uk.ac.cam.acr31.android.geomessaging.servertools
Class ServerHelper

java.lang.Object
  uk.ac.cam.acr31.android.geomessaging.servertools.ServerHelper

public class ServerHelper
extends java.lang.Object

A helper class of static methods for interacting with the GeoMessagingServer

Author:

acr31

Nested Class Summary

private static class

ServerHelper.MyXMLHandler Helper class to parse the XML response from the server

Field Summary

private static java.lang.String	URL_MESSAGE_LIST URL to use to query for the list of nearby messages
private static java.lang.String	URL_PICTURE_FOLDER The URL to prefix onto image names to download them from the web
private static java.lang.String	URL_UPLOAD URL to use for uploading new messages

Constructor Summary

ServerHelper()

Method Summary

static java.util.ArrayList<Message>	getMessages(double lat, double lng, double proxMiles) Return a list of all the messages which have been posted at the given latitude and longitude within the chosen proximity
private static java.lang.String	getResponseString(java.lang.String urlAddress, org.apache.http.entity.mime.MultipartEntity form) Make a POST request to the URL using the form given and return a String for the response body
private static java.io.InputStream	obtainInputStream(java.lang.String urlAddress, org.apache.http.entity.mime.MultipartEntity form) Make a POST request to the URL using the form given and return an InputStream for the response body
static boolean	sendMessage(java.lang.String message, java.lang.String pictureFilename, double lat, double lng) Submit this message to the server.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

URL_UPLOAD

private static final java.lang.String URL_UPLOAD

URL to use for uploading new messages

See Also:

Constant Field Values

URL_MESSAGE_LIST

private static final java.lang.String URL_MESSAGE_LIST

URL to use to query for the list of nearby messages

See Also:

Constant Field Values

URL_PICTURE_FOLDER

private static final java.lang.String URL_PICTURE_FOLDER

The URL to prefix onto image names to download them from the web

See Also:

Constant Field Values

Constructor Detail

ServerHelper

public ServerHelper()

Method Detail

obtainInputStream

private static java.io.InputStream obtainInputStream(java.lang.String urlAddress,
                                                     org.apache.http.entity.mime.MultipartEntity form)
                                              throws org.apache.http.client.ClientProtocolException,
                                                     java.io.IOException

Make a POST request to the URL using the form given and return an InputStream for the response body

Throws:

org.apache.http.client.ClientProtocolException

java.io.IOException

getResponseString

private static java.lang.String getResponseString(java.lang.String urlAddress,
                                                  org.apache.http.entity.mime.MultipartEntity form)
                                           throws org.apache.http.client.ClientProtocolException,
                                                  java.io.IOException

Make a POST request to the URL using the form given and return a String for the response body

Throws:

org.apache.http.client.ClientProtocolException

java.io.IOException

getMessages

public static java.util.ArrayList<Message> getMessages(double lat,
                                                       double lng,
                                                       double proxMiles)

Return a list of all the messages which have been posted at the given latitude and longitude within the chosen proximity

sendMessage

public static boolean sendMessage(java.lang.String message,
                                  java.lang.String pictureFilename,
                                  double lat,
                                  double lng)

Submit this message to the server.

Parameters:

message - is the text of the message to submit

pictureFileName - is the filename of a file on the phone's storage containing the image to include

lat - is the latitude of the current location

lng - is the longitude of the current location