Example usage for javax.servlet.http HttpServletRequest getHeaders

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getHeaders.

Prototype

public Enumeration<String> getHeaders(String name);

Source Link

Document

Returns all the values of the specified request header as an Enumeration of String objects.

Usage

From source file:org.craftercms.core.util.HttpServletUtils.java

public static Map<String, Object> createHeadersMap(HttpServletRequest request) {
    Map<String, Object> headersMap = new HashMap<String, Object>();
    for (Enumeration headerNameEnum = request.getHeaderNames(); headerNameEnum.hasMoreElements();) {
        String headerName = (String) headerNameEnum.nextElement();
        List<String> headerValues = new ArrayList<String>();

        CollectionUtils.addAll(headerValues, request.getHeaders(headerName));

        if (headerValues.size() == 1) {
            headersMap.put(headerName, headerValues.get(0));
        } else {/*from  w  ww.ja  v  a2 s .  c om*/
            headersMap.put(headerName, headerValues.toArray(new String[headerValues.size()]));
        }
    }

    return headersMap;
}

From source file:com.mirth.connect.connectors.http.HttpMessageConverter.java

public static Map<String, List<String>> convertFieldEnumerationToMap(HttpServletRequest request) {
    Map<String, List<String>> headers = new HashMap<String, List<String>>();

    for (Enumeration<String> enumeration = request.getHeaderNames(); enumeration.hasMoreElements();) {
        String name = enumeration.nextElement();
        Enumeration headerNames = request.getHeaders(name);

        while (headerNames.hasMoreElements()) {
            List<String> list = headers.get(name);

            if (list == null) {
                list = new ArrayList<String>();
                headers.put(name, list);
            }//from ww w. java 2 s  . c o  m

            list.add((String) headerNames.nextElement());
        }
    }

    return headers;
}

From source file:edu.cornell.mannlib.vitro.webapp.web.MiscWebUtils.java

public static void debugPrintHeaders(HttpServletRequest req) {
    Enumeration hnames = req.getHeaderNames();
    while (hnames.hasMoreElements()) {
        String name = (String) hnames.nextElement();
        log.debug("header " + name);
        String value = req.getHeader(name);
        log.debug("    " + value);
        Enumeration values = req.getHeaders(name);
        if (values == null) {
            log.debug("    enumeration was null");
        } else {//from w w  w  . j  av  a  2s.  c o m
            log.debug("    enumeration values");
            while (values.hasMoreElements()) {
                String val = (String) values.nextElement();
                log.debug("    " + value);
            }
        }
    }
}

From source file:org.apache.solr.servlet.cache.HttpCacheHeaderUtil.java

/**
 * Check for etag related conditional headers and set status 
 * //  ww w .ja va 2 s. c  om
 * @return true if no request processing is necessary and HTTP response status has been set, false otherwise.
 * @throws IOException
 */
@SuppressWarnings("unchecked")
public static boolean checkETagValidators(final HttpServletRequest req, final HttpServletResponse resp,
        final Method reqMethod, final String etag) throws IOException {

    // First check If-None-Match because this is the common used header
    // element by HTTP clients
    final List<String> ifNoneMatchList = Collections.list(req.getHeaders("If-None-Match"));
    if (ifNoneMatchList.size() > 0 && isMatchingEtag(ifNoneMatchList, etag)) {
        if (reqMethod == Method.GET || reqMethod == Method.HEAD) {
            sendNotModified(resp);
        } else {
            sendPreconditionFailed(resp);
        }
        return true;
    }

    // Check for If-Match headers
    final List<String> ifMatchList = Collections.list(req.getHeaders("If-Match"));
    if (ifMatchList.size() > 0 && !isMatchingEtag(ifMatchList, etag)) {
        sendPreconditionFailed(resp);
        return true;
    }

    return false;
}

From source file:org.apache.shindig.gadgets.servlet.ServletUtil.java

/**
 * Returns an HttpRequest object encapsulating the servlet request.
 * NOTE: Request parameters are not explicitly taken care of, instead we copy
 * the InputStream and query parameters separately.
 *
 * @param servletReq The http servlet request.
 * @return An HttpRequest object with all the information provided by the
 *   servlet request./* w ww.ja  v  a2 s.  co  m*/
 * @throws IOException In case of errors.
 */
public static HttpRequest fromHttpServletRequest(HttpServletRequest servletReq) throws IOException {
    HttpRequest req = new HttpRequest(new UriBuilder(servletReq).toUri());

    Enumeration<?> headerNames = servletReq.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        Object obj = headerNames.nextElement();
        if (obj instanceof String) {
            String headerName = (String) obj;

