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.jasig.portlet.weather.dao.worldwide.WorldWeatherOnlineDaoImpl.java

public Collection<Location> find(String location) {
    final String url = FIND_URL.replace("@KEY@", key).replace("@QUERY@",
            QuietUrlCodec.encode(location, Constants.URL_ENCODING));

    HttpMethod getMethod = new GetMethod(url);
    InputStream inputStream = null;
    try {/*from  w  ww .j a  v a2  s .  c o m*/
        // Execute the method.
        int statusCode = httpClient.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            final String statusText = getMethod.getStatusText();
            throw new DataRetrievalFailureException(
                    "get of '" + url + "' failed with status '" + statusCode + "' due to '" + statusText + "'");
        }

        // Read the response body
        inputStream = getMethod.getResponseBodyAsStream();

        List<Location> locations = deserializeSearchResults(inputStream);

        return locations;

    } catch (HttpException e) {
        throw new RuntimeException(
                "http protocol exception while getting data from weather service from: " + url, e);
    } catch (IOException e) {
        throw new RuntimeException("IO exception while getting data from weather service from: " + url, e);
    } catch (JAXBException e) {
        throw new RuntimeException("Parsing exception while getting data from weather service from: " + url, e);
    } finally {
        //try to close the inputstream
        IOUtils.closeQuietly(inputStream);
        //release the connection
        getMethod.releaseConnection();
    }
}

From source file:org.jasig.portlet.weather.dao.worldwide.WorldWeatherOnlineDaoImpl.java

protected Object getAndDeserialize(String url, TemperatureUnit unit) {
    HttpMethod getMethod = new GetMethod(url);
    InputStream inputStream = null;
    try {//from w ww  .  j  a v  a  2  s.  com
        // Execute the method.
        int statusCode = httpClient.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            final String statusText = getMethod.getStatusText();
            throw new DataRetrievalFailureException(
                    "get of '" + url + "' failed with status '" + statusCode + "' due to '" + statusText + "'");
        }

        // Read the response body
        inputStream = getMethod.getResponseBodyAsStream();

        Weather weather = deserializeWeatherResult(inputStream, unit);

        return weather;

    } catch (HttpException e) {
        throw new RuntimeException(
                "http protocol exception while getting data from weather service from: " + url, e);
    } catch (IOException e) {
        throw new RuntimeException("IO exception while getting data from weather service from: " + url, e);
    } catch (JAXBException e) {
        throw new RuntimeException("Parsing exception while getting data from weather service from: " + url, e);
    } catch (ParseException e) {
        throw new RuntimeException("Parsing exception while getting data from weather service from: " + url, e);
    } finally {
        //try to close the inputstream
        IOUtils.closeQuietly(inputStream);
        //release the connection
        getMethod.releaseConnection();
    }
}

From source file:org.jasig.portlet.weather.dao.yahoo.YahooWeatherDaoImpl.java

public Collection<Location> find(String location) {
    if ((key == null) || (key.length() == 0)) {
        MessageSourceResolvable resolvable = new DefaultMessageSourceResolvable(
                new String[] { ERR_API_MISSING_KEY, ERR_GENERAL_KEY });
        throw new InvalidConfigurationException(messageSource.getMessage(resolvable, Locale.getDefault()));
    }/* w  w w  .  j  a  va  2s.co m*/

    final String url = FIND_URL.replace("@KEY@", key).replace("@QUERY@",
            QuietUrlCodec.encode(location, Constants.URL_ENCODING));

    HttpMethod getMethod = new GetMethod(url);
    InputStream inputStream = null;
    try {
        // Execute the method.
        int statusCode = httpClient.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            final String statusText = getMethod.getStatusText();
            throw new DataRetrievalFailureException(
                    "get of '" + url + "' failed with status '" + statusCode + "' due to '" + statusText + "'");
        }

        // Read the response body
        inputStream = getMethod.getResponseBodyAsStream();

        List<Location> locations = locationParsingService.parseLocations(inputStream);

        return locations;

