List of usage examples for org.apache.http.nio.util SharedInputBuffer SharedInputBuffer
public SharedInputBuffer(int buffersize, final IOControl ioctrl, final ByteBufferAllocator allocator)
From source file:org.apache.synapse.transport.nhttp.ClientHandler.java
/** * Perform processing of the received response though Axis2 * * @param conn HTTP connection to be processed * @param context HTTP context associated with the connection * @param response HTTP response associated with the connection *///from w w w . j a v a 2 s . c o m private void processResponse(final NHttpClientConnection conn, HttpContext context, HttpResponse response) { ContentInputBuffer inputBuffer = null; MessageContext outMsgContext = (MessageContext) context.getAttribute(OUTGOING_MESSAGE_CONTEXT); String endptPrefix = (String) context.getAttribute(NhttpConstants.ENDPOINT_PREFIX); String requestMethod = (String) context.getAttribute(NhttpConstants.HTTP_REQ_METHOD); int statusCode = response.getStatusLine().getStatusCode(); boolean expectEntityBody = false; if (!"HEAD".equals(requestMethod) && !"OPTIONS".equals(requestMethod) && statusCode >= HttpStatus.SC_OK && statusCode != HttpStatus.SC_NO_CONTENT && statusCode != HttpStatus.SC_NOT_MODIFIED && statusCode != HttpStatus.SC_RESET_CONTENT) { expectEntityBody = true; } else if (NhttpConstants.HTTP_HEAD.equals(requestMethod)) { // When invoking http HEAD request esb set content length as 0 to response header. Since there is no message // body content length cannot be calculated inside synapse. Hence additional two headers are added to // which contains content length of the backend response and the request method. These headers are removed // before submitting the actual response. response.addHeader(NhttpConstants.HTTP_REQUEST_METHOD, requestMethod); if (response.getFirstHeader(HTTP.CONTENT_LEN) != null) { response.addHeader(NhttpConstants.ORIGINAL_CONTENT_LEN, response.getFirstHeader(HTTP.CONTENT_LEN).getValue()); } } if (expectEntityBody) { inputBuffer = new SharedInputBuffer(cfg.getBufferSize(), conn, allocator); context.setAttribute(RESPONSE_SINK_BUFFER, inputBuffer); BasicHttpEntity entity = new BasicHttpEntity(); if (response.getStatusLine().getProtocolVersion().greaterEquals(HttpVersion.HTTP_1_1)) { entity.setChunked(true); } response.setEntity(entity); context.setAttribute(ExecutionContext.HTTP_RESPONSE, response); } else { conn.resetInput(); conn.resetOutput(); if (context.getAttribute(NhttpConstants.DISCARD_ON_COMPLETE) != null || !connStrategy.keepAlive(response, context)) { try { // this is a connection we should not re-use connpool.forget(conn); shutdownConnection(conn, false, null); context.removeAttribute(RESPONSE_SINK_BUFFER); context.removeAttribute(REQUEST_SOURCE_BUFFER); } catch (Exception ignore) { } } else { connpool.release(conn); } } workerPool .execute(new ClientWorker(cfgCtx, inputBuffer == null ? null : new ContentInputStream(inputBuffer), response, outMsgContext, endptPrefix)); }
From source file:org.apache.synapse.transport.nhttp.ClientHandler.java
/** * Process a response received for the request sent out * // w ww . jav a2 s. c o m * @param conn the connection being processed */ public void responseReceived(final NHttpClientConnection conn) { setServerContextAttribute(NhttpConstants.RES_FROM_BACKEND_READ_START_TIME, System.currentTimeMillis(), conn); HttpContext context = conn.getContext(); HttpResponse response = conn.getHttpResponse(); ProxyTunnelHandler tunnelHandler = (ProxyTunnelHandler) context.getAttribute(TUNNEL_HANDLER); if (tunnelHandler != null && !tunnelHandler.isCompleted()) { context.removeAttribute(TUNNEL_HANDLER); tunnelHandler.handleResponse(response, conn); if (tunnelHandler.isSuccessful()) { log.debug(conn + ": Tunnel established"); conn.resetInput(); conn.requestOutput(); return; } else { Axis2HttpRequest axis2Req = (Axis2HttpRequest) context.getAttribute(ATTACHMENT_KEY); context.setAttribute(AXIS2_HTTP_REQUEST, axis2Req); context.setAttribute(OUTGOING_MESSAGE_CONTEXT, axis2Req.getMsgContext()); ContentOutputBuffer outputBuffer = new SharedOutputBuffer(cfg.getBufferSize(), conn, allocator); axis2Req.setOutputBuffer(outputBuffer); context.setAttribute(REQUEST_SOURCE_BUFFER, outputBuffer); context.setAttribute(NhttpConstants.DISCARD_ON_COMPLETE, Boolean.TRUE); } } setServerContextAttribute(NhttpConstants.RES_HEADER_ARRIVAL_TIME, System.currentTimeMillis(), conn); if (response.getStatusLine().getStatusCode() == HttpStatus.SC_CONTINUE) { if (log.isDebugEnabled()) { log.debug(conn + ": Received a 100 Continue response"); } // according to the HTTP 1.1 specification HTTP status 100 continue implies that // the response will be followed, and the client should just ignore the 100 Continue // and wait for the response return; } ClientConnectionDebug ccd = (ClientConnectionDebug) conn.getContext().getAttribute(CLIENT_CONNECTION_DEBUG); if (ccd != null) { ccd.recordResponseStartTime(response.getStatusLine().toString()); } // Have we sent out our request fully in the first place? if not, forget about it now.. Axis2HttpRequest req = (Axis2HttpRequest) conn.getContext().getAttribute(AXIS2_HTTP_REQUEST); if (req != null) { req.setCompleted(true); if (log.isDebugEnabled()) { log.debug(conn + ": Response Received for Request : " + req); } if (!req.isSendingCompleted()) { req.getMsgContext().setProperty(NhttpConstants.ERROR_CODE, NhttpConstants.SEND_ABORT); SharedOutputBuffer outputBuffer = (SharedOutputBuffer) conn.getContext() .getAttribute(REQUEST_SOURCE_BUFFER); if (outputBuffer != null) { outputBuffer.shutdown(); } if (log.isDebugEnabled()) { log.debug(conn + ": Remote server aborted request being sent and replied : " + conn + " for request : " + conn.getContext().getAttribute(NhttpConstants.HTTP_REQ_METHOD)); } context.setAttribute(NhttpConstants.DISCARD_ON_COMPLETE, Boolean.TRUE); if (metrics != null) { metrics.incrementFaultsSending(NhttpConstants.SEND_ABORT, req.getMsgContext()); } } } switch (response.getStatusLine().getStatusCode()) { case HttpStatus.SC_ACCEPTED: { if (log.isDebugEnabled()) { log.debug(conn + ": Received a 202 Accepted response"); } // Process response body if Content-Type header is present in the response // If Content-Type header is null, We will ignore entity body Header contentType = response.getFirstHeader(HTTP.CONTENT_TYPE); if (contentType != null) { processResponse(conn, context, response); return; } // sometimes, some http clients sends an "\r\n" as the content body with a // HTTP 202 OK.. we will just get it into this temp buffer and ignore it.. ContentInputBuffer inputBuffer = new SharedInputBuffer(8, conn, allocator); context.setAttribute(RESPONSE_SINK_BUFFER, inputBuffer); // create a dummy message with an empty SOAP envelope and a property // NhttpConstants.SC_ACCEPTED set to Boolean.TRUE to indicate this is a // placeholder message for the transport to send a HTTP 202 to the // client. Should / would be ignored by any transport other than // nhttp. For example, JMS would not send a reply message for one-way // operations. MessageContext outMsgCtx = (MessageContext) context.getAttribute(OUTGOING_MESSAGE_CONTEXT); MessageReceiver mr = outMsgCtx.getAxisOperation().getMessageReceiver(); // the following check is to support the dual channel invocation. Hence the // response will be sent as a new request to the client over a different channel // client sends back a 