Add file tailer. Tail your server.log and send output to user or channel.

pom.xml

@@ -103,7 +103,13 @@
         <dependency>
             <groupId>commons-codec</groupId>
             <artifactId>commons-codec</artifactId>
-            <version>1.10</version>
+            <version>1.9</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.4</version>
         </dependency>
 
         <!-- Following dependency is provided by CraftBukkit -->

src/main/java/com/cnaude/purpleirc/LogTailer.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2014 cnaude
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.cnaude.purpleirc;
+
+import java.io.File;
+import org.apache.commons.io.input.Tailer;
+import org.apache.commons.io.input.TailerListener;
+import org.apache.commons.io.input.TailerListenerAdapter;
+
+/**
+ *
+ * @author Chris Naude Poll the command queue and dispatch to Bukkit
+ */
+public class LogTailer {
+
+    private final PurpleIRC plugin;
+    private final PurpleBot ircBot;
+    private final String target;
+    private final boolean ctcp;
+    private static final int SLEEP = 500;
+    private final File file;
+    private Tailer tailer;
+    private Thread thread;
+    private TailerListener listener;
+
+    /**
+     *
+     * @param plugin
+     * @param ircBot
+     * @param target
+     * @param ctcp
+     * @param fileName
+     */
+    public LogTailer(final PurpleBot ircBot, final PurpleIRC plugin, final String target, final boolean ctcp, final String fileName) {
+        this.plugin = plugin;
+        this.ircBot = ircBot;
+        this.target = target;
+        this.ctcp = ctcp;
+        this.file = new File(fileName);
+        if (file.exists()) {
+            startWatcher();
+        } else {
+            plugin.logError("No such file: " + fileName);
+        }
+    }
+
+    private void startWatcher() {
+        plugin.getServer().getScheduler().runTaskLaterAsynchronously(plugin, new Runnable() {
+            @Override
+            public void run() {
+                plugin.logInfo("Tailing file: " + file.getName());
+                listener = new MyTailerListener();
+                tailer = new Tailer(file, listener, SLEEP);
+                thread = new Thread(tailer);
+                thread.setDaemon(true); // optional
+                thread.start();
+            }
+        }, 0);
+    }
+
+    public class MyTailerListener extends TailerListenerAdapter {
+
+        @Override
+        public void handle(String line) {
+            if (ctcp) {
+                blockingCTCPMessage(target, line);
+            } else {
+                blockingIRCMessage(target, line);
+            }
+        }
+
+    }
+
+    private void blockingIRCMessage(final String target, final String message) {
+        if (!ircBot.isConnected()) {
+            return;
+        }
+        plugin.logDebug("[blockingIRCMessage] About to send IRC message to " + target + ": " + message);
+        ircBot.bot.sendIRC().message(target, message);
+        plugin.logDebug("[blockingIRCMessage] Message sent to " + target + ": " + message);
+    }
+
+    private void blockingCTCPMessage(final String target, final String message) {
+        if (!ircBot.isConnected()) {
+            return;
+        }
+        plugin.logDebug("[blockingCTCPMessage] About to send IRC message to " + target + ": " + message);
+        ircBot.bot.sendIRC().ctcpResponse(target, message);
+        plugin.logDebug("[blockingCTCPMessage] Message sent to " + target + ": " + message);
+    }
+
+    protected void stopTailer() {
+        if (tailer != null) {
+            plugin.logInfo("Stoping tailer.");
+            tailer.stop();
+        }
+    }
+
+}

src/main/java/com/cnaude/purpleirc/PurpleBot.java

@@ -59,6 +59,7 @@ import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 import me.botsko.prism.actionlibs.QueryParameters;
 import me.botsko.prism.events.BlockStateChange;
+import org.apache.commons.io.input.Tailer;
 import org.bukkit.Achievement;
 import org.bukkit.ChatColor;
 import org.bukkit.GameMode;
@@ -188,6 +189,11 @@ public final class PurpleBot {
     public CaseInsensitiveMap<String> linkRequests;
     public CaseInsensitiveMap<Collection<String>> remotePlayers;
     public CaseInsensitiveMap<CaseInsensitiveMap<String>> remoteServerInfo;
+    private LogTailer tailer;
+    private boolean tailerEnabled;
+    private String tailerFile;
+    private String tailerRecipient;
+    private boolean tailerCtcp;
 
