mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-09 06:50:32 +08:00
e9950b70d3
This greatly extends the timings improvements I've done in recent commits, and brings timings to fully cover the entire tick. The timings system also now tracks when specific timings causes the server to lose TPS. The timings are also able to be turned on "on demand", meaning you do not need to restart the server to enable them. This commit also overhauls the Entity Activation Range feature, fixing bugs, adding more immunities, and improving the performance of it. It also fixes a regression with a recent Spigot commit that broke the entire Entity Activation Range feature. This commit had to move the Tick Loop patch before timings because there was a change done there to time the entire tick, so lots of renames. These 2 commits had to be bundled together to simplify applying them and reduce redundant conflict resolution.
716 lines
25 KiB
Diff
716 lines
25 KiB
Diff
From 678a6d96738e6fa5ac3cacfc80ab621d3d99554e Mon Sep 17 00:00:00 2001
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From: md_5 <md_5@live.com.au>
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Date: Sat, 23 Feb 2013 08:58:35 +1100
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Subject: [PATCH] Metrics. Rewrite the Metrics system to be closer to the
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Bukkit version.
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---
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src/main/java/org/bukkit/craftbukkit/Spigot.java | 19 +
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src/main/java/org/spigotmc/Metrics.java | 645 +++++++++++++++++++++++
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2 files changed, 664 insertions(+)
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create mode 100644 src/main/java/org/spigotmc/Metrics.java
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diff --git a/src/main/java/org/bukkit/craftbukkit/Spigot.java b/src/main/java/org/bukkit/craftbukkit/Spigot.java
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index 572527f..3171411 100644
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--- a/src/main/java/org/bukkit/craftbukkit/Spigot.java
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+++ b/src/main/java/org/bukkit/craftbukkit/Spigot.java
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@@ -1,10 +1,16 @@
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package org.bukkit.craftbukkit;
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+import java.io.IOException;
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+import java.util.ArrayList;
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import net.minecraft.server.*;
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import org.bukkit.command.SimpleCommandMap;
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import org.bukkit.configuration.file.YamlConfiguration;
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import java.util.List;
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+import java.util.logging.Level;
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+import java.util.logging.Logger;
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+import org.bukkit.Bukkit;
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+import org.spigotmc.Metrics;
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public class Spigot {
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static AxisAlignedBB maxBB = AxisAlignedBB.a(0,0,0,0,0,0);
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@@ -12,6 +18,9 @@ public class Spigot {
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static AxisAlignedBB animalBB = AxisAlignedBB.a(0,0,0,0,0,0);
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static AxisAlignedBB monsterBB = AxisAlignedBB.a(0,0,0,0,0,0);
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+ public static boolean tabPing = false;
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+ private static Metrics metrics;
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+
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public static void initialize(CraftServer server, SimpleCommandMap commandMap, YamlConfiguration configuration) {
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commandMap.register("bukkit", new org.bukkit.craftbukkit.command.TicksPerSecondCommand("tps"));
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@@ -34,6 +43,16 @@ public class Spigot {
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server.getLogger().severe("[Spigot] You should not disable chunk-gc, unexpected behaviour may occur!");
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}
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+ tabPing = configuration.getBoolean("settings.tab-ping", tabPing);
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+
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+ if (metrics == null) {
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+ try {
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+ metrics = new Metrics();
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+ metrics.start();
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+ } catch (IOException ex) {
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+ Bukkit.getServer().getLogger().log(Level.SEVERE, "Could not start metrics service", ex);
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+ }
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+ }
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}
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/**
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diff --git a/src/main/java/org/spigotmc/Metrics.java b/src/main/java/org/spigotmc/Metrics.java
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new file mode 100644
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index 0000000..f1690a2
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/Metrics.java
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@@ -0,0 +1,645 @@
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+/*
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+ * Copyright 2011-2013 Tyler Blair. All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without modification, are
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+ * permitted provided that the following conditions are met:
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+ *
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+ * 1. Redistributions of source code must retain the above copyright notice, this list of
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+ * conditions and the following disclaimer.
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+ *
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+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
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+ * of conditions and the following disclaimer in the documentation and/or other materials
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+ * provided with the distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
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+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
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+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ *
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+ * The views and conclusions contained in the software and documentation are those of the
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+ * authors and contributors and should not be interpreted as representing official policies,
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+ * either expressed or implied, of anybody else.
