Optimizations include changing the return of comparePermissionString.

4 files changed, 294 insertions, 273 deletions

diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/data/User.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/data/User.java
index 6c4cdbcf2..eea488ab2 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/data/User.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/data/User.java
@@ -10,209 +10,232 @@ import java.util.ArrayList;
 import org.anjocaido.groupmanager.GroupManager;
 import org.anjocaido.groupmanager.dataholder.WorldDataHolder;
 import java.util.Map;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
 
 /**
- *
+ * 
  * @author gabrielcouto
  */
 public class User extends DataUnit implements Cloneable {
 
-    /**
-     *
-     */
-    private String group = null;
-    private ArrayList<String> subGroups = new ArrayList<String>();
-    /**
-     *This one holds the fields in INFO node.
-     * like prefix = 'c'
-     * or build = false
-     */
-    private UserVariables variables = new UserVariables(this);
-
-    /**
+	/**
      *
-     * @param name
      */
-    public User(WorldDataHolder source, String name) {
-        super(source, name);
-        this.group = source.getDefaultGroup().getName();
-    }
+	private String group = null;
+	private ArrayList<String> subGroups = new ArrayList<String>();
+	/**
+	 * This one holds the fields in INFO node. like prefix = 'c' or build =
+	 * false
+	 */
+	private UserVariables variables = new UserVariables(this);
+	private transient Player bukkitPlayer = null;
+
+	/**
+	 * 
+	 * @param name
+	 */
+	public User(WorldDataHolder source, String name) {
+		super(source, name);
+		this.group = source.getDefaultGroup().getName();
+	}
+
+	/**
+	 * 
+	 * @return User clone
+	 */
+	@Override
+	public User clone() {
+		User clone = new User(getDataSource(), this.getName());
+		clone.group = this.group;
+		for (String perm : this.getPermissionList()) {
+			clone.addPermission(perm);
+		}
+		// clone.variables = this.variables.clone();
+		// clone.flagAsChanged();
+		return clone;
+	}
+
+	/**
+	 * Use this to deliver a user from one WorldDataHolder to another
+	 * 
+	 * @param dataSource
+	 * @return null if given dataSource already contains the same user
+	 */
+	public User clone(WorldDataHolder dataSource) {
+		if (dataSource.isUserDeclared(this.getName())) {
+			return null;
+		}
+		User clone = dataSource.createUser(this.getName());
+		if (dataSource.getGroup(group) == null) {
+			clone.setGroup(dataSource.getDefaultGroup());
+		} else {
+			clone.setGroup(dataSource.getGroup(this.getGroupName()));
+		}
+		for (String perm : this.getPermissionList()) {
+			clone.addPermission(perm);
+		}
+		// clone.variables = this.variables.clone();
+		clone.flagAsChanged();
+		return clone;
+	}
+
+	public Group getGroup() {
+		Group result = getDataSource().getGroup(group);
+		if (result == null) {
+			this.setGroup(getDataSource().getDefaultGroup());
+			result = getDataSource().getDefaultGroup();
+		}
+		return result;
+	}
+
+	/**
+	 * @return the group
+	 */
+	public String getGroupName() {
+		Group result = getDataSource().getGroup(group);
+		if (result == null) {
+			group = getDataSource().getDefaultGroup().getName();
+		}
+		return group;
+	}
+
+	/**
+	 * @param group
+	 *            the group to set
+	 */
+	@Deprecated
+	public void setGroup(String group) {
+		this.group = group;
+		flagAsChanged();
+		if (GroupManager.isLoaded())
+			if (GroupManager.BukkitPermissions.player_join = false)
+				GroupManager.BukkitPermissions.updateAllPlayers();
+	}
+
+	/**
+	 * @param group
+	 *            the group to set
+	 */
+	public void setGroup(Group group) {
+		if (!this.getDataSource().groupExists(group.getName())) {
+			getDataSource().addGroup(group);
+		}
+		group = getDataSource().getGroup(group.getName());
+		String oldGroup = this.group;
+		this.group = group.getName();
+		flagAsChanged();
+		if (GroupManager.isLoaded()) {
+			if (GroupManager.BukkitPermissions.player_join = false)
+				GroupManager.BukkitPermissions.updateAllPlayers();
+
+			// Do we notify of the group change?
+			String defaultGroupName = getDataSource().getDefaultGroup().getName();
+			// if we were not in the default group
+			// or we were in the default group and the move is to a different
+			// group.
+			boolean notify = (!oldGroup.equalsIgnoreCase(defaultGroupName)) || ((oldGroup.equalsIgnoreCase(defaultGroupName)) && (!this.group.equalsIgnoreCase(defaultGroupName)));
+
+			if (notify)
+				GroupManager.notify(this.getName(), String.format(" moved to the group %s.", group.getName()));
+		}
+	}
+
+	public void addSubGroup(Group subGroup) {
+		if (this.group.equalsIgnoreCase(subGroup.getName())) {
+			return;
+		}
+		if (!this.getDataSource().groupExists(subGroup.getName())) {
+			getDataSource().addGroup(subGroup);
+		}
+		subGroup = getDataSource().getGroup(subGroup.getName());
+		removeSubGroup(subGroup);
+		subGroups.add(subGroup.getName());
+		flagAsChanged();
+		if (GroupManager.isLoaded())
+			if (GroupManager.BukkitPermissions.player_join = false)
+				GroupManager.BukkitPermissions.updateAllPlayers();
+	}
+
+	public int subGroupsSize() {
+		return subGroups.size();
+	}
+
+	public boolean isSubGroupsEmpty() {
+		return subGroups.isEmpty();
+	}
+
+	public boolean containsSubGroup(Group subGroup) {
+		return subGroups.contains(subGroup.getName());
+	}
+
+	public boolean removeSubGroup(Group subGroup) {
+		try {
+			if (subGroups.remove(subGroup.getName())) {
+				flagAsChanged();
+				if (GroupManager.isLoaded())
+					if (GroupManager.BukkitPermissions.player_join = false)
+						GroupManager.BukkitPermissions.updateAllPlayers();
+				return true;
+			}
+		} catch (Exception e) {
+		}
+		return false;
+	}
+
+	public ArrayList<Group> subGroupListCopy() {
+		ArrayList<Group> val = new ArrayList<Group>();
+		for (String gstr : subGroups) {
+			Group g = getDataSource().getGroup(gstr);
+			if (g == null) {
+				removeSubGroup(g);
+				continue;
+			}
+			val.add(g);
+		}
+		return val;
+	}
+
+	public ArrayList<String> subGroupListStringCopy() {
+		return new ArrayList<String>(subGroups);
+	}
+
+	/**
+	 * @return the variables
+	 */
+	public UserVariables getVariables() {
+		return variables;
+	}
+
+	/**
+	 * 
+	 * @param varList
+	 */
+	public void setVariables(Map<String, Object> varList) {
+		UserVariables temp = new UserVariables(this, varList);
+		variables.clearVars();
+		for (String key : temp.getVarKeyList()) {
+			variables.addVar(key, temp.getVarObject(key));
+		}
+		flagAsChanged();
+		if (GroupManager.isLoaded())
+			if (GroupManager.BukkitPermissions.player_join = false)
+				GroupManager.BukkitPermissions.updateAllPlayers();
+	}
+
+	public User updatePlayer(Player player) {
+		if (player != null) {
+			bukkitPlayer = player;
+		}
+		return this;
+	}
+
+	public Player getBukkitPlayer() {
+		if (bukkitPlayer == null) {
+			bukkitPlayer = Bukkit.getPlayer(this.getName());
+		}
+		return bukkitPlayer;
+	}
 
