Java HttpRoute.isTunnelled方法代碼示例

import org.apache.http.conn.routing.HttpRoute; //導入方法依賴的package包/類
public void process(final HttpRequest request, final HttpContext context)
        throws HttpException, IOException {
    if (request == null) {
        throw new IllegalArgumentException("HTTP request may not be null");
    }

    String method = request.getRequestLine().getMethod();
    if (method.equalsIgnoreCase("CONNECT")) {
        request.setHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
        return;
    }

    // Obtain the client connection (required)
    HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
            ExecutionContext.HTTP_CONNECTION);
    if (conn == null) {
        this.log.debug("HTTP connection not set in the context");
        return;
    }

    HttpRoute route = conn.getRoute();

    if (route.getHopCount() == 1 || route.isTunnelled()) {
        if (!request.containsHeader(HTTP.CONN_DIRECTIVE)) {
            request.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
        }
    }
    if (route.getHopCount() == 2 && !route.isTunnelled()) {
        if (!request.containsHeader(PROXY_CONN_DIRECTIVE)) {
            request.addHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
        }
    }
}
 

import org.apache.http.conn.routing.HttpRoute; //導入方法依賴的package包/類
public void process(final HttpRequest request, final HttpContext context)
        throws HttpException, IOException {
    if (request == null) {
        throw new IllegalArgumentException("HTTP request may not be null");
    }
    if (context == null) {
        throw new IllegalArgumentException("HTTP context may not be null");
    }

    if (request.containsHeader(AUTH.PROXY_AUTH_RESP)) {
        return;
    }

    HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
            ExecutionContext.HTTP_CONNECTION);
    if (conn == null) {
        this.log.debug("HTTP connection not set in the context");
        return;
    }
    HttpRoute route = conn.getRoute();
    if (route.isTunnelled()) {
        return;
    }

    // Obtain authentication state
    AuthState authState = (AuthState) context.getAttribute(
            ClientContext.PROXY_AUTH_STATE);
    if (authState == null) {
        this.log.debug("Proxy auth state not set in the context");
        return;
    }
    if (this.log.isDebugEnabled()) {
        this.log.debug("Proxy auth state: " + authState.getState());
    }
    process(authState, request, context);
}
 

import org.apache.http.conn.routing.HttpRoute; //導入方法依賴的package包/類
protected void rewriteRequestURI(
        final RequestWrapper request,
        final HttpRoute route) throws ProtocolException {
    try {

        URI uri = request.getURI();
        if (route.getProxyHost() != null && !route.isTunnelled()) {
            // Make sure the request URI is absolute
            if (!uri.isAbsolute()) {
                HttpHost target = route.getTargetHost();
                uri = URIUtils.rewriteURI(uri, target, true);
            } else {
                uri = URIUtils.rewriteURI(uri);
            }
        } else {
            // Make sure the request URI is relative
            if (uri.isAbsolute()) {
                uri = URIUtils.rewriteURI(uri, null);
            } else {
                uri = URIUtils.rewriteURI(uri);
            }
        }
        request.setURI(uri);

    } catch (URISyntaxException ex) {
        throw new ProtocolException("Invalid URI: " +
                request.getRequestLine().getUri(), ex);
    }
}
 

import org.apache.http.conn.routing.HttpRoute; //導入方法依賴的package包/類
/**
 * Execute request and retry in case of a recoverable I/O failure
 */
private HttpResponse tryExecute(
        final RoutedRequest req, final HttpContext context) throws HttpException, IOException {
    RequestWrapper wrapper = req.getRequest();
    HttpRoute route = req.getRoute();
    HttpResponse response = null;

    Exception retryReason = null;
    for (;;) {
        // Increment total exec count (with redirects)
        execCount++;
        // Increment exec count for this particular request
        wrapper.incrementExecCount();
        if (!wrapper.isRepeatable()) {
            this.log.debug("Cannot retry non-repeatable request");
            if (retryReason != null) {
                throw new NonRepeatableRequestException("Cannot retry request " +
                    "with a non-repeatable request entity.  The cause lists the " +
                    "reason the original request failed.", retryReason);
            } else {
                throw new NonRepeatableRequestException("Cannot retry request " +
                        "with a non-repeatable request entity.");
            }
        }

        try {
            if (!managedConn.isOpen()) {
                // If we have a direct route to the target host
                // just re-open connection and re-try the request
                if (!route.isTunnelled()) {
                    this.log.debug("Reopening the direct connection.");
                    managedConn.open(route, context, params);
                } else {
                    // otherwise give up
                    this.log.debug("Proxied connection. Need to start over.");
                    break;
                }
            }

            if (this.log.isDebugEnabled()) {
                this.log.debug("Attempt " + execCount + " to execute request");
            }
            response = requestExec.execute(wrapper, managedConn, context);
            break;

        } catch (IOException ex) {
            this.log.debug("Closing the connection.");
            try {
                managedConn.close();
            } catch (IOException ignore) {
            }
            if (retryHandler.retryRequest(ex, wrapper.getExecCount(), context)) {
                if (this.log.isInfoEnabled()) {
                    this.log.info("I/O exception ("+ ex.getClass().getName() +
                            ") caught when processing request: "
                            + ex.getMessage());
                }
                if (this.log.isDebugEnabled()) {
                    this.log.debug(ex.getMessage(), ex);
                }
                this.log.info("Retrying request");
                retryReason = ex;
            } else {
                throw ex;
            }
        }
    }
    return response;
}