/**
* Opens an {@link HttpURLConnection} with parameters.
*
* @param request
* @param listener
* @return an open connection
* @throws IOException
*/
private HttpURLConnection openConnection(WXRequest request, OnHttpListener listener)
throws IOException {
URL url = new URL(request.url);
HttpURLConnection connection = createConnection(url);
connection.setConnectTimeout(request.timeoutMs);
connection.setReadTimeout(request.timeoutMs);
connection.setUseCaches(false);
connection.setDoInput(true);
if (request.paramMap != null) {
Set<String> keySets = request.paramMap.keySet();
for (String key : keySets) {
connection.addRequestProperty(key, request.paramMap.get(key));
}
}
if ("POST".equals(request.method)) {
connection.setRequestMethod("POST");
if (request.body != null) {
if (listener != null) {
listener.onHttpUploadProgress(0);
}
connection.setDoOutput(true);
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
// TODO big stream will cause OOM; Progress callback is meaningless
out.write(request.body.getBytes());
out.close();
if (listener != null) {
listener.onHttpUploadProgress(100);
}
}
} else if (!TextUtils.isEmpty(request.method)) {
connection.setRequestMethod(request.method);
} else {
connection.setRequestMethod("GET");
}
return connection;
}
private String readInputStream(InputStream inputStream, OnHttpListener listener)
throws IOException {
if (inputStream == null) {
return null;
}
StringBuilder builder = new StringBuilder();
BufferedReader localBufferedReader = new BufferedReader(new InputStreamReader(inputStream));
char[] data = new char[2048];
int len;
while ((len = localBufferedReader.read(data)) != -1) {
builder.append(data, 0, len);
if (listener != null) {
listener.onHttpResponseProgress(builder.length());
}
}
localBufferedReader.close();
return builder.toString();
}
@Override
public void sendRequest(final WXRequest request, final OnHttpListener listener) {
if (listener != null) {
listener.onHttpStart();
}
execute(
new Runnable() {
@Override
public void run() {
WXResponse response = new WXResponse();
try {
HttpURLConnection connection = openConnection(request, listener);
Map<String, List<String>> headers = connection.getHeaderFields();
int responseCode = connection.getResponseCode();
if (listener != null) {
listener.onHeadersReceived(responseCode, headers);
}
response.statusCode = String.valueOf(responseCode);
if (responseCode >= 200 && responseCode <= 299) {
response.originalData =
readInputStreamAsBytes(connection.getInputStream(), listener);
} else {
response.errorMsg = readInputStream(connection.getErrorStream(), listener);
}
if (listener != null) {
listener.onHttpFinish(response);
}
} catch (IOException e) {
e.printStackTrace();
response.statusCode = "-1";
response.errorCode = "-1";
response.errorMsg = e.getMessage();
if (listener != null) {
listener.onHttpFinish(response);
}
}
}
});
}
private byte[] readInputStreamAsBytes(InputStream inputStream, OnHttpListener listener)
throws IOException {
if (inputStream == null) {
return null;
}
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
int nRead;
int readCount = 0;
byte[] data = new byte[2048];
while ((nRead = inputStream.read(data, 0, data.length)) != -1) {
buffer.write(data, 0, nRead);
readCount += nRead;
if (listener != null) {
listener.onHttpResponseProgress(readCount);
}
}
buffer.flush();
return buffer.toByteArray();
}