Example usage for org.apache.commons.httpclient HostConfiguration toString

Introduction

In this page you can find the example usage for org.apache.commons.httpclient HostConfiguration toString.

Prototype

public String toString() 

Source Link

Usage

From source file:org.tuckey.web.filters.urlrewrite.RequestProxy.java

/**
 * This method performs the proxying of the request to the target address.
 *
 * @param target     The target address. Has to be a fully qualified address. The request is send as-is to this address.
 * @param hsRequest  The request data which should be send to the
 * @param hsResponse The response data which will contain the data returned by the proxied request to target.
 * @throws java.io.IOException Passed on from the connection logic.
 *//* ww  w  .  j ava  2 s. co m*/
public static void execute(final String target, final HttpServletRequest hsRequest,
        final HttpServletResponse hsResponse) throws IOException {
    if (log.isInfoEnabled()) {
        log.info("execute, target is " + target);
        log.info("response commit state: " + hsResponse.isCommitted());
    }

    if (StringUtils.isBlank(target)) {
        log.error("The target address is not given. Please provide a target address.");
        return;
    }

    log.info("checking url");
    final URL url;
    try {
        url = new URL(target);
    } catch (MalformedURLException e) {
        log.error("The provided target url is not valid.", e);
        return;
    }

    log.info("seting up the host configuration");

    final HostConfiguration config = new HostConfiguration();

    ProxyHost proxyHost = getUseProxyServer((String) hsRequest.getAttribute("use-proxy"));
    if (proxyHost != null)
        config.setProxyHost(proxyHost);

    final int port = url.getPort() != -1 ? url.getPort() : url.getDefaultPort();
    config.setHost(url.getHost(), port, url.getProtocol());

    if (log.isInfoEnabled())
        log.info("config is " + config.toString());

    final HttpMethod targetRequest = setupProxyRequest(hsRequest, url);
    if (targetRequest == null) {
        log.error("Unsupported request method found: " + hsRequest.getMethod());
        return;
    }

    //perform the reqeust to the target server
    final HttpClient client = new HttpClient(new SimpleHttpConnectionManager());
    if (log.isInfoEnabled()) {
        log.info("client state" + client.getState());
        log.info("client params" + client.getParams().toString());
        log.info("executeMethod / fetching data ...");
    }

    final int result;
    if (targetRequest instanceof EntityEnclosingMethod) {
        final RequestProxyCustomRequestEntity requestEntity = new RequestProxyCustomRequestEntity(
                hsRequest.getInputStream(), hsRequest.getContentLength(), hsRequest.getContentType());
        final EntityEnclosingMethod entityEnclosingMethod = (EntityEnclosingMethod) targetRequest;
        entityEnclosingMethod.setRequestEntity(requestEntity);
        result = client.executeMethod(config, entityEnclosingMethod);

    } else {
        result = client.executeMethod(config, targetRequest);
    }

    //copy the target response headers to our response
    setupResponseHeaders(targetRequest, hsResponse);

    InputStream originalResponseStream = targetRequest.getResponseBodyAsStream();
    //the body might be null, i.e. for responses with cache-headers which leave out the body
    if (originalResponseStream != null) {
        OutputStream responseStream = hsResponse.getOutputStream();
        copyStream(originalResponseStream, responseStream);
    }

    log.info("set up response, result code was " + result);
}

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