Implement DeniedMessageEvent

Partially addresses #57

pom.xml

@@ -58,7 +58,7 @@
         <dependency>
                 <groupId>org.bukkit</groupId>
                 <artifactId>bukkit</artifactId>
-                <version>1.11-R0.1-SNAPSHOT</version>
+                <version>1.11.2-R0.1-SNAPSHOT</version>
                 <scope>provided</scope>
         </dependency>
          <!--Worldguard dependency-->

src/me/ryanhamshire/GriefPrevention/DataStore.java

@@ -26,6 +26,7 @@ import java.util.regex.Pattern;
 
 import me.ryanhamshire.GriefPrevention.events.ClaimDeletedEvent;
 
+import me.ryanhamshire.GriefPrevention.events.DeniedMessageEvent;
 import org.bukkit.*;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
@@ -41,6 +42,8 @@ import com.google.common.io.Files;
 //singleton class which manages all GriefPrevention data (except for config options)
 public abstract class DataStore 
 {
+	private GriefPrevention instance;
+
 	//in-memory cache for player data
 	protected ConcurrentHashMap<UUID, PlayerData> playerNameToPlayerDataMap = new ConcurrentHashMap<UUID, PlayerData>();
 	
@@ -1682,8 +1685,11 @@ public abstract class DataStore
 			String param = args[i];
 			message = message.replace("{" + i + "}", param);
 		}
+
+		DeniedMessageEvent event = new DeniedMessageEvent(messageID, message);
+		Bukkit.getPluginManager().callEvent(event);
 		
-		return message;		
+		return event.getMessage();
 	}
 	
 	//used in updating the data schema from 0 to 1.

src/me/ryanhamshire/GriefPrevention/events/DeniedMessageEvent.java

@@ -0,0 +1,55 @@
+package me.ryanhamshire.GriefPrevention.events;
+
+import me.ryanhamshire.GriefPrevention.Messages;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Called when GP is retrieving the denial message to send to the player when canceling an action
+ *
+ * @author RoboMWM
+ * Created 1/4/2017.
+ */
+public class DeniedMessageEvent extends Event
+{
+    // Custom Event Requirements
+    private static final HandlerList handlers = new HandlerList();
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    private String message;
+    private Messages messageID;
+
+    public DeniedMessageEvent(Messages messageID, String message)
+    {
+        this.message = message;
+        this.messageID = messageID;
+    }
+
+    public Messages getMessageID()
+    {
+        return this.messageID;
+    }
+
+    public String getMessage()
+    {
+        return this.message;
+    }
+
+    /**
+     * Sets the message to print to the player.
+     * @param message Cannot be null. Set to an empty string if you wish for no message to be printed.
+     */
+    public void setMessage(@Nonnull String message)
+    {
+        this.message = message;
+    }
+
+}