Example usage for org.apache.commons.httpclient HttpMethod getResponseBodyAsStream

List of usage examples for org.apache.commons.httpclient HttpMethod getResponseBodyAsStream

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Introduction

In this page you can find the example usage for org.apache.commons.httpclient HttpMethod getResponseBodyAsStream.

Prototype

public abstract InputStream getResponseBodyAsStream() throws IOException;

Source Link

Usage

From source file:org.deegree.portal.standard.routing.control.ValidateGeographicNameListener.java

public void actionPerformed(WebEvent event, ResponseHandler responseHandler) throws IOException {

    // 1.read out request and configuration parameters

    // address of the nominatim web application
    String address = getInitParameter("address");
    // location name we will send to nominatim
    String queryString = (String) event.getParameter().get("QUERYSTRING");
    // we use the bounding box of the current map to limit nominatim search area
    // the will make searches faster and reduce number of useless matches
    String searchBox = null;//from w w w.ja va2s  .com
    try {
        searchBox = getSearchBox();
    } catch (Exception e) {
        LOG.logError(e.getMessage(), e);
        ExceptionBean eb = new ExceptionBean(getClass().getName(), e.getMessage());
        responseHandler.writeAndClose(true, eb);
        return;
    }

    // 2.create a q request against Nominatim gazetteer service
    queryString = "q=" + URLEncoder.encode(queryString, "UTF-8")
            + "&bounded=1&osm_type=N&format=xml&limit=50&viewbox=" + searchBox;
    LOG.logDebug("Nominatim search query: ", address + "?" + queryString);

    // 3.perform request against Nominatim gazetteer service
    HttpMethod method = HttpUtils.performHttpGet(address, queryString, 60000, null, null, null);

    // 4.receive the result and parse it as an XML document
    InputStreamReader isr = new InputStreamReader(method.getResponseBodyAsStream(), "UTF-8");
    XMLFragment xml = new XMLFragment();
    try {
        xml.load(isr, address);
    } catch (Exception e) {
        LOG.logError(e.getMessage(), e);
        ExceptionBean eb = new ExceptionBean(getClass().getName(), e.getMessage());
        responseHandler.writeAndClose(true, eb);
        return;
    } finally {
        isr.close();
    }

    if (LOG.getLevel() == ILogger.LOG_DEBUG) {
        LOG.logDebug(xml.getAsPrettyString());
    }

    // 5. parse the content of the result document and create response to the client
    //
    // extract required information from the nominatim result XML. This is:
    // - names of the locations (we possibly have more than one matching location)
    // - bounding box of the locations
    // Form the bounding box we can calculate its center that will be used for
    // displaying the location and calculating a route
    List<String[]> result = new ArrayList<String[]>(50);
    HttpSession session = ((HttpServletRequest) getRequest()).getSession(true);
    ViewContext vc = (ViewContext) session.getAttribute(Constants.CURRENTMAPCONTEXT);
    CoordinateSystem modelCrs = vc.getGeneral().getBoundingBox()[0].getCoordinateSystem();
    GeoTransformer gt = new GeoTransformer(modelCrs);
    try {
        NamespaceContext nsc = CommonNamespaces.getNamespaceContext();
        List<Node> nodes = XMLTools.getNodes(xml.getRootElement(), "place", nsc);
        for (Node node : nodes) {
            String place = XMLTools.getNodeAsString(node, "@display_name", nsc, "");
            // get location of an object in geographic and map CRS
            double lat = XMLTools.getNodeAsDouble(node, "@lat", nsc, 0);
            double lon = XMLTools.getNodeAsDouble(node, "@lon", nsc, 0);
            // location coordinates mst be available in:
            // - WGS84 for route calculation
            // - in CRS of current map model for displaying in the client
            Point point = GeometryFactory.createPoint(lon, lat, CRSFactory.EPSG_4326);
            Point pointMap = point;
            if (!modelCrs.equals(CRSFactory.EPSG_4326)) {
                pointMap = (Point) gt.transform(point);
            }
            String p = point.getX() + " " + point.getY();
            String pm = pointMap.getX() + " " + pointMap.getY();
            // add location to the result array
            result.add(new String[] { place, p, pm });
        }
    } catch (Exception e) {
        LOG.logError(e.getMessage(), e);
        ExceptionBean eb = new ExceptionBean(getClass().getName(), e.getMessage());
        responseHandler.writeAndClose(true, eb);
        return;
    }

