tim/prune/function/cache/RowInfo.java

   1 package tim.prune.function.cache;
   2
   3 /**
   4  * Class to hold the information for a single table row.
   5  * Used to describe a tileset or for a single zoom level of a tileset.
   6  */
   7 public class RowInfo
   8 {
   9         private int _zoom = -1;
  10         private int _minZoom = -1, _maxZoom = -1;
  11         private int _numTiles = 0;
  12         private long _totalSize = 0L;
  13
  14
  15         /**
  16          * Set the zoom level
  17          * @param inZoom zoom level
  18          */
  19         public void setZoom(int inZoom) {
  20                 _zoom = inZoom;
  21         }
  22
  23         /**
  24          * Add a zoom level and adjust max/min
  25          * @param inZoom zoom level
  26          */
  27         public void addZoom(int inZoom)
  28         {
  29                 if (_minZoom < 0 || _minZoom > inZoom)
  30                         _minZoom = inZoom;
  31                 if (_maxZoom < inZoom)
  32                         _maxZoom = inZoom;
  33         }
  34
  35         /**
  36          * @return the zoom level
  37          */
  38         public int getZoom() {
  39                 return _zoom;
  40         }
  41
  42         /**
  43          * @return the zoom range as a string
  44          */
  45         public String getZoomRange()
  46         {
  47                 if (_minZoom < 0 && _maxZoom < 0) return "";
  48                 if (_minZoom == _maxZoom || _maxZoom < 0) return "" + _minZoom;
  49                 if (_minZoom < 0) return "" + _maxZoom;
  50                 return "" + _minZoom + " - " + _maxZoom;
  51         }
  52
  53         /**
  54          * Add a single tile of the given size
  55          * @param inSize size in bytes
  56          */
  57         public void addTile(long inSize) {
  58                 addTiles(1, inSize);
  59         }
  60
  61         /**
  62          * Add the given tiles
  63          * @param inNumTiles number of tiles to add
  64          * @param inSize total size of the tiles in bytes
  65          */
  66         public void addTiles(int inNumTiles, long inSize)
  67         {
  68                 _numTiles += inNumTiles;
  69                 _totalSize += inSize;
  70         }
  71
  72         /**
  73          * @return the total number of tiles found
  74          */
  75         public int getNumTiles() {
  76                 return _numTiles;
  77         }
  78
  79         /**
  80          * @return the total size of the tiles in bytes
  81          */
  82         public long getTotalSize() {
  83                 return _totalSize;
  84         }
  85
  86
  87         /**
  88          * Add the given RowInfo object to this one
  89          * @param inOther other row object
  90          */
  91         public void addRow(RowInfo inOther)
  92         {
  93                 if (inOther == null)
  94                         return;
  95                 _numTiles  += inOther._numTiles;
  96                 _totalSize += inOther._totalSize;
  97                 // TODO: Max age
  98                 // Zoom range
  99                 if (inOther._minZoom > 0)
 100                         addZoom(inOther._minZoom);
 101                 if (inOther._maxZoom > 0)
 102                         addZoom(inOther._maxZoom);
 103                 if (inOther._zoom > 0)
 104                         addZoom(inOther._zoom);
 105         }
 106 }