org.argeo.eclipse.ui/src/org/argeo/eclipse/ui/fs/NioFileLabelProvider.java

   1 package org.argeo.eclipse.ui.fs;
   2
   3 import java.io.IOException;
   4 import java.nio.file.Files;
   5 import java.nio.file.Path;
   6
   7 import org.argeo.eclipse.ui.EclipseUiUtils;
   8 import org.eclipse.jface.viewers.ColumnLabelProvider;
   9
  10 /** Expect a {@link Path} as input element */
  11 public class NioFileLabelProvider extends ColumnLabelProvider {
  12         private static final long serialVersionUID = 2160026425187796930L;
  13         private final String propName;
  14
  15         public NioFileLabelProvider(String propName) {
  16                 this.propName = propName;
  17         }
  18
  19         @Override
  20         public String getText(Object element) {
  21                 try {
  22                         if (element instanceof ParentDir) {
  23                                 switch (propName) {
  24                                 case FsUiConstants.PROPERTY_SIZE:
  25                                         return "-";
  26                                 case FsUiConstants.PROPERTY_LAST_MODIFIED:
  27                                         return Files.getLastModifiedTime(((ParentDir) element).getPath()).toString();
  28                                 case FsUiConstants.PROPERTY_TYPE:
  29                                         return "Folder";
  30                                 }
  31                         }
  32
  33                         Path path = (Path) element;
  34                         switch (propName) {
  35                         case FsUiConstants.PROPERTY_SIZE:
  36                                 if (Files.isDirectory(path))
  37                                         return "-";
  38                                 else
  39                                         return FsUiUtils.humanReadableByteCount(Files.size(path), false);
  40                         case FsUiConstants.PROPERTY_LAST_MODIFIED:
  41                                 return Files.getLastModifiedTime(path).toString();
  42                         case FsUiConstants.PROPERTY_TYPE:
  43                                 if (Files.isDirectory(path))
  44                                         return "Folder";
  45                                 else {
  46                                         String mimeType = Files.probeContentType(path);
  47                                         if (EclipseUiUtils.isEmpty(mimeType))
  48                                                 return "Unknown";
  49                                         else
  50                                                 return mimeType;
  51                                 }
  52                         default:
  53                                 throw new IllegalArgumentException("Unsupported property " + propName);
  54                         }
  55                 } catch (IOException ioe) {
  56                         throw new FsUiException("Cannot get property " + propName + " on " + element);
  57                 }
  58         }
  59 }