    // 6.return response back to the client
    String charEnc = getRequest().getCharacterEncoding();
    if (charEnc == null) {
        charEnc = Charset.defaultCharset().displayName();
    }
    responseHandler.setContentType("application/json; charset=" + charEnc);
    responseHandler.writeAndClose(false, result);
}

From source file:org.deegree.portal.standard.wms.control.GetFeatureInfoListener.java

private Table readDataFromWFS(Map<String, Object> parameter, String request, String url)
        throws HttpException, IOException, SAXException, XMLParsingException, TransformerException {

    XMLFragment xml = new XMLFragment();
    HttpMethod method = HttpUtils.performHttpGet(url, request, timeout, null, null, null);
    xml.load(method.getResponseBodyAsStream(), url);

    if (xslt != null) {
        // if a XSLT for transforming get feature info results has been defined:
        // perform a transformation to ensure that feature info result is a valid
        // GML document
        xml = xslt.transform(xml);// w  w w  . ja  v a 2  s .c  o m
    }

    if (LOG.isDebug()) {
        LOG.logDebug("feature info performed : ", url + " " + request);
        LOG.logDebug("feature info result : ", xml.getAsPrettyString());
    }

    NamespaceContext nsc = CommonNamespaces.getNamespaceContext();
    List<Element> featureMember = XMLTools.getElements(xml.getRootElement(), "//gml:featureMember", nsc);
    if (featureMember.size() == 0) {
        featureMember = XMLTools.getElements(xml.getRootElement(), "//gml3_2:featureMember", nsc);
    }

    // get column header
    List<String> header = new ArrayList<String>();
    for (int i = 0; i < featureMember.size(); i++) {
        // get feature; there should be exactly one
        ElementList el = XMLTools.getChildElements(featureMember.get(i));
        if (el.getLength() > 0 && el.item(0) != null) {
            // get properties
            ElementList el2 = XMLTools.getChildElements(el.item(0));
            for (int j = 0; j < el2.getLength(); j++) {
                String name = el2.item(j).getLocalName();
                if (!header.contains(name) && !"boundedBy".equalsIgnoreCase(name)) {
                    header.add(name);
                }
            }
        }
    }

    // remember index positions (column number) for each property (name)
    Map<String, Integer> map = new HashMap<String, Integer>();
    for (int i = 0; i < header.size(); i++) {
        map.put(header.get(i), new Integer(i));
    }

    // get column data
    String[][] data = new String[featureMember.size()][];
    for (int i = 0; i < featureMember.size(); i++) {
        data[i] = new String[header.size()];
        // get feature; there should be exactly one
        ElementList el = XMLTools.getChildElements(featureMember.get(i));
        if (el.getLength() > 0 && el.item(0) != null) {
            // get properties
            ElementList el2 = XMLTools.getChildElements(el.item(0));
            for (int j = 0; j < el2.getLength(); j++) {
                String name = el2.item(j).getLocalName();
                if (!"boundedBy".equalsIgnoreCase(name)) {
                    int idx = map.get(name);
                    data[i][idx] = XMLTools.getStringValue(el2.item(j));
                }
            }
        }
    }
    Table table = new Table();
    table.setName((String) parameter.get("title"));
    table.setColumns(header.toArray(new String[header.size()]));
    table.setData(data);

