1 files changed, 137 insertions, 0 deletions
diff --git a/Essentials/src/com/earth2me/essentials/AlternativeCommandsHandler.java b/Essentials/src/com/earth2me/essentials/AlternativeCommandsHandler.java
new file mode 100644
index 000000000..e75644ad5
--- /dev/null
+++ b/Essentials/src/com/earth2me/essentials/AlternativeCommandsHandler.java
@@ -0,0 +1,137 @@
+package com.earth2me.essentials;
+
+import java.util.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.bukkit.command.Command;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.command.PluginCommandYamlParser;
+import org.bukkit.plugin.Plugin;
+
+
+public class AlternativeCommandsHandler
+{
+	private static final Logger LOGGER = Logger.getLogger("Minecraft");
+	private final transient Map<String, List<PluginCommand>> altcommands = new HashMap<String, List<PluginCommand>>();
+	private final transient Map<String, String> disabledList = new HashMap<String, String>();
+	private final transient IEssentials ess;
+
+	public AlternativeCommandsHandler(final IEssentials ess)
+	{
+		this.ess = ess;
+		for (Plugin plugin : ess.getServer().getPluginManager().getPlugins())
+		{
+			if (plugin.isEnabled())
+			{
+				addPlugin(plugin);
+			}
+		}
+	}
+
+	public final void addPlugin(final Plugin plugin)
+	{
+		if (plugin.getDescription().getMain().contains("com.earth2me.essentials"))
+		{
+			return;
+		}
+		final List<Command> commands = PluginCommandYamlParser.parse(plugin);
+		final String pluginName = plugin.getDescription().getName().toLowerCase(Locale.ENGLISH);
+
+		for (Command command : commands)
+		{
+			final PluginCommand pc = (PluginCommand)command;
+			final List<String> labels = new ArrayList<String>(pc.getAliases());
+			labels.add(pc.getName());
+
+			PluginCommand reg = ess.getServer().getPluginCommand(pluginName + ":" + pc.getName().toLowerCase(Locale.ENGLISH));
+			if (reg == null)
+			{
+				reg = ess.getServer().getPluginCommand(pc.getName().toLowerCase(Locale.ENGLISH));
+			}
+			if (reg == null || !reg.getPlugin().equals(plugin))
+			{
+				continue;
+			}
+			for (String label : labels)
+			{
+				List<PluginCommand> plugincommands = altcommands.get(label.toLowerCase(Locale.ENGLISH));
+				if (plugincommands == null)
+				{
+					plugincommands = new ArrayList<PluginCommand>();
+					altcommands.put(label.toLowerCase(Locale.ENGLISH), plugincommands);
+				}
+				boolean found = false;
+				for (PluginCommand pc2 : plugincommands)
+				{
+					if (pc2.getPlugin().equals(plugin))
+					{
+						found = true;
+					}
+				}
+				if (!found)
+				{
+					plugincommands.add(reg);
+				}
+			}
+		}
+	}
+
+	public void removePlugin(final Plugin plugin)
+	{
+		final Iterator<Map.Entry<String, List<PluginCommand>>> iterator = altcommands.entrySet().iterator();
+		while (iterator.hasNext())
+		{
+			final Map.Entry<String, List<PluginCommand>> entry = iterator.next();
+			final Iterator<PluginCommand> pcIterator = entry.getValue().iterator();
+			while (pcIterator.hasNext())
+			{
+				final PluginCommand pc = pcIterator.next();
+				if (pc.getPlugin() == null || pc.getPlugin().equals(plugin))
+				{
+					pcIterator.remove();
+				}
+			}
+			if (entry.getValue().isEmpty())
+			{
+				iterator.remove();
+			}
+		}
+	}
+
+	public PluginCommand getAlternative(final String label)
+	{
+		final List<PluginCommand> commands = altcommands.get(label);
+		if (commands == null || commands.isEmpty())
+		{
+			return null;
+		}
+		if (commands.size() == 1)
+		{
+			return commands.get(0);
+		}
+		// return the first command that is not an alias
+		for (PluginCommand command : commands)
+		{
+			if (command.getName().equalsIgnoreCase(label))
+			{
+				return command;
+			}
+		}
+		// return the first alias
+		return commands.get(0);
+	}
+
+	public void executed(final String label, final String otherLabel)
+	{
+		if (ess.getSettings().isDebug())
+		{
+			LOGGER.log(Level.INFO, "Essentials: Alternative command " + label + " found, using " + otherLabel);
+		}
+		disabledList.put(label, otherLabel);
+	}
+
+	public Map<String, String> disabledCommands()
+	{
+		return disabledList;
+	}
+}