Supporting spaces in adressing

[sarni]

make a small change to the GML Handler
(https://gsn.svn.sourceforge.net/svnroot/gsn/trunk/src/gsn/http/GMLHandler.java)
In order to prevent future sensor misconfigurations where people can put spaces in the
content of the latitude and longitude elements,

suggested solution by user :

to the code reading these values. You can do for example:

for (KeyValue df : sensorConfig.getAddressing()) {
if
(StringEscapeUtils.escapeXml(df.getKey().toString().toLowerCase()).contentEquals("latitude"))
lat = (new
String(StringEscapeUtils.escapeXml(df.getValue().toString()))).trim();
if
(StringEscapeUtils.escapeXml(df.getKey().toString().toLowerCase()).contentEquals("longitude"))
lon = (new
String(StringEscapeUtils.escapeXml(df.getValue().toString()))).trim();
}

or whatever you think is more appropriate to remove the leading and
trailing spaces from the values of those coordinates.

And because I can also assume that people might put non-numeric
characters inside the coordinates by mistake (for example the letter
"o" instead of "0"), you can do this also:

for (KeyValue df : sensorConfig.getAddressing()) {
if
(StringEscapeUtils.escapeXml(df.getKey().toString().toLowerCase()).contentEquals("latitude"))
lat = (new
String(StringEscapeUtils.escapeXml(df.getValue().toString()))).trim();
if (lat != null && (!(lat.matches("-?\d+(.\d+)?"))))
lat = null;
if
(StringEscapeUtils.escapeXml(df.getKey().toString().toLowerCase()).contentEquals("longitude"))
lon = (new
String(StringEscapeUtils.escapeXml(df.getValue().toString()))).trim();
if (lon != null && (!(lon.matches("-?\d+(.\d+)?"))))
lon = null;
}

Please check the logic, because I didn't compile nor tested the above
code. I have used the pattern "-?\d+(.\d+)?" because latitude and
longitude can also be negative in other parts of the world outside
Europe, hence the optional "-".