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+ */
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+package org.spigotmc;
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+
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+import org.bukkit.Bukkit;
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+import org.bukkit.configuration.file.YamlConfiguration;
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+import org.bukkit.configuration.InvalidConfigurationException;
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+import org.bukkit.plugin.Plugin;
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+import org.bukkit.plugin.PluginDescriptionFile;
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+import org.bukkit.scheduler.BukkitTask;
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+
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+import java.io.BufferedReader;
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+import java.io.File;
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+import java.io.IOException;
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+import java.io.InputStreamReader;
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+import java.io.OutputStreamWriter;
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+import java.io.UnsupportedEncodingException;
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+import java.net.Proxy;
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+import java.net.URL;
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+import java.net.URLConnection;
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+import java.net.URLEncoder;
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+import java.util.Collections;
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+import java.util.HashSet;
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+import java.util.Iterator;
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+import java.util.LinkedHashSet;
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+import java.util.Set;
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+import java.util.Timer;
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+import java.util.TimerTask;
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+import java.util.UUID;
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+import java.util.concurrent.TimeUnit;
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+import java.util.logging.Level;
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+import net.minecraft.server.MinecraftServer;
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+
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+/**
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+ * <p> The metrics class obtains data about a plugin and submits statistics about it to the metrics backend. </p> <p>
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+ * Public methods provided by this class: </p>
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+ * <code>
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+ * Graph createGraph(String name); <br/>
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+ * void addCustomData(BukkitMetrics.Plotter plotter); <br/>
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+ * void start(); <br/>
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+ * </code>
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+ */
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+public class Metrics {
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+
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+ /**
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+ * The current revision number
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+ */
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+ private final static int REVISION = 6;
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+ /**
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+ * The base url of the metrics domain
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+ */
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+ private static final String BASE_URL = "http://mcstats.org";
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+ /**
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+ * The url used to report a server's status
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+ */
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+ private static final String REPORT_URL = "/report/%s";
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+ /**
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+ * The separator to use for custom data. This MUST NOT change unless you are hosting your own version of metrics and
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+ * want to change it.
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+ */
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+ private static final String CUSTOM_DATA_SEPARATOR = "~~";
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+ /**
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+ * Interval of time to ping (in minutes)
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+ */
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+ private static final int PING_INTERVAL = 10;
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+ /**
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+ * All of the custom graphs to submit to metrics
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+ */
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+ private final Set<Graph> graphs = Collections.synchronizedSet(new HashSet<Graph>());
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+ /**
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+ * The default graph, used for addCustomData when you don't want a specific graph
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+ */
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+ private final Graph defaultGraph = new Graph("Default");
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+ /**
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+ * The plugin configuration file
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+ */
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+ private final YamlConfiguration configuration;
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+ /**
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+ * The plugin configuration file
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+ */
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+ private final File configurationFile;
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+ /**
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+ * Unique server id
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+ */
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+ private final String guid;
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+ /**
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+ * Debug mode
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+ */
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+ private final boolean debug;
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+ /**
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+ * Lock for synchronization
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+ */
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+ private final Object optOutLock = new Object();
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+ /**
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+ * The scheduled task
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+ */
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+ private volatile Timer task = null;
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+
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+ public Metrics() throws IOException {
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+ // load the config
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+ configurationFile = getConfigFile();
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+ configuration = YamlConfiguration.loadConfiguration(configurationFile);
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+
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+ // add some defaults
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+ configuration.addDefault("opt-out", false);
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+ configuration.addDefault("guid", UUID.randomUUID().toString());
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+ configuration.addDefault("debug", false);
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+
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+ // Do we need to create the file?
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+ if (configuration.get("guid", null) == null) {
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+ configuration.options().header("http://mcstats.org").copyDefaults(true);
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+ configuration.save(configurationFile);
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+ }
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+
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+ // Load the guid then
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+ guid = configuration.getString("guid");
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+ debug = configuration.getBoolean("debug", false);
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+ }
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+
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+ /**
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+ * Construct and create a Graph that can be used to separate specific plotters to their own graphs on the metrics
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+ * website. Plotters can be added to the graph object returned.
