eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/handler/UuidsParameterTypeConverter.java

   1 package eu.etaxonomy.taxeditor.handler;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.UUID;
   6
   7 import org.eclipse.core.commands.AbstractParameterValueConverter;
   8 import org.eclipse.core.commands.ParameterValueConversionException;
   9
  10 /**
  11  * Converts either a single {@link UUID} or a list of UUIDSs to a string representation
  12  * and vica versa.
  13  *
  14  * @author pplitzner
  15  * @date Sep 15, 2015
  16  *
  17  */
  18 public class UuidsParameterTypeConverter extends AbstractParameterValueConverter {
  19
  20     private static final String SEPARATOR = ",";
  21
  22     public UuidsParameterTypeConverter() {
  23     }
  24
  25     @Override
  26     public Object convertToObject(String parameterValue) throws ParameterValueConversionException {
  27         if(parameterValue.endsWith(SEPARATOR)){
  28             List<UUID> uuids = new ArrayList<UUID>();
  29             String[] split = parameterValue.split(SEPARATOR);
  30             for (String string : split) {
  31                 uuids.add(UUID.fromString(string));
  32             }
  33             return uuids;
  34         }
  35         else{
  36             return UUID.fromString(parameterValue);
  37         }
  38     }
  39
  40     @Override
  41     public String convertToString(Object parameterValue) throws ParameterValueConversionException {
  42         if(parameterValue instanceof List){
  43             List list = (List)parameterValue;
  44             String stringList = "";
  45             for (Object object : list) {
  46                 stringList += parameterValue.toString()+SEPARATOR;
  47             }
  48         }
  49         else if(parameterValue instanceof UUID){
  50             return parameterValue.toString();
  51         }
  52         else{
  53             throw new ParameterValueConversionException("Parameter is of wrong type: "+parameterValue.getClass().toString());
  54         }
  55         return null;
  56     }
  57
  58 }