-    /**
-     *
-     * @return User clone
-     */
-    @Override
-    public User clone() {
-        User clone = new User(getDataSource(), this.getName());
-        clone.group = this.group;
-        for (String perm : this.getPermissionList()) {
-            clone.addPermission(perm);
-        }
-        //clone.variables = this.variables.clone();
-        //clone.flagAsChanged();
-        return clone;
-    }
-
-    /**
-     * Use this to deliver a user from one WorldDataHolder to another
-     * @param dataSource
-     * @return null if given dataSource already contains the same user
-     */
-    public User clone(WorldDataHolder dataSource) {
-        if (dataSource.isUserDeclared(this.getName())) {
-            return null;
-        }
-        User clone = dataSource.createUser(this.getName());
-        if (dataSource.getGroup(group) == null) {
-            clone.setGroup(dataSource.getDefaultGroup());
-        } else {
-            clone.setGroup(dataSource.getGroup(this.getGroupName()));
-        }
-        for (String perm : this.getPermissionList()) {
-            clone.addPermission(perm);
-        }
-        //clone.variables = this.variables.clone();
-        clone.flagAsChanged();
-        return clone;
-    }
-
-    public Group getGroup() {
-        Group result = getDataSource().getGroup(group);
-        if (result == null) {
-            this.setGroup(getDataSource().getDefaultGroup());
-            result = getDataSource().getDefaultGroup();
-        }
-        return result;
-    }
-
-    /**
-     * @return the group
-     */
-    public String getGroupName() {
-        Group result = getDataSource().getGroup(group);
-        if (result == null) {
-            group = getDataSource().getDefaultGroup().getName();
-        }
-        return group;
-    }
-
-    /**
-     * @param group the group to set
-     */
-    @Deprecated
-    public void setGroup(String group) {
-        this.group = group;
-        flagAsChanged();
-        if (GroupManager.isLoaded())
-        	if(GroupManager.BukkitPermissions.player_join = false)
-        		GroupManager.BukkitPermissions.updateAllPlayers();
-    }
-
-    /**
-     * @param group the group to set
-     */
-    public void setGroup(Group group) {
-        if (!this.getDataSource().groupExists(group.getName())) {
-            getDataSource().addGroup(group);
-        }
-        group = getDataSource().getGroup(group.getName());
-        String oldGroup = this.group;
-        this.group = group.getName();
-        flagAsChanged();
-        if (GroupManager.isLoaded()) {
-        	if (GroupManager.BukkitPermissions.player_join = false)
-        		GroupManager.BukkitPermissions.updateAllPlayers();
-        	
-        	// Do we notify of the group change?
-            String defaultGroupName = getDataSource().getDefaultGroup().getName();
-            // if we were not in the default group
-            // or we were in the default group and the move is to a different group.
-            boolean notify = (!oldGroup.equalsIgnoreCase(defaultGroupName)) || ((oldGroup.equalsIgnoreCase(defaultGroupName)) && (!this.group.equalsIgnoreCase(defaultGroupName))) ;
-        
-        	if (notify) GroupManager.notify(this.getName(), String.format(" moved to the group %s.", group.getName()));
-        }
-    }
-
-    public void addSubGroup(Group subGroup) {
-        if (this.group.equalsIgnoreCase(subGroup.getName())) {
-            return;
-        }
-        if (!this.getDataSource().groupExists(subGroup.getName())) {
-            getDataSource().addGroup(subGroup);
-        }
-        subGroup = getDataSource().getGroup(subGroup.getName());
-        removeSubGroup(subGroup);
-        subGroups.add(subGroup.getName());
-        flagAsChanged();
-        if (GroupManager.isLoaded())
-        	if (GroupManager.BukkitPermissions.player_join = false)
-        	GroupManager.BukkitPermissions.updateAllPlayers();
-    }
-
-    public int subGroupsSize() {
-        return subGroups.size();
-    }
-
-    public boolean isSubGroupsEmpty() {
-        return subGroups.isEmpty();
-    }
-
-    public boolean containsSubGroup(Group subGroup) {
-        return subGroups.contains(subGroup.getName());
-    }
-
-    public boolean removeSubGroup(Group subGroup) {
-        try {
-            if (subGroups.remove(subGroup.getName())) {