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+ *
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+ * @param name The name of the graph
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+ * @return Graph object created. Will never return NULL under normal circumstances unless bad parameters are given
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+ */
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+ public Graph createGraph(final String name) {
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+ if (name == null) {
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+ throw new IllegalArgumentException("Graph name cannot be null");
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+ }
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+
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+ // Construct the graph object
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+ final Graph graph = new Graph(name);
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+
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+ // Now we can add our graph
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+ graphs.add(graph);
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+
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+ // and return back
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+ return graph;
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+ }
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+
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+ /**
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+ * Add a Graph object to BukkitMetrics that represents data for the plugin that should be sent to the backend
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+ *
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+ * @param graph The name of the graph
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+ */
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+ public void addGraph(final Graph graph) {
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+ if (graph == null) {
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+ throw new IllegalArgumentException("Graph cannot be null");
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+ }
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+
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+ graphs.add(graph);
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+ }
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+
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+ /**
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+ * Adds a custom data plotter to the default graph
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+ *
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+ * @param plotter The plotter to use to plot custom data
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+ */
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+ public void addCustomData(final Plotter plotter) {
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+ if (plotter == null) {
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+ throw new IllegalArgumentException("Plotter cannot be null");
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+ }
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+
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+ // Add the plotter to the graph o/
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+ defaultGraph.addPlotter(plotter);
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+
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+ // Ensure the default graph is included in the submitted graphs
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+ graphs.add(defaultGraph);
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+ }
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+
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+ /**
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+ * Start measuring statistics. This will immediately create an async repeating task as the plugin and send the
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+ * initial data to the metrics backend, and then after that it will post in increments of PING_INTERVAL * 1200
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+ * ticks.
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+ *
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+ * @return True if statistics measuring is running, otherwise false.
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+ */
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+ public boolean start() {
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+ synchronized (optOutLock) {
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+ // Did we opt out?
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+ if (isOptOut()) {
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+ return false;
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+ }
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+
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+ // Is metrics already running?
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+ if (task != null) {
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+ return true;
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+ }
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+
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+ // Begin hitting the server with glorious data
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+ task = new Timer("Spigot Metrics Thread", true);
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+
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+ task.scheduleAtFixedRate(new TimerTask() {
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+ private boolean firstPost = true;
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+
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+ public void run() {
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+ try {
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+ // This has to be synchronized or it can collide with the disable method.
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+ synchronized (optOutLock) {
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+ // Disable Task, if it is running and the server owner decided to opt-out
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+ if (isOptOut() && task != null) {
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+ task.cancel();
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+ task = null;
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+ // Tell all plotters to stop gathering information.
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+ for (Graph graph : graphs) {
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+ graph.onOptOut();
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+ }
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+ }
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+ }
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+
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+ // We use the inverse of firstPost because if it is the first time we are posting,
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+ // it is not a interval ping, so it evaluates to FALSE
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+ // Each time thereafter it will evaluate to TRUE, i.e PING!
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+ postPlugin(!firstPost);
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+
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+ // After the first post we set firstPost to false
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+ // Each post thereafter will be a ping
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+ firstPost = false;
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+ } catch (IOException e) {
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+ if (debug) {
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+ Bukkit.getLogger().log(Level.INFO, "[Metrics] " + e.getMessage());
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+ }
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+ }
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+ }
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+ }, 0, TimeUnit.MINUTES.toMillis(PING_INTERVAL));
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+
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+ return true;
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+ }
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+ }
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+
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+ /**
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+ * Has the server owner denied plugin metrics?
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+ *
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+ * @return true if metrics should be opted out of it
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+ */
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+ public boolean isOptOut() {
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+ synchronized (optOutLock) {
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+ try {
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+ // Reload the metrics file
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+ configuration.load(getConfigFile());
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+ } catch (IOException ex) {
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+ if (debug) {
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+ Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
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+ }
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+ return true;
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+ } catch (InvalidConfigurationException ex) {
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+ if (debug) {
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+ Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
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+ }
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+ return true;
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+ }
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+ return configuration.getBoolean("opt-out", false);
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+ }
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+ }
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+
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+ /**
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+ * Enables metrics for the server by setting "opt-out" to false in the config file and starting the metrics task.
