/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.caelum.vraptor.validator;

import java.io.Serializable;
import java.util.Objects;
import java.util.ResourceBundle;

import javax.enterprise.inject.Vetoed;

/**
 * Represents a lazy i18n parameter
 * Use:
 * <code>
 *     I18nMessage message = new I18nMessage("category", "key", new I18nParam("lazy.param"));
 * </code>
 * @author Lucas Cavalcanti
 * @since 3.4.0
 */
@Vetoed
public class I18nParam implements Serializable {

	public static final long serialVersionUID = 1L;

	private final String key;

	public I18nParam(String key) {
		this.key = key;
	}

	public String getKey(ResourceBundle bundle) {
		return bundle.getString(key);
	}

	@Override
	public String toString() {
		return String.format("i18n(%s)", key);
	}

	@Override
	public int hashCode() {
		return Objects.hashCode(key);
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) return true;
		if (obj == null) return false;
		if (getClass() != obj.getClass()) return false;
		I18nParam other = (I18nParam) obj;
		return Objects.equals(key, other.key);
	}
}