-                flagAsChanged();
-                if (GroupManager.isLoaded())
-                	if (GroupManager.BukkitPermissions.player_join = false)
-                		GroupManager.BukkitPermissions.updateAllPlayers();
-                return true;
-            }
-        } catch (Exception e) {
-        }
-        return false;
-    }
-
-    public ArrayList<Group> subGroupListCopy() {
-        ArrayList<Group> val = new ArrayList<Group>();
-        for (String gstr : subGroups) {
-            Group g = getDataSource().getGroup(gstr);
-            if (g == null) {
-                removeSubGroup(g);
-                continue;
-            }
-            val.add(g);
-        }
-        return val;
-    }
-
-    public ArrayList<String> subGroupListStringCopy() {
-        return new ArrayList<String>(subGroups);
-    }
-
-    /**
-     * @return the variables
-     */
-    public UserVariables getVariables() {
-        return variables;
-    }
-
-    /**
-     *
-     * @param varList
-     */
-    public void setVariables(Map<String, Object> varList) {
-        UserVariables temp = new UserVariables(this, varList);
-        variables.clearVars();
-        for (String key : temp.getVarKeyList()) {
-            variables.addVar(key, temp.getVarObject(key));
-        }
-        flagAsChanged();
-        if (GroupManager.isLoaded())
-        	if (GroupManager.BukkitPermissions.player_join = false)
-        		GroupManager.BukkitPermissions.updateAllPlayers();
-    }
 }
diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/OverloadedWorldHolder.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/OverloadedWorldHolder.java
index e7fa81627..8e2df5d10 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/OverloadedWorldHolder.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/OverloadedWorldHolder.java
@@ -44,12 +44,13 @@ public class OverloadedWorldHolder extends WorldDataHolder {
     @Override
     public User getUser(String userName) {
         //OVERLOADED CODE
-        if (overloadedUsers.containsKey(userName.toLowerCase())) {
-            return overloadedUsers.get(userName.toLowerCase());
+    	String userNameLowered = userName.toLowerCase();
+    	if (overloadedUsers.containsKey(userNameLowered)) {
+    		return overloadedUsers.get(userNameLowered);
         }
         //END CODE
-        if (users.containsKey(userName.toLowerCase())) {
-            return users.get(userName.toLowerCase());
+        if (users.containsKey(userNameLowered)) {
+            return users.get(userNameLowered);
         }
         User newUser = createUser(userName);
         haveUsersChanged = true;
diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/worlds/WorldsHolder.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/worlds/WorldsHolder.java
index 6544bb1cc..25eaf8526 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/worlds/WorldsHolder.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/dataholder/worlds/WorldsHolder.java
@@ -268,9 +268,10 @@ public class WorldsHolder {
      * @return OverloadedWorldHolder
      */
     public OverloadedWorldHolder getWorldData(String worldName) {
-        OverloadedWorldHolder data = worldsData.get(worldName.toLowerCase());
-        if (mirrors.containsKey(worldName.toLowerCase())) {
-            String realOne = mirrors.get(worldName.toLowerCase());
+    	String worldNameLowered = worldName.toLowerCase();
+    	OverloadedWorldHolder data = worldsData.get(worldNameLowered);
+    	if (mirrors.containsKey(worldNameLowered)) {
+    		String realOne = mirrors.get(worldNameLowered);
             data = worldsData.get(realOne.toLowerCase());
         }
         if (data == null) {
diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/permissions/AnjoPermissionsHandler.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/permissions/AnjoPermissionsHandler.java
index 91c73b5c2..6e18bf3f8 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/permissions/AnjoPermissionsHandler.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/permissions/AnjoPermissionsHandler.java
@@ -17,6 +17,7 @@ import org.anjocaido.groupmanager.utils.PermissionCheckResult;
 import org.anjocaido.groupmanager.utils.PermissionCheckResult.Type;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
+import org.bukkit.permissions.Permission;
 
