// 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;
}
/**
* ** Returns a ReverseGeocode instance containing address information ** @param gp The GeoPoint
* ** @return The ReverseGeocode instance
*/
private ReverseGeocode getAddressReverseGeocode(GeoPoint gp, String localeStr) {
/* URL */
String url = this.getAddressReverseGeocodeURL(gp);
Print.logInfo("Address URL: " + url);
/* create XML document */
Document xmlDoc = GetXMLDocument(url);
if (xmlDoc == null) {
return null;
}
/* create ReverseGeocode response */
Element reversegeocode = xmlDoc.getDocumentElement();
if (!reversegeocode.getTagName().equalsIgnoreCase(TAG_reversegeocode)) {
return null;
}
/* init */
String address_val = null; // null address
String house_val = null; // house number
String road_val = null; // street name
String city_val = null; // city name
String county_val = null; // county name
String state_val = null; // state/province
String postcode_val = null; // postal code
String country_name_val = null; // country name
String country_code_val = null; // country code
// full address
NodeList resultList = XMLTools.getChildElements(reversegeocode, TAG_result);
for (int r = 0; r < resultList.getLength(); r++) {
Element result = (Element) resultList.item(r);
// String osmType = XMLTools.getAttribute(result, ATTR_osm_type, null, false);
address_val = XMLTools.getNodeText(result, " ", false);
break; // only the first element
}
// address components
NodeList addresspartsList = XMLTools.getChildElements(reversegeocode, TAG_addressparts);
for (int a = 0; (a < addresspartsList.getLength()); a++) {
Element addressparts = (Element) addresspartsList.item(a);
NodeList addresspartsChildren = addressparts.getChildNodes();
for (int ac = 0; ac < addresspartsChildren.getLength(); ac++) {
Node child = addresspartsChildren.item(ac);
if (!(child instanceof Element)) {
continue;
}
Element elem = (Element) child;
String elemName = elem.getNodeName();
if (elemName.equalsIgnoreCase(TAG_house)) {
house_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_tram)) {
// ignore
} else if (elemName.equalsIgnoreCase(TAG_road)) {
road_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_residential)) {
// ignore
} else if (elemName.equalsIgnoreCase(TAG_village)) {
// ignore
} else if (elemName.equalsIgnoreCase(TAG_town)) {
if (StringTools.isBlank(city_val)) {
city_val = XMLTools.getNodeText(elem, " ", false);
}
} else if (elemName.equalsIgnoreCase(TAG_city)) {
city_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_county)) {
county_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_postcode)) {
postcode_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_state)) {
state_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_country)) {
country_name_val = XMLTools.getNodeText(elem, " ", false);
} else if (elemName.equalsIgnoreCase(TAG_country_code)) {
country_code_val = StringTools.trim(XMLTools.getNodeText(elem, " ", false)).toUpperCase();
} else {
// elemName unrecognized
}
}
break; // only the first element
}
/* populate ReverseGeocode instance */
ReverseGeocode rg = new ReverseGeocode();
StringBuffer addr = new StringBuffer();
// house number /road
if (!StringTools.isBlank(house_val)) {
addr.append(house_val);
if (!StringTools.isBlank(road_val)) {
addr.append(" ");
addr.append(road_val);
rg.setStreetAddress(house_val + " " + road_val);
} else {
rg.setStreetAddress(house_val);
}
} else if (!StringTools.isBlank(road_val)) {
addr.append(road_val);
rg.setStreetAddress(road_val);
}
// city/county
if (!StringTools.isBlank(city_val)) {
if (addr.length() > 0) {
addr.append(", ");
}
addr.append(city_val);
rg.setCity(city_val);
}
if (!StringTools.isBlank(county_val)) {
if (StringTools.isBlank(city_val)) {
// "city" not provided, at least include the "county"
if (addr.length() > 0) {
addr.append(", ");
}
addr.append("[").append(county_val).append("]");
}
// rg.setCounty(county_val);
}
// state/province
if (!StringTools.isBlank(state_val)) {
if (addr.length() > 0) {
addr.append(", ");
}
addr.append(state_val);
rg.setStateProvince(state_val);
if (!StringTools.isBlank(postcode_val)) {
addr.append(" ").append(postcode_val);
rg.setPostalCode(postcode_val);
}
} else {
if (!StringTools.isBlank(postcode_val)) {
if (addr.length() > 0) {
addr.append(", ");
}
addr.append(postcode_val);
rg.setPostalCode(postcode_val);
}
}
// country
if (!StringTools.isBlank(country_code_val)) {
if (country_code_val.equalsIgnoreCase("US")) {
// if (addr.length() > 0) { addr.append(", "); }
// addr.append("USA");
} else if (!StringTools.isBlank(country_name_val)) {
if (addr.length() > 0) {
addr.append(", ");
}
addr.append(country_name_val);
} else {
if (addr.length() > 0) {
addr.append(", ");
}
addr.append(country_code_val);
}
rg.setCountryCode(country_code_val);
}
// full address
rg.setFullAddress(addr.toString());
return rg;
}
/* 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;
}