package org.kuali.ole.service.impl;
   
   import org.kuali.ole.docstore.common.document.content.bib.marc.BibMarcRecord;
   import org.kuali.ole.docstore.common.document.content.bib.marc.DataField;
   import org.kuali.ole.docstore.common.document.content.bib.marc.SubField;
   import org.kuali.ole.service.OverlayFileReaderService;
   
   import java.util.LinkedHashMap;
   import java.util.List;
  
  /**
   * Created with IntelliJ IDEA.
   * User: vivekb
   * Date: 2/23/13
   * Time: 1:02 PM
   * To change this template use File | Settings | File Templates.
   */
  public class OverlayMrcFileReaderServiceImpl implements OverlayFileReaderService{
      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(OverlayMrcFileReaderServiceImpl.class);
  
      private Object object;
  
      @Override
      public void setObject(Object object) {
          this.object = object;
      }
  
      @Override
      public String getInputFieldValue(String incomingField) {
          if(object!=null && object instanceof BibMarcRecord) {
              BibMarcRecord bibMarcRecord = (BibMarcRecord) object;
              List<DataField> dataFields = bibMarcRecord.getDataFields();
              OverlayLookupTableServiceImpl overlayLookupTableService = new OverlayLookupTableServiceImpl();
              try {
                  LinkedHashMap<String,SubField> subFieldMap =  overlayLookupTableService.getOverlayDataFieldService().getSubFieldValueMap(dataFields);
                  String incomingFieldValue = overlayLookupTableService.getFieldValueFromSubField(incomingField, subFieldMap);
                  return  incomingFieldValue!=null?incomingFieldValue:"";
              } catch (Exception e) {
                  e.printStackTrace();
                  LOG.error("Exception while getting input field value"+e.getMessage());
              }
          }
          return "";
      }
  }