+++ /dev/null
-package tim.prune.gui.map;
-
-import java.util.regex.Matcher;
-import tim.prune.I18nManager;
-
-/**
- * Class to provide a map source for all OSM-like sources
- * (eg mapnik, opencyclemap, openpistemap etc).
- * These can be single-layer or double-layer sources with tiles
- * in various formats (default png)
- */
-public class OsmMapSource extends MapSource
-{
- /** Name for this source */
- private String _name = null;
- /** Base urls */
- private String[] _baseUrls = null;
- /** Site names */
- private String[] _siteNames = null;
- /** Maximum zoom level */
- private int _maxZoom = 0;
- /** API key, usually remains empty */
- private String _apiKey = null;
-
-
- /**
- * Constructor giving single name and url
- * @param inName source name
- * @param inUrl base url
- */
- public OsmMapSource(String inName, String inUrl)
- {
- this(inName, inUrl, "png", null, null, 18);
- }
-
- /**
- * Constructor giving name, two strings and maximum zoom
- * @param inName source name
- * @param inStr1 base layer url
- * @param inStr2 either base layer extension or upper layer url
- * @param inMaxZoom maximum zoom level
- */
- public OsmMapSource(String inName, String inStr1, String inStr2, int inMaxZoom)
- {
- if (inStr2 != null && inStr2.length() == 3)
- init(inName, inStr1, inStr2, null, null, inMaxZoom);
- else
- init(inName, inStr1, "png", inStr2, "png", inMaxZoom);
- }
-
- /**
- * Constructor giving name, urls, extensions and maximum zoom
- * @param inName source name
- * @param inUrl1 base layer url
- * @param inExt1 extension for base layer
- * @param inUrl2 upper layer url
- * @param inExt2 extension for top layer
- * @param inMaxZoom maximum zoom level
- */
- public OsmMapSource(String inName, String inUrl1, String inExt1,
- String inUrl2, String inExt2, int inMaxZoom)
- {
- init(inName, inUrl1, inExt1, inUrl2, inExt2, inMaxZoom);
- }
-
- /**
- * Initialisation giving name, urls, extensions and maximum zoom
- * @param inName source name
- * @param inUrl1 base layer url
- * @param inExt1 extension for base layer
- * @param inUrl2 upper layer url
- * @param inExt2 extension for top layer
- * @param inMaxZoom maximum zoom level
- */
- private void init(String inName, String inUrl1, String inExt1,
- String inUrl2, String inExt2, int inMaxZoom)
- {
- _name = inName;
- if (_name == null || _name.trim().equals("")) {_name = I18nManager.getText("mapsource.unknown");}
- _baseUrls = new String[2];
- _baseUrls[0] = fixBaseUrl(inUrl1);
- _baseUrls[1] = fixBaseUrl(inUrl2);
- _extensions = new String[2];
- _extensions[0] = inExt1;
- _extensions[1] = inExt2;
- _siteNames = new String[2];
- _siteNames[0] = fixSiteName(_baseUrls[0]);
- _siteNames[1] = fixSiteName(_baseUrls[1]);
- // Swap layers if second layer given without first
- if (_baseUrls[0] == null && _baseUrls[1] != null)
- {
- _baseUrls[0] = _baseUrls[1];
- _siteNames[0] = _siteNames[1];
- _baseUrls[1] = _siteNames[1] = null;
- }
- _maxZoom = inMaxZoom;
- }
-
- /** Set the API key (if required) */
- public void setApiKey(String inKey)
- {
- _apiKey = inKey;
- }
-
- /**
- * Construct a new map source from its config string
- * @param inConfigString string from Config, separated by semicolons
- * @return new map source, or null if not parseable
- */
- public static OsmMapSource fromConfig(String inConfigString)
- {
- OsmMapSource source = null;
- if (inConfigString.startsWith("o:"))
- {
- String[] items = inConfigString.substring(2).split(";");
- try {
- if (items.length == 3) { // single source url
- source = new OsmMapSource(items[0], items[1], null, Integer.parseInt(items[2]));
- }
- else if (items.length == 4) { // two urls or one url plus extension
- source = new OsmMapSource(items[0], items[1], items[2], Integer.parseInt(items[3]));
- }
- else if (items.length == 6) { // two urls and two extensions
- source = new OsmMapSource(items[0], items[1], items[2], items[3], items[4], Integer.parseInt(items[5]));
- }
- } catch (NumberFormatException nfe) {}
- }
- return source;
- }
-
- /**
- * @return name
- */
- public String getName() {
- return _name;
- }
-
- /** Number of layers */
- public int getNumLayers() {
- return _baseUrls[1] == null?1:2;
- }
-
- /** Base url for this source */
- public String getBaseUrl(int inLayerNum) {
- return _baseUrls[inLayerNum];
- }
-
- /** site name without protocol or www. */
- public String getSiteName(int inLayerNum) {
- return _siteNames[inLayerNum];
- }
-
- /**
- * Make the URL to get the specified tile
- */
- public String makeURL(int inLayerNum, int inZoom, int inX, int inY)
- {
- // Check if the base url has a [1234], if so replace at random
- StringBuffer url = new StringBuffer();
- url.append(pickServerUrl(_baseUrls[inLayerNum]));
- url.append(inZoom).append('/').append(inX).append('/').append(inY);
- url.append('.').append(getFileExtension(inLayerNum));
- if (_apiKey != null)
- {
- url.append("?apikey=").append(_apiKey);
- }
- return url.toString();
- }
-
- /**
- * @return maximum zoom level
- */
- public final int getMaxZoomLevel()
- {
- return _maxZoom;
- }
-
- /**
- * If the base url contains something like [1234], then pick a server
- * @param inBaseUrl base url
- * @return modified base url
- */
- protected static final String pickServerUrl(String inBaseUrl)
- {
- if (inBaseUrl == null || inBaseUrl.indexOf('[') < 0) {
- return inBaseUrl;
- }
- // Check for [.*] (once only)
- // Only need to support one, make things a bit easier
- final Matcher matcher = WILD_PATTERN.matcher(inBaseUrl);
- // if not, return base url unchanged
- if (!matcher.matches()) {
- return inBaseUrl;
- }
- // if so, pick one at random and replace in the String
- final String match = matcher.group(2);
- final int numMatches = match.length();
- String server = null;
- if (numMatches > 0)
- {
- int matchNum = (int) Math.floor(Math.random() * numMatches);
- server = "" + match.charAt(matchNum);
- }
- final String result = matcher.group(1) + (server==null?"":server) + matcher.group(3);
- return result;
- }
-
- /**
- * @return semicolon-separated list of all fields
- */
- public String getConfigString()
- {
- return "o:" + getName() + ";" + getSiteStrings() + getMaxZoomLevel();
- }
-}
projects / GpsPrune.git / blobdiff