Example usage for org.apache.http.nio.util ContentOutputBuffer produceContent

Introduction

In this page you can find the example usage for org.apache.http.nio.util ContentOutputBuffer produceContent.

Prototype

int produceContent(ContentEncoder encoder) throws IOException;

Source Link

Document

Writes content from this buffer to the given ContentEncoder .

Usage

From source file:org.apache.synapse.transport.nhttp.ServerHandler.java

/**
 * Process ready output by writing into the channel
 * @param conn the connection being processed
 * @param encoder the content encoder in use
 *///from   w  w w  .  ja v a 2 s.  c o m
public void outputReady(final NHttpServerConnection conn, final ContentEncoder encoder) {

    HttpContext context = conn.getContext();
    HttpResponse response = conn.getHttpResponse();
    ContentOutputBuffer outBuf = (ContentOutputBuffer) context.getAttribute(RESPONSE_SOURCE_BUFFER);

    if (outBuf == null) {
        // fix for SYNAPSE 584. This is a temporaly fix becuase of HTTPCORE-208
        shutdownConnection(conn, false, null);
        return;
    }

    try {
        int bytesWritten = outBuf.produceContent(encoder);
        if (metrics != null && bytesWritten > 0) {
            metrics.incrementBytesSent(bytesWritten);
        }

        if (encoder.isCompleted()) {
            long currentTime = System.currentTimeMillis();
            context.setAttribute(NhttpConstants.RES_TO_CLIENT_WRITE_END_TIME, currentTime);
            context.setAttribute(NhttpConstants.RES_DEPARTURE_TIME, currentTime);
            updateLatencyView(context);

            context.removeAttribute(NhttpConstants.REQ_ARRIVAL_TIME);
            context.removeAttribute(NhttpConstants.REQ_DEPARTURE_TIME);
            context.removeAttribute(NhttpConstants.RES_ARRIVAL_TIME);

            ((ServerConnectionDebug) conn.getContext().getAttribute(SERVER_CONNECTION_DEBUG))
                    .recordResponseCompletionTime();

            Boolean reqRead = (Boolean) conn.getContext().getAttribute(NhttpConstants.REQUEST_READ);
            Boolean forceConnectionClose = (Boolean) conn.getContext()
                    .getAttribute(NhttpConstants.FORCE_CONNECTION_CLOSE);
            if (reqRead != null && !reqRead) {
                try {
                    // this is a connection we should not re-use
                    conn.close();
                } catch (Exception ignore) {
                }
            } else if (!connStrategy.keepAlive(response, context)) {
                conn.close();
            } else if (forceConnectionClose != null && forceConnectionClose) {
                conn.close();
            } else {
                conn.requestInput();
            }
        }

    } catch (IOException e) {
        if (metrics != null) {
            metrics.incrementFaultsSending();
        }
        handleException("I/O Error at outputReady : " + e.getMessage(), e, conn);
    }
}

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From source file:org.apache.synapse.transport.nhttp.ClientHandler.java

/**
 * Process ready output (i.e. write request to remote server)
 * /*from w  w w .  j  a v a 2  s.  co  m*/
 * @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);
    }
}

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From source file:org.apache.synapse.transport.passthru.SourceHandler.java

public void outputReady(NHttpServerConnection conn, ContentEncoder encoder) {
    try {//from ww w .  j av  a2  s .  c o  m
        ProtocolState protocolState = SourceContext.getState(conn);

        //special case to handle WSDLs
        if (protocolState == ProtocolState.WSDL_RESPONSE_DONE) {
            // 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;
        }

        SourceContext.updateState(conn, ProtocolState.RESPONSE_BODY);

        SourceResponse response = SourceContext.getResponse(conn);

        int 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);
            updateLatencyView(context);
        }
        endTransaction(conn);
        metrics.incrementBytesSent(bytesSent);
    } catch (IOException e) {
        logIOException(conn, e);

        informWriterError(conn);

        SourceContext.updateState(conn, ProtocolState.CLOSING);
        sourceConfiguration.getSourceConnections().shutDownConnection(conn, true);
    }
}

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From source file:org.siddhiesb.transport.passthru.SourceHandler.java

public void outputReady(NHttpServerConnection conn, ContentEncoder encoder) {
    try {//from   w ww . j  a v a 2 s.com
        org.siddhiesb.transport.passthru.ProtocolState protocolState = org.siddhiesb.transport.passthru.SourceContext
                .getState(conn);

        //special case to handle WSDLs
        if (protocolState == org.siddhiesb.transport.passthru.ProtocolState.WSDL_RESPONSE_DONE) {
            // 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);
            conn.requestInput();
            if (outBuf instanceof SimpleOutputBuffer && !((SimpleOutputBuffer) outBuf).hasData()) {
                sourceConfiguration.getSourceConnections().releaseConnection(conn);
            }

            return;
        }

        if (protocolState != org.siddhiesb.transport.passthru.ProtocolState.RESPONSE_HEAD
                && protocolState != org.siddhiesb.transport.passthru.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");
            return;
        }

        org.siddhiesb.transport.passthru.SourceContext.updateState(conn,
                org.siddhiesb.transport.passthru.ProtocolState.RESPONSE_BODY);

        SourceResponse response = org.siddhiesb.transport.passthru.SourceContext.getResponse(conn);

        int bytesSent = response.write(conn, encoder);

        if (encoder.isCompleted()) {
            HttpContext context = conn.getContext();
            if (context.getAttribute(PassThroughConstants.REQ_ARRIVAL_TIME) != null
                    && context.getAttribute(PassThroughConstants.REQ_DEPARTURE_TIME) != null
                    && context.getAttribute(PassThroughConstants.RES_HEADER_ARRIVAL_TIME) != null) {
            }

            context.removeAttribute(PassThroughConstants.REQ_ARRIVAL_TIME);
            context.removeAttribute(PassThroughConstants.REQ_DEPARTURE_TIME);
            context.removeAttribute(PassThroughConstants.RES_HEADER_ARRIVAL_TIME);
        }

    } catch (IOException e) {
        logIOException(conn, e);

        informWriterError(conn);

        org.siddhiesb.transport.passthru.SourceContext.updateState(conn,
                org.siddhiesb.transport.passthru.ProtocolState.CLOSING);
        sourceConfiguration.getSourceConnections().shutDownConnection(conn);
    }
}

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