/** ** Main entery point for debugging/testing */ public static void main(String argv[]) { RTConfig.setCommandLineArgs(argv); Print.setAllOutputToStdout(true); Print.setEncoding(ENCODING_UTF8); String accountID = RTConfig.getString(ARG_ACCOUNT, "demo"); GoogleGeocodeV2 gn = new GoogleGeocodeV2("google", null, null); /* reverse geocode */ if (RTConfig.hasProperty(ARG_REVGEOCODE)) { GeoPoint gp = new GeoPoint(RTConfig.getString(ARG_REVGEOCODE, null)); if (!gp.isValid()) { Print.logInfo("Invalid GeoPoint specified"); System.exit(1); } Print.logInfo("Reverse-Geocoding GeoPoint: " + gp); Print.sysPrintln( "RevGeocode = " + gn.getReverseGeocode(gp, null /*localeStr*/, false /*cache*/)); // Note: Even though the values are printed in UTF-8 character encoding, the // characters may not appear to be property displayed if the console display // does not support UTF-8. System.exit(0); } /* no options */ Print.sysPrintln("No options specified"); System.exit(1); }
// http://code.google.com/apis/maps/documentation/geocoding/index.html public GeoPoint getGeocode(String address, String country) { /* URL */ String url = this.getGeoPointGeocodeURL(address, country); Print.logDebug("Google GC URL: " + url); /* create XML document */ Document xmlDoc = GetXMLDocument(url, this.getGeocodeTimeout()); if (xmlDoc == null) { return null; } /* vars */ String errCode = null; GeoPoint geoPoint = null; /* parse "xml" */ Element kml = xmlDoc.getDocumentElement(); if (kml.getTagName().equalsIgnoreCase(TAG_kml)) { NodeList ResponseList = XMLTools.getChildElements(kml, TAG_Response); for (int g = 0; (g < ResponseList.getLength()); g++) { Element response = (Element) ResponseList.item(g); NodeList responseNodes = response.getChildNodes(); for (int n = 0; n < responseNodes.getLength(); n++) { Node responseNode = responseNodes.item(n); if (!(responseNode instanceof Element)) { continue; } Element responseElem = (Element) responseNode; String responseNodeName = responseElem.getNodeName(); if (responseNodeName.equalsIgnoreCase(TAG_name)) { // <name>1600 Amphitheatre Parkway, Mountain View, CA</name> } else if (responseNodeName.equalsIgnoreCase(TAG_Status)) { // <Status> ... </Status> NodeList statusNodes = responseElem.getChildNodes(); for (int st = 0; st < statusNodes.getLength(); st++) { Node statusNode = statusNodes.item(st); if (!(statusNode instanceof Element)) { continue; } Element statusElem = (Element) statusNode; String statusNodeName = statusElem.getNodeName(); if (statusNodeName.equalsIgnoreCase(TAG_code)) { errCode = StringTools.trim(GoogleGeocodeV2.GetNodeText(statusElem)); // expect "200" break; // we only care about the 'code' } } } else if (responseNodeName.equalsIgnoreCase(TAG_Placemark)) { // <Placemark> ... </Placemark> String id = responseElem.getAttribute(ATTR_id); if ((id != null) && id.equals("p1")) { NodeList placemarkNodes = responseElem.getChildNodes(); for (int pm = 0; (geoPoint == null) && (pm < placemarkNodes.getLength()); pm++) { Node placemarkNode = placemarkNodes.item(pm); if (!(placemarkNode instanceof Element)) { continue; } Element placemarkElem = (Element) placemarkNode; String placemarkNodeName = placemarkElem.getNodeName(); if (placemarkNodeName.equalsIgnoreCase(TAG_Point)) { NodeList pointNodes = placemarkElem.getChildNodes(); for (int ptn = 0; (geoPoint == null) && (ptn < pointNodes.getLength()); ptn++) { Node pointNode = pointNodes.item(ptn); if (!(pointNode instanceof Element)) { continue; } Element pointElem = (Element) pointNode; String pointNodeName = pointElem.getNodeName(); if (pointNodeName.equalsIgnoreCase(TAG_coordinates)) { String ll[] = StringTools.split(GoogleGeocodeV2.GetNodeText(pointElem), ','); if (ll.length >= 2) { double lon = StringTools.parseDouble(ll[0], 0.0); // longitude is first double lat = StringTools.parseDouble(ll[1], 0.0); if (GeoPoint.isValid(lat, lon)) { geoPoint = new GeoPoint(lat, lon); break; // we only care about the 'GeoPoint' } } } } } } } else { // Print.logInfo("Skipping Placemark ID = %s", id); } } } } } /* create address */ if (geoPoint != null) { // GeoPoint found return geoPoint; } /* check for Google reverse-geocode limit exceeded */ if ((errCode != null) && errCode.equals("620")) { Print.logError("!!!! Google Reverse-Geocode Limit Exceeded [Error 620] !!!!"); } /* no reverse-geocode available */ return null; }