            Enumeration<?> headerValues = servletReq.getHeaders(headerName);
            while (headerValues.hasMoreElements()) {
                obj = headerValues.nextElement();
                if (obj instanceof String) {
                    req.addHeader(headerName, (String) obj);
                }
            }
        }
    }

    req.setMethod(servletReq.getMethod());
    if ("POST".equalsIgnoreCase(req.getMethod())) {
        req.setPostBody(servletReq.getInputStream());
    }
    req.setParam(REMOTE_ADDR_KEY, servletReq.getRemoteAddr());
    return req;
}

From source file:org.zoxweb.server.http.servlet.HTTPServletUtil.java

public static List<GetNameValue<String>> extractRequestHeaders(HttpServletRequest req) {
    ArrayList<GetNameValue<String>> ret = new ArrayList<GetNameValue<String>>();

    Enumeration<String> headerNames = req.getHeaderNames();
    for (; headerNames.hasMoreElements();) {
        String headerName = headerNames.nextElement();
        Enumeration<String> headerValues = req.getHeaders(headerName);
        for (; headerValues.hasMoreElements();) {
            ret.add(new NVPair(headerName, headerValues.nextElement()));
        }/*w  ww . j a  va  2 s. c  o  m*/
    }

    return ret;
}

From source file:org.cruxframework.crux.core.server.rest.spi.HttpUtil.java

@SuppressWarnings("unchecked")
public static MultivaluedMap<String, String> extractRequestHeaders(HttpServletRequest request) {
    Headers<String> requestHeaders = new Headers<String>();

    Enumeration<String> headerNames = request.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        String headerName = headerNames.nextElement();
        Enumeration<String> headerValues = request.getHeaders(headerName);
        while (headerValues.hasMoreElements()) {
            String headerValue = headerValues.nextElement();
            // System.out.println("ADDING HEADER: " + headerName +
            // " value: " + headerValue);
            requestHeaders.add(headerName, headerValue);
        }/*from w w  w  .  j ava2  s .  c  o m*/
    }
    return requestHeaders;
}

From source file:com.itude.mobile.mobbl.server.util.HeaderUtil.java

public static void printRequestHeaders(Logger logger, HttpServletRequest request) {
    if (request == null)
        throw new IllegalArgumentException("Request can't be null");
    if (logger == null)
        throw new IllegalArgumentException("Logger can't be null");

    logger.debug("List of request parameters:");

    @SuppressWarnings("unchecked")
    Enumeration<String> requestHeaders = request.getHeaderNames();
    if (requestHeaders != null) {
        while (requestHeaders.hasMoreElements()) {
            String header = requestHeaders.nextElement();

            @SuppressWarnings("unchecked")
            Enumeration<String> headers = request.getHeaders(header);
            if (headers != null) {
                while (headers.hasMoreElements())
                    logger.debug(header + ":" + headers.nextElement());
            }/*w  w w .  j  av  a2 s  . c  o  m*/
        }
    }
}

From source file:com.tek271.reverseProxy.servlet.ProxyFilter.java

private static void addCustomGetHeaders(HttpServletRequest request, HttpGet httpGet) {
    httpGet.addHeader("preferred-role", request.getHeader("preferred-role"));
    httpGet.addHeader("X-Source", request.getHeader("X-Source"));
    Enumeration headerNames = request.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        String headerName = (String) headerNames.nextElement();
        Enumeration enumerationOfHeaderValues = request.getHeaders(headerName);
        while (enumerationOfHeaderValues.hasMoreElements()) {
            String headerValue = (String) enumerationOfHeaderValues.nextElement();
            if (headerName.equalsIgnoreCase("accept")) {
                httpGet.setHeader(headerName, headerValue);
            }/*from  w w w.j a v  a  2 s  .  co  m*/
        }

    }
}

From source file:org.ambraproject.rhino.rest.LoggingInterceptor.java

/**
 * Build a message describing a request.
 *
 * @param request the request to describe
 * @return the description//from  www  . ja  va  2 s . c  om
 */
private static String describe(HttpServletRequest request) {
    StringBuilder message = new StringBuilder();
    message.append(request.getMethod()).append(' ').append(request.getRequestURI());
    String queryString = request.getQueryString();
    if (queryString != null) {
        message.append(" ? ").append(queryString);
    }
    message.append('\n');

    // Append a list of headers
    for (Enumeration headerNames = request.getHeaderNames(); headerNames.hasMoreElements();) {
        String headerName = (String) headerNames.nextElement();
        message.append(INDENT).append(asStringLiteral(headerName)).append(": ");
        Enumeration<?> headers = request.getHeaders(headerName);
        Iterator<String> headerStrings = Iterators.transform(Iterators.forEnumeration(headers),
                LoggingInterceptor::asStringLiteral);
        JOINER.appendTo(message, headerStrings);
        message.append('\n');
    }

    return message.toString();
}