 /**
  * Everything here maintains the model created by Nijikokun
@@ -62,7 +63,7 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	 */
 	@Override
 	public boolean permission(Player player, String permission) {
-		return checkUserPermission(ph.getUser(player.getName()), permission);
+		return checkUserPermission(ph.getUser(player.getName()).updatePlayer(player), permission);
 	}
 
 	/**
@@ -98,13 +99,13 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	public List<String> getAllPlayersPermissions(String userName) {
 
 		List<String> playerPermArray = new ArrayList<String>();
-		
+
 		for (String perm : ph.getUser(userName).getPermissionList()) {
 			if ((!playerPermArray.contains(perm)) && (!playerPermArray.contains("-" + perm))) {
 				playerPermArray.add(perm);
-				
+
 				Map<String, Boolean> children = GroupManager.BukkitPermissions.getAllChildren(perm, playerPermArray);
-				
+
 				if (children != null) {
 					for (String child : children.keySet()) {
 						if (children.get(child))
@@ -135,7 +136,7 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 				for (String perm : ph.getGroup(group).getPermissionList()) {
 					if ((!playerPermArray.contains(perm)) && (!playerPermArray.contains("-" + perm))) {
 						playerPermArray.add(perm);
-						
+
 						Map<String, Boolean> children = GroupManager.BukkitPermissions.getAllChildren(perm, playerPermArray);
 						if (children != null) {
 							for (String child : children.keySet()) {
@@ -149,7 +150,8 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 				}
 			}
 		}
-		//Collections.sort(playerPermArray, StringPermissionComparator.getInstance());
+		// Collections.sort(playerPermArray,
+		// StringPermissionComparator.getInstance());
 
 		return playerPermArray;
 	}
@@ -243,7 +245,8 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	/**
 	 * Check if user can build. Checks inheritance and subgroups.
 	 * 
-	 * @param userName Player's name    
+	 * @param userName
+	 *            Player's name
 	 * @return true if the user can build
 	 */
 	public boolean canUserBuild(String userName) {
@@ -283,8 +286,8 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	}
 