    return table;
}

From source file:org.deegree.tools.metadata.InspireValidator.java

/**
 * reads a number of random records from a CSW and validates them against INSPIRE metadata validator
 * //from  w w  w  .  jav  a 2  s .  c o m
 * @param mr
 *            number of records to be tested
 */
public void runRandomQuery(String mr) {
    int maxQueries = 50;
    if (mr != null) {
        maxQueries = Integer.parseInt(mr);
        LOG.logInfo(Messages.get("m1", mr));
    } else {
        LOG.logInfo(Messages.get("m2", mr));
    }
    try {
        int max = getNumberOfAvailableRecords();
        if (maxQueries > max) {
            maxQueries = max;
            LOG.logInfo(Messages.get("m3", max));
        }
        // create base GetRecords request without constraint but with startPosition and maxRecords = 1
        String s = Messages.get("getRecordsWithoutFilter");
        XMLFragment request = new XMLFragment(new StringReader(s), XMLFragment.DEFAULT_URL);
        Random random = new Random();
        outputWriter = new PrintWriter(new File(outputFile));
        for (int i = 0; i < maxQueries; i++) {
            // set index of record to read
            Node node = XMLTools.getNode(request.getRootElement(), Messages.get("xPathStartPosition"), nsc);
            node.setNodeValue(Integer.toString(random.nextInt(max) + 1));

            HttpMethod m = HttpUtils.performHttpPost(cswAddress, request, 60000, null, null, null);
            XMLFragment xml = new XMLFragment();
            xml.load(m.getResponseBodyAsStream(), cswAddress);
            List<org.w3c.dom.Element> list = XMLTools.getElements(xml.getRootElement(),
                    Messages.get("xPathMetadata"), nsc);
            System.out.println(Messages.get("m4", i + 1, maxQueries));
            outputWriter.println("---------------------------------------------------------------------");
            String id = XMLTools.getNodeAsString(list.get(0), Messages.get("xPathIdentifier"), nsc, "none");
            outputWriter.println(Messages.get("m5", id));
            validateINSPIRE(list.get(0));
        }
        System.out.println();
    } catch (Exception e) {
        LOG.logError(e);
    } finally {
        if (outputWriter != null) {
            outputWriter.flush();
            outputWriter.close();
        }
    }
    System.out.println(Messages.get("m6", new File(outputFile).getAbsolutePath()));
}

From source file:org.deegree.tools.metadata.InspireValidator.java

/**
 * @return//from w w  w  .j a  v  a  2  s . co  m
 * @throws IOException
 * @throws SAXException
 */
private int getNumberOfAvailableRecords() throws Exception {
    String s = Messages.get("getRecordsHits");
    XMLFragment xml = new XMLFragment(new StringReader(s), XMLFragment.DEFAULT_URL);
    HttpMethod m = HttpUtils.performHttpPost(cswAddress, xml, 60000, null, null, null);
    XMLFragment result = new XMLFragment();
    result.load(m.getResponseBodyAsStream(), cswAddress);
    return XMLTools.getNodeAsInt(result.getRootElement(), Messages.get("xPathNumberOfRecordsMatched"), nsc, 0);
}

From source file:org.deegree.tools.metadata.InspireValidator.java

/**
 * reads a records from a CSW defined by a GetRecord request and validates them against INSPIRE metadata validator
 * // w w  w  . ja  v  a2s  . c o m
 * @param queryFile
 *            reference to GetRecords request
 */
public void runDefinedQuery(String queryFile) {
    try {
        query = new XMLFragment(new File(queryFile));
        HttpMethod m = HttpUtils.performHttpPost(cswAddress, query, 60000, null, null, null);
        XMLFragment xml = new XMLFragment();
        xml.load(m.getResponseBodyAsStream(), cswAddress);
        List<org.w3c.dom.Element> list = XMLTools.getElements(xml.getRootElement(),
                Messages.get("xPathMetadata"), nsc);
        outputWriter = new PrintWriter(new File(outputFile));
        int cnt = 1;
        for (org.w3c.dom.Element element : list) {
            System.out.println(Messages.get("m7", cnt, list.size()));
            outputWriter.println("---------------------------------------------------------------------");
            String id = XMLTools.getNodeAsString(element, Messages.get("xPathIdentifier"), nsc, "none");
            outputWriter.println(Messages.get("m8", id));
            validateINSPIRE(element);
            cnt++;
        }
        System.out.println();
    } catch (Exception e) {
        LOG.logError(e);
    } finally {
        if (outputWriter != null) {
            outputWriter.flush();
            outputWriter.close();
        }
    }
    System.out.println("report stored at: " + new File(outputFile).getAbsolutePath());
}