    } catch (HttpException e) {
        throw new RuntimeException(
                "http protocol exception while getting data from weather service from: " + url, e);
    } catch (IOException e) {
        throw new RuntimeException("IO exception while getting data from weather service from: " + url, e);
    } finally {
        //try to close the inputstream
        IOUtils.closeQuietly(inputStream);
        //release the connection
        getMethod.releaseConnection();
    }
}

From source file:org.jasig.portlet.weather.dao.yahoo.YahooWeatherDaoImpl.java

protected Object getAndDeserialize(String url) {
    HttpMethod getMethod = new GetMethod(url);
    InputStream inputStream = null;
    try {//from   ww  w.  ja v  a2s .co  m
        // Execute the method.
        int statusCode = httpClient.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            final String statusText = getMethod.getStatusText();
            throw new DataRetrievalFailureException(
                    "get of '" + url + "' failed with status '" + statusCode + "' due to '" + statusText + "'");
        }

        // Read the response body
        inputStream = getMethod.getResponseBodyAsStream();
        return weatherParsingService.parseWeather(inputStream);
    } catch (HttpException e) {
        throw new RuntimeException(
                "http protocol exception while getting data from weather service from: " + url, e);
    } catch (IOException e) {
        throw new RuntimeException("IO exception while getting data from weather service from: " + url, e);
    } finally {
        //try to close the inputstream
        IOUtils.closeQuietly(inputStream);
        //release the connection
        getMethod.releaseConnection();
    }
}

From source file:org.jboss.orion.openshift.server.proxy.JsonProxyServlet.java

/**
 * Executes the {@link HttpMethod} passed in and sends the proxy response
 * back to the client via the given {@link javax.servlet.http.HttpServletResponse}
 *
 * @param proxyDetails/*  w  w  w  . ja v a  2  s .c o  m*/
 * @param httpMethodProxyRequest An object representing the proxy request to be made
 * @param httpServletResponse    An object by which we can send the proxied
 *                               response back to the client
 * @throws java.io.IOException            Can be thrown by the {@link HttpClient}.executeMethod
 * @throws javax.servlet.ServletException Can be thrown to indicate that another error has occurred
 */
private void executeProxyRequest(ProxyDetails proxyDetails, HttpMethod httpMethodProxyRequest,
        HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
        throws IOException, ServletException {
    httpMethodProxyRequest.setDoAuthentication(false);
    httpMethodProxyRequest.setFollowRedirects(false);

    // Create a default HttpClient
    HttpClient httpClient = proxyDetails.createHttpClient(httpMethodProxyRequest);

    // Execute the request
    int intProxyResponseCode = 500;
    try {
        intProxyResponseCode = httpClient.executeMethod(httpMethodProxyRequest);
    } catch (Exception e) {
        e.printStackTrace();
    }

    // Check if the proxy response is a redirect
    // The following code is adapted from org.tigris.noodle.filters.CheckForRedirect
    // Hooray for open source software
    if (intProxyResponseCode >= HttpServletResponse.SC_MULTIPLE_CHOICES /* 300 */
            && intProxyResponseCode < HttpServletResponse.SC_NOT_MODIFIED /* 304 */) {
        String stringStatusCode = Integer.toString(intProxyResponseCode);
        String stringLocation = httpMethodProxyRequest.getResponseHeader(STRING_LOCATION_HEADER).getValue();
        if (stringLocation == null) {
            throw new ServletException("Received status code: " + stringStatusCode + " but no "
                    + STRING_LOCATION_HEADER + " header was found in the response");
        }
        // Modify the redirect to go to this proxy servlet rather that the proxied host
        String stringMyHostName = httpServletRequest.getServerName();
        if (httpServletRequest.getServerPort() != 80) {
            stringMyHostName += ":" + httpServletRequest.getServerPort();
        }
        stringMyHostName += httpServletRequest.getContextPath();
        httpServletResponse.sendRedirect(stringLocation
                .replace(proxyDetails.getProxyHostAndPort() + proxyDetails.getProxyPath(), stringMyHostName));
        return;
    } else if (intProxyResponseCode == HttpServletResponse.SC_NOT_MODIFIED) {
        // 304 needs special handling.  See:
        // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304
        // We get a 304 whenever passed an 'If-Modified-Since'
        // header and the data on disk has not changed; server
        // responds w/ a 304 saying I'm not going to send the
        // body because the file has not changed.
        httpServletResponse.setIntHeader(STRING_CONTENT_LENGTH_HEADER_NAME, 0);
        httpServletResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }

