// Stores the fields returned from the last getRecord or getField action
// Probably should be synchronized!
public synchronized String getLastFieldValue(String fieldName) {
if (fieldsTable == null) {
return null;
}
return (String) fieldsTable.get(fieldName);
}
// This uses the key to get the entire record from the web page
// For now the fields that compose the record will be hardcoded
// but these fields need to be checked with the advertisement
// in future releases. It then uses the parameter passed to it
// to decide which fields to return
// Also put's the field values in a Hashtable that can be later accessed
private synchronized String getRecordFields(String key, String param) {
fieldsTable = null;
String city = new String(key);
displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " + "city = " + city);
// Add the URL extension corresponding to the city.
StringBuffer sbuf = new StringBuffer();
for (int i = 0; i < city.length(); i++) {
char ch = city.charAt(i);
if (ch != ' ' && ch != '\t' && ch != '\n') sbuf.append(ch);
}
String formURLString = siteURLString + new String(sbuf) + ".html";
URL infoURL = null;
try {
infoURL = new URL(formURLString);
} catch (MalformedURLException e) {
displayMessage(
"ERROR",
"WCNForecastWeatherQueryFn::getRecordFields " + "Malformed URL " + formURLString);
return null;
}
// displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " +
// "Got URL for site: " + formURLString);
Object content = null;
try {
content = infoURL.getContent();
} catch (IOException e) {
displayMessage(
"ERROR",
"WCNForecastWeatherQueryFn::getRecordFields "
+ "Can't load content from "
+ formURLString);
return null;
}
InputStreamReader input = new InputStreamReader((InputStream) content);
BufferedReader reader = new BufferedReader(input);
sbuf.setLength(0);
boolean stillReading = true;
char[] cbuf = new char[100000];
int ccount = 0;
long startTime = System.currentTimeMillis();
while (stillReading) {
try {
ccount = reader.read(cbuf);
} catch (IOException e) {
displayMessage(
"ERROR",
"WCNForecastWeatherQueryFn::getRecordFields "
+ "IO error getting content from "
+ formURLString);
return null;
}
if (ccount > 0) sbuf.append(cbuf, 0, ccount);
if (ccount < 0) stillReading = false;
}
// displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " +
// "Time to read content: " + ((System.currentTimeMillis() - startTime) / 1000.0) +
// " seconds");
String page = sbuf.toString();
StringBuffer day = new StringBuffer();
StringBuffer condition = new StringBuffer();
int pos = page.indexOf("<!-- forecast include");
int delimit;
pos = page.indexOf("<TR>", pos);
pos = page.indexOf("<TR>", pos + 1);
pos = page.indexOf("<TR>", pos + 1);
for (int n = 0; n < 10; n++) {
pos = page.indexOf("<TR>", pos + 1);
int daypos = page.indexOf("<BR>", pos) + 4;
delimit = page.indexOf("</B>", daypos);
day.append("(" + page.substring(daypos, delimit) + (n == 9 ? ")" : ") "));
pos = page.indexOf("<FONT", daypos);
int condpos = page.indexOf(">", pos) + 1;
delimit = page.indexOf("</FONT>", condpos);
condition.append("(" + page.substring(condpos, delimit) + (n == 9 ? ")" : ") "));
}
// Get the parser corresponding to the initial URL
/*
Parser infoParser = null;
try {
infoParser = new Parser(infoURL,true,display);
} catch (Exception ex) {
infoParser = null;
}
if (infoParser == null) {
displayMessage("ERROR", "WCNForecastWeatherQueryFn::getRecordFields " +
"Cannot initialize parser for page " + formURLString );
return null ;
}
if (FILE_WRITE) {
displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " +
"Site URL: " + formURLString +
" Calling writeContent()." + FILE_WRITE_EXT_NUM);
writeContent(infoParser.getContent());
}
displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " +
"ready to return record fields: " + param);
displayMessage("DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " +
"city is: " + key);
String ct = null;
StringBuffer day = new StringBuffer();
StringBuffer condition = new StringBuffer();
String tag = null;
while ((tag = infoParser.nextTag("NONE")) != null) {
ct = infoParser.getContentBetween ();
if ((ct == null) || (ct.length() == 0)) continue;
ct = ct.replace('\n', ' ');
ct = ct.replace('\r', ' ');
if (ct.toLowerCase().indexOf("sunrise:") != -1) {
tag = infoParser.nextTag("NONE");
while (tag != null && !tag.equalsIgnoreCase("table"))
tag = infoParser.nextTag("NONE");
while (tag != null && !tag.equalsIgnoreCase("span"))
tag = infoParser.nextTag("NONE");
for ( int n = 0; n < 5; n++ ) {
if (tag != null) {
infoParser.removeContentBetween();
tag = infoParser.nextTag("NONE");
while (tag != null && !tag.equalsIgnoreCase("/span"))
tag = infoParser.nextTag("NONE");
if (tag != null) {
day.append(infoParser.getContentBetween() + (n == 4 ? "" : " "));
tag = infoParser.nextTag("IMG");
while (tag != null && !tag.equalsIgnoreCase("img"))
tag = infoParser.nextTag("IMG");
if (tag != null)
condition.append(infoParser.getParameterValue("ALT") + (n == 4 ? "" : " "));
}
}
tag = infoParser.nextTag("NONE");
while (tag != null && !tag.equalsIgnoreCase("img"))
tag = infoParser.nextTag("NONE");
while (tag != null && !tag.equalsIgnoreCase("span"))
tag = infoParser.nextTag("NONE");
System.out.println("Content after condition = " + infoParser.getContentBetween());
}
}
infoParser.removeContentBetween();
}
*/
// If we couldn't get at least a temperature from the page, it must
// have been an invalid URL, ie.e, a city not in CNN database or
// incorrectly spelled or designated.
if (day == null) {
displayMessage(
"ERROR",
"WCNForecastWeatherQueryFn::getRecordFields "
+ "URL "
+ formURLString
+ " is not a valid URL. "
+ "The \"CityCountry\" or \"CityState\" key may be wrong.");
return null;
}
String weather =
WEATHER_PERF_STRING
+ " "
+ ":"
+ DAY_STRING
+ " ("
+ day.toString()
+ ") "
+ ":"
+ CONDITION_STRING
+ " ("
+ condition.toString()
+ ")";
if (param.equalsIgnoreCase(ALL_FIELDS)) {
fieldsTable = new Hashtable();
if (key != null) {
fieldsTable.put(CITY_STRING, key);
}
if (day != null) {
fieldsTable.put(DAY_STRING, day);
}
if (condition != null) {
fieldsTable.put(CONDITION_STRING, condition);
}
if (formURLString != null) {
fieldsTable.put(WEATHER_URL_STRING, formURLString);
}
if (key == null) {
key = " ";
}
if (formURLString == null) {
formURLString = " ";
}
String reply =
"(reply :"
+ CITY_STRING
+ " ("
+ key
+ ") "
+ ":"
+ WEATHER_STRING
+ " ("
+ weather
+ ") "
+ ":"
+ WEATHER_URL_STRING
+ " ("
+ formURLString
+ "))";
displayMessage(
"DEBUG", "WCNForecastWeatherQueryFn::getRecordFields " + "Weather is: " + reply);
return reply;
} else if (param.equalsIgnoreCase(CITY_STRING)) {
fieldsTable = new Hashtable();
fieldsTable.put(CITY_STRING, key);
return key;
} else if (param.equalsIgnoreCase(WEATHER_STRING)) {
fieldsTable = new Hashtable();
fieldsTable.put(WEATHER_STRING, weather);
return weather;
} else if (param.equalsIgnoreCase(WEATHER_URL_STRING)) {
fieldsTable = new Hashtable();
fieldsTable.put(WEATHER_URL_STRING, formURLString);
return formURLString;
} else {
return null;
}
}