Initial implementation of Supervisor.

EssentialsReportContext provides all online players' userdata files if report level is 400 or higher, as well as config.yml if report level is over 200.

Essentials/pom.xml

@@ -133,11 +133,21 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <dependency>
+            <groupId>com.supaham.supervisor</groupId>
+            <artifactId>supervisor-bukkit</artifactId>
+            <version>1.3-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
     <repositories>
         <repository>
             <id>vault-repo</id>
             <url>http://nexus.hc.to/content/repositories/pub_releases</url>
         </repository>
+        <repository>
+            <id>ender-zone-repo</id>
+            <url>http://ci.ender.zone/plugin/repository/everything/</url>
+        </repository>
     </repositories>
 </project>

Essentials/src/com/earth2me/essentials/Essentials.java

@@ -24,6 +24,7 @@ import com.earth2me.essentials.register.payment.Methods;
 import com.earth2me.essentials.signs.SignBlockListener;
 import com.earth2me.essentials.signs.SignEntityListener;
 import com.earth2me.essentials.signs.SignPlayerListener;
+import com.earth2me.essentials.supervisor.EssentialsReportContext;
 import com.earth2me.essentials.textreader.IText;
 import com.earth2me.essentials.textreader.KeywordReplacer;
 import com.earth2me.essentials.textreader.SimpleTextInput;
@@ -257,6 +258,10 @@ public class Essentials extends JavaPlugin implements net.ess3.api.IEssentials {
                 // Failed to submit the stats :-(
             }
 
+            if (getServer().getPluginManager().getPlugin("Supervisor") != null) {
+                EssentialsReportContext.load(this);
+            }
+
             final String timeroutput = execTimer.end();
             if (getSettings().isDebug()) {
                 LOGGER.log(Level.INFO, "Essentials load {0}", timeroutput);

Essentials/src/com/earth2me/essentials/UserData.java

@@ -911,4 +911,8 @@ public abstract class UserData extends PlayerExtension implements IConf {
     public void stopTransaction() {
         config.stopTransaction();
     }
+
+    public EssentialsUserConf getConfig() {
+        return config;
+    }
 }

Essentials/src/com/earth2me/essentials/supervisor/EssentialsReportContext.java

@@ -0,0 +1,98 @@
+package com.earth2me.essentials.supervisor;
+
+import com.earth2me.essentials.Essentials;
+import com.earth2me.essentials.User;
+import com.earth2me.essentials.UserMap;
+import com.supaham.supervisor.bukkit.SupervisorPlugin;
+import com.supaham.supervisor.report.AbstractReportContextEntry;
+import com.supaham.supervisor.report.ReportContext;
+import com.supaham.supervisor.report.ReportContextEntry;
+import com.supaham.supervisor.report.ReportSpecifications;
+import com.supaham.supervisor.report.ReportSpecifications.ReportLevel;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Map;
+
+import javax.annotation.Nonnull;
+
+public class EssentialsReportContext extends ReportContext {
+
+    private static final Method getNamesMethod;
+    
+    private final Essentials ess;
+    
+    static {
+        try {
+            getNamesMethod = UserMap.class.getDeclaredMethod("getNames");
+        } catch (NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    
+    public static void load(Essentials ess) {
+        SupervisorPlugin.get().registerContext(ess, new EssentialsReportContext(ess));
+    }
+
+    public EssentialsReportContext(Essentials ess) {
+        super("essentialsx", "EssentialsX", "1");
+        this.ess = ess;
+    }
+
+    @Override
+    public ReportContextEntry createEntry(@Nonnull ReportSpecifications specs) {
+        return new EssentialsContext(this, specs);
+    }
+
+    private final class EssentialsContext extends AbstractReportContextEntry {
+
+        public EssentialsContext(@Nonnull ReportContext parentContext, @Nonnull ReportSpecifications reportSpecifications) {
+            super(parentContext, reportSpecifications);
+        }
+
+        @Override
+        public void run() {
+            append("users_count", ess.getUserMap().getUniqueUsers());
+            uuidMapCount();
+
+            if (getReportLevel() >= ReportLevel.NORMAL) {
+                userdata();
+            }
+
+            if (getReportLevel() > ReportLevel.BRIEF) {
+                config();
+            }
+        }
+
+        private void uuidMapCount() {
+            try {
+                getNamesMethod.setAccessible(true);
+                append("uuidmap_count", ((Map) getNamesMethod.invoke(ess.getUserMap())).size());
+                getNamesMethod.setAccessible(false);
+            } catch (IllegalAccessException | InvocationTargetException e) {
+                e.printStackTrace();
+            }
+        }
+
+        private void userdata() {
+            for (User user : ess.getOnlineUsers()) {
+                File file = user.getConfig().getFile();
+                try {
+                    createPlainTextFile("userdata/" + file.getName(), user.getName() + " data").appendFile(file);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        
+        private void config() {
+            try {
+                createPlainTextFile("config.yml", "Essentials Configuration file").appendFile(new File(ess.getDataFolder(), "config.yml"));
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}