202 Accepted response to synapse and we need to neglect that // 202 Accepted message if (!outMsgCtx.isPropertyTrue(NhttpConstants.IGNORE_SC_ACCEPTED)) { try { MessageContext responseMsgCtx = outMsgCtx.getOperationContext() .getMessageContext(WSDL2Constants.MESSAGE_LABEL_IN); if (responseMsgCtx == null || outMsgCtx.getOptions().isUseSeparateListener() || outMsgCtx.getOperationContext().isComplete()) { if (responseMsgCtx != null && responseMsgCtx.getProperty("synapse.send") == null) { return; } } else if (responseMsgCtx == null || outMsgCtx.getOptions().isUseSeparateListener()) { // Since we need to notify the SynapseCallback receiver to remove the // call backs registered we set a custom property setHeaders(context, response, outMsgCtx, responseMsgCtx); outMsgCtx.setProperty(NhttpConstants.HTTP_202_RECEIVED, "true"); mr.receive(outMsgCtx); return; } if (responseMsgCtx == null) { return; } setHeaders(context, response, outMsgCtx, responseMsgCtx); responseMsgCtx.setServerSide(true); responseMsgCtx.setDoingREST(outMsgCtx.isDoingREST()); responseMsgCtx.setProperty(MessageContext.TRANSPORT_IN, outMsgCtx.getProperty(MessageContext.TRANSPORT_IN)); responseMsgCtx.setTransportIn(outMsgCtx.getTransportIn()); responseMsgCtx.setTransportOut(outMsgCtx.getTransportOut()); responseMsgCtx.setAxisMessage( outMsgCtx.getAxisOperation().getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE)); responseMsgCtx.setOperationContext(outMsgCtx.getOperationContext()); responseMsgCtx.setConfigurationContext(outMsgCtx.getConfigurationContext()); responseMsgCtx.setTo(null); if (!outMsgCtx.isDoingREST() && !outMsgCtx.isSOAP11()) { responseMsgCtx.setEnvelope(new SOAP12Factory().getDefaultEnvelope()); } else { responseMsgCtx.setEnvelope(new SOAP11Factory().getDefaultEnvelope()); } responseMsgCtx.setProperty(AddressingConstants.DISABLE_ADDRESSING_FOR_OUT_MESSAGES, Boolean.TRUE); responseMsgCtx.setProperty(NhttpConstants.SC_ACCEPTED, Boolean.TRUE); int statusCode = response.getStatusLine().getStatusCode(); responseMsgCtx.setProperty(NhttpConstants.HTTP_SC, statusCode); mr.receive(responseMsgCtx); } catch (org.apache.axis2.AxisFault af) { log.debug(conn + ": Unable to report back " + "202 Accepted state to the message receiver"); } } return; } case HttpStatus.SC_OK: { processResponse(conn, context, response); return; } case HttpStatus.SC_INTERNAL_SERVER_ERROR: { if (warnOnHttp500(response)) { log.warn(getErrorMessage( "Received an internal server error : " + response.getStatusLine().getReasonPhrase(), conn)); } processResponse(conn, context, response); return; } default: { if (log.isDebugEnabled()) { log.debug(conn + ": " + getErrorMessage("HTTP status code received : " + response.getStatusLine().getStatusCode() + " :: " + response.getStatusLine().getReasonPhrase(), conn)); } Header contentType = response.getFirstHeader(HTTP.CONTENT_TYPE); if (contentType != null) { if ((contentType.getValue().indexOf(SOAP11Constants.SOAP_11_CONTENT_TYPE) >= 0) || contentType.getValue().indexOf(SOAP12Constants.SOAP_12_CONTENT_TYPE) >= 0) { if (log.isDebugEnabled()) { log.debug(conn + ": Received an unexpected response with a SOAP payload"); } } else if (contentType.getValue().indexOf("html") == -1) { if (log.isDebugEnabled()) { log.debug(conn + ": Received an unexpected response with a POX/REST payload"); } } else { log.warn(getErrorMessage( "Received an unexpected response - " + "of content type : " + contentType.getValue() + " and status code : " + response.getStatusLine().getStatusCode() + " with reason : " + response.getStatusLine().getReasonPhrase(), conn)); } } else { if (log.isDebugEnabled()) { log.debug(conn + ": " + getErrorMessage( "Received a response - " + "without a content type with status code : " + response.getStatusLine().getStatusCode() + " and reason : " + response.getStatusLine().getReasonPhrase(), conn)); } } processResponse(conn, context, response); } } }
