Limework/RedisBungee
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Code Releases Activity

More robust error checking.

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This commit is contained in:
Tux 2014-01-25 19:06:33 -05:00
parent b604434091
commit 5a28cd9ede
1 changed files with 101 additions and 72 deletions
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83
src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungee.java
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@ -7,10 +7,8 @@
package com.imaginarycode.minecraft.redisbungee; package com.imaginarycode.minecraft.redisbungee;
import com.google.common.base.Joiner; import com.google.common.base.Joiner;
import com.google.common.collect.HashMultimap; import com.google.common.collect.*;
import com.google.common.collect.ImmutableMultimap; import com.google.common.io.ByteArrayDataInput;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Multimap;
import com.google.common.io.ByteArrayDataOutput; import com.google.common.io.ByteArrayDataOutput;
import com.google.common.io.ByteStreams; import com.google.common.io.ByteStreams;
import lombok.NonNull; import lombok.NonNull;
@ -44,11 +42,11 @@ import static com.google.common.base.Preconditions.*;
* The only function of interest is {@link #getApi()}, which exposes some functions in this class. * The only function of interest is {@link #getApi()}, which exposes some functions in this class.
*/ */
public final class RedisBungee extends Plugin implements Listener { public final class RedisBungee extends Plugin implements Listener {
private static final ServerPing.PlayerInfo[] EMPTY_PLAYERINFO = new ServerPing.PlayerInfo[]{};
private static Configuration configuration; private static Configuration configuration;
private JedisPool pool; private JedisPool pool;
private static RedisBungeeAPI api; private static RedisBungeeAPI api;
private PubSubListener psl = null; private PubSubListener psl = null;
private static List<String> serverIds;
/** /**
* Fetch the {@link RedisBungeeAPI} object created on plugin start. * Fetch the {@link RedisBungeeAPI} object created on plugin start.
@ -63,14 +61,18 @@ public final class RedisBungee extends Plugin implements Listener {
return configuration; return configuration;
} }
static List<String> getServerIds() {
return serverIds;
}
final Multimap<String, String> serversToPlayers() { final Multimap<String, String> serversToPlayers() {
Multimap<String, String> serverToPlayers = HashMultimap.create(); ImmutableMultimap.Builder<String, String> multimapBuilder = ImmutableMultimap.builder();
for (String p : getPlayers()) { for (String p : getPlayers()) {
ServerInfo si = getServerFor(p); ServerInfo si = getServerFor(p);
if (si != null) if (si != null)
serverToPlayers.put(si.getName(), p); multimapBuilder = multimapBuilder.put(si.getName(), p);
} }
return ImmutableMultimap.copyOf(serverToPlayers); return multimapBuilder.build();
} }
final int getCount() { final int getCount() {
@ -78,10 +80,15 @@ public final class RedisBungee extends Plugin implements Listener {
if (pool != null) { if (pool != null) {
Jedis rsc = pool.getResource(); Jedis rsc = pool.getResource();
try { try {
for (String i : configuration.getStringList("linked-servers")) { for (String i : serverIds) {
if (i.equals(configuration.getString("server-id"))) continue; if (i.equals(configuration.getString("server-id"))) continue;
if (rsc.exists("server:" + i + ":playerCount")) if (rsc.exists("server:" + i + ":playerCount"))
try {
c += Integer.valueOf(rsc.get("server:" + i + ":playerCount")); c += Integer.valueOf(rsc.get("server:" + i + ":playerCount"));
} catch (NumberFormatException e) {
getLogger().severe("I found a funny number for " + i + "'s player count. Resetting it to 0.");
rsc.set("server:" + i + ":playerCount", "0");
}
} }
} finally { } finally {
pool.returnResource(rsc); pool.returnResource(rsc);
@ -91,26 +98,28 @@ public final class RedisBungee extends Plugin implements Listener {
} }
final Set<String> getLocalPlayers() { final Set<String> getLocalPlayers() {
Set<String> players = new HashSet<>(); ImmutableSet.Builder<String> setBuilder = ImmutableSet.builder();
for (ProxiedPlayer pp : getProxy().getPlayers()) for (ProxiedPlayer pp : getProxy().getPlayers())
players.add(pp.getName()); setBuilder = setBuilder.add(pp.getName());
return players; return setBuilder.build();
} }
final Set<String> getPlayers() { final Set<String> getPlayers() {
