use of org.atmosphere.runtime.AsyncIOInterceptorAdapter in project atmosphere by Atmosphere.
the class HeartbeatInterceptor method inspect.
@Override
public Action inspect(final AtmosphereResource r) {
final AtmosphereResourceImpl impl = AtmosphereResourceImpl.class.cast(r);
final AtmosphereRequest request = impl.getRequest(false);
final AtmosphereResponse response = impl.getResponse(false);
// Check heartbeat
if (clientHeartbeatFrequencyInSeconds > 0) {
byte[] body = new byte[0];
try {
if (!request.getMethod().equalsIgnoreCase("GET")) {
body = IOUtils.readEntirelyAsByte(r);
}
} catch (IOException e) {
logger.warn("", e);
cancelF(request);
return Action.CONTINUE;
}
if (Arrays.equals(paddingBytes, body)) {
// Dispatch an event to notify that a heartbeat has been intercepted
// TODO: see https://github.com/Atmosphere/atmosphere/issues/1561
final AtmosphereResourceEvent event = new HeartbeatAtmosphereResourceEvent(AtmosphereResourceImpl.class.cast(r));
if (AtmosphereResourceHeartbeatEventListener.class.isAssignableFrom(r.getAtmosphereHandler().getClass())) {
r.addEventListener(new AtmosphereResourceEventListenerAdapter.OnHeartbeat() {
@Override
public void onHeartbeat(AtmosphereResourceEvent event) {
AtmosphereResourceHeartbeatEventListener.class.cast(r.getAtmosphereHandler()).onHeartbeat(event);
}
});
}
// Fire event
r.notifyListeners(event);
return Action.CANCELLED;
}
request.body(body);
}
if (Utils.webSocketMessage(r))
return Action.CONTINUE;
final int interval = extractHeartbeatInterval(impl);
if (interval != 0) {
if (!(Utils.pollableTransport(r.transport()) || r.transport() == AtmosphereResource.TRANSPORT.UNDEFINED)) {
super.inspect(r);
final boolean wasSuspended = r.isSuspended();
// Otherwise, the listener will do the job
if (wasSuspended) {
clock(interval, r, request, response);
}
r.addEventListener(new Clock() {
@Override
public void onSuspend(AtmosphereResourceEvent event) {
// We did not clocked when this listener was added because connection was not already suspended
if (!wasSuspended) {
clock(interval, r, request, response);
}
}
@Override
public void onResume(AtmosphereResourceEvent event) {
cancelF(request);
}
@Override
public void onDisconnect(AtmosphereResourceEvent event) {
cancelF(request);
}
@Override
public void onClose(AtmosphereResourceEvent event) {
cancelF(request);
}
});
} else {
return Action.CONTINUE;
}
final AsyncIOWriter writer = response.getAsyncIOWriter();
if (!Utils.resumableTransport(r.transport()) && AtmosphereInterceptorWriter.class.isAssignableFrom(writer.getClass()) && request.getAttribute(INTERCEPTOR_ADDED) == null) {
AtmosphereInterceptorWriter.class.cast(writer).interceptor(new AsyncIOInterceptorAdapter() {
@Override
public byte[] transformPayload(AtmosphereResponse response, byte[] responseDraft, byte[] data) throws IOException {
cancelF(request);
return responseDraft;
}
@Override
public void postPayload(final AtmosphereResponse response, byte[] data, int offset, int length) {
logger.trace("Scheduling heartbeat for {}", r.uuid());
clock(interval, r, request, response);
}
});
request.setAttribute(INTERCEPTOR_ADDED, Boolean.TRUE);
}
}
return Action.CONTINUE;
}
use of org.atmosphere.runtime.AsyncIOInterceptorAdapter in project atmosphere by Atmosphere.
the class PaddingAtmosphereInterceptor method inspect.
