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RedisBungee/src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungeeAPI.java

307 lines
11 KiB
Java

/**
* Copyright © 2013 tuxed <write@imaginarycode.com>
* This work is free. You can redistribute it and/or modify it under the
* terms of the Do What The Fuck You Want To Public License, Version 2,
* as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
*/
package com.imaginarycode.minecraft.redisbungee;
import com.google.common.base.Function;
import com.google.common.base.Preconditions;
import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Multimap;
import lombok.NonNull;
import net.md_5.bungee.api.config.ServerInfo;
import java.net.InetAddress;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.UUID;
/**
* This class exposes some internal RedisBungee functions. You obtain an instance of this object by invoking {@link RedisBungee#getApi()}.
*
* @author tuxed
* @since 0.2.3
*/
public class RedisBungeeAPI {
private final RedisBungee plugin;
private final List<String> reservedChannels;
RedisBungeeAPI(RedisBungee plugin) {
this.plugin = plugin;
this.reservedChannels = ImmutableList.of(
"redisbungee-allservers",
"redisbungee-" + RedisBungee.getConfiguration().getServerId(),
"redisbungee-data"
);
}
/**
* Get a combined count of all players on this network.
*
* @return a count of all players found
*/
public final int getPlayerCount() {
return plugin.getCount();
}
/**
* Get the last time a player was on. If the player is currently online, this will return 0. If the player has not been recorded,
* this will return -1. Otherwise it will return a value in milliseconds.
*
* @param player a player name
* @return the last time a player was on, if online returns a 0
*/
public final long getLastOnline(@NonNull UUID player) {
return plugin.getDataManager().getLastOnline(player);
}
/**
* Get the server where the specified player is playing. This function also deals with the case of local players
* as well, and will return local information on them.
*
* @param player a player name
* @return a {@link net.md_5.bungee.api.config.ServerInfo} for the server the player is on.
*/
public final ServerInfo getServerFor(@NonNull UUID player) {
String server = plugin.getDataManager().getServer(player);
return plugin.getProxy().getServerInfo(server);
}
/**
* Get a combined list of players on this network.
* <p>
* <strong>Note that this function returns an instance of {@link com.google.common.collect.ImmutableSet}.</strong>
*
* @return a Set with all players found
*/
public final Set<UUID> getPlayersOnline() {
return plugin.getPlayers();
}
/**
* Get a combined list of players on this network, as a collection of usernames.
* <p>
* <strong>Note that this function returns an immutable {@link java.util.Collection}, and usernames
* are lazily calculated (but cached, see the contract of {@link #getNameFromUuid(java.util.UUID)}).</strong>
*
* @return a Set with all players found
* @see #getNameFromUuid(java.util.UUID)
* @since 0.3
*/
public final Collection<String> getHumanPlayersOnline() {
return Collections2.transform(((ImmutableSet<UUID>) getPlayersOnline()).asList(), new Function<UUID, String>() {
@Override
public String apply(UUID uuid) {
return getNameFromUuid(uuid, false);
}
});
}
/**
* Get a full list of players on all servers.
*
* @return a immutable Multimap with all players found on this server
* @since 0.2.5
*/
public final Multimap<String, UUID> getServerToPlayers() {
return plugin.serversToPlayers();
}
/**
* Get a list of players on the server with the given name.
*
* @param server a server name
* @return a Set with all players found on this server
*/
public final Set<UUID> getPlayersOnServer(@NonNull String server) {
return plugin.getPlayersOnServer(server);
}
/**
* Convenience method: Checks if the specified player is online.
*
* @param player a player name
* @return if the player is online
*/
public final boolean isPlayerOnline(@NonNull UUID player) {
return getLastOnline(player) == 0;
}
/**
* Get the {@link java.net.InetAddress} associated with this player.
*
* @param player the player to fetch the IP for
* @return an {@link java.net.InetAddress} if the player is online, null otherwise
* @since 0.2.4
*/
public final InetAddress getPlayerIp(@NonNull UUID player) {
return plugin.getDataManager().getIp(player);
}
/**
* Get the RedisBungee proxy ID this player is connected to.
*
* @param player the player to fetch the IP for
* @return the proxy the player is connected to, or null if they are offline
* @since 0.3.3
*/
public final String getProxy(@NonNull UUID player) {
return plugin.getDataManager().getProxy(player);
}
/**
* Sends a proxy command to all proxies.
*
* @param command the command to send and execute
* @see #sendProxyCommand(String, String)
* @since 0.2.5
*/
public final void sendProxyCommand(@NonNull String command) {
plugin.sendProxyCommand("allservers", command);
}
/**
* Sends a proxy command to the proxy with the given ID. "allservers" means all proxies.
