Examples with ContentOutputBuffer org.apache.http.nio.util.ContentOutputBuffer used on opensource projects

Example 1 with ContentOutputBuffer

use of org.apache.http.nio.util.ContentOutputBuffer in project wso2-synapse by wso2.

the class SourceHandler method outputReady.

public void outputReady(NHttpServerConnection conn, ContentEncoder encoder) {
    try {
        ProtocolState protocolState = SourceContext.getState(conn);
        // special case to handle WSDLs
        if (protocolState == ProtocolState.WSDL_RESPONSE_DONE) {
            // decrement request count for wsdl responses
            metrics.requestServed();
            // we need to shut down if the shutdown flag is set
            HttpContext context = conn.getContext();
            ContentOutputBuffer outBuf = (ContentOutputBuffer) context.getAttribute("synapse.response-source-buffer");
            int bytesWritten = outBuf.produceContent(encoder);
            if (metrics != null && bytesWritten > 0) {
                metrics.incrementBytesSent(bytesWritten);
            }
            conn.requestInput();
            if (outBuf instanceof SimpleOutputBuffer && !((SimpleOutputBuffer) outBuf).hasData()) {
                sourceConfiguration.getSourceConnections().releaseConnection(conn);
            }
            endTransaction(conn);
            return;
        }
        if (protocolState != ProtocolState.RESPONSE_HEAD && protocolState != ProtocolState.RESPONSE_BODY) {
            log.warn("Illegal incoming connection state: " + protocolState + " . Possibly two send backs " + "are happening for the same request");
            handleInvalidState(conn, "Trying to write response body");
            endTransaction(conn);
            return;
        }
        SourceRequest request = SourceContext.getRequest(conn);
        SourceContext.updateState(conn, ProtocolState.RESPONSE_BODY);
        SourceResponse response = SourceContext.getResponse(conn);
        int bytesSent = -1;
        boolean interceptionEnabled = false;
        Boolean[] interceptorResults = new Boolean[noOfInterceptors];
        if (interceptStream) {
            int index = 0;
            for (StreamInterceptor interceptor : streamInterceptors) {
                interceptorResults[index] = interceptor.interceptSourceResponse((MessageContext) conn.getContext().getAttribute(PassThroughConstants.RESPONSE_MESSAGE_CONTEXT));
                if (!interceptionEnabled && interceptorResults[index]) {
                    interceptionEnabled = true;
                }
                index++;
            }
            if (interceptionEnabled) {
                ByteBuffer bytesWritten = response.copyAndWrite(conn, encoder);
                if (bytesWritten != null) {
                    bytesSent = bytesWritten.remaining();
                    index = 0;
                    for (StreamInterceptor interceptor : streamInterceptors) {
                        if (interceptorResults[index]) {
                            interceptor.sourceResponse(bytesWritten.duplicate().asReadOnlyBuffer(), (MessageContext) conn.getContext().getAttribute(PassThroughConstants.RESPONSE_MESSAGE_CONTEXT));
                        }
                        index++;
                    }
                }
            } else {
                bytesSent = response.write(conn, encoder);
            }
        } else {
            bytesSent = response.write(conn, encoder);
        }
        if (encoder.isCompleted()) {
            HttpContext context = conn.getContext();
            long departure = System.currentTimeMillis();
            context.setAttribute(PassThroughConstants.RES_TO_CLIENT_WRITE_END_TIME, departure);
            context.setAttribute(PassThroughConstants.RES_DEPARTURE_TIME, departure);
            if (sourceConfiguration.isCorrelationLoggingEnabled()) {
                logCorrelationRoundTrip(context, request);
            }
            updateMetricsView(context);
        }
        endTransaction(conn);
        metrics.incrementBytesSent(bytesSent);
    } catch (IOException e) {
        logIOException(conn, e);
        informWriterError(conn);
        SourceContext.updateState(conn, ProtocolState.CLOSING);
        sourceConfiguration.getSourceConnections().shutDownConnection(conn, true);
    }
}

Example 2 with ContentOutputBuffer

use of org.apache.http.nio.util.ContentOutputBuffer in project wso2-synapse by wso2.

the class SourceHandler method getOutputStream.

/**
 * Create synapse.response-source-buffer for GET and HEAD Http methods
 * @param method  Http Method
 * @param request Source Request
 * @return OutputStream
 */
public OutputStream getOutputStream(String method, SourceRequest request) {
    OutputStream os = null;
    if (HttpMethod.GET.equals(method) || HttpMethod.HEAD.equals(method)) {
        HttpContext context = request.getConnection().getContext();
        ContentOutputBuffer outputBuffer = new SimpleOutputBuffer(sourceConfiguration.getIOBufferSize(), new HeapByteBufferAllocator());
        context.setAttribute("synapse.response-source-buffer", outputBuffer);
        os = new ContentOutputStream(outputBuffer);
    }
    return os;
}

Example 3 with ContentOutputBuffer

use of org.apache.http.nio.util.ContentOutputBuffer in project wso2-synapse by wso2.

the class ClientHandler method processConnection.

