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/*
 * Copyright 2013 Objectos, Fábrica de Software LTDA.
 *
 * 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.objectos.way.io;

import java.util.Objects;

import br.com.objectos.comuns.io.ColumnKey;
import br.com.objectos.comuns.io.Line;

/**
 * @author [email protected] (Marcio Endo)
 */
public abstract class RecordKey {

  private final String id;

  final ColumnKey type;

  RecordKey(String id, ColumnKey type) {
    this.id = Objects.requireNonNull(id, "id");
    this.type = Objects.requireNonNull(type, "type");
  }

  public String getId() {
    return id.toString();
  }

  @Override
  public String toString() {
    return id;
  }

  abstract Object apply(Line line);

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

  @Override
  public final boolean equals(Object obj) {
    if (obj == this) {
      return true;
    }
    if (obj == null) {
      return false;
    }

    @SuppressWarnings("rawtypes")
    Class clazz = getClass();

    if (clazz.isAssignableFrom(obj.getClass())) {
      RecordKey that = clazz.cast(obj);
      return Objects.equals(this.id, that.id);
    } else {
      return false;
    }
  }

}