*
* @param proxyId a proxy ID
* @param command the command to send and execute
* @see #getServerId()
* @see #getAllServers()
* @since 0.2.5
*/
public final void sendProxyCommand(@NonNull String proxyId, @NonNull String command) {
plugin.sendProxyCommand(proxyId, command);
}
/**
* Sends a message to a PubSub channel. The channel has to be subscribed to on this, or another redisbungee instance for {@link com.imaginarycode.minecraft.redisbungee.events.PubSubMessageEvent} to fire.
*
* @param channel The PubSub channel
* @param message the message body to send
* @since 0.3.3
*/
public final void sendChannelMessage(@NonNull String channel, @NonNull String message) {
plugin.sendChannelMessage(channel, message);
}
/**
* Get the current BungeeCord server ID for this server.
*
* @return the current server ID
* @see #getAllServers()
* @since 0.2.5
*/
public final String getServerId() {
return RedisBungee.getConfiguration().getServerId();
}
/**
* Get all the linked proxies in this network.
*
* @return the list of all proxies
* @see #getServerId()
* @since 0.2.5
*/
public final List<String> getAllServers() {
return plugin.getServerIds();
}
/**
* Register (a) PubSub channel(s), so that you may handle {@link com.imaginarycode.minecraft.redisbungee.events.PubSubMessageEvent} for it.
*
* @param channels the channels to register
* @since 0.3
*/
public final void registerPubSubChannels(String... channels) {
RedisBungee.getPubSubListener().addChannel(channels);
}
/**
* Unregister (a) PubSub channel(s).
*
* @param channels the channels to unregister
* @since 0.3
*/
public final void unregisterPubSubChannels(String... channels) {
for (String channel : channels) {
Preconditions.checkArgument(!reservedChannels.contains(channel), "attempting to unregister internal channel");
}
RedisBungee.getPubSubListener().removeChannel(channels);
}
/**
* Fetch a name from the specified UUID. UUIDs are cached locally and in Redis. This function falls back to Mojang
* as a last resort, so calls <strong>may</strong> be blocking.
* <p>
* For the common use case of translating a list of UUIDs into names, use {@link #getHumanPlayersOnline()}
* as the efficiency of that function is slightly greater as the names are calculated lazily.
* <p>
* If performance is a concern, use {@link #getNameFromUuid(java.util.UUID, boolean)} as this allows you to disable Mojang lookups.
*
* @param uuid the UUID to fetch the name for
* @return the name for the UUID
* @since 0.3
*/
public final String getNameFromUuid(@NonNull UUID uuid) {
return getNameFromUuid(uuid, true);
}
/**
* Fetch a name from the specified UUID. UUIDs are cached locally and in Redis. This function can fall back to Mojang
* as a last resort if {@code expensiveLookups} is true, so calls <strong>may</strong> be blocking.
* <p>
* For the common use case of translating the list of online players into names, use {@link #getHumanPlayersOnline()}
* as the efficiency of that function is slightly greater as the names are calculated lazily.
* <p>
* If performance is a concern, set {@code expensiveLookups} to false as this will disable lookups via Mojang.
*
* @param uuid the UUID to fetch the name for
* @param expensiveLookups whether or not to perform potentially expensive lookups
* @return the name for the UUID
* @since 0.3.2
*/
public final String getNameFromUuid(@NonNull UUID uuid, boolean expensiveLookups) {
return plugin.getUuidTranslator().getNameFromUuid(uuid, expensiveLookups);
}
/**
* Fetch a UUID from the specified name. Names are cached locally and in Redis. This function falls back to Mojang
* as a last resort, so calls <strong>may</strong> be blocking.
* <p>
* If performance is a concern, see {@link #getUuidFromName(String, boolean)}, which disables the following functions:
* <ul>
* <li>Searching local entries case-insensitively</li>
* <li>Searching Mojang</li>
* </ul>
*
* @param name the UUID to fetch the name for
* @return the UUID for the name
* @since 0.3
*/
public final UUID getUuidFromName(@NonNull String name) {
return getUuidFromName(name, true);
}
/**
* Fetch a UUID from the specified name. Names are cached locally and in Redis. This function falls back to Mojang
* as a last resort if {@code expensiveLookups} is true, so calls <strong>may</strong> be blocking.
* <p>
* If performance is a concern, set {@code expensiveLookups} to false to disable searching Mojang and searching for usernames
* case-insensitively.
*
* @param name the UUID to fetch the name for
* @param expensiveLookups whether or not to perform potentially expensive lookups
* @return the UUID for the name
* @since 0.3.2
*/
public final UUID getUuidFromName(@NonNull String name, boolean expensiveLookups) {
return plugin.getUuidTranslator().getTranslatedUuid(name, expensiveLookups);
}
}