cdmlib-io/src/main/java/eu/etaxonomy/cdm/io/common/mapping/MultipleAttributeMapperBase.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.cdm.io.common.mapping;
  12
  13 import java.sql.ResultSet;
  14 import java.sql.SQLException;
  15 import java.util.ArrayList;
  16 import java.util.HashSet;
  17 import java.util.List;
  18 import java.util.Set;
  19
  20 import org.apache.log4j.Logger;
  21
  22 import eu.etaxonomy.cdm.common.CdmUtils;
  23
  24
  25
  26 /**
  27  * @author a.mueller
  28  * @created 12.05.2009
  29  * @version 1.0
  30  */
  31 public abstract class MultipleAttributeMapperBase<SINGLE_MAPPER extends CdmSingleAttributeMapperBase> extends CdmAttributeMapperBase {
  32         @SuppressWarnings("unused")
  33         private static final Logger logger = Logger.getLogger(MultipleAttributeMapperBase.class);
  34
  35
  36 //******************************* ATTRIBUTES ***************************************/
  37
  38         protected List<SINGLE_MAPPER> singleMappers = new ArrayList<SINGLE_MAPPER>();
  39
  40
  41
  42 //********************************* CONSTRUCTOR ****************************************/
  43
  44         /**
  45          *
  46          */
  47         public MultipleAttributeMapperBase() {
  48                 singleMappers = new ArrayList<SINGLE_MAPPER>();
  49         }
  50
  51
  52 //************************************ METHODS *******************************************/
  53
  54         /* (non-Javadoc)
  55          * @see eu.etaxonomy.cdm.io.common.CdmAttributeMapperBase#getDestinationAttributeList()
  56          */
  57         @Override
  58         public List<String> getDestinationAttributeList() {
  59                 List<String> result = new ArrayList<String>();
  60                 for (SINGLE_MAPPER singleMapper : singleMappers){
  61                         result.add(singleMapper.getDestinationAttribute());
  62                 }
  63                 return result;
  64         }
  65
  66         /* (non-Javadoc)
  67          * @see eu.etaxonomy.cdm.io.common.CdmAttributeMapperBase#getDestinationAttributes()
  68          */
  69         @Override
  70         public Set<String> getDestinationAttributes() {
  71                 Set<String> result = new HashSet<String>();
  72                 result.addAll(getDestinationAttributeList());
  73                 return result;
  74         }
  75
  76         /* (non-Javadoc)
  77          * @see eu.etaxonomy.cdm.io.common.CdmAttributeMapperBase#getSourceAttributeList()
  78          */
  79         @Override
  80         public List<String> getSourceAttributeList() {
  81                 List<String> result = new ArrayList<String>();
  82                 for (SINGLE_MAPPER singleMapper : singleMappers){
  83                         result.add(singleMapper.getSourceAttribute());
  84                 }
  85                 return result;
  86         }
  87
  88         /* (non-Javadoc)
  89          * @see eu.etaxonomy.cdm.io.common.CdmAttributeMapperBase#getSourceAttributes()
  90          */
  91         @Override
  92         public Set<String> getSourceAttributes() {
  93                 Set<String> result = new HashSet<String>();
  94                 result.addAll(getSourceAttributeList());
  95                 return result;
  96         }
  97
  98
  99 /**
 100          * Returns the value of a result set attribute in its String representation.
 101          * Better move this to a subclass for DbImportMappers (does not exist yet)
 102          * @param rs
 103          * @param attribute
 104          * @return
 105          * @throws SQLException
 106          */
 107         protected String getStringDbValue(ResultSet rs, String attribute) throws SQLException {
 108                 if (CdmUtils.isEmpty(attribute)){
 109                         return null;
 110                 }
 111                 Object oId = rs.getObject(attribute);
 112                 if (oId == null){
 113                         return null;
 114                 }
 115                 String id = String.valueOf(oId);
 116                 return id;
 117         }
 118 }