@Override
public Action inspect(final AtmosphereResource r) {
if (Utils.webSocketMessage(r))
return Action.CONTINUE;
final AtmosphereResponse response = r.getResponse();
final AtmosphereRequest request = r.getRequest();
String uuid = request.getHeader(HeaderConfig.X_ATMOSPHERE_TRACKING_ID);
boolean padding = r.transport().equals(TRANSPORT.STREAMING) || r.transport().equals(TRANSPORT.LONG_POLLING);
if (uuid != null && !uuid.equals("0") && r.transport().equals(TRANSPORT.WEBSOCKET) && request.getAttribute(INJECTED_ATMOSPHERE_RESOURCE) != null) {
padding = true;
}
if (padding) {
r.addEventListener(new ForcePreSuspend(response));
super.inspect(r);
AsyncIOWriter writer = response.getAsyncIOWriter();
if (AtmosphereInterceptorWriter.class.isAssignableFrom(writer.getClass())) {
AtmosphereInterceptorWriter.class.cast(writer).interceptor(new AsyncIOInterceptorAdapter() {
private void padding() {
if (!r.isSuspended()) {
writePadding(response);
request.setAttribute("paddingWritten", "true");
}
}
@Override
public void prePayload(AtmosphereResponse response, byte[] data, int offset, int length) {
padding();
}
@Override
public void postPayload(AtmosphereResponse response, byte[] data, int offset, int length) {
}
});
} else {
logger.warn("Unable to apply {}. Your AsyncIOWriter must implement {}", getClass().getName(), AtmosphereInterceptorWriter.class.getName());
}
}
return Action.CONTINUE;
}
use of org.atmosphere.runtime.AsyncIOInterceptorAdapter in project atmosphere by Atmosphere.
the class SSEAtmosphereInterceptor method inspect.
@Override
public Action inspect(final AtmosphereResource r) {
if (Utils.webSocketMessage(r))
return Action.CONTINUE;
final AtmosphereResponse response = r.getResponse();
final AtmosphereRequest request = r.getRequest();
String accept = request.getHeader("Accept") == null ? "text/plain" : request.getHeader("Accept").trim();
if (r.transport().equals(AtmosphereResource.TRANSPORT.SSE) || contentType.equalsIgnoreCase(accept)) {
super.inspect(r);
r.addEventListener(new P(response));
AsyncIOWriter writer = response.getAsyncIOWriter();
if (AtmosphereInterceptorWriter.class.isAssignableFrom(writer.getClass())) {
AtmosphereInterceptorWriter.class.cast(writer).interceptor(new AsyncIOInterceptorAdapter() {
private boolean padding() {
if (!r.isSuspended()) {
return writePadding(response);
}
return false;
}
@Override
public void prePayload(AtmosphereResponse response, byte[] data, int offset, int length) {
boolean noPadding = padding();
// In that case, we must pad/protocol indenendently of the state of the AtmosphereResource
if (!noPadding || r.getRequest().getAttribute(CALLBACK_JAVASCRIPT_PROTOCOL) != null) {
// write other meta info such as (id, event, etc)?
response.write(DATA, true);
}
}
@Override
public byte[] transformPayload(AtmosphereResponse response, byte[] responseDraft, byte[] data) throws IOException {
boolean noPadding = padding();
// In that case, we must pad/protocol indenendently of the state of the AtmosphereResource
if (!noPadding || r.getRequest().getAttribute(CALLBACK_JAVASCRIPT_PROTOCOL) != null) {
if (isMultilineData(responseDraft)) {
// return a padded multiline-data
return encodeMultilineData(responseDraft);
}
}
return responseDraft;
}
@Override
public void postPayload(AtmosphereResponse response, byte[] data, int offset, int length) {
// In that case, we must pad/protocol indenendently of the state of the AtmosphereResource
if (r.isSuspended() || r.getRequest().getAttribute(CALLBACK_JAVASCRIPT_PROTOCOL) != null || r.getRequest().getAttribute(CONTAINER_RESPONSE) != null) {
response.write(END, true);
}
/**
* When used with https://github.com/remy/polyfills/blob/master/EventSource.js , we
* resume after every message.
