org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/jcr/internal/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.eclipse.ui.workbench.jcr.internal;
  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.ArgeoException;
  27 import org.argeo.eclipse.ui.workbench.WorkbenchConstants;
  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 implements
  34                 WorkbenchConstants {
  35         private static final long serialVersionUID = -5405794508731390147L;
  36
  37         // To be able to change column order easily
  38         public static final int COLUMN_PROPERTY = 0;
  39         public static final int COLUMN_VALUE = 1;
  40         public static final int COLUMN_ATTRIBUTES = 2;
  41
  42         // Utils
  43         protected DateFormat timeFormatter = new SimpleDateFormat(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_ATTRIBUTES:
  62                                                 return JcrUtils.getPropertyDefinitionAsString(prop);
  63                                         }
  64                                 } else {
  65                                         switch (columnIndex) {
  66                                         case COLUMN_PROPERTY:
  67                                                 return prop.getName();
  68                                         case COLUMN_VALUE:
  69                                                 return formatValueAsString(prop.getValue());
  70                                         case COLUMN_ATTRIBUTES:
  71                                                 return JcrUtils.getPropertyDefinitionAsString(prop);
  72                                         }
  73                                 }
  74                         } else if (element instanceof Value) {
  75                                 Value val = (Value) element;
  76
  77                                 switch (columnIndex) {
  78                                 case COLUMN_PROPERTY:
  79                                         // Nothing to show
  80                                         return "";
  81                                 case COLUMN_VALUE:
  82                                         return formatValueAsString(val);
  83                                 case COLUMN_ATTRIBUTES:
  84                                         // Corresponding attributes are listed on the parent
  85                                         return "";
  86                                 }
  87                         }
  88
  89                 } catch (RepositoryException re) {
  90                         throw new ArgeoException(
  91                                         "Unexepected error while getting property values", re);
  92                 }
  93                 return null;
  94         }
  95
  96         private String formatValueAsString(Value value) {
  97                 // TODO enhance this method
  98                 try {
  99                         String strValue;
 100
 101                         if (value.getType() == PropertyType.BINARY)
 102                                 strValue = "<binary>";
 103                         else if (value.getType() == PropertyType.DATE)
 104                                 strValue = timeFormatter.format(value.getDate().getTime());
 105                         else
 106                                 strValue = value.getString();
 107                         return strValue;
 108                 } catch (RepositoryException e) {
 109                         throw new ArgeoException("unexpected error while formatting value",
 110                                         e);
 111                 }
 112         }
 113 }