     /**
      *
@@ -275,6 +281,9 @@ public final class PurpleBot {
     }
 
     public void buildBot(boolean reload) {
+        if (tailer != null) {
+            tailer.stopTailer();
+        }
         Configuration.Builder configBuilder = new Configuration.Builder()
                 .setName(botNick)
                 .setLogin(botLogin)
@@ -354,6 +363,15 @@ public final class PurpleBot {
             plugin.logInfo("Auto-connect is disabled. To connect: /irc connect " + bot.getNick());
         }
         plugin.logDebug("Max line length: " + configBuilder.getMaxLineLength());
+        if (tailerEnabled && !tailerFile.isEmpty() && !tailerRecipient.isEmpty()) {
+            tailer = new LogTailer(this, plugin, tailerRecipient, tailerCtcp, tailerFile);
+        }
+    }
+
+    protected void stopTailer() {
+        if (tailer != null) {
+            tailer.stopTailer();
+        }
     }
 
     private void addListeners() {
@@ -777,6 +795,12 @@ public final class PurpleBot {
                 plugin.logInfo(" No command recipients defined.");
             }
 
+            // load tailer settings
+            tailerEnabled = config.getBoolean("file-tailer.enabled", false);
+            tailerFile = config.getString("file-tailer.file", "server.log");
+            tailerRecipient = config.getString("file-tailer.recipient", "");
+            tailerCtcp = config.getBoolean("file-tailer.ctcp", false);
+
             // build command notify ignore list
             for (String command : config.getStringList("command-notify.ignore")) {
                 if (!channelCmdNotifyIgnore.contains(command)) {
@@ -875,7 +899,7 @@ public final class PurpleBot {
                     if (opsList.isEmpty()) {
                         plugin.logInfo("No channel ops defined.");
                     }
-                    
+
                     // build channel ban list
                     Collection<String> cBans = new ArrayList<>();
                     for (String channelBan : config.getStringList("channels." + enChannelName + ".banlist")) {
@@ -1865,7 +1889,7 @@ public final class PurpleBot {
         }
         saveConfig("channels." + encodeChannel(getConfigChannelName(channelName)) + ".ops", opsList.get(channelName));
     }
-    
+
     /**
      *
      * @param channelName
@@ -1919,7 +1943,7 @@ public final class PurpleBot {
         }
         saveConfig("channels." + encodeChannel(getConfigChannelName(channelName)) + ".ops", opsList.get(channelName));
     }
-    
+
     /**
      *
      * @param channelName
@@ -2071,7 +2095,7 @@ public final class PurpleBot {
             }
         }
     }
-    
+
     /**
      *
      * @param channelName
@@ -2463,7 +2487,7 @@ public final class PurpleBot {
             }
         }
     }
-    
+
     /**
      *
      * @param channel

src/main/java/com/cnaude/purpleirc/PurpleIRC.java

@@ -346,6 +346,7 @@ public class PurpleIRC extends JavaPlugin {
             logInfo("Disconnecting IRC bots.");
             for (PurpleBot ircBot : ircBots.values()) {
                 commandQueue.cancel();
+                ircBot.stopTailer();
                 ircBot.saveConfig(getServer().getConsoleSender());
                 ircBot.quit();
             }

src/main/resources/SampleBot.yml

@@ -66,6 +66,12 @@ command-notify:
     - example
   ignore:
     - /example
+# File tailer
+file-tailer:
+    enabled: false
+    file: 'server.log'
+    recipient: '#minecraft-test'
+    ctcp: false
 # Messaging flood control (game and IRC)
 flood-control:
     # Enable or disable flood control