+++ /dev/null
-package tim.prune.function.cache;
-
-import java.io.File;
-import java.util.ArrayList;
-
-import tim.prune.gui.map.MapSource;
-import tim.prune.gui.map.MapSourceLibrary;
-
-/**
- * Class to obtain and hold information about the current
- * tile cache including its subdirectories
- */
-public class TileCacheModel
-{
- /** Cache directory */
- private File _cacheDir = null;
- /** Array of tilesets */
- private ArrayList<TileSet> _tileSets = null;
- /** Summary information */
- private RowInfo _summaryRow = null;
- /** Cancelled flag */
- private boolean _cancelled = false;
-
-
- /**
- * Constructor
- * @param inDir start directory
- */
- public TileCacheModel(File inDir)
- {
- if (inDir != null && inDir.exists() && inDir.isDirectory() && inDir.canRead()) {
- _cacheDir = inDir;
- }
- _cancelled = false;
- }
-
- /**
- * Build the tilesets by searching recursively
- */
- public void buildTileSets()
- {
- if (_cacheDir == null) return;
-
- _tileSets = new ArrayList<TileSet>();
- // go through subdirectories, if any
- File[] subdirs = _cacheDir.listFiles();
- for (File subdir : subdirs)
- {
- if (subdir != null && subdir.isDirectory() && subdir.exists() && subdir.canRead()
- && !_cancelled)
- {
- getTileSets(subdir, null, _tileSets);
- }
- }
- // Loop over found tile sets and create summary rowinfo
- _summaryRow = new RowInfo();
- for (TileSet ts : _tileSets)
- {
- _summaryRow.addRow(ts.getRowInfo());
- }
- }
-
- /**
- * Get all the tilesets from the given directory
- * @param inDir directory to search
- * @return array of TileSet objects
- */
- private static void getTileSets(File inDir, String inParentPath, ArrayList<TileSet> inTsList)
- {
- final String wholePath = (inParentPath == null ? "" : inParentPath)
- + inDir.getName() + File.separator;
- // See if any configured backgrounds use this directory
- // or if the directories match OSM structure
- String usedByDesc = matchConfig(wholePath);
- boolean tsFound = false;
- if (usedByDesc != null || looksLikeCacheDir(inDir))
- {
- TileSet ts = new TileSet(inDir, wholePath, usedByDesc);
- if (usedByDesc != null || ts.getRowInfo().getNumTiles() > 0)
- {
- tsFound = true;
- inTsList.add(ts);
- }
- }
- // If a tileset wasn't found, look through subdirectories
- if (!tsFound)
- {
- // Go through subdirectories and look at each of them too
- File[] subdirs = inDir.listFiles();
- if (subdirs != null) {
- for (File subdir : subdirs)
- {
- if (subdir != null && subdir.exists() && subdir.isDirectory()
- && subdir.canRead())
- {
- getTileSets(subdir, wholePath, inTsList);
- }
- }
- }
- }
- }
-
- /**
- * Match the given directory name to find the configs which use it
- * @param inName name of directory to match
- * @return null if not used, otherwise comma-separated list of background names
- */
- private static String matchConfig(String inName)
- {
- if (inName == null || inName.equals(""))
- return null;
- String usedBy = null;
- for (int i=0; i<MapSourceLibrary.getNumSources(); i++)
- {
- MapSource ms = MapSourceLibrary.getSource(i);
- for (int l=0; l<2; l++)
- {
- String msdir = ms.getSiteName(l);
- if (msdir != null && msdir.equals(inName))
- {
- if (usedBy == null)
- usedBy = ms.getName();
- else
- usedBy = usedBy + ", " + ms.getName();
- }
- }
- }
- return usedBy;
- }
-
- /**
- * @param inDir directory to test
- * @return true if the subdirectories meet the normal osm layout
- */
- private static boolean looksLikeCacheDir(File inDir)
- {
- // look for at least one numeric directory, nothing else
- boolean numFound = false;
- if (inDir != null && inDir.exists() && inDir.isDirectory() && inDir.canRead())
- {
- for (File subdir : inDir.listFiles())
- {
- // Only consider readable things which exist
- if (subdir != null && subdir.exists() && subdir.canRead())
- {
- // subdirectories should have numeric names (for the zoom levels)
- if (subdir.isDirectory() && TileSet.isNumeric(subdir.getName())
- && subdir.getName().length() < 3)
- {
- numFound = true;
- }
- else return false; // either a file or non-numeric directory
- }
- }
- }
- return numFound;
- }
-
- /**
- * @return cache directory
- */
- public File getCacheDir() {
- return _cacheDir;
- }
-
- /**
- * @return number of tile sets
- */
- public int getNumTileSets()
- {
- if (_tileSets == null) return 0;
- return _tileSets.size();
- }
-
- /**
- * @return the total number of tile images found
- */
- public int getTotalTiles()
- {
- return _summaryRow.getNumTiles();
- }
-
- /**
- * @return the total number of bytes taken up with tile images
- */
- public long getTotalBytes()
- {
- return _summaryRow.getTotalSize();
- }
-
- /**
- * @param inIndex index of tileset
- * @return requested tileset
- */
- public TileSet getTileSet(int inIndex)
- {
- if (inIndex >= 0 && inIndex < getNumTileSets()) {
- return _tileSets.get(inIndex);
- }
- return null;
- }
-
- /**
- * Cancel the search
- */
- public void cancel() {
- _cancelled = true;
- }
-
- /**
- * @return true if search was cancelled
- */
- public boolean isAborted() {
- return _cancelled;
- }
-}
projects / GpsPrune.git / blobdiff