From source file:org.apache.synapse.transport.nhttp.ServerHandler.java
/** * Process a new incoming request//from ww w . ja va 2s . com * @param conn the connection */ public void requestReceived(final NHttpServerConnection conn) { HttpContext context = conn.getContext(); context.setAttribute(NhttpConstants.REQ_ARRIVAL_TIME, System.currentTimeMillis()); context.setAttribute(NhttpConstants.REQ_FROM_CLIENT_READ_START_TIME, System.currentTimeMillis()); HttpRequest request = conn.getHttpRequest(); context.setAttribute(ExecutionContext.HTTP_REQUEST, request); context.setAttribute(NhttpConstants.MESSAGE_IN_FLIGHT, "true"); // prepare to collect debug information conn.getContext().setAttribute(ServerHandler.SERVER_CONNECTION_DEBUG, new ServerConnectionDebug(conn)); NHttpConfiguration cfg = NHttpConfiguration.getInstance(); try { InputStream is; // Only create an input buffer and ContentInputStream if the request has content if (request instanceof HttpEntityEnclosingRequest) { // Mark request as not yet fully read, to detect timeouts from harmless keepalive deaths conn.getContext().setAttribute(NhttpConstants.REQUEST_READ, Boolean.FALSE); ContentInputBuffer inputBuffer = new SharedInputBuffer(cfg.getBufferSize(), conn, allocator); context.setAttribute(REQUEST_SINK_BUFFER, inputBuffer); is = new ContentInputStream(inputBuffer); } else { is = null; conn.getContext().removeAttribute(NhttpConstants.REQUEST_READ); } ContentOutputBuffer outputBuffer = new SharedOutputBuffer(cfg.getBufferSize(), conn, allocator); context.setAttribute(RESPONSE_SOURCE_BUFFER, outputBuffer); OutputStream os = new ContentOutputStream(outputBuffer); // create the default response to this request ProtocolVersion httpVersion = request.getRequestLine().getProtocolVersion(); HttpResponse response = responseFactory.newHttpResponse(httpVersion, HttpStatus.SC_OK, context); // create a basic HttpEntity using the source channel of the response pipe BasicHttpEntity entity = new BasicHttpEntity(); if (httpVersion.greaterEquals(HttpVersion.HTTP_1_1)) { entity.setChunked(true); } response.setEntity(entity); if (metrics != null) { metrics.incrementMessagesReceived(); } // hand off processing of the request to a thread off the pool ServerWorker worker = new ServerWorker(cfgCtx, scheme.getName(), metrics, conn, this, request, is, response, os, listenerContext.isRestDispatching(), listenerContext.getHttpGetRequestProcessor()); if (workerPool != null) { workerPool.execute(worker); } else if (executor != null) { Map<String, String> headers = new HashMap<String, String>(); for (Header header : request.getAllHeaders()) { headers.put(header.getName(), header.getValue()); } EvaluatorContext evaluatorContext = new EvaluatorContext(request.getRequestLine().getUri(), headers); int priority = parser.parse(evaluatorContext); executor.execute(worker, priority); } // See if the client expects a 100-Continue Header expect = request.getFirstHeader(HTTP.EXPECT_DIRECTIVE); if (expect != null && HTTP.EXPECT_CONTINUE.equalsIgnoreCase(expect.getValue())) { HttpResponse ack = new BasicHttpResponse(request.getProtocolVersion(), HttpStatus.SC_CONTINUE, "Continue"); conn.submitResponse(ack); if (log.isDebugEnabled()) { log.debug(conn + ": Expect :100 Continue hit, sending ack back to the server"); } return; } } catch (Exception e) { if (metrics != null) { metrics.incrementFaultsReceiving(); } handleException("Error processing request received for : " + request.getRequestLine().getUri(), e, conn); } }