// callRestfulApi - Calls restful API and returns results as a string
public String callRestfulApi(
String addr, HttpServletRequest request, HttpServletResponse response) {
if (localCookie) CookieHandler.setDefault(cm);
try {
ByteArrayOutputStream output = new ByteArrayOutputStream();
URL url = new URL(API_ROOT + addr);
URLConnection urlConnection = url.openConnection();
String cookieVal = getBrowserInfiniteCookie(request);
if (cookieVal != null) {
urlConnection.addRequestProperty("Cookie", "infinitecookie=" + cookieVal);
urlConnection.setDoInput(true);
urlConnection.setDoOutput(true);
urlConnection.setRequestProperty("Accept-Charset", "UTF-8");
}
IOUtils.copy(urlConnection.getInputStream(), output);
String newCookie = getConnectionInfiniteCookie(urlConnection);
if (newCookie != null && response != null) {
setBrowserInfiniteCookie(response, newCookie, request.getServerPort());
}
return output.toString();
} catch (IOException e) {
System.out.println(e.getMessage());
return null;
}
} // TESTED
public InputStream getResourceAsStream(String path) {
URL url = getResource(path);
if (url == null) return null;
try {
return url.openStream();
} catch (IOException ioe) {
throw new RuntimeException("can't getResourceAsStream [" + path + "]", ioe);
}
}
// Strip off everything unneeded
private String getBaseUrl(String pUrl, String pServletPath) {
String sUrl;
try {
URL url = new URL(pUrl);
String host = getIpIfPossible(url.getHost());
sUrl = new URL(url.getProtocol(), host, url.getPort(), pServletPath).toExternalForm();
} catch (MalformedURLException exp) {
sUrl = plainReplacement(pUrl, pServletPath);
}
return sUrl;
}
String srvUrlStem(String host) {
if (host == null) {
return null;
}
StringBuilder sb = new StringBuilder();
sb.append(reqURL.getProtocol());
sb.append("://");
sb.append(host);
sb.append(':');
sb.append(reqURL.getPort());
return sb.toString();
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
int i, j;
String amount = req.getParameter("amount");
String from = req.getParameter("from");
String to = req.getParameter("to");
String ch = req.getParameter("choice");
String answer, answer1, answer2, answer3;
if ("INFO".equals(ch)) {
Redirect_info newurl = (Redirect_info) getServletContext().getAttribute("redirect");
res.sendRedirect(newurl.getUrl());
} else {
out.println("<html>");
out.println("<title>Currency Converter</title>");
String addr = "http://www.google.com/ig/calculator?hl=en&q=" + amount + from + "=?" + to;
URL convert = new URL(addr);
BufferedReader in = new BufferedReader(new InputStreamReader(convert.openStream()));
answer = in.readLine();
answer = new String(answer.getBytes("ISO-8859-1"), "ISO-8859-7");
from = new String(from.getBytes("ISO-8859-1"), "ISO-8859-7");
to = new String(to.getBytes("ISO-8859-1"), "ISO-8859-7");
amount = new String(amount.getBytes("ISO-8859-1"), "ISO-8859-7");
in.close();
i = answer.indexOf('"');
answer = answer.substring(i + 1);
i = answer.indexOf('"');
answer = answer.substring(i + 1);
i = answer.indexOf('"');
answer = answer.substring(i + 1);
i = answer.indexOf('"');
answer = answer.substring(0, i);
out.println("<p ALIGN=CENTER>" + amount + " " + from + " == " + answer + "(" + to + ")</p>");
out.println("</body>");
out.println("</html>");
}
}
String srvURL(PeerIdentity peer, ServletDescr d, String params) {
return srvURLFromStem(peer.getUiUrlStem(reqURL.getPort()), d, params);
}
String getRequestHost() {
return reqURL.getHost();
}
