Example usage for org.apache.http.impl.nio.codecs DefaultHttpRequestParser DefaultHttpRequestParser

Introduction

In this page you can find the example usage for org.apache.http.impl.nio.codecs DefaultHttpRequestParser DefaultHttpRequestParser.

Prototype

public DefaultHttpRequestParser(final SessionInputBuffer buffer, final LineParser parser,
            final HttpRequestFactory requestFactory, final HttpParams params) 

Source Link

Usage

From source file:com.jeny.atmosphere.integration.websocket.RawWebSocketProtocol.java

/**
 * Since protocol is simple http tunneling over web socket using RAW approach it parses web socket body as string which represents http request by HTTP standard.
 * It takes all parameters from passed http request and takes some parameters (like Cookies, Content Type and etc) from initial http request if
 * they are missing in the passed http request. On the client side is supposed that it will take passed parameters and missing parameters from
 * browser context during form http request (like Accept-Charset, Accept-Encoding, User-Agent and etc).
 * {@inheritDoc}//from  ww  w  .ja  va 2  s  . c o  m
 */
@Override
public List<AtmosphereRequest> onMessage(WebSocket webSocket, String d) {

    HttpRequest request = null;
    try {
        HttpParams params = new BasicHttpParams();
        SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 128, params);
        HttpRequestFactory requestFactory = new DefaultHttpRequestFactory();
        NHttpMessageParser<HttpRequest> requestParser = new DefaultHttpRequestParser(inbuf, null,
                requestFactory, params);
        requestParser.fillBuffer(newChannel(d, "UTF-8"));
        request = requestParser.parse();

    } catch (IOException e) {
        throw new RuntimeException(e);
    } catch (HttpException e) {
        throw new RuntimeException(e);
    }

    AtmosphereResourceImpl resource = (AtmosphereResourceImpl) webSocket.resource();
    if (resource == null) {
        logger.error("Invalid state. No AtmosphereResource has been suspended");
        return null;
    }
    AtmosphereRequest initialRequest = resource.getRequest();

    Map<String, Object> attributesMap = new HashMap<String, Object>();
    attributesMap.put(FrameworkConfig.WEBSOCKET_SUBPROTOCOL, FrameworkConfig.SIMPLE_HTTP_OVER_WEBSOCKET);

    // Propagate the original attribute to WebSocket message.
    attributesMap.putAll(initialRequest.attributes());

    // Determine value of path info, request URI
    String pathInfo = request.getRequestLine().getUri();
    UriBuilder pathInfoUriBuilder = UriBuilder.fromUri(pathInfo);
    URI pathInfoUri = pathInfoUriBuilder.build();
    String requestURI = pathInfoUri.getPath();

    // take the Method Type of passed http request
    methodType = request.getRequestLine().getMethod();

    // take the Content Type of passed http request
    contentType = request.getFirstHeader(HttpHeaders.CONTENT_TYPE) != null
            ? request.getFirstHeader(HttpHeaders.CONTENT_TYPE).getValue()
            : initialRequest.getContentType();

    // take the body of passed http request
    String body = null; // TODO how we can take it?

    // We need to create a new AtmosphereRequest as WebSocket message may arrive concurrently on the same connection.
    AtmosphereRequest atmosphereRequest = new AtmosphereRequest.Builder()
            // use HttpServletRequestWrapper to propagate passed http request parameters, headers, cookies and etc.
            // if some parameters (headers, cookies and etc) takes from initial request if they are missing.
            .request(new HttpServletRequestWrapper(initialRequest, request))

            .method(methodType).contentType(contentType).requestURI(requestURI).pathInfo(pathInfo)

            .attributes(attributesMap)

            .body(d) // TODO Unfortunately org.apache.http doesn't allow to take a body need to find workaround
            .destroyable(destroyable).build();

    List<AtmosphereRequest> list = new ArrayList<AtmosphereRequest>();
    list.add(atmosphereRequest);

    return list;
}

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