Set<String> players = getLocalPlayers(); ImmutableSet.Builder<String> setBuilder = ImmutableSet.<String>builder().addAll(getLocalPlayers());
if (pool != null) { if (pool != null) {
Jedis rsc = pool.getResource(); Jedis rsc = pool.getResource();
try { try {
for (String i : configuration.getStringList("linked-servers")) { for (String i : serverIds) {
if (i.equals(configuration.getString("server-id"))) continue; if (i.equals(configuration.getString("server-id"))) continue;
players.addAll(rsc.smembers("server:" + i + ":usersOnline")); Set<String> users = rsc.smembers("server:" + i + ":usersOnline");
if (users != null && !users.isEmpty())
setBuilder = setBuilder.addAll(users);
} }
} finally { } finally {
pool.returnResource(rsc); pool.returnResource(rsc);
} }
} }
return ImmutableSet.copyOf(players); return setBuilder.build();
} }
final Set<String> getPlayersOnServer(@NonNull String server) { final Set<String> getPlayersOnServer(@NonNull String server) {
@ -140,7 +149,28 @@ public final class RedisBungee extends Plugin implements Listener {
Jedis tmpRsc = pool.getResource(); Jedis tmpRsc = pool.getResource();
try { try {
if (tmpRsc.hexists("player:" + name, "online")) if (tmpRsc.hexists("player:" + name, "online"))
try {
time = Long.valueOf(tmpRsc.hget("player:" + name, "online")); time = Long.valueOf(tmpRsc.hget("player:" + name, "online"));
} catch (NumberFormatException e) {
getLogger().info("I found a funny number for when " + name + " was last online!");
boolean found = false;
for (String proxyId : serverIds) {
if (proxyId.equals(configuration.getString("server-id"))) continue;
if (tmpRsc.sismember("server:" + proxyId + ":usersOnline", name)) {
found = true;
break;
}
}
String value = "0";
if (!found) {
value = String.valueOf(System.currentTimeMillis());
getLogger().info(name + " isn't online. Setting to current time.");
} else {
getLogger().info(name + " is online. Setting to 0. Please check your BungeeCord instances.");
getLogger().info("If they are working properly, and this error does not resolve in a few minutes, please let Tux know!");
}
tmpRsc.hset("player:" + name, "online", value);
}
} finally { } finally {
pool.returnResource(tmpRsc); pool.returnResource(tmpRsc);
} }
@ -167,7 +197,7 @@ public final class RedisBungee extends Plugin implements Listener {
} }
final void sendProxyCommand(@NonNull String proxyId, @NonNull String command) { final void sendProxyCommand(@NonNull String proxyId, @NonNull String command) {
checkArgument(configuration.getStringList("linked-servers").contains(proxyId) || proxyId.equals("allservers"), "proxyId is invalid"); checkArgument(serverIds.contains(proxyId) || proxyId.equals("allservers"), "proxyId is invalid");
Jedis jedis = pool.getResource(); Jedis jedis = pool.getResource();
try { try {
jedis.publish("redisbungee-" + proxyId, command); jedis.publish("redisbungee-" + proxyId, command);
@ -193,7 +223,7 @@ public final class RedisBungee extends Plugin implements Listener {
for (String member : tmpRsc.smembers("server:" + configuration.getString("server-id") + ":usersOnline")) { for (String member : tmpRsc.smembers("server:" + configuration.getString("server-id") + ":usersOnline")) {
// Are they simply on a different proxy? // Are they simply on a different proxy?
boolean found = false; boolean found = false;
for (String proxyId : configuration.getStringList("linked-servers")) { for (String proxyId : serverIds) {
if (proxyId.equals(configuration.getString("server-id"))) continue; if (proxyId.equals(configuration.getString("server-id"))) continue;
if (tmpRsc.sismember("server:" + proxyId + ":usersOnline", member)) { if (tmpRsc.sismember("server:" + proxyId + ":usersOnline", member)) {
found = true; found = true;
@ -240,7 +270,7 @@ public final class RedisBungee extends Plugin implements Listener {
if (!players.contains(member)) { if (!players.contains(member)) {
// Are they simply on a different proxy? // Are they simply on a different proxy?
boolean found = false; boolean found = false;
for (String proxyId : configuration.getStringList("linked-servers")) { for (String proxyId : serverIds) {
if (proxyId.equals(configuration.getString("server-id"))) continue; if (proxyId.equals(configuration.getString("server-id"))) continue;
if (tmpRsc.sismember("server:" + proxyId + ":usersOnline", member)) { if (tmpRsc.sismember("server:" + proxyId + ":usersOnline", member)) {
// Just clean up the set. // Just clean up the set.
