Improving command requirement Req

src/com/massivecraft/mcore/cmd/MCommand.java

@@ -13,7 +13,7 @@ import com.massivecraft.mcore.MCore;
 import com.massivecraft.mcore.MPlugin;
 import com.massivecraft.mcore.cmd.arg.ArgReader;
 import com.massivecraft.mcore.cmd.arg.ArgResult;
-import com.massivecraft.mcore.cmd.req.IReq;
+import com.massivecraft.mcore.cmd.req.Req;
 import com.massivecraft.mcore.cmd.req.ReqHasPerm;
 import com.massivecraft.mcore.mixin.Mixin;
 import com.massivecraft.mcore.util.BukkitCommandUtil;
@@ -72,11 +72,11 @@ public abstract class MCommand
 	
 	// FIELD: requirements
 	// All these requirements must be met for the command to be executable;
-	protected List<IReq> requirements;
-	public List<IReq> getRequirements() { return this.requirements; }
-	public void getRequirements(List<IReq> requirements) { this.requirements = requirements; }
+	protected List<Req> requirements;
+	public List<Req> getRequirements() { return this.requirements; }
+	public void getRequirements(List<Req> requirements) { this.requirements = requirements; }
 	
-	public void addRequirements(IReq... requirements) { this.requirements.addAll(Arrays.asList(requirements)); }
+	public void addRequirements(Req... requirements) { this.requirements.addAll(Arrays.asList(requirements)); }
 	
 	// FIELD: desc
 	// This field may be left blank and will in such case be loaded from the permissions node instead.
@@ -110,7 +110,7 @@ public abstract class MCommand
 	{
 		if (this.descPermission != null) return this.descPermission;
 		// Otherwise we try to find one.
-		for (IReq req : this.requirements)
+		for (Req req : this.requirements)
 		{
 			if ( ! (req instanceof ReqHasPerm)) continue;
 			return ((ReqHasPerm)req).getPerm();
@@ -211,7 +211,7 @@ public abstract class MCommand
 		this.requiredArgs = new ArrayList<String>();
 		this.optionalArgs = new LinkedHashMap<String, String>();
 		
-		this.requirements = new ArrayList<IReq>();
+		this.requirements = new ArrayList<Req>();
 		
 		this.errorOnToManyArgs = true;
 		
@@ -300,9 +300,9 @@ public abstract class MCommand
 	
 	public boolean requirementsAreMet(CommandSender sender, boolean informSenderIfNot)
 	{
-		for (IReq req : this.getRequirements())
+		for (Req req : this.getRequirements())
 		{
-			if ( ! req.test(sender, this))
+			if ( ! req.apply(sender, this))
 			{
 				if (informSenderIfNot)
 				{

src/com/massivecraft/mcore/cmd/req/Req.java

@@ -2,13 +2,15 @@ package com.massivecraft.mcore.cmd.req;
 
 import org.bukkit.command.CommandSender;
 
+import com.massivecraft.mcore.Predictate;
 import com.massivecraft.mcore.cmd.MCommand;
 
-public interface IReq
+public interface Req extends Predictate<CommandSender>
 {
-	// This just tests wether the requirement is met or not.
-	public boolean test(CommandSender sender, MCommand command);
+	public boolean apply(CommandSender sender, MCommand command);
 	
 	// This just composes the error message and does NOT test the requirement at all.
+	
+	public String createErrorMessage(CommandSender sender);
 	public String createErrorMessage(CommandSender sender, MCommand command);
 }

src/com/massivecraft/mcore/cmd/req/ReqAbstract.java

@@ -0,0 +1,22 @@
+package com.massivecraft.mcore.cmd.req;
+
+import java.io.Serializable;
+
+import org.bukkit.command.CommandSender;
+
+public abstract class ReqAbstract implements Req, Serializable
+{
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	public boolean apply(CommandSender sender)
+	{
+		return this.apply(sender, null);
+	}
+
+	@Override
+	public String createErrorMessage(CommandSender sender)
+	{
+		return this.createErrorMessage(sender, null);
+	}
+}

src/com/massivecraft/mcore/cmd/req/ReqHasPerm.java

@@ -5,32 +5,37 @@ import org.bukkit.command.CommandSender;
 import com.massivecraft.mcore.cmd.MCommand;
 import com.massivecraft.mcore.util.PermUtil;
 
-public class ReqHasPerm implements IReq
+public class ReqHasPerm extends ReqAbstract
 {
-	private String perm;
-	public String getPerm() { return this.perm; }
-	public void setPerm(String perm) { this.perm = perm; }
+	private static final long serialVersionUID = 1L;
 	
-	public ReqHasPerm(String perm)
-	{
-		this.perm = perm;
-	}
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	
+	public static ReqHasPerm get(String perm) { return new ReqHasPerm(perm); }
+	public ReqHasPerm(String perm) { this.perm = perm; }
+	
+	// -------------------------------------------- //
+	// FIELDS
+	// -------------------------------------------- //
+	
+	private final String perm;
+	public String getPerm() { return this.perm; }
+	
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
 	
 	@Override
-	public boolean test(CommandSender sender, MCommand command)
+	public boolean apply(CommandSender sender, MCommand command)
 	{
 		return sender.hasPermission(this.perm);
 	}
-
+	
 	@Override
 	public String createErrorMessage(CommandSender sender, MCommand command)
 	{
 		return PermUtil.getForbiddenMessage(this.perm);
 	}
-	
-	public static ReqHasPerm get(String perm)
-	{
-		return new ReqHasPerm(perm);
-	}
-
 }

src/com/massivecraft/mcore/cmd/req/ReqIsPlayer.java

@@ -1,30 +1,36 @@
 package com.massivecraft.mcore.cmd.req;
 
 import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
 
 import com.massivecraft.mcore.Lang;
 import com.massivecraft.mcore.cmd.MCommand;
+import com.massivecraft.mcore.util.SenderUtil;
 
-public class ReqIsPlayer implements IReq
+public class ReqIsPlayer extends ReqAbstract
 {
+	private static final long serialVersionUID = 1L;
+	
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	
+	private static ReqIsPlayer i = new ReqIsPlayer();
+	public static ReqIsPlayer get() { return i; }
+	
+	// -------------------------------------------- //
+	// OVERRIDE
+	// -------------------------------------------- //
+	
 	@Override
-	public boolean test(CommandSender sender, MCommand command)
+	public boolean apply(CommandSender sender, MCommand command)
 	{
-		return sender instanceof Player;
+		return SenderUtil.isPlayer(sender);
 	}
-
+	
 	@Override
 	public String createErrorMessage(CommandSender sender, MCommand command)
 	{
 		return Lang.commandSenderMustBePlayer;
 	}
 	
-	// -------------------------------------------- //
-	// INSTANCE
-	// -------------------------------------------- //
-	
-	public static ReqIsPlayer i = new ReqIsPlayer();
-	public static ReqIsPlayer get() { return i; }
-	
 }