SMSSpoutKeyMap.java

package me.desht.scrollingmenusign.spout;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.bukkit.configuration.serialization.ConfigurationSerializable;
import org.getspout.spoutapi.keyboard.Keyboard;

import com.google.common.base.Joiner;

public class SMSSpoutKeyMap implements ConfigurationSerializable {
    private final Set<Keyboard> keys;

    public SMSSpoutKeyMap(String definition) {
        keys = new HashSet<Keyboard>();

        if (definition == null || definition.isEmpty()) {
            return;
        }
        String[] wanted = definition.split("\\+");
        for (String w : wanted) {
            w = w.toUpperCase();
            if (!w.startsWith("KEY_"))
                w = "KEY_" + w;
            keys.add(Keyboard.valueOf(w));
        }
    }

    public SMSSpoutKeyMap() {
        this(null);
    }

    public void add(Keyboard key) {
        keys.add(key);
    }

    public void remove(Keyboard key) {
        keys.remove(key);
    }

    public void clear() {
        keys.clear();
    }

    public int keysPressed() {
        return keys.size();
    }

    @Override
    public String toString() {
        return Joiner.on("+").join(keys);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((keys == null) ? 0 : keys.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        SMSSpoutKeyMap other = (SMSSpoutKeyMap) obj;
        if (keys == null) {
            if (other.keys != null)
                return false;
        } else if (!keys.equals(other.keys))
            return false;
        return true;
    }

    @Override
    public Map<String, Object> serialize() {
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("keymap", this.toString());
        return map;
    }

    public static SMSSpoutKeyMap deserialize(Map<String, Object> map) {
        return new SMSSpoutKeyMap((String) map.get("keymap"));
    }
}