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/*
 * Copyright 2014 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.xls;

import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.DataFormat;
import org.apache.poi.ss.usermodel.Font;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;

/**
 * @author [email protected] (Marcio Endo)
 */
class PoiFormatString implements CanStyle {

  private final String format;

  public PoiFormatString(String format) {
    this.format = Preconditions.checkNotNull(format);
  }

  @Override
  public void applyTo(CellStyle style, DataFormat df, Font font) {
    style.setDataFormat(df.getFormat(format));
  }

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

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj instanceof PoiFormatString) {
      PoiFormatString that = (PoiFormatString) obj;
      return Objects.equal(this.format, that.format);
    }
    return false;
  }

}