disconnected and 10 minutes have passed with no
* activity the user is removed
*
@ -81,11 +73,18 @@ public class UserManager {
return user;
}
public User getUser(UUID userId) {
if (userId != null) {
public Optional<User> getUser(UUID userId) {
if (users.get(userId) == null) {
LOGGER.error(String.format("User with id %s could not be found", userId));
return Optional.empty();
} else {
return Optional.of(users.get(userId));
}
/* if (userId != null) {
return users.get(userId);
}
return null;
*/
}
public User getUserByName(String userName) {