private String getResult(String URL, HashMap optionalParameters) {
StringBuilder sb = new StringBuilder();
sb.append(URL);
try {
Iterator iterator = optionalParameters.keySet().iterator();
int index = 0;
while (iterator.hasNext()) {
if (index == 0) {
sb.append("?");
} else {
sb.append("&");
}
String key = (String) iterator.next();
sb.append(key);
sb.append("=");
sb.append(URLEncoder.encode(optionalParameters.get(key).toString(), "UTF-8"));
index++;
}
URI uri = new URI(String.format(sb.toString()));
URL url = uri.toURL();
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization", "Bearer " + getAccessToken());
if (conn.getResponseCode() != 200) {
throw new RuntimeException(
"Failed : HTTP error code : "
+ conn.getResponseCode()
+ " - "
+ conn.getResponseMessage());
}
BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
String output;
sb = new StringBuilder();
while ((output = br.readLine()) != null) {
sb.append(output);
}
conn.disconnect();
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (URISyntaxException e) {
e.printStackTrace();
return null;
}
return sb.toString();
}
private String postResult(String URL) {
StringBuffer sb = new StringBuffer();
try {
String finalUrl = "";
String[] parsedUrl = URL.split("\\?");
String params =
URLEncoder.encode(parsedUrl[1], "UTF-8").replace("%3D", "=").replace("%26", "&");
URL url = new URL(parsedUrl[0] + "?" + params);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization", "Bearer " + getAccessToken());
conn.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
wr.writeBytes(params);
wr.flush();
wr.close();
boolean redirect = false;
// normally, 3xx is redirect
int status = conn.getResponseCode();
if (status != HttpURLConnection.HTTP_OK) {
if (status == HttpURLConnection.HTTP_MOVED_TEMP
|| status == HttpURLConnection.HTTP_MOVED_PERM
|| status == HttpURLConnection.HTTP_SEE_OTHER) redirect = true;
}
if (redirect) {
// get redirect url from "location" header field
String newUrl = conn.getHeaderField("Location");
// open the new connnection again
conn = (HttpURLConnection) new URL(newUrl).openConnection();
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization", "Bearer " + getAccessToken());
}
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
sb.append(inputLine);
}
in.close();
} catch (Exception e) {
e.printStackTrace();
}
return sb.toString();
}
private String putResult(String URL) {
StringBuilder sb = new StringBuilder();
try {
String finalUrl = "";
if (URL.contains("?")) {
String[] parsedUrl = URL.split("\\?");
String params = URLEncoder.encode(parsedUrl[1], "UTF-8");
finalUrl = parsedUrl[0] + "?" + params;
} else {
finalUrl = URL;
}
URL url = new URL(finalUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("PUT");
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization", "Bearer " + getAccessToken());
if (conn.getResponseCode() != 200 | conn.getResponseCode() != 201) {
throw new RuntimeException(
"Failed : HTTP error code : "
+ conn.getResponseCode()
+ " - "
+ conn.getResponseMessage());
}
BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
String output;
sb = new StringBuilder();
while ((output = br.readLine()) != null) {
sb.append(output);
}
conn.disconnect();
} catch (IOException e) {
e.printStackTrace();
return null;
}
return sb.toString();
}