Added container permissions

src/resources/containers/ContainerPermissions.java

@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * Copyright (c) 2015 /// Project SWG /// www.projectswg.com
+ *
+ * ProjectSWG is the first NGE emulator for Star Wars Galaxies founded on
+ * July 7th, 2011 after SOE announced the official shutdown of Star Wars Galaxies.
+ * Our goal is to create an emulator which will provide a server for players to
+ * continue playing a game similar to the one they used to play. We are basing
+ * it on the final publish of the game prior to end-game events.
+ *
+ * This file is part of Holocore.
+ *
+ * --------------------------------------------------------------------------------
+ *
+ * Holocore is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Holocore 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Holocore.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+
+package resources.containers;
+
+import java.io.Serializable;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+public final class ContainerPermissions implements Serializable {
+	private static final long serialVersionUID = 1L;
+
+	private Map<String, Integer> permissionGroups;
+	private long owner;
+
+	public ContainerPermissions(long owner) {
+		this.permissionGroups = new HashMap<>();
+		this.owner = owner;
+
+		permissionGroups.put("owner", Permission.valueOf(Permission.values()));
+		permissionGroups.put("admin", Permission.valueOf(Permission.values()));
+	}
+
+	public boolean hasPermissions(String group, Permission... permissions) {
+		if (!hasPermissionGroup(group))
+			return false;
+
+		EnumSet<Permission> groupPermissions = Permission.getFlags(permissionGroups.get(group));
+
+		for (Permission permission : permissions) {
+			if (!groupPermissions.contains(permission))
+				return false;
+		}
+
+		return true;
+	}
+
+	public void addPermissions(String group, Permission... permissions) {
+		EnumSet<Permission> groupPermissions = Permission.getFlags(permissionGroups.get(group));
+
+		for (Permission permission : permissions) {
+			groupPermissions.add(permission);
+		}
+
+		permissionGroups.put(group, Permission.valueOf(groupPermissions));
+	}
+
+	public void removePermissions(String group, Permission... permissions) {
+		if (!hasPermissionGroup(group))
+			return;
+
+		EnumSet<Permission> groupPermissions = Permission.getFlags(permissionGroups.get(group));
+
+		for (Permission permission : permissions) {
+			groupPermissions.add(permission);
+		}
+
+		permissionGroups.put(group, Permission.valueOf(groupPermissions));
+	}
+
+	public void addDefaultWorldPermissions() {
+		permissionGroups.put("world", Permission.valueOf(Permission.ENTER_BUILDING, Permission.OPEN));
+	}
+
+	public void clearPermissions(String group) {
+		if (permissionGroups.containsKey(group))
+			permissionGroups.put(group, 0);
+	}
+
+	public boolean hasPermissionGroup(String group) {
+		return permissionGroups.containsKey(group);
+	}
+
+	public Set<String> getPermissionGroups() {
+		return permissionGroups.keySet();
+	}
+
+	public void setOwner(long owner) {
+		this.owner = owner;
+	}
+
+	public long getOwner() {
+		return owner;
+	}
+
+	public enum Permission {
+		OPEN(1),
+		REMOVE(1<<1),
+		ADD(1<<2),
+		MOVE(1<<3),
+		ENTER_BUILDING(1<<4);
+
+		int bitmask;
+
+		Permission(int bitmask) {
+			this.bitmask = bitmask;
+		}
+
+		public static EnumSet<Permission> getFlags(int bits) {
+			EnumSet <Permission> states = EnumSet.noneOf(Permission.class);
+			for (Permission state : values()) {
+				if ((state.bitmask & bits) != 0)
+					states.add(state);
+			}
+			return states;
+		}
+
+		public static int valueOf(EnumSet<Permission> bitmaskSet) {
+			return valueOf(bitmaskSet);
+		}
+
+		public static int valueOf(Permission... permissions) {
+			int value = 0;
+
+			for (Permission permission : permissions) {
+				value += permission.bitmask;
+			}
+
+			return value;
+		}
+	}
+}