package org.kuali.common.devops.vagrant.cloud.json;
   
   import static org.kuali.common.devops.vagrant.cloud.json.Timestamps.newSimpleDateFormatBuilder;
   import static org.kuali.common.util.base.Precondition.checkNotNull;
   
   import java.io.IOException;
   import java.text.ParseException;
   import java.text.SimpleDateFormat;
   
  import org.apache.commons.lang3.builder.Builder;
  
  import com.fasterxml.jackson.core.JsonParser;
  import com.fasterxml.jackson.core.JsonProcessingException;
  import com.fasterxml.jackson.databind.DeserializationContext;
  import com.fasterxml.jackson.databind.JsonDeserializer;
  
  public class TimestampDeserializer extends JsonDeserializer<Long> {
  
      public TimestampDeserializer() {
          this(newSimpleDateFormatBuilder());
      }
  
      public TimestampDeserializer(Builder<SimpleDateFormat> builder) {
          this.builder = checkNotNull(builder, "builder");
      }
  
      private final Builder<SimpleDateFormat> builder;
  
      @Override
      public Long deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException {
          SimpleDateFormat sdf = builder.build();
          try {
              return sdf.parse(jp.getText()).getTime();
          } catch (ParseException e) {
              throw new IOException(e);
          }
      }
  
  }