 	/**
-	 * Checks the specified group for the Info Build node.
-	 * Does NOT check inheritance
+	 * Checks the specified group for the Info Build node. Does NOT check
+	 * inheritance
 	 * 
 	 * @param groupName
 	 * @return true if can build
@@ -615,15 +618,8 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 		result.askedPermission = permission;
 		result.owner = user;
 		for (String access : user.getPermissionList()) {
-			if (comparePermissionString(access, permission)) {
-				result.accessLevel = access;
-				if (access.charAt(0) == '-') {
-					result.resultType = PermissionCheckResult.Type.NEGATION;
-				} else if (access.charAt(0) == '+') {
-					result.resultType = PermissionCheckResult.Type.EXCEPTION;
-				} else {
-					result.resultType = PermissionCheckResult.Type.FOUND;
-				}
+			result.resultType = comparePermissionString(access, permission);
+			if (result.resultType != PermissionCheckResult.Type.NOTFOUND) {
 				return result;
 			}
 		}
@@ -645,15 +641,8 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 		result.owner = group;
 		result.askedPermission = permission;
 		for (String access : group.getPermissionList()) {
-			if (comparePermissionString(access, permission)) {
-				result.accessLevel = access;
-				if (access.charAt(0) == '-') {
-					result.resultType = PermissionCheckResult.Type.NEGATION;
-				} else if (access.charAt(0) == '+') {
-					result.resultType = PermissionCheckResult.Type.EXCEPTION;
-				} else {
-					result.resultType = PermissionCheckResult.Type.FOUND;
-				}
+			result.resultType = comparePermissionString(access, permission);
+			if (result.resultType != PermissionCheckResult.Type.NOTFOUND) {
 				return result;
 			}
 		}
@@ -670,7 +659,7 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	 */
 	public boolean checkUserPermission(User user, String permission) {
 		PermissionCheckResult result = checkFullGMPermission(user, permission, true);
-		if (result.resultType.equals(PermissionCheckResult.Type.EXCEPTION) || result.resultType.equals(PermissionCheckResult.Type.FOUND)) {
+		if (result.resultType == PermissionCheckResult.Type.EXCEPTION || result.resultType == PermissionCheckResult.Type.FOUND) {
 			return true;
 		}
 
@@ -686,13 +675,13 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	 * @return PermissionCheckResult
 	 */
 	public PermissionCheckResult checkFullUserPermission(User user, String targetPermission) {
-		
+
 		return checkFullGMPermission(user, targetPermission, true);
 	}
-	
+
 	/**
-	 * Check user and groups with inheritance and Bukkit if bukkit = true
-	 * return a PermissionCheckResult.
+	 * Check user and groups with inheritance and Bukkit if bukkit = true return
+	 * a PermissionCheckResult.
 	 * 
 	 * @param user
 	 * @param targetPermission
@@ -708,31 +697,33 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 			return result;
 		}
 
-		if (checkBukkit == true) {
-			// Check Bukkit perms to support plugins which add perms via code (Heroes).
-			final Player player = Bukkit.getPlayer(user.getName());
-			if ((player != null) && (player.hasPermission(targetPermission))) {
-				result.resultType = PermissionCheckResult.Type.FOUND;
+		if (checkBukkit) {
+			// Check Bukkit perms to support plugins which add perms via code
+			// (Heroes).
+			final Player player = user.getBukkitPlayer();
+			final Permission bukkitPerm = Bukkit.getPluginManager().getPermission(targetPermission);
+			if (player != null && bukkitPerm != null) {
+				result.resultType = player.hasPermission(bukkitPerm) ? PermissionCheckResult.Type.FOUND : PermissionCheckResult.Type.NEGATION;
 				result.owner = user;
 				return result;
 			}
 		}
-		
+
 		PermissionCheckResult resultUser = checkUserOnlyPermission(user, targetPermission);
-		if (!resultUser.resultType.equals(PermissionCheckResult.Type.NOTFOUND)) {
+		if (resultUser.resultType != PermissionCheckResult.Type.NOTFOUND) {
 			return resultUser;
 		}
 