/**
 * Process a new connection over an existing TCP connection or new
 *
 * @param conn HTTP connection to be processed
 * @param axis2Req axis2 representation of the message in the connection
 * @throws ConnectionClosedException if the connection is closed
 */
private void processConnection(final NHttpClientConnection conn, final Axis2HttpRequest axis2Req) throws ConnectionClosedException {
    // record start time of request
    ClientConnectionDebug cd = (ClientConnectionDebug) axis2Req.getMsgContext().getProperty(CLIENT_CONNECTION_DEBUG);
    if (cd != null) {
        cd.recordRequestStartTime(conn, axis2Req);
        conn.getContext().setAttribute(CLIENT_CONNECTION_DEBUG, cd);
    }
    try {
        // Reset connection metrics
        conn.getMetrics().reset();
        HttpContext context = conn.getContext();
        ContentOutputBuffer outputBuffer = new NhttpSharedOutputBuffer(bufferSize, conn, allocator, socketTimeout);
        axis2Req.setOutputBuffer(outputBuffer);
        context.setAttribute(REQUEST_SOURCE_BUFFER, outputBuffer);
        HttpRoute route = axis2Req.getRoute();
        context.setAttribute(AXIS2_HTTP_REQUEST, axis2Req);
        context.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
        context.setAttribute(ExecutionContext.HTTP_TARGET_HOST, route.getTargetHost());
        context.setAttribute(OUTGOING_MESSAGE_CONTEXT, axis2Req.getMsgContext());
        context.setAttribute(NhttpConstants.PROXY_PROFILE_TARGET_HOST, axis2Req.getMsgContext().getProperty(NhttpConstants.PROXY_PROFILE_TARGET_HOST));
        HttpRequest request = axis2Req.getRequest();
        request.setParams(new DefaultedHttpParams(request.getParams(), this.params));
        /*
             * Remove Content-Length and Transfer-Encoding headers, if already present.
             * */
        request.removeHeaders(HTTP.TRANSFER_ENCODING);
        request.removeHeaders(HTTP.CONTENT_LEN);
        this.httpProcessor.process(request, context);
        if (proxyauthenticator != null && route.getProxyHost() != null && !route.isTunnelled()) {
            proxyauthenticator.authenticatePreemptively(request, context);
        }
        if (axis2Req.getTimeout() > 0) {
            conn.setSocketTimeout(axis2Req.getTimeout());
        }
        context.setAttribute(NhttpConstants.ENDPOINT_PREFIX, axis2Req.getEndpointURLPrefix());
        context.setAttribute(NhttpConstants.HTTP_REQ_METHOD, request.getRequestLine().getMethod());
        context.setAttribute(ExecutionContext.HTTP_REQUEST, request);
        setServerContextAttribute(NhttpConstants.REQ_DEPARTURE_TIME, System.currentTimeMillis(), conn);
        setServerContextAttribute(NhttpConstants.REQ_TO_BACKEND_WRITE_START_TIME, System.currentTimeMillis(), conn);
        conn.submitRequest(request);
    } catch (ConnectionClosedException e) {
        throw e;
    } catch (IOException e) {
        if (metrics != null) {
            metrics.incrementFaultsSending();
        }
        handleException("I/O Error submitting request : " + e.getMessage(), e, conn);
    } catch (HttpException e) {
        if (metrics != null) {
            metrics.incrementFaultsSending();
        }
        handleException("HTTP protocol error submitting request : " + e.getMessage(), e, conn);
    } finally {
        synchronized (axis2Req) {
            axis2Req.setReadyToStream(true);
            axis2Req.notifyAll();
        }
    }
}

Example 4 with ContentOutputBuffer

use of org.apache.http.nio.util.ContentOutputBuffer in project wso2-synapse by wso2.

the class ClientHandler method outputReady.

/**
 * Process ready output (i.e. write request to remote server)
 *
 * @param conn the connection being processed
 * @param encoder the encoder in use
 */
public void outputReady(final NHttpClientConnection conn, final ContentEncoder encoder) {
    HttpContext context = conn.getContext();
    ContentOutputBuffer outBuf = (ContentOutputBuffer) context.getAttribute(REQUEST_SOURCE_BUFFER);
    if (outBuf == null)
        return;
    try {
        int bytesWritten = outBuf.produceContent(encoder);
        if (metrics != null) {
            if (bytesWritten > 0) {
                if (metrics.getLevel() == MetricsCollector.LEVEL_FULL) {
                    metrics.incrementBytesSent(getMessageContext(conn), bytesWritten);
                } else {
                    metrics.incrementBytesSent(bytesWritten);
                }
            }
            if (encoder.isCompleted()) {
                if (metrics.getLevel() == MetricsCollector.LEVEL_FULL) {
                    metrics.incrementMessagesSent(getMessageContext(conn));
                } else {
                    metrics.incrementMessagesSent();
                }
            }
        }
        if (encoder.isCompleted()) {
            ClientConnectionDebug ccd = (ClientConnectionDebug) context.getAttribute(CLIENT_CONNECTION_DEBUG);
            if (ccd != null) {
                ccd.recordRequestCompletionTime();
            }
            setServerContextAttribute(NhttpConstants.REQ_TO_BACKEND_WRITE_END_TIME, System.currentTimeMillis(), conn);
        }
    } catch (IOException e) {
        if (metrics != null) {
            if (metrics.getLevel() == MetricsCollector.LEVEL_FULL) {
                metrics.incrementFaultsSending(NhttpConstants.SND_IO_ERROR_SENDING, getMessageContext(conn));
            } else {
                metrics.incrementFaultsSending();
            }
        }
        handleException("I/O Error at outputReady : " + e.getMessage(), e, conn);
    }
}

Example 5 with ContentOutputBuffer

use of org.apache.http.nio.util.ContentOutputBuffer in project wso2-synapse by wso2.

the class ClientHandler method responseReceived.

/**
 * Process a response received for the request sent out
 *
 * @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();
    // set the current message size to zero
    if (isMessageSizeValidationEnabled) {
        context.setAttribute(NhttpConstants.MESSAGE_SIZE_VALIDATION_SUM, 0);
    }
    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 NhttpSharedOutputBuffer(bufferSize, conn, allocator, socketTimeout);
            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");
        }
        // 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);
            NhttpSharedOutputBuffer outputBuffer = (NhttpSharedOutputBuffer) 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();
                // 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);
            }
    }
}