    // Pass the response code back to the client
    httpServletResponse.setStatus(intProxyResponseCode);

    // Pass response headers back to the client
    Header[] headerArrayResponse = httpMethodProxyRequest.getResponseHeaders();
    for (Header header : headerArrayResponse) {
        if (!ProxySupport.isHopByHopHeader(header.getName())) {
            if (ProxySupport.isSetCookieHeader(header)) {
                HttpProxyRule proxyRule = proxyDetails.getProxyRule();
                String setCookie = ProxySupport.replaceCookieAttributes(header.getValue(),
                        proxyRule.getCookiePath(), proxyRule.getCookieDomain());
                httpServletResponse.setHeader(header.getName(), setCookie);
            } else {
                httpServletResponse.setHeader(header.getName(), header.getValue());
            }
        }
    }

    // check if we got data, that is either the Content-Length > 0
    // or the response code != 204
    int code = httpMethodProxyRequest.getStatusCode();
    boolean noData = code == HttpStatus.SC_NO_CONTENT;
    if (!noData) {
        String length = httpServletRequest.getHeader(STRING_CONTENT_LENGTH_HEADER_NAME);
        if (length != null && "0".equals(length.trim())) {
            noData = true;
        }
    }

    if (!noData) {
        // Send the content to the client
        InputStream inputStreamProxyResponse = httpMethodProxyRequest.getResponseBodyAsStream();
        BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStreamProxyResponse);
        OutputStream outputStreamClientResponse = httpServletResponse.getOutputStream();
        int intNextByte;
        while ((intNextByte = bufferedInputStream.read()) != -1) {
            outputStreamClientResponse.write(intNextByte);
        }
    }
}

From source file:org.jboss.web.loadbalancer.Loadbalancer.java

protected void copyServerResponse(HttpServletResponse response, HttpMethod method) throws IOException {

    InputStream bodyStream = method.getResponseBodyAsStream();

    // any response?
    if (bodyStream == null) {
        log.debug("No request body");
        return;/*from  www .j  a  v  a 2  s  . co  m*/
    }

    byte[] buffer = new byte[2048];
    int numBytes;
    OutputStream out = response.getOutputStream();

    // copy the response
    while ((numBytes = bodyStream.read(buffer)) != -1) {
        out.write(buffer, 0, numBytes);
        if (log.isDebugEnabled()) {
            log.debug("Copied " + numBytes + " bytes");
        }
    }
}

From source file:org.jetbrains.tfsIntegration.webservice.WebServiceHelper.java

private static InputStream getInputStream(HttpMethod method) throws IOException {
    Header contentType = method.getResponseHeader(HTTPConstants.HEADER_CONTENT_TYPE);
    if (contentType != null && CONTENT_TYPE_GZIP.equalsIgnoreCase(contentType.getValue())) {
        return new GZIPInputStream(method.getResponseBodyAsStream());
    } else {//from w w w  . j  a  v  a 2s  .com
        return method.getResponseBodyAsStream();
    }
}

From source file:org.jivesoftware.util.HttpClientWithTimeoutFeedFetcher.java

/**
* @param urlStr/*from w  ww  . ja  v  a  2 s  .c o  m*/
* @param method
* @return SyndFeed or None
* @throws IOException
* @throws HttpException
* @throws FetcherException
* @throws FeedException
*/
private static SyndFeed retrieveFeed(String urlStr, HttpMethod method)
        throws IOException, HttpException, FetcherException, FeedException {

    InputStream stream = null;
    if ((method.getResponseHeader("Content-Encoding") != null)
            && ("gzip".equalsIgnoreCase(method.getResponseHeader("Content-Encoding").getValue()))) {
        stream = new GZIPInputStream(method.getResponseBodyAsStream());
    } else {
        stream = method.getResponseBodyAsStream();
    }
    try {
        XmlReader reader = null;
        if (method.getResponseHeader("Content-Type") != null) {
            reader = new XmlReader(stream, method.getResponseHeader("Content-Type").getValue(), true);
        } else {
            reader = new XmlReader(stream, true);
        }
        return new SyndFeedInput().build(reader);
    } finally {
        if (stream != null) {
            stream.close();
        }
    }
}

