Example usage for org.apache.http.impl.nio.client AbstractClientExchangeHandler getRoute

Introduction

In this page you can find the example usage for org.apache.http.impl.nio.client AbstractClientExchangeHandler getRoute.

Prototype

final HttpRoute getRoute() 

Source Link

Usage

From source file:org.apache.http.impl.nio.client.MainClientExec.java

@Override
public HttpRequest generateRequest(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws IOException, HttpException {

    final HttpRoute route = handler.getRoute();

    handler.verifytRoute();/*from  w  w w . jav  a 2  s  .c om*/

    if (!handler.isRouteEstablished()) {
        int step;
        loop: do {
            final HttpRoute fact = handler.getActualRoute();
            step = this.routeDirector.nextStep(route, fact);
            switch (step) {
            case HttpRouteDirector.CONNECT_TARGET:
                handler.onRouteToTarget();
                break;
            case HttpRouteDirector.CONNECT_PROXY:
                handler.onRouteToProxy();
                break;
            case HttpRouteDirector.TUNNEL_TARGET:
                if (this.log.isDebugEnabled()) {
                    this.log.debug("[exchange: " + state.getId() + "] Tunnel required");
                }
                final HttpRequest connect = createConnectRequest(route, state);
                handler.setCurrentRequest(HttpRequestWrapper.wrap(connect));
                break loop;
            case HttpRouteDirector.TUNNEL_PROXY:
                throw new HttpException("Proxy chains are not supported");
            case HttpRouteDirector.LAYER_PROTOCOL:
                handler.onRouteUpgrade();
                break;
            case HttpRouteDirector.UNREACHABLE:
                throw new HttpException(
                        "Unable to establish route: " + "planned = " + route + "; current = " + fact);
            case HttpRouteDirector.COMPLETE:
                handler.onRouteComplete();
                this.log.debug("Connection route established");
                break;
            default:
                throw new IllegalStateException("Unknown step indicator " + step + " from RouteDirector.");
            }
        } while (step > HttpRouteDirector.COMPLETE);
    }

    final HttpClientContext localContext = state.getLocalContext();
    HttpRequestWrapper currentRequest = handler.getCurrentRequest();
    if (currentRequest == null) {
        currentRequest = state.getMainRequest();
        handler.setCurrentRequest(currentRequest);
    }

    if (handler.isRouteEstablished()) {
        state.incrementExecCount();
        if (state.getExecCount() > 1) {
            final HttpAsyncRequestProducer requestProducer = state.getRequestProducer();
            if (!requestProducer.isRepeatable() && state.isRequestContentProduced()) {
                throw new NonRepeatableRequestException(
                        "Cannot retry request " + "with a non-repeatable request entity.");
            }
            requestProducer.resetRequest();
        }
        if (this.log.isDebugEnabled()) {
            this.log.debug("[exchange: " + state.getId() + "] Attempt " + state.getExecCount()
                    + " to execute request");
        }

        if (!currentRequest.containsHeader(AUTH.WWW_AUTH_RESP)) {
            final AuthState targetAuthState = localContext.getTargetAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Target auth state: " + targetAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, targetAuthState, localContext);
        }
        if (!currentRequest.containsHeader(AUTH.PROXY_AUTH_RESP) && !route.isTunnelled()) {
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Proxy auth state: " + proxyAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, proxyAuthState, localContext);
        }
    } else {
        if (!currentRequest.containsHeader(AUTH.PROXY_AUTH_RESP)) {
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.log.isDebugEnabled()) {
                this.log.debug("Proxy auth state: " + proxyAuthState.getState());
            }
            this.authenticator.generateAuthResponse(currentRequest, proxyAuthState, localContext);
        }
    }

    final NHttpClientConnection managedConn = handler.getConnection();
    localContext.setAttribute(HttpCoreContext.HTTP_CONNECTION, managedConn);
    final RequestConfig config = localContext.getRequestConfig();
    if (config.getSocketTimeout() > 0) {
        managedConn.setSocketTimeout(config.getSocketTimeout());
    }
    return currentRequest;
}

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From source file:org.apache.http.impl.nio.client.MainClientExec.java

