root / import / ext3D / trunk / libCacheService / src / org / gvsig / cacheservice / CacheService.java @ 14926
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package org.gvsig.cacheservice; |
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import java.awt.Dimension; |
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import java.awt.Point; |
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import java.awt.geom.Rectangle2D; |
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import java.io.File; |
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/**
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*
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* @author Rafael Gait�n <rgaitan@dsic.upv.es>, modified code from cq RasterCache of Luis W. Sevilla.
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*
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*/
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public abstract class CacheService { |
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/**
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* Tipo planetario. Las coordenadas son Lat/Lon
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*/
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public static int SPHERIC = 0x10; |
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/**
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* Tipo plano (UTM). Las coordenadas son m�tricas.
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*/
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public static int PLANE = 0x20; |
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/**
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* el cach� se realiza en funci�n del tama�o del fichero,
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* con los tiles relativos a su coordenada 0,0.
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*/
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public static int LOCAL = 0x100; |
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/**
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* el cach� se realiza con parametros globales, de manera que
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* el tileado es con respecto a una rejilla de referencia, y no
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* calculado especialmente para ese raster.
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*/
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public static int GLOBAL = 0x200; |
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public static final Rectangle2D sphericGlobalBounds = |
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new Rectangle2D.Double(-180,-90,360,180); |
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public static final Rectangle2D planeGlobalBounds = |
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new Rectangle2D.Double(-20000000,-10000000,40000000,20000000); |
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public static int TILEID_TYPE_GOOGLE = 0x01; |
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public static int TILEID_TYPE_OSGPLANET = 0x02; |
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public static int TILEID_TYPE_VIRTUALEARTH = 0x03; |
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private String _name = ""; |
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private String _planet = ""; |
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private int _cacheType = GLOBAL | SPHERIC; |
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private int _tileIdType = TILEID_TYPE_OSGPLANET; |
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private String _cacheRootDir = "/data/cache"; |
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private String _cacheDir = null; |
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private int _tileSize = 256; |
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private boolean _withHashDirs = false; |
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private int _hashDirsNumber = 100; |
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private int _minLevel = 0; |
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private int _maxLevel = 20; |
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private Rectangle2D _bounds; |
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private Rectangle2D _fullExtent = sphericGlobalBounds; |
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/**
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* @param planet
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* @param name
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* @param server
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*/
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public CacheService(String planet, String name) { |
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super();
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this._name = name;
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this._planet = planet;
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setBounds(sphericGlobalBounds); |
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} |
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/**
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* Devuelve el tama�o de Tile como Dimension;
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* @return
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*/
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public Dimension computeSz() { |
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return new Dimension(getTileSize(),getTileSize()); |
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} |
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/**
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* Calcula el Extent de un tile a partir de su level y num
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* @param tileNum
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* @return
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*/
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public Rectangle2D computeBBox(TileNum tileNum) { |
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int partsX = getFullSize(tileNum.getLevel()).width/getTileSize();
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int partsY = partsX/2; |
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double stepX = (getFullExtent().getMaxX()-getFullExtent().getMinX())/partsX;
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double stepY = (getFullExtent().getMaxY()-getFullExtent().getMinY())/partsY;
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double l = getFullExtent().getMinX()+(double)tileNum.getX()*stepX; |
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//double r = l+stepX;
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double b;
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if ((_cacheType & SPHERIC) == SPHERIC)
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b = getFullExtent().getMaxY()-(double)tileNum.getY()*stepY - stepY;
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else
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b = getFullExtent().getMinY()+(double)tileNum.getY()*stepY;
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return new Rectangle2D.Double(l,b,stepX, Math.abs(stepY)); |
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} |
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public Dimension getFullSize(int level) { |
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int w = getTileSize() * (int)Math.pow(2,level); |
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return new Dimension(w, w/2); |
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} |
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/**
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* Devuelve el numero de Tiles (ancho y alto) para ese nivel.
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* @param level
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* @return
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*/
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public Dimension getLevelSize(int level) { |
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int w = (int)Math.pow(2,level); |
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return new Dimension(w, w/2); |
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} |
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public boolean isFileInCache(String fName) { |
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File cacheFile = new File(fName); |
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return cacheFile.exists();
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} |
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public void setCacheDir(String dir) { |
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_cacheDir = dir; |
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} |
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public String getCacheDir() { |
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File file;
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if (_cacheDir == null) { |
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// Compruebo si existe el directorio del planeta
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_cacheDir = getCacheRootDir()+"/"+getPlanet()+"/"; |
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file = new File(_cacheDir); |
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if (!file.exists()) file.mkdir();
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// Compruebo si existe el directorio del servidor
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_cacheDir += getName()+"/";
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} |
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file = new File(_cacheDir); |
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if (!file.exists()) file.mkdirs();
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return _cacheDir;
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} |
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/**
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* @return Returns the cacheRootDir.
