/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.backends.gwt;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.badlogic.gdx.Net;
import com.badlogic.gdx.net.HttpStatus;
import com.badlogic.gdx.net.ServerSocket;
import com.badlogic.gdx.net.ServerSocketHints;
import com.badlogic.gdx.net.Socket;
import com.badlogic.gdx.net.SocketHints;
import com.badlogic.gdx.utils.GdxRuntimeException;
import com.badlogic.gdx.utils.ObjectMap;
import com.google.gwt.http.client.Header;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.user.client.Window;
public class GwtNet implements Net {
ObjectMap<HttpRequest, Request> requests;
ObjectMap<HttpRequest, HttpResponseListener> listeners;
private final class HttpClientResponse implements HttpResponse {
private Response response;
private HttpStatus status;
public HttpClientResponse (Response response) {
this.response = response;
this.status = new HttpStatus(response.getStatusCode());
}
@Override
public byte[] getResult () {
return null;
}
@Override
public String getResultAsString () {
return response.getText();
}
@Override
public InputStream getResultAsStream () {
return null;
}
@Override
public HttpStatus getStatus () {
return status;
}
@Override
public Map<String, List<String>> getHeaders () {
Map<String, List<String>> headers = new HashMap<String, List<String>>();
Header[] responseHeaders = response.getHeaders();
for (int i = 0; i < responseHeaders.length; i++) {
String headerName = responseHeaders[i].getName();
List<String> headerValues = headers.get(headerName);
if (headerValues == null) {
headerValues = new ArrayList<String>();
headers.put(headerName, headerValues);
}
headerValues.add(responseHeaders[i].getValue());
}
return headers;
}
@Override
public String getHeader (String name) {
return response.getHeader(name);
}
}
public GwtNet () {
requests = new ObjectMap<HttpRequest, Request>();
listeners = new ObjectMap<HttpRequest, HttpResponseListener>();
}
@Override
public void sendHttpRequest (final HttpRequest httpRequest, final HttpResponseListener httpResultListener) {
if (httpRequest.getUrl() == null) {
httpResultListener.failed(new GdxRuntimeException("can't process a HTTP request without URL set"));
return;
}
final String method = httpRequest.getMethod();
final String value = httpRequest.getContent();
final boolean valueInBody = method.equalsIgnoreCase(HttpMethods.POST) || method.equals(HttpMethods.PUT);
RequestBuilder builder;
String url = httpRequest.getUrl();
if (method.equalsIgnoreCase(HttpMethods.GET)) {
if (value != null) {
url += "?" + value;
}
builder = new RequestBuilder(RequestBuilder.GET, url);
} else if (method.equalsIgnoreCase(HttpMethods.POST)) {
builder = new RequestBuilder(RequestBuilder.POST, url);
} else if (method.equalsIgnoreCase(HttpMethods.DELETE)) {
if (value != null) {
url += "?" + value;
}
builder = new RequestBuilder(RequestBuilder.DELETE, url);
} else if (method.equalsIgnoreCase(HttpMethods.PUT)) {
builder = new RequestBuilder(RequestBuilder.PUT, url);
} else {
throw new GdxRuntimeException("Unsupported HTTP Method");
}
Map<String, String> content = httpRequest.getHeaders();
Set<String> keySet = content.keySet();
for (String name : keySet) {
builder.setHeader(name, content.get(name));
}
builder.setTimeoutMillis(httpRequest.getTimeOut());
try {
Request request = builder.sendRequest(valueInBody ? value : null, new RequestCallback() {
@Override
public void onResponseReceived (Request request, Response response) {
httpResultListener.handleHttpResponse(new HttpClientResponse(response));
requests.remove(httpRequest);
listeners.remove(httpRequest);
}
@Override
public void onError (Request request, Throwable exception) {
httpResultListener.failed(exception);
requests.remove(httpRequest);
listeners.remove(httpRequest);
}
});
requests.put(httpRequest, request);
listeners.put(httpRequest, httpResultListener);
} catch (RequestException e) {
httpResultListener.failed(e);
}
}
@Override
public void cancelHttpRequest (HttpRequest httpRequest) {
HttpResponseListener httpResponseListener = listeners.get(httpRequest);
Request request = requests.get(httpRequest);
if (httpResponseListener != null && request != null) {
request.cancel();
httpResponseListener.cancelled();
requests.remove(httpRequest);
listeners.remove(httpRequest);
}
}
@Override
public ServerSocket newServerSocket (Protocol protocol, int port, ServerSocketHints hints) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public Socket newClientSocket (Protocol protocol, String host, int port, SocketHints hints) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public void openURI (String URI) {
Window.open(URI, "_blank", null);
}
}