@SuppressWarnings("deprecation")
/* package */ static void setConnectionParametersForRequest(
HttpURLConnection connection, Request<?> request) throws IOException, AuthFailureError {
switch (request.getMethod()) {
case Method.DEPRECATED_GET_OR_POST:
// This is the deprecated way that needs to be handled for backwards compatibility.
// If the request's post body is null, then the assumption is that the request is
// GET. Otherwise, it is assumed that the request is a POST.
byte[] postBody = request.getPostBody();
if (postBody != null) {
// Prepare output. There is no need to set Content-Length explicitly,
// since this is handled by HttpURLConnection using the size of the prepared
// output stream.
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.addRequestProperty(HEADER_CONTENT_TYPE, request.getPostBodyContentType());
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.write(postBody);
out.close();
}
break;
case Method.GET:
// Not necessary to set the request method because connection defaults to GET but
// being explicit here.
connection.setRequestMethod("GET");
break;
case Method.DELETE:
connection.setRequestMethod("DELETE");
break;
case Method.POST:
connection.setRequestMethod("POST");
addBodyIfExists(connection, request);
break;
case Method.PUT:
connection.setRequestMethod("PUT");
addBodyIfExists(connection, request);
break;
case Method.HEAD:
connection.setRequestMethod("HEAD");
break;
case Method.OPTIONS:
connection.setRequestMethod("OPTIONS");
break;
case Method.TRACE:
connection.setRequestMethod("TRACE");
break;
case Method.PATCH:
connection.setRequestMethod("PATCH");
addBodyIfExists(connection, request);
break;
default:
throw new IllegalStateException("Unknown method type.");
}
}
static HttpUriRequest createMultiPartRequest(
Request<?> request, Map<String, String> additionalHeaders) throws AuthFailureError {
switch (request.getMethod()) {
case Method.DEPRECATED_GET_OR_POST:
{
// This is the deprecated way that needs to be handled for backwards compatibility.
// If the request's post body is null, then the assumption is that the request is
// GET. Otherwise, it is assumed that the request is a POST.
byte[] postBody = request.getBody();
if (postBody != null) {
HttpPost postRequest = new HttpPost(request.getUrl());
if (request.getBodyContentType() != null)
postRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType());
HttpEntity entity;
entity = new ByteArrayEntity(postBody);
postRequest.setEntity(entity);
return postRequest;
} else {
return new HttpGet(request.getUrl());
}
}
case Method.GET:
return new HttpGet(request.getUrl());
case Method.DELETE:
return new HttpDelete(request.getUrl());
case Method.POST:
{
HttpPost postRequest = new HttpPost(request.getUrl());
if (request.getBodyContentType() != null) {
postRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType());
}
setMultiPartBody(postRequest, request);
return postRequest;
}
case Method.PUT:
{
HttpPut putRequest = new HttpPut(request.getUrl());
if (request.getBodyContentType() != null)
putRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType());
setMultiPartBody(putRequest, request);
return putRequest;
}
// Added in source code of Volley libray.
case Method.PATCH:
{
HttpPatch patchRequest = new HttpPatch(request.getUrl());
if (request.getBodyContentType() != null)
patchRequest.addHeader(HEADER_CONTENT_TYPE, request.getBodyContentType());
return patchRequest;
}
default:
throw new IllegalStateException("Unknown request method.");
}
}
private static void dispatchToQueue(Request pRequest, Context pContext) {
if (!isNetworkConnected(pContext) && pRequest.getMethod() != Request.Method.GET) {
// non-GET request should not return cached response in case of no network
pRequest.deliverError(new VolleyError(RESPONSE_NO_INTERNET));
return;
}
switch (pRequest.getMethod()) {
case Request.Method.POST:
{
pRequest.setRetryPolicy(RETRY_POLICY_POST);
break;
}
case Request.Method.GET:
default:
{
pRequest.setRetryPolicy(RETRY_POLICY_GET);
break;
}
}
mRequestQueue.add(pRequest);
}
@SuppressWarnings("deprecation")
private static void setConnectionParametersForRequest(
com.squareup.okhttp.Request.Builder builder, Request<?> request)
throws IOException, AuthFailureError {
switch (request.getMethod()) {
case Request.Method.DEPRECATED_GET_OR_POST:
// Ensure backwards compatibility.
// Volley assumes a request with a null body is a GET.
byte[] postBody = request.getPostBody();
if (postBody != null) {
builder.post(
RequestBody.create(MediaType.parse(request.getPostBodyContentType()), postBody));
}
break;
case Request.Method.GET:
builder.get();
break;
case Request.Method.DELETE:
builder.delete();
break;
case Request.Method.POST:
builder.post(createRequestBody(request));
break;
case Request.Method.PUT:
builder.put(createRequestBody(request));
break;
case Request.Method.HEAD:
builder.head();
break;
case Request.Method.OPTIONS:
builder.method("OPTIONS", null);
break;
case Request.Method.TRACE:
builder.method("TRACE", null);
break;
case Request.Method.PATCH:
builder.patch(createRequestBody(request));
break;
default:
throw new IllegalStateException("Unknown method type.");
}
}
@Override
public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
throws IOException, AuthFailureError {
String url = request.getUrl();
HashMap<String, String> map = new HashMap<String, String>();
map.putAll(request.getHeaders());
map.putAll(additionalHeaders);
if (mUrlRewriter != null) {
String rewritten = mUrlRewriter.rewriteUrl(url);
if (rewritten == null) {
throw new IOException("URL blocked by rewriter: " + url);
}
url = rewritten;
}
URL parsedUrl = new URL(url);
HttpURLConnection connection = openConnection(parsedUrl, request);
for (String headerName : map.keySet()) {
connection.addRequestProperty(headerName, map.get(headerName));
}
setConnectionParametersForRequest(connection, request);
// Initialize HttpResponse with data from the HttpURLConnection.
ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
int responseCode = connection.getResponseCode();
if (responseCode == -1) {
// -1 is returned by getResponseCode() if the response code could not be retrieved.
// Signal to the caller that something was wrong with the connection.
throw new IOException("Could not retrieve response code from HttpUrlConnection.");
}
StatusLine responseStatus =
new BasicStatusLine(
protocolVersion, connection.getResponseCode(), connection.getResponseMessage());
BasicHttpResponse response = new BasicHttpResponse(responseStatus);
if (hasResponseBody(request.getMethod(), responseStatus.getStatusCode())) {
response.setEntity(entityFromConnection(connection));
}
for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
if (header.getKey() != null) {
Header h = new BasicHeader(header.getKey(), header.getValue().get(0));
response.addHeader(h);
}
}
return response;
}