StoredUserList.java

net.minecraft.server.players.StoredUserList

信息

• 全限定名：net.minecraft.server.players.StoredUserList
• 类型：public abstract class
• 包：net.minecraft.server.players
• 源码路径：src/main/java/net/minecraft/server/players/StoredUserList.java
• 起始行号：L27
• 职责：

  TODO

字段/常量

• LOGGER

  • 类型: Logger
  • 修饰符: private static final
  • 源码定位: L28
  • 说明:

    TODO

• GSON

  • 类型: Gson
  • 修饰符: private static final
  • 源码定位: L29
  • 说明:

    TODO

• file

  • 类型: File
  • 修饰符: private final
  • 源码定位: L30
  • 说明:

    TODO

• map

  • 类型: Map<String,V>
  • 修饰符: private final
  • 源码定位: L31
  • 说明:

    TODO

• notificationService

  • 类型: NotificationService
  • 修饰符: protected final
  • 源码定位: L32
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public StoredUserList(File file, NotificationService notificationService) @ L34

• 构造器名：StoredUserList
• 源码定位：L34
• 修饰符：public

参数:

• file: File
• notificationService: NotificationService

说明:

TODO

方法

下面的方法块按源码顺序生成。

public File getFile() @ L39

• 方法名：getFile
• 源码定位：L39
• 返回类型：File
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean add(V infos) @ L43

• 方法名：add
• 源码定位：L43
• 返回类型：boolean
• 修饰符：public

参数:

• infos: V

说明:

TODO

public V get(K user) @ L61

• 方法名：get
• 源码定位：L61
• 返回类型：V
• 修饰符：public

参数:

• user: K

说明:

TODO

public boolean remove(K user) @ L66

• 方法名：remove
• 源码定位：L66
• 返回类型：boolean
• 修饰符：public

参数:

• user: K

说明:

TODO

public boolean remove(StoredUserEntry<K> infos) @ L81

• 方法名：remove
• 源码定位：L81
• 返回类型：boolean
• 修饰符：public

参数:

• infos: StoredUserEntry

说明:

TODO

public void clear() @ L85

• 方法名：clear
• 源码定位：L85
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

public String[] getUserList() @ L95

• 方法名：getUserList
• 源码定位：L95
• 返回类型：String[]
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean isEmpty() @ L99

• 方法名：isEmpty
• 源码定位：L99
• 返回类型：boolean
• 修饰符：public

参数:

• 无

说明:

TODO

protected String getKeyForUser(K user) @ L103

• 方法名：getKeyForUser
• 源码定位：L103
• 返回类型：String
• 修饰符：protected

参数:

• user: K

说明:

TODO

protected boolean contains(K user) @ L107

• 方法名：contains
• 源码定位：L107
• 返回类型：boolean
• 修饰符：protected

参数:

• user: K

说明:

TODO

private void removeExpired() @ L111

• 方法名：removeExpired
• 源码定位：L111
• 返回类型：void
• 修饰符：private

参数:

• 无

说明:

TODO

protected abstract StoredUserEntry<K> createEntry(JsonObject object) @ L125

• 方法名：createEntry
• 源码定位：L125
• 返回类型：StoredUserEntry
• 修饰符：protected abstract

参数:

• object: JsonObject

说明:

TODO

public Collection<V> getEntries() @ L127

• 方法名：getEntries
• 源码定位：L127
• 返回类型：Collection
• 修饰符：public

参数:

• 无

说明:

TODO

public void save() @ L131

• 方法名：save
• 源码定位：L131
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

public void load() @ L140

• 方法名：load
• 源码定位：L140
• 返回类型：void
• 修饰符：public

参数:

• 无

说明:

TODO

代码

public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
    private static final Logger LOGGER = LogUtils.getLogger();
    private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create();
    private final File file;
    private final Map<String, V> map = Maps.newHashMap();
    protected final NotificationService notificationService;
 
    public StoredUserList(File file, NotificationService notificationService) {
        this.file = file;
        this.notificationService = notificationService;
    }
 
    public File getFile() {
        return this.file;
    }
 
    public boolean add(V infos) {
        String keyForUser = this.getKeyForUser(infos.getUser());
        V previous = this.map.get(keyForUser);
        if (infos.equals(previous)) {
            return false;
        } else {
            this.map.put(keyForUser, infos);
 
            try {
                this.save();
            } catch (IOException var5) {
                LOGGER.warn("Could not save the list after adding a user.", (Throwable)var5);
            }
 
            return true;
        }
    }
 
    public @Nullable V get(K user) {
        this.removeExpired();
        return this.map.get(this.getKeyForUser(user));
    }
 
    public boolean remove(K user) {
        V removed = this.map.remove(this.getKeyForUser(user));
        if (removed == null) {
            return false;
        } else {
            try {
                this.save();
            } catch (IOException var4) {
                LOGGER.warn("Could not save the list after removing a user.", (Throwable)var4);
            }
 
            return true;
        }
    }
 
    public boolean remove(StoredUserEntry<K> infos) {
        return this.remove(Objects.requireNonNull(infos.getUser()));
    }
 
    public void clear() {
        this.map.clear();
 
        try {
            this.save();
        } catch (IOException var2) {
            LOGGER.warn("Could not save the list after removing a user.", (Throwable)var2);
        }
    }
 
    public String[] getUserList() {
        return this.map.keySet().toArray(new String[0]);
    }
 
    public boolean isEmpty() {
        return this.map.isEmpty();
    }
 
    protected String getKeyForUser(K user) {
        return user.toString();
    }
 
    protected boolean contains(K user) {
        return this.map.containsKey(this.getKeyForUser(user));
    }
 
    private void removeExpired() {
        List<K> toRemove = Lists.newArrayList();
 
        for (V entry : this.map.values()) {
            if (entry.hasExpired()) {
                toRemove.add(entry.getUser());
            }
        }
 
        for (K user : toRemove) {
            this.map.remove(this.getKeyForUser(user));
        }
    }
 
    protected abstract StoredUserEntry<K> createEntry(final JsonObject object);
 
    public Collection<V> getEntries() {
        return this.map.values();
    }
 
    public void save() throws IOException {
        JsonArray result = new JsonArray();
        this.map.values().stream().map(entry -> Util.make(new JsonObject(), entry::serialize)).forEach(result::add);
 
        try (BufferedWriter writer = Files.newWriter(this.file, StandardCharsets.UTF_8)) {
            GSON.toJson(result, GSON.newJsonWriter(writer));
        }
    }
 
    public void load() throws IOException {
        if (this.file.exists()) {
            try (BufferedReader reader = Files.newReader(this.file, StandardCharsets.UTF_8)) {
                this.map.clear();
                JsonArray contents = GSON.fromJson(reader, JsonArray.class);
                if (contents == null) {
                    return;
                }
 
                for (JsonElement element : contents) {
                    JsonObject object = GsonHelper.convertToJsonObject(element, "entry");
                    StoredUserEntry<K> entry = this.createEntry(object);
                    if (entry.getUser() != null) {
                        this.map.put(this.getKeyForUser(entry.getUser()), (V)entry);
                    }
                }
            }
        }
    }
}

引用的其他类

• NotificationService

  • 引用位置: 参数/字段

• StoredUserEntry

  • 引用位置: 参数/返回值

• GsonHelper

  • 引用位置: 方法调用
  • 关联成员: GsonHelper.convertToJsonObject()

• Util

  • 引用位置: 方法调用
  • 关联成员: Util.make()

• EventLogDirectory

  • 引用位置: 参数/字段/返回值