/** Get XHTML view */
private String getXHTMLView(PriorityQueue priority_locs) {
StringBuilder sbView =
new StringBuilder(
"<html xmlns=\"http://www.w3.org/1999/xhtml\"><body><div><h1>Look for the most convenient Store, according to your current position:</h1><p><ul>");
int n = priority_locs.size();
// Retrieve all the locations from the queue, the retrieved locations are sorted (closest
// Location is retrieved first)
for (int i = 0; i < n; ++i) {
Location loc = (Location) priority_locs.poll();
String name = loc.getName();
String distance = ((Double) loc.getDistance()).toString();
sbView.append("<li>" + name + ":    " + distance + " km</li>");
}
sbView.append("</ul></p></div></body></html>");
return sbView.toString();
}
/** Get XML view */
private InputStream getXMLViewAsInputStream(PriorityQueue priority_locs) throws Exception {
Document doc = XMLHelper.createDocument(null, "locations");
// Retrieve all the locations from the queue, the retrieved locations are sorted (closest
// Location is retrieved first)
int numberOfLocations =
priority_locs
.size(); // INFO: Please note that poll() will change the size, hence set it as fixed
// variable first!
for (int i = 0; i < numberOfLocations; ++i) {
Location loc = (Location) priority_locs.poll();
String name = loc.getName();
String distance = roundToOneDecimal(loc.getDistance());
// log.debug("Distance: " + loc.getDistance() + ", " + distance);
// sbView.append("<loc name=\"" + name + "\" distance=\"" + distance + "\" id=\"" +
// loc.getID() + "\" href=\"" + "TODO" + "\"/>");
Element locElem = doc.createElement("loc");
locElem.setAttribute("name", name);
locElem.setAttribute("distance", distance);
locElem.setAttribute("id", loc.getID());
// locElem.setAttribute("href", "TODO");
doc.getDocumentElement().appendChild(locElem);
}
return XMLHelper.getInputStream(doc, false, false, null);
}
/** @see org.wyona.yanel.impl.resources.BasicXMLResource#getContentXML(String) */
@Override
protected InputStream getContentXML(String viewId) throws Exception {
HttpServletRequest request = (HttpServletRequest) getEnvironment().getRequest();
String query = request.getQueryString();
if ((query == "" || query == null) && !(viewId == "json")) {
String view = first_view(request);
return new StringBufferInputStream(view);
} else {
String long_here = "";
String lat_here = "";
long_here = request.getParameter("long");
lat_here = request.getParameter("lat");
// long_here = "13.408056";
// lat_here = "52.518611";
log.debug("Longitude: " + long_here);
log.debug("Latitude: " + lat_here);
if (long_here == "" || lat_here == "" || long_here == null || lat_here == null) {
StringBuilder sbView_disabled =
new StringBuilder(
"<html xmlns=\"http://www.w3.org/1999/xhtml\"><body><div><h1>Look for the most convenient Store, according to your current position:</h1><p><ul>");
sbView_disabled.append(
"<li>The geolocation of your firefox is disabled. We're sorry but we can't provide you with the closest location.</li></ul></p></div></body></html>");
return new StringBufferInputStream(sbView_disabled.toString());
} else {
Location users_loc =
new Location(Double.parseDouble(lat_here), Double.parseDouble(long_here));
Document xmlDoc;
String xmlPath = getResourceConfigProperty("xml-path");
if (xmlPath == null || xmlPath == "") {
File xmlFile =
org.wyona.commons.io.FileUtil.file(
rtd.getConfigFile().getParentFile().getAbsolutePath(),
"xml" + File.separator + "locations.xml");
xmlDoc = XMLHelper.readDocument(new FileInputStream(xmlFile));
log.warn(
"No custom/specific locations file specified, hence default file is read: "
+ rtd.getConfigFile().getParentFile().getAbsolutePath()
+ "xml"
+ File.separator
+ "locations.xml");
} else {
xmlDoc =
XMLHelper.readDocument(getRealm().getRepository().getNode(xmlPath).getInputStream());