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+ *
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+ * @throws java.io.IOException
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+ */
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+ public void enable() throws IOException {
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+ // This has to be synchronized or it can collide with the check in the task.
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+ synchronized (optOutLock) {
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+ // Check if the server owner has already set opt-out, if not, set it.
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+ if (isOptOut()) {
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+ configuration.set("opt-out", false);
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+ configuration.save(configurationFile);
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+ }
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+
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+ // Enable Task, if it is not running
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+ if (task == null) {
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+ start();
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+ }
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+ }
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+ }
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+
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+ /**
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+ * Disables metrics for the server by setting "opt-out" to true in the config file and canceling the metrics task.
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+ *
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+ * @throws java.io.IOException
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+ */
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+ public void disable() throws IOException {
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+ // This has to be synchronized or it can collide with the check in the task.
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+ synchronized (optOutLock) {
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+ // Check if the server owner has already set opt-out, if not, set it.
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+ if (!isOptOut()) {
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+ configuration.set("opt-out", true);
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+ configuration.save(configurationFile);
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+ }
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+
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+ // Disable Task, if it is running
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+ if (task != null) {
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+ task.cancel();
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+ task = null;
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+ }
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+ }
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+ }
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+
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+ /**
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+ * Gets the File object of the config file that should be used to store data such as the GUID and opt-out status
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+ *
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+ * @return the File object for the config file
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+ */
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+ public File getConfigFile() {
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+ // I believe the easiest way to get the base folder (e.g craftbukkit set via -P) for plugins to use
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+ // is to abuse the plugin object we already have
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+ // plugin.getDataFolder() => base/plugins/PluginA/
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+ // pluginsFolder => base/plugins/
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+ // The base is not necessarily relative to the startup directory.
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+ // File pluginsFolder = plugin.getDataFolder().getParentFile();
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+
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+ // return => base/plugins/PluginMetrics/config.yml
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+ return new File(new File((File) MinecraftServer.getServer().options.valueOf("plugins"), "PluginMetrics"), "config.yml");
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+ }
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+
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+ /**
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+ * Generic method that posts a plugin to the metrics website
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+ */
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+ private void postPlugin(final boolean isPing) throws IOException {
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+ // Server software specific section
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+ String pluginName = "Spigot";
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+ boolean onlineMode = Bukkit.getServer().getOnlineMode(); // TRUE if online mode is enabled
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+ String pluginVersion = (Metrics.class.getPackage().getImplementationVersion() != null) ? Metrics.class.getPackage().getImplementationVersion() : "unknown";
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+ String serverVersion = Bukkit.getVersion();
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+ int playersOnline = Bukkit.getServer().getOnlinePlayers().length;