 		// IT ONLY CHECKS GROUPS PERMISSIONS IF RESULT FOR USER IS NOT FOUND
 		PermissionCheckResult resultGroup = checkGroupPermissionWithInheritance(user.getGroup(), targetPermission);
-		if (!resultGroup.resultType.equals(PermissionCheckResult.Type.NOTFOUND)) {
+		if (resultGroup.resultType != PermissionCheckResult.Type.NOTFOUND) {
 			return resultGroup;
 		}
 
 		// SUBGROUPS CHECK
 		for (Group subGroup : user.subGroupListCopy()) {
 			PermissionCheckResult resultSubGroup = checkGroupPermissionWithInheritance(subGroup, targetPermission);
-			if (!resultSubGroup.resultType.equals(PermissionCheckResult.Type.NOTFOUND)) {
+			if (resultSubGroup.resultType != PermissionCheckResult.Type.NOTFOUND) {
 				return resultSubGroup;
 			}
 		}
@@ -994,37 +985,42 @@ public class AnjoPermissionsHandler extends PermissionsReaderInterface {
 	 * 
 	 * @param userAccessLevel
 	 * @param fullPermissionName
-	 * @return true if found a matching token. false if not.
+	 * @return PermissionCheckResult.Type
 	 */
-	public boolean comparePermissionString(String userAccessLevel, String fullPermissionName) {
-        int userAccessLevelLength;
-        if (userAccessLevel == null || fullPermissionName == null
-                || fullPermissionName.length() == 0 || (userAccessLevelLength = userAccessLevel.length()) == 0) {
-            return false;
-        }
-
-        int userAccessLevelOffset = 0;
-        if (userAccessLevel.charAt(0) == '+' || userAccessLevel.charAt(0) == '-') {
-            userAccessLevelOffset = 1;
-        }
-        if ("*".regionMatches(0, userAccessLevel, userAccessLevelOffset, userAccessLevelLength - userAccessLevelOffset)) {
-            return true;
-        }
-        int fullPermissionNameOffset;
-        if (fullPermissionName.charAt(0) == '+' || fullPermissionName.charAt(0) == '-') {
-            fullPermissionNameOffset = 1;
-        } else {
-            fullPermissionNameOffset = 0;
-        }
-
-        if (userAccessLevel.charAt(userAccessLevel.length() - 1) == '*') {
-        	return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset, userAccessLevelLength - userAccessLevelOffset - 1);
-        } else {
-            return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset, 
-                     Math.max(userAccessLevelLength - userAccessLevelOffset, fullPermissionName.length() - fullPermissionNameOffset));
-         }
-    }
+	public PermissionCheckResult.Type comparePermissionString(String userAccessLevel, String fullPermissionName) {
+		int userAccessLevelLength;
+		if (userAccessLevel == null || fullPermissionName == null || fullPermissionName.length() == 0 || (userAccessLevelLength = userAccessLevel.length()) == 0) {
+			return PermissionCheckResult.Type.NOTFOUND;
+		}
+
+		PermissionCheckResult.Type result = PermissionCheckResult.Type.FOUND;
+		int userAccessLevelOffset = 0;
+		if (userAccessLevel.charAt(0) == '+') {
+			userAccessLevelOffset = 1;
+			result = PermissionCheckResult.Type.EXCEPTION;
+		} else if (userAccessLevel.charAt(0) == '-') {
+			userAccessLevelOffset = 1;
+			result = PermissionCheckResult.Type.NEGATION;
+		}
+		if ("*".regionMatches(0, userAccessLevel, userAccessLevelOffset, userAccessLevelLength - userAccessLevelOffset)) {
+			return result;
+		}
+		int fullPermissionNameOffset;
+		if (fullPermissionName.charAt(0) == '+' || fullPermissionName.charAt(0) == '-') {
+			fullPermissionNameOffset = 1;
+		} else {
+			fullPermissionNameOffset = 0;
+		}
 
+		if (userAccessLevel.charAt(userAccessLevel.length() - 1) == '*') {
+			return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset, userAccessLevelLength - userAccessLevelOffset - 1) ?
+					result : PermissionCheckResult.Type.NOTFOUND;
+		} else {
+			return userAccessLevel.regionMatches(true, userAccessLevelOffset, fullPermissionName, fullPermissionNameOffset,
+					Math.max(userAccessLevelLength - userAccessLevelOffset, fullPermissionName.length() - fullPermissionNameOffset)) ?
+							result : PermissionCheckResult.Type.NOTFOUND;
+		}
+	}
 
 	/**
 	 * Returns a list of all groups.