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*/
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public String getCacheRootDir() { |
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return _cacheRootDir;
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} |
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/**
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* @param cacheRootDir The cacheRootDir to set.
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*/
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public void setCacheRootDir(String cacheRootDir) { |
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_cacheRootDir = cacheRootDir; |
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} |
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/**
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* @return Returns the name.
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*/
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public String getName() { |
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return _name;
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} |
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/**
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* @param name The name to set.
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*/
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public void setName(String name) { |
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_name = name; |
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} |
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/**
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* @return Returns the planet.
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*/
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public String getPlanet() { |
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return _planet;
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} |
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/**
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* @param planet The planet to set.
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*/
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public void setPlanet(String planet) { |
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_planet = planet; |
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} |
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/**
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* @return Returns the tileSize.
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*/
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public int getTileSize() { |
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return _tileSize;
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} |
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/**
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* @param tileSize The tileSize to set.
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*/
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public void setTileSize(int tileSize) { |
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_tileSize = tileSize; |
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} |
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/**
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* @return Returns the tileIdType.
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*/
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public int getTileIdType() { |
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return _tileIdType;
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} |
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/**
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* @param tileIdType The tileIdType to set.
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*/
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public void setTileIdType(int tileIdType) { |
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_tileIdType = tileIdType; |
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} |
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/**
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* @return Returns the maxLevel.
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*/
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public int getMaxLevel() { |
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return _maxLevel;
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} |
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/**
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* @param maxLevel The maxLevel to set.
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*/
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public void setMaxLevel(int maxLevel) { |
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_maxLevel = maxLevel; |
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} |
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/**
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* @return Returns the minLevel.
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*/
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public int getMinLevel() { |
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return _minLevel;
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} |
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/**
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* @param minLevel The minLevel to set.
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*/
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public void setMinLevel(int minLevel) { |
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_minLevel = minLevel; |
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} |
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/**
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* @return Returns the bounds.
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*/
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public Rectangle2D getBounds() { |
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return _bounds;
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} |
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public void setBounds(Rectangle2D r) { |
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_bounds = r; |
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} |
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/**
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* @return Returns the cacheType.
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*/
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public int getCacheType() { |
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return _cacheType;
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} |
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/**
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* @param cacheType The cacheType to set.
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*/
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public void setCacheType(int cacheType) { |
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_cacheType = cacheType; |
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if ((cacheType & GLOBAL) == GLOBAL)
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if ((cacheType & PLANE) == PLANE)
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setFullExtent(planeGlobalBounds); |
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else if ((cacheType & SPHERIC) == SPHERIC) |
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setFullExtent(sphericGlobalBounds); |
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} |
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/**
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* @return Returns the fullExtent.
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*/
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public Rectangle2D getFullExtent() { |
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return _fullExtent;
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} |
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/**
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* @param fullExtent The fullExtent to set.
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*/
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public void setFullExtent(Rectangle2D fullExtent) { |
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_fullExtent = fullExtent; |
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} |
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/**
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* Gets Number of Hash Directories. 100 by default.
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* @return Returns the hashDirsOrder.
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*/
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public int getHashDirsNumber() { |
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return _hashDirsNumber;
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} |
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/**
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* Sets Number of Hash Directories.
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* @param hashDirsOrder The hashDirsOrder to set.
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*/
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public void setHashDirsNumber(int hashDirsNumber) { |
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_hashDirsNumber = hashDirsNumber; |
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} |
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/**
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* returns if this cache has HashDirectories. False by difault.
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* @return Returns the withHashDirs.
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*/
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public boolean isWithHashDirs() { |
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return _withHashDirs;
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} |
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/**
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* sets wheter this cache has HashDirectories or no.
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* @param withHashDirs The withHashDirs to set.
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*/
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public void setWithHashDirs(boolean withHashDirs) { |
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_withHashDirs = withHashDirs; |
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} |
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/**
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* Compute HashDirNumbre from tileNumber.
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* @param num tileNumber (without level).
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* @return
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*/
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public String getHashDir(Point num) { |
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String hd = null; |
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hd = ""+(num.x % _hashDirsNumber);
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return hd;
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} |
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} |