org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/PropertyLabelProvider.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.cms.ui.jcr;
  17
  18 import java.text.DateFormat;
  19 import java.text.SimpleDateFormat;
  20
  21 import javax.jcr.Property;
  22 import javax.jcr.PropertyType;
  23 import javax.jcr.RepositoryException;
  24 import javax.jcr.Value;
  25
  26 import org.argeo.cms.ui.CmsConstants;
  27 import org.argeo.eclipse.ui.EclipseUiException;
  28 import org.argeo.jcr.JcrUtils;
  29 import org.eclipse.jface.viewers.ColumnLabelProvider;
  30 import org.eclipse.jface.viewers.ViewerCell;
  31
  32 /** Default basic label provider for a given JCR Node's properties */
  33 public class PropertyLabelProvider extends ColumnLabelProvider {
  34         private static final long serialVersionUID = -5405794508731390147L;
  35
  36         // To be able to change column order easily
  37         public static final int COLUMN_PROPERTY = 0;
  38         public static final int COLUMN_VALUE = 1;
  39         public static final int COLUMN_TYPE = 2;
  40         public static final int COLUMN_ATTRIBUTES = 3;
  41
  42         // Utils
  43         protected DateFormat timeFormatter = new SimpleDateFormat(CmsConstants.DATE_TIME_FORMAT);
  44
  45         public void update(ViewerCell cell) {
  46                 Object element = cell.getElement();
  47                 cell.setText(getColumnText(element, cell.getColumnIndex()));
  48         }
  49
  50         public String getColumnText(Object element, int columnIndex) {
  51                 try {
  52                         if (element instanceof Property) {
  53                                 Property prop = (Property) element;
  54                                 if (prop.isMultiple()) {
  55                                         switch (columnIndex) {
  56                                         case COLUMN_PROPERTY:
  57                                                 return prop.getName();
  58                                         case COLUMN_VALUE:
  59                                                 // Corresponding values are listed on children
  60                                                 return "";
  61                                         case COLUMN_TYPE:
  62                                                 return JcrBrowserUtils.getPropertyTypeAsString(prop);
  63                                         case COLUMN_ATTRIBUTES:
  64                                                 return JcrUtils.getPropertyDefinitionAsString(prop);
  65                                         }
  66                                 } else {
  67                                         switch (columnIndex) {
  68                                         case COLUMN_PROPERTY:
  69                                                 return prop.getName();
  70                                         case COLUMN_VALUE:
  71                                                 return formatValueAsString(prop.getValue());
  72                                         case COLUMN_TYPE:
  73                                                 return JcrBrowserUtils.getPropertyTypeAsString(prop);
  74                                         case COLUMN_ATTRIBUTES:
  75                                                 return JcrUtils.getPropertyDefinitionAsString(prop);
  76                                         }
  77                                 }
  78                         } else if (element instanceof Value) {
  79                                 Value val = (Value) element;
  80                                 switch (columnIndex) {
  81                                 case COLUMN_PROPERTY:
  82                                         // Nothing to show
  83                                         return "";
  84                                 case COLUMN_VALUE:
  85                                         return formatValueAsString(val);
  86                                 case COLUMN_TYPE:
  87                                         // listed on the parent
  88                                         return "";
  89                                 case COLUMN_ATTRIBUTES:
  90                                         // Corresponding attributes are listed on the parent
  91                                         return "";
  92                                 }
  93                         }
  94                 } catch (RepositoryException re) {
  95                         throw new EclipseUiException("Cannot retrieve prop value on " + element, re);
  96                 }
  97                 return null;
  98         }
  99
 100         private String formatValueAsString(Value value) {
 101                 // TODO enhance this method
 102                 try {
 103                         String strValue;
 104
 105                         if (value.getType() == PropertyType.BINARY)
 106                                 strValue = "<binary>";
 107                         else if (value.getType() == PropertyType.DATE)
 108                                 strValue = timeFormatter.format(value.getDate().getTime());
 109                         else
 110                                 strValue = value.getString();
 111                         return strValue;
 112                 } catch (RepositoryException e) {
 113                         throw new EclipseUiException("unexpected error while formatting value", e);
 114                 }
 115         }
 116 }