From source file:org.devproof.portal.module.bookmark.service.SynchronizeServiceImpl.java

@Override
public DeliciousBean getDataFromDelicious(String username, String password, String tags) {
    logger.debug("Retrieve data from delicious");
    HttpClient httpClient = new HttpClient();
    HttpClientParams httpClientParams = new HttpClientParams();
    DefaultHttpMethodRetryHandler defaultHttpMethodRetryHandler = new DefaultHttpMethodRetryHandler(0, false);
    httpClientParams.setParameter("User-Agent", BookmarkConstants.USER_AGENT);
    httpClientParams.setParameter(HttpClientParams.RETRY_HANDLER, defaultHttpMethodRetryHandler);
    httpClient.setParams(httpClientParams);
    httpClient.getState().setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
    String urlTag = "";
    if (StringUtils.isNotEmpty(tags)) {
        urlTag = "tag=" + tags;
    }/*from   ww w . ja va 2s .c o m*/
    HttpMethod method = new GetMethod(BookmarkConstants.DELICIOUS_API + urlTag);
    method.setDoAuthentication(true);
    DeliciousBean bean = new DeliciousBean();
    try {
        int httpCode = httpClient.executeMethod(method);
        bean.setHttpCode(httpCode);
        if (!bean.hasError()) {
            XStream xstream = new XStream(new DomDriver());
            xstream.alias("posts", DeliciousBean.class);
            xstream.alias("post", DeliciousPostBean.class);
            xstream.addImplicitCollection(DeliciousBean.class, "posts");
            xstream.useAttributeFor(String.class);
            xstream.useAttributeFor(Integer.class);
            bean = (DeliciousBean) xstream.fromXML(method.getResponseBodyAsStream());
            bean.setHttpCode(httpCode);
        } else {
            bean.setErrorMessage("Unknown Error: Http Status: " + httpCode);
        }
    } catch (HttpException e) {
        bean.setErrorMessage(e.getMessage());
    } catch (IOException e) {
        bean.setErrorMessage(e.getMessage());
    }
    method.releaseConnection();
    return bean;
}

From source file:org.eclipse.e4.opensocial.container.internal.browserHandlers.core.MakeXmlHttpRequestHandler.java

protected String retrieveResponseBody(HttpMethod httpMethod) throws IOException, UnsupportedEncodingException {

    String responseBodyAsString = "";
    InputStream bodyAsStream = httpMethod.getResponseBodyAsStream();
    BufferedReader reader = null;

    StringBuilder sb = new StringBuilder();
    String line;/*ww  w  . j a v  a2  s.com*/
    try {
        reader = new BufferedReader(new InputStreamReader(bodyAsStream, "UTF-8"));
        while ((line = reader.readLine()) != null) {
            sb.append(line);
        }
    } finally {
        if (reader != null)
            reader.close();
    }

    responseBodyAsString = sb.toString();
    return responseBodyAsString;
}

From source file:org.eclipse.e4.ui.internal.gadgets.opensocial.browserfunctions.MakeXmlHttpRequest.java

protected String retrieveResponseBody(HttpMethod httpMethod) throws IOException, UnsupportedEncodingException {

    String responseBodyAsString = "";
    InputStream bodyAsStream = httpMethod.getResponseBodyAsStream();

    StringBuilder sb = new StringBuilder();
    String line;//from   ww  w.ja v a  2s . co m
    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(bodyAsStream, "UTF-8"));
        while ((line = reader.readLine()) != null) {
            sb.append(line);
        }
    } finally {
        bodyAsStream.close();
    }

    responseBodyAsString = sb.toString();
    return responseBodyAsString;
}

From source file:org.eclipse.smarthome.binding.fsinternetradio.internal.radio.FrontierSiliconRadioConnection.java

