eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/datasource/CdmDataSourceViewerComparator.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.taxeditor.view.datasource;
  12
  13 import org.eclipse.jface.viewers.Viewer;
  14 import org.eclipse.jface.viewers.ViewerComparator;
  15
  16 import eu.etaxonomy.cdm.config.ICdmSource;
  17 import eu.etaxonomy.cdm.database.ICdmDataSource;
  18 import eu.etaxonomy.cdm.model.metadata.CdmMetaData.MetaDataPropertyName;
  19
  20 /**
  21  * @author n.hoffmann
  22  * @created Dec 8, 2010
  23  */
  24 public class CdmDataSourceViewerComparator extends ViewerComparator {
  25
  26         private int propertyIndex;
  27         private static final int DESCENDING = 1;
  28         private int direction = DESCENDING;
  29
  30         public CdmDataSourceViewerComparator() {
  31                 this.propertyIndex = 1;
  32                 direction = DESCENDING;
  33         }
  34
  35         public void setColumn(int column) {
  36                 if (column == this.propertyIndex) {
  37                         // Same column as last sort; toggle the direction
  38                         direction = 1 - direction;
  39                 } else {
  40                         // New column; do an ascending sort
  41                         this.propertyIndex = column;
  42                         direction = DESCENDING;
  43                 }
  44         }
  45
  46         @Override
  47         public int compare(Viewer viewer, Object e1, Object e2) {
  48                 CdmMetaDataAwareDataSourceContainer d1 = (CdmMetaDataAwareDataSourceContainer) e1;
  49                 CdmMetaDataAwareDataSourceContainer d2 = (CdmMetaDataAwareDataSourceContainer) e2;
  50
  51                 ICdmSource cs1 = d1.getCdmSource();
  52                 ICdmSource cs2 = d2.getCdmSource();
  53
  54                 int result = 0;
  55
  56                 switch (propertyIndex) {
  57                         case 9:
  58                                 result = d1.getMetaData(MetaDataPropertyName.DB_CREATE_NOTE).compareTo(d2.getMetaData(MetaDataPropertyName.DB_CREATE_NOTE));
  59                                 break;
  60                         case 8:
  61                                 // is compatible
  62                                 boolean c1 = d1.isDataSourceCompatible();
  63                                 boolean c2 = d2.isDataSourceCompatible();
  64                                 if (c1 == c2){
  65                                         result = 0;
  66                                 }else if (c1 == true){
  67                                         result = -1;
  68                                 }else{
  69                                         result = 1;
  70                                 }
  71                                 break;
  72                         case 7:
  73                                 result = d1.getMetaData(MetaDataPropertyName.DB_SCHEMA_VERSION).compareTo(d2.getMetaData(MetaDataPropertyName.DB_SCHEMA_VERSION));
  74                                 break;
  75                         case 6:
  76                                 result = d1.getMetaData(MetaDataPropertyName.DB_CREATE_DATE).compareTo(d2.getMetaData(MetaDataPropertyName.DB_CREATE_DATE));
  77                                 break;
  78                         case 5:
  79                                 if(cs1 instanceof ICdmDataSource && cs2 instanceof ICdmDataSource) {
  80                                         result = ((ICdmDataSource)cs1).getDatabase().compareTo(((ICdmDataSource)cs2).getDatabase());
  81                                 }
  82
  83                                 break;
  84                         case 4:
  85                                 if(cs1 instanceof ICdmDataSource && cs2 instanceof ICdmDataSource) {
  86                                         result = ((ICdmDataSource)cs1).getDatabaseType().getName().compareTo(((ICdmDataSource)cs2).getDatabaseType().getName());
  87                                 }
  88                                 break;
  89                         case 3:
  90                                 // is running
  91                                 boolean r1 = d1.isRunning();
  92                                 boolean r2 = d2.isRunning();
  93                                 if (r1 == r2){
  94                                         result = 0;
  95                                 }else if (r1 == true){
  96                                         result = -1;
  97                                 }else{
  98                                         result = 1;
  99                                 }
 100                                 break;
 101                         case 2:
 102                                 String server1 = d1.getCdmSource().getServer();
 103                                 String server2 = d2.getCdmSource().getServer();
 104                                 // h2 databases do not have server entries
 105                                 server1 = server1 == null? "local" : server1;
 106                                 server2 = server2 == null? "local" : server2;
 107                                 result = server1.compareTo(server2);
 108                                 break;
 109                         default:
 110                                 result = d1.getCdmSource().getName().compareTo(d2.getCdmSource().getName());
 111                 }
 112
 113                 // If descending order, flip the direction
 114                 if (direction == DESCENDING) {
 115                         result = -result;
 116                 }
 117                 return result;
 118         }
 119 }