}
Element element = xmlDoc.getDocumentElement();
Element[] childElements = XMLHelper.getElements(element, "node", "", "");
// Get all the locations specified in the xmlFile
// fill ArrayLists with the Locations (including Name)
ArrayList<Location> locations = new ArrayList();
int i;
for (i = 0; i < childElements.length; ++i) {
String name = "";
String longitude = "";
String latitude = "";
NodeList text_Node_list;
org.w3c.dom.Node final_text_node;
Element current_text_element = null;
Element current_element = childElements[i];
// INFO: Get the name
Element[] name_elements = XMLHelper.getChildElements(current_element, "name", null);
String contentLanguage = getContentLanguage();
log.debug(
"Number of 'name' elements: "
+ name_elements.length
+ " (Content language : "
+ contentLanguage
+ ")");
if (name_elements.length >= 1) {
try {
name = getElementValue(name_elements[0]);
if (name_elements.length > 1) {
for (int j = 0; j < name_elements.length; j++) {
String langAttr = name_elements[j].getAttribute("xml:lang");
log.debug("Language of name element: " + langAttr);
if (langAttr != null && langAttr.equals(contentLanguage)) {
name = getElementValue(name_elements[j]);
break;
}
}
} else {
log.info("Name '" + name + "' seems to exist only in one language.");
}
} catch (Exception e) {
log.error(e.getMessage());
return new StringBufferInputStream(getErrorMessageAsXHTML(e).toString());
}
} else {
log.error("Location does not seem to have name!");
StringBuilder sbView_error2 =
new StringBuilder(
"<html xmlns=\"http://www.w3.org/1999/xhtml\"><body><div><h1>Look for the most convenient Store, according to your current position:</h1><p><ul>");
sbView_error2.append(
"<li>We're sorry an error occured.</li></ul></p></div></body></html>");
return new StringBufferInputStream(sbView_error2.toString());
}
// INFO: Get the latitude
Element[] text_elements = XMLHelper.getElements(current_element, "latitude", "", "");
current_text_element = text_elements[0];
text_Node_list = current_text_element.getChildNodes();
final_text_node = text_Node_list.item(0);
// log.warn("How many names elements:" +
// java.lang.Integer.toString((Integer)(text_Node_list.getLength())));
latitude = final_text_node.getNodeValue();
// Get the longitude
text_elements = XMLHelper.getElements(current_element, "longitude", "", "");
current_text_element = text_elements[0];
text_Node_list = current_text_element.getChildNodes();
final_text_node = text_Node_list.item(0);
// log.warn("How many names elements:" +
// java.lang.Integer.toString((Integer)(text_Node_list.getLength())));
longitude = final_text_node.getNodeValue();
// log.warn("This is the "+ ((Integer)i).toString() +"location with: " + longitude +
// latitude+ "long, lat");
// Collect all the predifined Location, we need to compare to the User's Location
locations.add(
new Location(
Double.parseDouble(latitude),
Double.parseDouble(longitude),
name,
current_element.getAttribute("id")));
}
int n = locations.toArray().length;
PriorityQueue<Location> priority_locs = new PriorityQueue();
// Calculate Distance for all Locations;
for (i = 0; i < n; i++) {
Location current_location = locations.get(i);
double dist = GeoUtil.getDistance(users_loc, current_location);
// Set distance in order to copmare it accordingly (Comparision of a Location-Class
// Instance is difined by their its set distance)
current_location.setDistance(dist);
priority_locs.add(current_location);
}
if (viewId.equals("json")) {
log.warn("DEBUG: Get JSON view...");
return getXMLViewAsInputStream(priority_locs);
// return new StringBufferInputStream(getXMLView(priority_locs));
} else {
log.warn("DEBUG: Get XML/XHTML view...");
return new StringBufferInputStream(getXHTMLView(priority_locs));
}
}
}
}