/* return reverse-geocode using nearest address */ public ReverseGeocode getAddressReverseGeocode(GeoPoint gp, String localeStr, boolean cache) { /* check for failover mode */ if (this.isReverseGeocodeFailoverMode()) { ReverseGeocodeProvider frgp = this.getFailoverReverseGeocodeProvider(); return frgp.getReverseGeocode(gp, localeStr, cache); } /* URL */ String url = this.getAddressReverseGeocodeURL(gp, localeStr); Print.logDebug("Google RG URL: " + url); // byte xmlBytes[] = HTMLTools.readPage(url); /* create XML document */ Document xmlDoc = GetXMLDocument(url, this.getReverseGeocodeTimeout()); if (xmlDoc == null) { return null; } /* vars */ String errCode = null; String address = null; /* parse "xml" */ Element kml = xmlDoc.getDocumentElement(); if (kml.getTagName().equalsIgnoreCase(TAG_kml)) { NodeList ResponseList = XMLTools.getChildElements(kml, TAG_Response); for (int g = 0; (g < ResponseList.getLength()); g++) { Element response = (Element) ResponseList.item(g); NodeList responseNodes = response.getChildNodes(); for (int n = 0; n < responseNodes.getLength(); n++) { Node responseNode = responseNodes.item(n); if (!(responseNode instanceof Element)) { continue; } Element responseElem = (Element) responseNode; String responseNodeName = responseElem.getNodeName(); if (responseNodeName.equalsIgnoreCase(TAG_name)) { // <name>40.479581,-117.773438</name> } else if (responseNodeName.equalsIgnoreCase(TAG_Status)) { // <Status> ... </Status> NodeList statusNodes = responseElem.getChildNodes(); for (int st = 0; st < statusNodes.getLength(); st++) { Node statusNode = statusNodes.item(st); if (!(statusNode instanceof Element)) { continue; } Element statusElem = (Element) statusNode; String statusNodeName = statusElem.getNodeName(); if (statusNodeName.equalsIgnoreCase(TAG_code)) { errCode = StringTools.trim(GoogleGeocodeV2.GetNodeText(statusElem)); // expect "200" break; // we only care about the 'code' } } } else if (responseNodeName.equalsIgnoreCase(TAG_Placemark)) { // <Placemark> ... </Placemark> String id = responseElem.getAttribute(ATTR_id); if ((id != null) && id.equals("p1")) { NodeList placemarkNodes = responseElem.getChildNodes(); for (int pm = 0; pm < placemarkNodes.getLength(); pm++) { Node placemarkNode = placemarkNodes.item(pm); if (!(placemarkNode instanceof Element)) { continue; } Element placemarkElem = (Element) placemarkNode; String placemarkNodeName = placemarkElem.getNodeName(); if (placemarkNodeName.equalsIgnoreCase(TAG_address)) { address = GoogleGeocodeV2.GetNodeText(placemarkElem); break; // we only care about the 'address' } } } else { // Print.logInfo("Skipping Placemark ID = %s", id); } } } } } /* create address */ if (FAILOVER_DEBUG) { errCode = "620"; } else if (!StringTools.isBlank(address)) { // address found ReverseGeocode rg = new ReverseGeocode(); rg.setFullAddress(address); return rg; } /* check for Google reverse-geocode limit exceeded */ if ((errCode != null) && errCode.equals("620")) { Print.logError("!!!! Google Reverse-Geocode Limit Exceeded [Error 620] !!!!"); if (this.hasFailoverReverseGeocodeProvider()) { this.startReverseGeocodeFailoverMode(); ReverseGeocodeProvider frgp = this.getFailoverReverseGeocodeProvider(); Print.logWarn("Failing over to '" + frgp.getName() + "'"); return frgp.getReverseGeocode(gp, localeStr, cache); } } /* no reverse-geocode available */ return null; }