DateCoercer.java

/*
   Copyright (c) 2012 LinkedIn Corp.

   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.
*/

/**
 * $Id: $
 */

package com.linkedin.restli.examples.custom.types;

import com.linkedin.data.template.Custom;
import com.linkedin.data.template.DirectCoercer;
import com.linkedin.data.template.TemplateOutputCastException;

import java.util.Date;

/**
 * @author Moira Tagle
 * @version $Revision: $
 */

public class DateCoercer implements DirectCoercer<Date>
{
  private static final Object REGISTER_COERCER = Custom.registerCoercer(new DateCoercer(), Date.class);

  @Override
  public Long coerceInput(Date object) throws ClassCastException
  {
    return object.getTime();
  }

  @Override
  public Date coerceOutput(Object object) throws TemplateOutputCastException
  {
    if (object instanceof Long)
    {
      return new Date((Long)object);
    }
    throw new TemplateOutputCastException("Output " + object + " is not a long, and cannot be coerced to " + CustomLong.class.getName());
  }
}