106 lines
2.9 KiB
Java
106 lines
2.9 KiB
Java
/*
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* ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
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* Copyright (C) 2012 Kristian S. Stangeland
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program;
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* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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package com.comphenix.protocol.reflect;
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import java.lang.reflect.Field;
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import java.util.Set;
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import com.google.common.collect.BiMap;
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import com.google.common.collect.HashBiMap;
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/**
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* Represents a traditional int field enum.
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*
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* @author Kristian
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*/
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public class IntEnum {
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// Used to convert between IDs and names
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protected BiMap<Integer, String> members = HashBiMap.create();
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/**
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* Registers every declared integer field.
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*/
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public IntEnum() {
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registerAll();
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}
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/**
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* Registers every public int field as a member.
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*/
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protected void registerAll() {
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try {
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// Register every int field
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for (Field entry : this.getClass().getFields()) {
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if (entry.getType().equals(int.class)) {
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registerMember(entry.getInt(this), entry.getName());
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}
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}
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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}
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/**
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* Registers a member.
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* @param id - id of member.
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* @param name - name of member.
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*/
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protected void registerMember(int id, String name) {
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members.put(id, name);
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}
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/**
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* Determines whether or not the given member exists.
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* @param id - the ID of the member to find.
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* @return TRUE if a member with the given ID exists, FALSE otherwise.
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*/
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public boolean hasMember(int id) {
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return members.containsKey(id);
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}
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/**
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* Retrieve the ID of the member with the given name.
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* @param name - name of member to retrieve.
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* @return ID of the member, or NULL if not found.
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*/
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public Integer valueOf(String name) {
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return members.inverse().get(name);
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}
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/**
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* Retrieve the name of the member with the given id.
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* @param id - id of the member to retrieve.
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* @return Declared name of the member, or NULL if not found.
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*/
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public String getDeclaredName(Integer id) {
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return members.get(id);
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}
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/**
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* Retrieve the ID of every registered member.
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* @return Enumeration of every value.
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*/
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public Set<Integer> values() {
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return members.keySet();
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}
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}
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