+++ /dev/null
-package tim.prune.gui.map;
-
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-/**
- * Class to represent any map source, whether an OsmMapSource
- * or one of the more complicated ones.
- * Map sources may contain just one or several layers, and may
- * build their URLs in different ways depending on the source
- */
-public abstract class MapSource
-{
- /** File extensions */
- protected String[] _extensions = null;
-
- /** Regular expression for catching server wildcards */
- protected static final Pattern WILD_PATTERN = Pattern.compile("^(.*)\\[(.*)\\](.*)$");
-
-
- /**
- * @return the number of layers used in this source
- */
- public abstract int getNumLayers();
-
- /**
- * @return the name of the source
- */
- public abstract String getName();
-
- /**
- * @return the base url for the specified layer
- */
- public abstract String getBaseUrl(int inLayerNum);
-
- /**
- * @return the site name for the specified layer
- */
- public abstract String getSiteName(int inLayerNum);
-
- /**
- * @return the file extension for the specified layer
- */
- public final String getFileExtension(int inLayerNum) {
- return _extensions[inLayerNum];
- }
-
- /**
- * Make the URL to get the specified tile
- * @param inLayerNum number of layer, from 0 (base) to getNumLayers-1 (top)
- * @param inZoom zoom level
- * @param inX x coordinate of tile
- * @param inY y coordinate of tile
- * @return URL as string
- */
- public abstract String makeURL(int inLayerNum, int inZoom, int inX, int inY);
-
- /**
- * @return the maximum zoom level for this source
- */
- public abstract int getMaxZoomLevel();
-
- /**
- * Make a relative file path from the base directory including site name
- * @param inLayerNum layer number
- * @param inZoom zoom level
- * @param inX x coordinate
- * @param inY y coordinate
- * @return relative file path as String
- */
- public String makeFilePath(int inLayerNum, int inZoom, int inX, int inY)
- {
- return getSiteName(inLayerNum) + inZoom + "/" + inX + "/" + inY + "." + getFileExtension(inLayerNum);
- }
-
- /**
- * Checks the given url for having the right prefix and trailing slash
- * @param inUrl url to check
- * @return validated url with correct prefix and trailing slash, or null
- */
- public static String fixBaseUrl(String inUrl)
- {
- if (inUrl == null || inUrl.equals("")) {return null;}
- String urlstr = inUrl;
- boolean urlOk = false;
-
- // check prefix
- try
- {
- urlOk = new URL(urlstr.replace('[', 'w').replace(']', 'w')).toString() != null;
- }
- catch (MalformedURLException e)
- {
- urlOk = false;
- }
-
- if (!urlOk)
- {
- // fail if protocol specified
- if (urlstr.indexOf("://") >= 0) {return null;}
- // add the http protocol
- urlstr = "http://" + urlstr;
- }
- // check trailing /
- if (!urlstr.endsWith("/")) {
- urlstr = urlstr + "/";
- }
- // Validate current url, return null if not ok
- try
- {
- URL url = new URL(urlstr.replace('[', 'w').replace(']', 'w'));
- // url host must contain a dot
- if (url.getHost().indexOf('.') < 0) {return null;}
- }
- catch (MalformedURLException e) {
- urlstr = null;
- }
- return urlstr;
- }
-
- /**
- * Fix the site name by stripping off protocol and www.
- * This is used to create the file path for disk caching
- * @param inUrl url to strip
- * @return stripped url
- */
- protected static String fixSiteName(String inUrl)
- {
- if (inUrl == null || inUrl.equals("")) {return null;}
- String url = inUrl.toLowerCase();
- int idx = url.indexOf("://");
- if (idx >= 0) {url = url.substring(idx + 3);}
- if (url.startsWith("www.")) {url = url.substring(4);}
- // Strip out any "[.*]" as well
- if (url.indexOf('[') >= 0)
- {
- Matcher matcher = WILD_PATTERN.matcher(url);
- if (matcher.matches()) {
- url = matcher.group(1) + matcher.group(3);
- if (url.length() > 1 && url.charAt(0) == '.') {
- url = url.substring(1);
- }
- }
- }
- return url;
- }
-
- /**
- * @return string which can be written to the Config
- */
- public abstract String getConfigString();
-
- /**
- * @return semicolon-separated list of base urls and extensions in order
- */
- public String getSiteStrings()
- {
- StringBuilder sb = new StringBuilder();
- for (int i=0; i<getNumLayers(); i++)
- {
- String url = getBaseUrl(i);
- if (url != null)
- {
- sb.append(url);
- sb.append(';');
- sb.append(getFileExtension(i));
- sb.append(';');
- }
- }
- return sb.toString();
- }
-}
projects / GpsPrune.git / blobdiff