Package io.druid.query.dimension

Source Code of io.druid.query.dimension.LegacyDimensionSpec

/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013  Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

package io.druid.query.dimension;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.metamx.common.IAE;

import java.util.Map;

/**
*/
public class LegacyDimensionSpec extends DefaultDimensionSpec
{
  private static final String convertValue(Object dimension, String name)
  {
    final String retVal;

    if (dimension instanceof String) {
      retVal = (String) dimension;
    } else if (dimension instanceof Map) {
      retVal = (String) ((Map) dimension).get(name);
    } else {
      throw new IAE("Unknown type[%s] for dimension[%s]", dimension.getClass(), dimension);
    }

    return retVal;
  }

  @JsonCreator
  public LegacyDimensionSpec(Object dimension)
  {
    super(convertValue(dimension, "dimension"), convertValue(dimension, "outputName"));
  }
}
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