From source file:org.kalypso.util.net.URLGetter.java

/**
 * @see org.kalypso.contribs.eclipse.jface.operation.ICoreRunnableWithProgress#execute(org.eclipse.core.runtime.IProgressMonitor)
 *///from w  ww  .  j  av a2s.c om
@Override
public IStatus execute(final IProgressMonitor monitor) {
    final String urlAsString = m_url.toString();
    final HttpMethod method = new GetMethod(urlAsString);
    // do not forget the next line!
    method.setDoAuthentication(true);

    final Thread thread = new Thread() {
        @Override
        public void run() {
            try {
                final HttpClient httpClient = getHttpClient();
                httpClient.executeMethod(method);
                setResult(method.getResponseBodyAsStream());
            } catch (final IOException e) {
                final IStatus status;

                String responseBodyAsString = Messages.getString("org.kalypso.util.net.URLGetter.1"); //$NON-NLS-1$
                try {
                    responseBodyAsString = method.getResponseBodyAsString();
                } catch (final IOException e1) {
                    final IStatus status2 = StatusUtilities.statusFromThrowable(e1);
                    KalypsoGisPlugin.getDefault().getLog().log(status2);
                }

                String message = Messages.getString("org.kalypso.util.net.URLGetter.2") + urlAsString; //$NON-NLS-1$
                if (responseBodyAsString != null && !responseBodyAsString.isEmpty())
                    message += "\n" + responseBodyAsString; //$NON-NLS-1$

                status = new Status(IStatus.ERROR, KalypsoGisPlugin.getId(), 0, message, e);
                setStatus(status);
            }
        }
    };

    monitor.beginTask(urlAsString, IProgressMonitor.UNKNOWN);
    monitor.subTask(Messages.getString("org.kalypso.util.net.URLGetter.4")); //$NON-NLS-1$
    thread.start();
    while (thread.isAlive()) {
        try {
            Thread.sleep(100);
        } catch (final InterruptedException e1) {
            // should never happen, ignore
            e1.printStackTrace();
        }

        final String statusText;
        final StatusLine statusLine = method.getStatusLine();
        if (statusLine == null)
            statusText = Messages.getString("org.kalypso.util.net.URLGetter.5"); //$NON-NLS-1$
        else
            statusText = method.getStatusText();

        monitor.subTask(statusText);
        monitor.worked(1);
        if (monitor.isCanceled()) {
            // TODO: this does not stop the thread!
            thread.interrupt();

            monitor.done();
            return Status.CANCEL_STATUS;
        }
    }

    monitor.done();
    return m_status;
}

From source file:org.krakenapps.pkg.HttpWagon.java

public static InputStream openDownloadStream(URL url, boolean useAuth, String username, String password)
        throws IOException {
    Logger logger = LoggerFactory.getLogger(HttpWagon.class.getName());
    logger.trace("http wagon: downloading {}", url);

    HttpClient client = new HttpClient();
    if (useAuth) {
        client.getParams().setAuthenticationPreemptive(true);
        Credentials defaultcreds = new UsernamePasswordCredentials(username, password);
        client.getState().setCredentials(new AuthScope(url.getHost(), url.getPort(), AuthScope.ANY_REALM),
                defaultcreds);//w w w . j av a  2  s . c  om
    }

    HttpMethod method = new GetMethod(url.toString());

    int socketTimeout = getSocketTimeout();
    int connectionTimeout = getConnectTimeout();

    client.getParams().setParameter("http.socket.timeout", socketTimeout);
    client.getParams().setParameter("http.connection.timeout", connectionTimeout);
    client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, null);

    int statusCode = client.executeMethod(method);

    if (statusCode != HttpStatus.SC_OK) {
        throw new IOException("method failed: " + method.getStatusLine());
    }

    return method.getResponseBodyAsStream();
}