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+
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+ // END server software specific section -- all code below does not use any code outside of this class / Java
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+
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+ // Construct the post data
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+ final StringBuilder data = new StringBuilder();
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+
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+ // The plugin's description file containg all of the plugin data such as name, version, author, etc
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+ data.append(encode("guid")).append('=').append(encode(guid));
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+ encodeDataPair(data, "version", pluginVersion);
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+ encodeDataPair(data, "server", serverVersion);
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+ encodeDataPair(data, "players", Integer.toString(playersOnline));
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+ encodeDataPair(data, "revision", String.valueOf(REVISION));
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+
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+ // New data as of R6
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+ String osname = System.getProperty("os.name");
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+ String osarch = System.getProperty("os.arch");
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+ String osversion = System.getProperty("os.version");
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+ String java_version = System.getProperty("java.version");
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+ int coreCount = Runtime.getRuntime().availableProcessors();
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+
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+ // normalize os arch .. amd64 -> x86_64
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+ if (osarch.equals("amd64")) {
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+ osarch = "x86_64";
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+ }
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+
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+ encodeDataPair(data, "osname", osname);
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+ encodeDataPair(data, "osarch", osarch);
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+ encodeDataPair(data, "osversion", osversion);
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+ encodeDataPair(data, "cores", Integer.toString(coreCount));
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+ encodeDataPair(data, "online-mode", Boolean.toString(onlineMode));
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+ encodeDataPair(data, "java_version", java_version);
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+
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+ // If we're pinging, append it
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+ if (isPing) {
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+ encodeDataPair(data, "ping", "true");
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+ }
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+
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+ // Acquire a lock on the graphs, which lets us make the assumption we also lock everything
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+ // inside of the graph (e.g plotters)
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+ synchronized (graphs) {
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+ final Iterator<Graph> iter = graphs.iterator();
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+
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+ while (iter.hasNext()) {
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+ final Graph graph = iter.next();
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+
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+ for (Plotter plotter : graph.getPlotters()) {
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+ // The key name to send to the metrics server
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+ // The format is C-GRAPHNAME-PLOTTERNAME where separator - is defined at the top
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+ // Legacy (R4) submitters use the format Custom%s, or CustomPLOTTERNAME
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+ final String key = String.format("C%s%s%s%s", CUSTOM_DATA_SEPARATOR, graph.getName(), CUSTOM_DATA_SEPARATOR, plotter.getColumnName());
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|
+
|
|
+ // The value to send, which for the foreseeable future is just the string
|
|
+ // value of plotter.getValue()
|
|
+ final String value = Integer.toString(plotter.getValue());
|
|
+
|
|
+ // Add it to the http post data :)
|
|
+ encodeDataPair(data, key, value);
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+
|
|
+ // Create the url
|
|
+ URL url = new URL(BASE_URL + String.format(REPORT_URL, encode(pluginName)));
|
|
+
|
|
+ // Connect to the website
|
|
+ URLConnection connection;
|
|
+
|
|
+ // Mineshafter creates a socks proxy, so we can safely bypass it
|
|
+ // It does not reroute POST requests so we need to go around it
|
|
+ if (isMineshafterPresent()) {
|
|
+ connection = url.openConnection(Proxy.NO_PROXY);
|
|
+ } else {
|
|
+ connection = url.openConnection();
|
|
+ }
|
|
+
|
|
+ connection.setDoOutput(true);
|
|
+
|
|
+ // Write the data
|
|
+ final OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
|
|
+ writer.write(data.toString());
|
|
+ writer.flush();
|
|
+
|
|
+ // Now read the response
|
|
+ final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
|
|
+ final String response = reader.readLine();
|
|
+
|
|
+ // close resources
|
|
+ writer.close();
|
|
+ reader.close();
|
|
+
|
|