*/
String ua = r.getRequest().getHeader("User-Agent");
if (ua != null && ua.contains("MSIE")) {
try {
response.flushBuffer();
} catch (IOException e) {
logger.trace("", e);
}
r.resume();
}
}
});
} else {
logger.warn("Unable to apply {}. Your AsyncIOWriter must implement {}", getClass().getName(), AtmosphereInterceptorWriter.class.getName());
}
}
return Action.CONTINUE;
}
use of org.atmosphere.runtime.AsyncIOInterceptorAdapter in project atmosphere by Atmosphere.
the class JSONPAtmosphereInterceptor method inspect.
@Override
public Action inspect(AtmosphereResource r) {
if (Utils.webSocketMessage(r))
return Action.CONTINUE;
final AtmosphereRequest request = r.getRequest();
final AtmosphereResponse response = r.getResponse();
// Shield from Broken server
String uri = request.getRequestURI() == null ? "" : request.getRequestURI();
if (r.transport().equals(AtmosphereResource.TRANSPORT.JSONP) || uri.indexOf("jsonp") != -1) {
super.inspect(r);
if (uri.indexOf("jsonp") != -1) {
startChunk = "(\"";
endChunk = "\");\r\n\r\n";
}
AsyncIOWriter writer = response.getAsyncIOWriter();
if (AtmosphereInterceptorWriter.class.isAssignableFrom(writer.getClass())) {
AtmosphereInterceptorWriter.class.cast(writer).interceptor(new AsyncIOInterceptorAdapter() {
String callbackName() {
String callback = request.getParameter(HeaderConfig.JSONP_CALLBACK_NAME);
if (callback == null) {
// Look for extension
String jsonp = (String) config.properties().get(HeaderConfig.JSONP_CALLBACK_NAME);
if (jsonp != null) {
callback = request.getParameter(jsonp);
}
}
return callback;
}
@Override
public void prePayload(AtmosphereResponse response, byte[] data, int offset, int length) {
String callbackName = callbackName();
response.write(callbackName + startChunk);
}
@Override
public byte[] transformPayload(AtmosphereResponse response, byte[] responseDraft, byte[] data) throws IOException {
String charEncoding = response.getCharacterEncoding() == null ? "UTF-8" : response.getCharacterEncoding();
return escapeForJavaScript(new String(responseDraft, charEncoding)).getBytes(charEncoding);
}
@Override
public void postPayload(AtmosphereResponse response, byte[] data, int offset, int length) {
response.write(endChunk, true);
}
});
} else {
logger.warn("Unable to apply {}. Your AsyncIOWriter must implement {}", getClass().getName(), AtmosphereInterceptorWriter.class.getName());
}
}
return Action.CONTINUE;
}
use of org.atmosphere.runtime.AsyncIOInterceptorAdapter in project atmosphere by Atmosphere.
the class AndroidAtmosphereInterceptor method inspect.
@Override
public Action inspect(final AtmosphereResource r) {
if (!r.transport().equals(TRANSPORT.STREAMING))
return Action.CONTINUE;
final AtmosphereResponse response = AtmosphereResourceImpl.class.cast(r).getResponse(false);
String userAgent = AtmosphereResourceImpl.class.cast(r).getRequest(false).getHeader("User-Agent");
if (userAgent != null && (userAgent.indexOf("Android 2.") != -1 || userAgent.indexOf("Android 3.") != -1)) {
super.inspect(r);
AsyncIOWriter writer = response.getAsyncIOWriter();
if (AtmosphereInterceptorWriter.class.isAssignableFrom(writer.getClass())) {
AtmosphereInterceptorWriter.class.cast(writer).interceptor(new AsyncIOInterceptorAdapter() {
@Override
public void prePayload(AtmosphereResponse response, byte[] data, int offset, int length) {
response.write(padding, true);
}
@Override
public void postPayload(AtmosphereResponse response, byte[] data, int offset, int length) {
response.write(padding, true);
}
});
} else {
logger.warn("Unable to apply {}. Your AsyncIOWriter must implement {}", getClass().getName(), AtmosphereInterceptorWriter.class.getName());
}
}
return Action.CONTINUE;
}
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