@Override
public void responseCompleted(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws IOException, HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final HttpResponse currentResponse = handler.getCurrentResponse();

    if (!handler.isRouteEstablished()) {
        final int status = currentResponse.getStatusLine().getStatusCode();
        if (status == HttpStatus.SC_OK) {
            handler.setCurrentResponse(null);
            return;
        }/*from  w  w w.j  a v a 2  s  . c o  m*/
    }

    final boolean keepAlive = handler.manageConnectionPersistence();
    if (!keepAlive) {
        handler.releaseConnection();
        final AuthState proxyAuthState = localContext.getProxyAuthState();
        if (proxyAuthState.getState() == AuthProtocolState.SUCCESS && proxyAuthState.getAuthScheme() != null
                && proxyAuthState.getAuthScheme().isConnectionBased()) {
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Resetting proxy auth state");
            }
            proxyAuthState.reset();
        }
        final AuthState targetAuthState = localContext.getTargetAuthState();
        if (targetAuthState.getState() == AuthProtocolState.SUCCESS && targetAuthState.getAuthScheme() != null
                && targetAuthState.getAuthScheme().isConnectionBased()) {
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Resetting target auth state");
            }
            targetAuthState.reset();
        }
    }

    Object userToken = localContext.getUserToken();
    if (userToken == null) {
        userToken = this.userTokenHandler.getUserToken(localContext);
        localContext.setAttribute(HttpClientContext.USER_TOKEN, userToken);
    }

    if (state.getFinalResponse() != null) {
        final HttpAsyncResponseConsumer<?> responseConsumer = state.getResponseConsumer();
        responseConsumer.responseCompleted(localContext);
        if (this.log.isDebugEnabled()) {
            this.log.debug("[exchange: " + state.getId() + "] Response processed");
        }
        handler.releaseConnection();
    } else {
        if (state.getRedirect() != null) {
            final HttpUriRequest redirect = state.getRedirect();
            final URI uri = redirect.getURI();
            if (this.log.isDebugEnabled()) {
                this.log.debug("[exchange: " + state.getId() + "] Redirecting to '" + uri + "'");
            }
            state.setRedirect(null);

            final HttpHost newTarget = URIUtils.extractHost(uri);
            if (newTarget == null) {
                throw new ProtocolException("Redirect URI does not specify a valid host name: " + uri);
            }

            // Reset auth states if redirecting to another host
            final HttpRoute route = handler.getRoute();
            if (!route.getTargetHost().equals(newTarget)) {
                final AuthState targetAuthState = localContext.getTargetAuthState();
                if (this.log.isDebugEnabled()) {
                    this.log.debug("[exchange: " + state.getId() + "] Resetting target auth state");
                }
                targetAuthState.reset();
                final AuthState proxyAuthState = localContext.getProxyAuthState();
                final AuthScheme authScheme = proxyAuthState.getAuthScheme();
                if (authScheme != null && authScheme.isConnectionBased()) {
                    if (this.log.isDebugEnabled()) {
                        this.log.debug("[exchange: " + state.getId() + "] Resetting proxy auth state");
                    }
                    proxyAuthState.reset();
                }
            }

            if (!redirect.headerIterator().hasNext()) {
                final HttpRequest original = state.getMainRequest().getOriginal();
                redirect.setHeaders(original.getAllHeaders());
            }

            final HttpRequestWrapper newRequest = HttpRequestWrapper.wrap(redirect);
            final HttpRoute newRoute = this.routePlanner.determineRoute(newTarget, newRequest, localContext);
            if (!route.equals(newRoute)) {
                handler.releaseConnection();
            }
            handler.setRoute(newRoute);
            handler.setCurrentRequest(newRequest);
            state.setMainRequest(newRequest);
            prepareRequest(state, handler);
        }
    }
    handler.setCurrentResponse(null);
}

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From source file:org.apache.http.impl.nio.client.MainClientExec.java

private void prepareRequest(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws IOException, HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final HttpRequestWrapper currentRequest = handler.getCurrentRequest();
    final HttpRoute route = handler.getRoute();

    final HttpRequest original = currentRequest.getOriginal();
    URI uri = null;/* www .  j  av  a  2 s .  c om*/
    if (original instanceof HttpUriRequest) {
        uri = ((HttpUriRequest) original).getURI();
    } else {
        final String uriString = original.getRequestLine().getUri();
        try {
            uri = URI.create(uriString);
        } catch (final IllegalArgumentException ex) {
            if (this.log.isDebugEnabled()) {
                this.log.debug("Unable to parse '" + uriString + "' as a valid URI; "
                        + "request URI and Host header may be inconsistent", ex);
            }
        }