/**
 * Perform login/establish a new session. Uses the PIN number and when successful saves the assigned sessionID for
 * future requests.//from   ww  w.ja  v  a 2 s. c o m
 *
 * @return <code>true</code> if login was successful; <code>false</code> otherwise.
 * @throws IOException if communication with the radio failed, e.g. because the device is not reachable.
 */
public boolean doLogin() throws IOException {
    isLoggedIn = false; // reset login flag

    if (httpClient == null) {
        httpClient = new HttpClient();
    }

    final String url = "http://" + hostname + ":" + port + "/fsapi/CREATE_SESSION?pin=" + pin;

    logger.trace("opening URL:" + url);

    final HttpMethod method = new GetMethod(url);
    method.getParams().setSoTimeout(SOCKET_TIMEOUT);
    method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler(3, false));

    try {
        final int statusCode = httpClient.executeMethod(method);
        if (statusCode != HttpStatus.SC_OK) {
            logger.debug("Communication with radio failed: " + method.getStatusLine());
            if (method.getStatusCode() == 403) {
                throw new RuntimeException("Radio does not allow connection, maybe wrong pin?");
            }
            throw new IOException("Communication with radio failed, return code: " + statusCode);
        }

        final String responseBody = IOUtils.toString(method.getResponseBodyAsStream());
        if (!responseBody.isEmpty()) {
            logger.trace("login response: " + responseBody);
        }

        final FrontierSiliconRadioApiResult result = new FrontierSiliconRadioApiResult(responseBody);
        if (result.isStatusOk()) {
            logger.trace("login successful");
            sessionId = result.getSessionId();
            isLoggedIn = true;
            return true; // login successful :-)
        }

    } catch (HttpException he) {
        logger.debug("Fatal protocol violation: {}", he.toString());
        throw he;
    } catch (IOException ioe) {
        logger.debug("Fatal transport error: {}", ioe.toString());
        throw ioe;
    } finally {
        method.releaseConnection();
    }
    return false; // login not successful
}

From source file:org.eclipse.smarthome.binding.fsinternetradio.internal.radio.FrontierSiliconRadioConnection.java

/**
 * Performs a request to the radio with addition parameters.
 *
 * Typically used for changing parameters.
 *
 * @param REST//w  w  w  .java  2 s . c o m
 *            API requestString, e.g. "SET/netRemote.sys.power"
 * @param params
 *            , e.g. "value=1"
 * @return request result
 * @throws IOException if the request failed.
 */
public FrontierSiliconRadioApiResult doRequest(String requestString, String params) throws IOException {

    // 3 retries upon failure
    for (int i = 0; i < 2; i++) {
        if (!isLoggedIn && !doLogin()) {
            continue; // not logged in and login was not successful - try again!
        }

        final String url = "http://" + hostname + ":" + port + "/fsapi/" + requestString + "?pin=" + pin
                + "&sid=" + sessionId + (params == null || params.trim().length() == 0 ? "" : "&" + params);

        logger.trace("calling url: '" + url + "'");

        final HttpMethod method = new GetMethod(url);
        method.getParams().setSoTimeout(SOCKET_TIMEOUT);
        method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
                new DefaultHttpMethodRetryHandler(2, false));

        try {

            final int statusCode = httpClient.executeMethod(method);
            if (statusCode != HttpStatus.SC_OK) {
                logger.warn("Method failed: " + method.getStatusLine());
                isLoggedIn = false;
                method.releaseConnection();
                continue;
            }

            final String responseBody = IOUtils.toString(method.getResponseBodyAsStream());
            if (!responseBody.isEmpty()) {
                logger.trace("got result: " + responseBody);
            } else {
                logger.debug("got empty result");
                isLoggedIn = false;
                method.releaseConnection();
                continue;
            }

            final FrontierSiliconRadioApiResult result = new FrontierSiliconRadioApiResult(responseBody);
            if (result.isStatusOk()) {
                return result;
            }

            isLoggedIn = false;
            method.releaseConnection();
            continue; // try again
        } catch (HttpException he) {
            logger.error("Fatal protocol violation: {}", he.toString());
            isLoggedIn = false;
            throw he;
        } catch (IOException ioe) {
            logger.error("Fatal transport error: {}", ioe.toString());
            throw ioe;
        } finally {
            method.releaseConnection();
        }
    }
    isLoggedIn = false; // 3 tries failed. log in again next time, maybe our session went invalid (radio restarted?)
    return null;
}