+ if (response == null || response.startsWith("ERR")) {
|
|
+ throw new IOException(response); //Throw the exception
|
|
+ } else {
|
|
+ // Is this the first update this hour?
|
|
+ if (response.contains("OK This is your first update this hour")) {
|
|
+ synchronized (graphs) {
|
|
+ final Iterator<Graph> iter = graphs.iterator();
|
|
+
|
|
+ while (iter.hasNext()) {
|
|
+ final Graph graph = iter.next();
|
|
+
|
|
+ for (Plotter plotter : graph.getPlotters()) {
|
|
+ plotter.reset();
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Check if mineshafter is present. If it is, we need to bypass it to send POST requests
|
|
+ *
|
|
+ * @return true if mineshafter is installed on the server
|
|
+ */
|
|
+ private boolean isMineshafterPresent() {
|
|
+ try {
|
|
+ Class.forName("mineshafter.MineServer");
|
|
+ return true;
|
|
+ } catch (Exception e) {
|
|
+ return false;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * <p>Encode a key/value data pair to be used in a HTTP post request. This INCLUDES a & so the first key/value pair
|
|
+ * MUST be included manually, e.g:</p>
|
|
+ * <code>
|
|
+ * StringBuffer data = new StringBuffer();
|
|
+ * data.append(encode("guid")).append('=').append(encode(guid));
|
|
+ * encodeDataPair(data, "version", description.getVersion());
|
|
+ * </code>
|
|
+ *
|
|
+ * @param buffer the stringbuilder to append the data pair onto
|
|
+ * @param key the key value
|
|
+ * @param value the value
|
|
+ */
|
|
+ private static void encodeDataPair(final StringBuilder buffer, final String key, final String value) throws UnsupportedEncodingException {
|
|
+ buffer.append('&').append(encode(key)).append('=').append(encode(value));
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Encode text as UTF-8
|
|
+ *
|
|
+ * @param text the text to encode
|
|
+ * @return the encoded text, as UTF-8
|
|
+ */
|
|
+ private static String encode(final String text) throws UnsupportedEncodingException {
|
|
+ return URLEncoder.encode(text, "UTF-8");
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Represents a custom graph on the website
|
|
+ */
|
|
+ public static class Graph {
|
|
+
|
|
+ /**
|
|
+ * The graph's name, alphanumeric and spaces only :) If it does not comply to the above when submitted, it is
|
|
+ * rejected
|
|
+ */
|
|
+ private final String name;
|
|
+ /**
|
|
+ * The set of plotters that are contained within this graph
|
|
+ */
|
|
+ private final Set<Plotter> plotters = new LinkedHashSet<Plotter>();
|
|
+
|
|
+ private Graph(final String name) {
|
|
+ this.name = name;
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Gets the graph's name
|
|
+ *
|
|
+ * @return the Graph's name
|
|
+ */
|
|
+ public String getName() {
|
|
+ return name;
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Add a plotter to the graph, which will be used to plot entries
|
|
+ *
|
|
+ * @param plotter the plotter to add to the graph
|
|
+ */
|
|
+ public void addPlotter(final Plotter plotter) {
|
|
+ plotters.add(plotter);
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Remove a plotter from the graph
|
|
+ *
|
|
+ * @param plotter the plotter to remove from the graph
|
|
+ */
|
|
+ public void removePlotter(final Plotter plotter) {
|
|
+ plotters.remove(plotter);
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Gets an <b>unmodifiable</b> set of the plotter objects in the graph
|
|
+ *
|
|
+ * @return an unmodifiable {@link java.util.Set} of the plotter objects
|
|
+ */
|
|
+ public Set<Plotter> getPlotters() {
|
|
+ return Collections.unmodifiableSet(plotters);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public int hashCode() {
|
|
+ return name.hashCode();
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public boolean equals(final Object object) {
|
|
+ if (!(object instanceof Graph)) {
|
|
+ return false;
|
|
+ }
|
|
+
|
|
+ final Graph graph = (Graph) object;
|
|
+ return graph.name.equals(name);
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Called when the server owner decides to opt-out of BukkitMetrics while the server is running.
|
|
+ */
|
|
+ protected void onOptOut() {
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Interface used to collect custom data for a plugin
|
|
+ */
|
|
+ public static abstract class Plotter {
|
|
+
|
|
+ /**
|
|
+ * The plot's name
|
|
+ */
|
|
+ private final String name;
|
|
+
|
|
+ /**
|
|
+ * Construct a plotter with the default plot name
|
|
+ */
|
|
+ public Plotter() {
|
|
+ this("Default");
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Construct a plotter with a specific plot name
|
|
+ *
|
|
+ * @param name the name of the plotter to use, which will show up on the website
|
|
+ */
|
|
+ public Plotter(final String name) {
|
|
+ this.name = name;
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Get the current value for the plotted point. Since this function defers to an external function it may or may
|
|
+ * not return immediately thus cannot be guaranteed to be thread friendly or safe. This function can be called
|
|
+ * from any thread so care should be taken when accessing resources that need to be synchronized.
|
|
+ *
|
|
+ * @return the current value for the point to be plotted.
|
|
+ */
|
|
+ public abstract int getValue();
|
|
+
|
|
+ /**
|
|
+ * Get the column name for the plotted point
|
|
+ *
|
|
+ * @return the plotted point's column name
|
|
+ */
|
|
+ public String getColumnName() {
|
|
+ return name;
|
|
+ }
|
|
+
|
|
+ /**
|
|
+ * Called after the website graphs have been updated
|
|
+ */
|
|
+ public void reset() {
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public int hashCode() {
|
|
+ return getColumnName().hashCode();
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public boolean equals(final Object object) {
|
|
+ if (!(object instanceof Plotter)) {
|
|
+ return false;
|
|
+ }
|
|
+
|
|
+ final Plotter plotter = (Plotter) object;
|
|
+ return plotter.name.equals(name) && plotter.getValue() == getValue();
|
|
+ }
|
|
+ }
|
|
+}
|
|
\ No newline at end of file
|
|
--
|
|
1.8.1.1
|
|
|