    }
    currentRequest.setURI(uri);

    // Re-write request URI if needed
    rewriteRequestURI(currentRequest, route);

    HttpHost target = null;
    if (uri != null && uri.isAbsolute() && uri.getHost() != null) {
        target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
    }
    if (target == null) {
        target = route.getTargetHost();
    }

    // Get user info from the URI
    if (uri != null) {
        final String userinfo = uri.getUserInfo();
        if (userinfo != null) {
            final CredentialsProvider credsProvider = localContext.getCredentialsProvider();
            credsProvider.setCredentials(new AuthScope(target), new UsernamePasswordCredentials(userinfo));
        }
    }

    localContext.setAttribute(HttpCoreContext.HTTP_REQUEST, currentRequest);
    localContext.setAttribute(HttpCoreContext.HTTP_TARGET_HOST, target);
    localContext.setAttribute(HttpClientContext.HTTP_ROUTE, route);
    this.httpProcessor.process(currentRequest, localContext);
}

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From source file:org.apache.http.impl.nio.client.MainClientExec.java

private boolean handleConnectResponse(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final RequestConfig config = localContext.getRequestConfig();
    if (config.isAuthenticationEnabled()) {
        final CredentialsProvider credsProvider = localContext.getCredentialsProvider();
        if (credsProvider != null) {
            final HttpRoute route = handler.getRoute();
            final HttpHost proxy = route.getProxyHost();
            final HttpResponse currentResponse = handler.getCurrentResponse();
            final AuthState proxyAuthState = localContext.getProxyAuthState();
            if (this.authenticator.isAuthenticationRequested(proxy, currentResponse, this.proxyAuthStrategy,
                    proxyAuthState, localContext)) {
                return this.authenticator.handleAuthChallenge(proxy, currentResponse, this.proxyAuthStrategy,
                        proxyAuthState, localContext);
            }//  ww  w. j  a  va 2 s . co  m
        }
    }
    return false;
}

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From source file:org.apache.http.impl.nio.client.MainClientExec.java

private boolean needAuthentication(final InternalState state, final AbstractClientExchangeHandler<?> handler)
        throws HttpException {
    final HttpClientContext localContext = state.getLocalContext();
    final CredentialsProvider credsProvider = localContext.getCredentialsProvider();
    if (credsProvider != null) {
        final HttpRoute route = handler.getRoute();
        final HttpResponse currentResponse = handler.getCurrentResponse();
        HttpHost target = localContext.getTargetHost();
        if (target == null) {
            target = route.getTargetHost();
        }//from w w  w. j av  a2 s  .co m
        if (target.getPort() < 0) {
            target = new HttpHost(target.getHostName(), route.getTargetHost().getPort(),
                    target.getSchemeName());
        }
        final AuthState targetAuthState = localContext.getTargetAuthState();
        final AuthState proxyAuthState = localContext.getProxyAuthState();

        final boolean targetAuthRequested = this.authenticator.isAuthenticationRequested(target,
                currentResponse, this.targetAuthStrategy, targetAuthState, localContext);

        HttpHost proxy = route.getProxyHost();
        // if proxy is not set use target host instead
        if (proxy == null) {
            proxy = route.getTargetHost();
        }
        final boolean proxyAuthRequested = this.authenticator.isAuthenticationRequested(proxy, currentResponse,
                this.proxyAuthStrategy, proxyAuthState, localContext);

        if (targetAuthRequested) {
            return this.authenticator.handleAuthChallenge(target, currentResponse, this.targetAuthStrategy,
                    targetAuthState, localContext);
        }
        if (proxyAuthRequested) {
            return this.authenticator.handleAuthChallenge(proxy, currentResponse, this.proxyAuthStrategy,
                    proxyAuthState, localContext);
        }
    }
    return false;
}

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