package org.kuali.student.lum.lu.ui.tools.server.gwt;

 import java.util.Map;

 import org.apache.log4j.Logger;

 import org.kuali.student.common.ui.client.service.DataSaveResult;

 import org.kuali.student.common.ui.server.gwt.DataService;

 import org.kuali.student.common.ui.shared.IdAttributes;

 import org.kuali.student.core.assembly.data.AssemblyException;

 import org.kuali.student.core.assembly.data.Data;

 import org.kuali.student.core.assembly.data.Metadata;

 import org.kuali.student.core.assembly.dictionary.MetadataServiceImpl;

 import org.kuali.student.core.assembly.old.Assembler;

 import org.kuali.student.core.assembly.old.data.SaveResult;

 import org.kuali.student.core.assembly.transform.MetadataFilter;

 import org.kuali.student.core.assembly.transform.TransformFilter;

 import org.kuali.student.core.exceptions.DataValidationErrorException;

 import org.kuali.student.core.exceptions.DoesNotExistException;

 import org.kuali.student.core.exceptions.InvalidParameterException;

 import org.kuali.student.core.exceptions.MissingParameterException;

 import org.kuali.student.core.exceptions.OperationFailedException;

 import org.kuali.student.core.rice.authorization.PermissionType;

 public class CluSetDataService  implements DataService{

     final static Logger LOG = Logger.getLogger(CluSetDataService.class);

     private Assembler<Data, Void> assembler;

     private MetadataServiceImpl metadataService;

     public MetadataServiceImpl getMetadataService() {

         return metadataService;

     }

     public void setMetadataService(MetadataServiceImpl metadataService) {

         this.metadataService = metadataService;

     }

     public Assembler<Data, Void> getAssembler() {

         return assembler;

     }

     public void setAssembler(Assembler<Data, Void> assembler) {

         this.assembler = assembler;

     }

     @Override

     public Data getData(String dataId) throws OperationFailedException, DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException {

         Data result = null;

         try {

             result = assembler.get(dataId);

         } catch (Exception e){

             throw new OperationFailedException("Failed to retrieve data from id " + dataId, e);

         }

         return result;

     }

     @Override

     public Metadata getMetadata(String id, Map<String,String> idAttributes) {

         Metadata metadata = metadataService.getMetadata(id);

         return metadata;

     }

     protected String getDefaultMetaDataType() {

         return null; //DEFAULT_METADATA_STATE;

     }

     protected String getDefaultMetaDataState() {

         return null; //DEFAULT_METADATA_STATE;

     }

     @Override

     public Boolean isAuthorized(PermissionType type, Map<String, String> attributes) {

         return new Boolean(true);

     }

     @Override

     public DataSaveResult saveData(Data data) throws OperationFailedException, DataValidationErrorException {

         try {

             SaveResult<Data> saveResult = assembler.save(data);

             if (saveResult != null) {

                 return new DataSaveResult(saveResult.getValidationResults(), saveResult.getValue());

             }

         } catch (Exception e) {

             LOG.error("Unable to save", e);

             throw new OperationFailedException("Unable to save");

         }

         return null;

     }

 }