@ -260,7 +290,7 @@ public final class RedisBungee extends Plugin implements Listener {
pool.returnResource(tmpRsc); pool.returnResource(tmpRsc);
} }
} }
}, 1, 5, TimeUnit.MINUTES); }, 1, 3, TimeUnit.MINUTES);
} }
getProxy().registerChannel("RedisBungee"); getProxy().registerChannel("RedisBungee");
} }
@ -319,6 +349,8 @@ public final class RedisBungee extends Plugin implements Listener {
throw new RuntimeException("linked-servers is not specified in the configuration or is empty"); throw new RuntimeException("linked-servers is not specified in the configuration or is empty");
} }
serverIds = ImmutableList.copyOf(configuration.getStringList("linked-servers"));
if (redisServer != null) { if (redisServer != null) {
if (!redisServer.equals("")) { if (!redisServer.equals("")) {
pool = new JedisPool(new JedisPoolConfig(), redisServer, redisPort, Protocol.DEFAULT_TIMEOUT, redisPassword); pool = new JedisPool(new JedisPoolConfig(), redisServer, redisPort, Protocol.DEFAULT_TIMEOUT, redisPassword);
@ -351,7 +383,7 @@ public final class RedisBungee extends Plugin implements Listener {
if (pool != null) { if (pool != null) {
Jedis rsc = pool.getResource(); Jedis rsc = pool.getResource();
try { try {
for (String server : configuration.getStringList("linked-servers")) { for (String server : serverIds) {
if (rsc.sismember("server:" + server + ":usersOnline", event.getConnection().getName())) { if (rsc.sismember("server:" + server + ":usersOnline", event.getConnection().getName())) {
event.setCancelled(true); event.setCancelled(true);
event.setCancelReason("You are already logged on to this server."); event.setCancelReason("You are already logged on to this server.");
@ -419,7 +451,7 @@ public final class RedisBungee extends Plugin implements Listener {
} }
reply.setPlayers(new ServerPing.Players(old.getPlayers().getMax(), players.size(), info)); reply.setPlayers(new ServerPing.Players(old.getPlayers().getMax(), players.size(), info));
} else { } else {
reply.setPlayers(new ServerPing.Players(old.getPlayers().getMax(), getCount(), EMPTY_PLAYERINFO)); reply.setPlayers(new ServerPing.Players(old.getPlayers().getMax(), getCount(), null));
} }
reply.setDescription(old.getDescription()); reply.setDescription(old.getDescription());
reply.setFavicon(old.getFavicon()); reply.setFavicon(old.getFavicon());
@ -430,9 +462,8 @@ public final class RedisBungee extends Plugin implements Listener {
@EventHandler @EventHandler
public void onPluginMessage(PluginMessageEvent event) { public void onPluginMessage(PluginMessageEvent event) {
if (event.getTag().equals("RedisBungee") && event.getSender() instanceof Server) { if (event.getTag().equals("RedisBungee") && event.getSender() instanceof Server) {
DataInput in = ByteStreams.newDataInput(event.getData()); ByteArrayDataInput in = ByteStreams.newDataInput(event.getData());
try {
String subchannel = in.readUTF(); String subchannel = in.readUTF();
ByteArrayDataOutput out = ByteStreams.newDataOutput(); ByteArrayDataOutput out = ByteStreams.newDataOutput();
String type; String type;
@ -480,9 +511,6 @@ public final class RedisBungee extends Plugin implements Listener {
} }
((Server) event.getSender()).sendData("RedisBungee", out.toByteArray()); ((Server) event.getSender()).sendData("RedisBungee", out.toByteArray());
} catch (IOException e) {
throw new RuntimeException("Unable to process plugin message from " + event.getSender().getAddress(), e);
}
} }
} }
@ -524,6 +552,7 @@ public final class RedisBungee extends Plugin implements Listener {
} else { } else {
cmd = s2; cmd = s2;
} }
if (s2.trim().length() == 0) return;
getLogger().info("Invoking command from PubSub: /" + s2); getLogger().info("Invoking command from PubSub: /" + s2);
getProxy().getPluginManager().dispatchCommand(RedisBungeeCommandSender.instance, cmd); getProxy().getPluginManager().dispatchCommand(RedisBungeeCommandSender.instance, cmd);
} }