Example usage for org.apache.http.client HttpClient execute

List of usage examples for org.apache.http.client HttpClient execute

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Introduction

In this page you can find the example usage for org.apache.http.client HttpClient execute.

Prototype

HttpResponse execute(HttpUriRequest request) throws IOException, ClientProtocolException;

Source Link

Document

Executes HTTP request using the default context.

Usage

From source file:csiro.pidsvc.helper.Http.java

public static String simpleGetRequest(String uri) {
    HttpClient httpClient = new DefaultHttpClient();
    try {/*from   ww w.  j ava 2s . c o  m*/
        HttpGet httpGet = new HttpGet(uri);

        // Get the data.
        HttpResponse response = httpClient.execute(httpGet);
        HttpEntity entity = response.getEntity();

        // Return content.
        return EntityUtils.toString(entity);
    } catch (Exception e) {
        _logger.warn("Exception occurred while executing an HTTP request.", e);
        return null;
    } finally {
        httpClient.getConnectionManager().shutdown();
    }
}

From source file:au.org.ala.bhl.service.WebServiceHelper.java

/**
 * Performs a GET on the specified URI, and expects that the output is well formed JSON. The output is parsed into a JsonNode for consumption
 * //from   w ww.j a  va2  s. c om
 * @param uri
 * @return
 * @throws IOException
 */
public static JsonNode getJSON(String uri) throws IOException {
    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet(uri);
    httpget.setHeader("Accept", "application/json");
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();
    if (entity != null) {
        InputStream instream = entity.getContent();
        @SuppressWarnings("unchecked")
        List<String> lines = IOUtils.readLines(instream, "utf-8");
        String text = StringUtils.join(lines, "\n");
        try {
            JsonNode root = new ObjectMapper().readValue(text, JsonNode.class);
            return root;
        } catch (Exception ex) {
            log("Error parsing results for request: %s\n%s\n", uri, text);
            ex.printStackTrace();
        }

    }
    return null;
}

From source file:csiro.pidsvc.helper.Http.java

public static String simpleGetRequestStrict(String uri) {
    HttpClient httpClient = new DefaultHttpClient();
    try {// w w  w. jav  a 2 s . c  om
        HttpGet httpGet = new HttpGet(uri);

        // Get the data.
        HttpResponse response = httpClient.execute(httpGet);
        if (response.getStatusLine().getStatusCode() != 200)
            return null;
        HttpEntity entity = response.getEntity();

        // Return content.
        return EntityUtils.toString(entity);
    } catch (Exception e) {
        _logger.warn("Exception occurred while executing an HTTP request.", e);
        return null;
    } finally {
        httpClient.getConnectionManager().shutdown();
    }
}

From source file:org.phpmaven.pear.impl.Helper.java

/**
 * Returns the text file contents.// w w  w .  j av a2  s  . c  o m
 * @param uri URI of the resource.
 * @return the files content.
 * @throws IOException thrown on errors.
 */
public static String getTextFileContents(String uri) throws IOException {
    // is it inside the local filesystem?
    if (uri.startsWith("file://")) {
        final File channelFile = new File(uri.substring(7));

        final String lineSep = System.getProperty("line.separator");
        final BufferedReader br = new BufferedReader(new FileReader(channelFile));
        String nextLine = "";
        final StringBuffer sb = new StringBuffer();
        while ((nextLine = br.readLine()) != null) {
            sb.append(nextLine);
            sb.append(lineSep);
        }
        return sb.toString();
    }

    // try http connection
    final HttpClient client = new DefaultHttpClient();
    final HttpGet httpget = new HttpGet(uri);
    final HttpResponse response = client.execute(httpget);
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
        throw new IOException("Invalid http status: " + response.getStatusLine().getStatusCode() + " / "
                + response.getStatusLine().getReasonPhrase());
    }
    final HttpEntity entity = response.getEntity();
    if (entity == null) {
        throw new IOException("Empty response.");
    }
    return EntityUtils.toString(entity);
}

From source file:org.wso2.security.tools.product.manager.NotificationManager.java

private static void notifyStatus(String path, boolean status) throws NotificationManagerException {
    int i = 0;//ww w . j a va2s .  c  o  m
    while (i < 10) {
        try {
            URI uri = (new URIBuilder()).setHost(automationManagerHost).setPort(automationManagerPort)
                    .setScheme("http").setPath(path).addParameter("containerId", myContainerId)
                    .addParameter("status", String.valueOf(status)).build();
            HttpClient httpClient = HttpClientBuilder.create().build();
            HttpGet get = new HttpGet(uri);

            HttpResponse response = httpClient.execute(get);
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                LOGGER.info("Notified successfully");
                return;
            } else {
                i++;
            }
            Thread.sleep(2000);
        } catch (URISyntaxException | InterruptedException | IOException e) {
            e.printStackTrace();
            LOGGER.error(e.toString());
            i++;
        }
    }
    throw new NotificationManagerException("Error occurred while notifying status to Automation Manager");
}

From source file:org.phpmaven.pear.library.impl.Helper.java

/**
 * Returns the binary file contents.//from  w  w  w. java  2 s .  c  o m
 * @param uri URI of the resource.
 * @return the files content.
 * @throws IOException thrown on errors.
 */
public static byte[] getBinaryFileContents(String uri) throws IOException {
    // is it inside the local filesystem?
    if (uri.startsWith("file://")) {
        final File channelFile = new File(uri.substring(7));

        final byte[] result = new byte[(int) channelFile.length()];
        final FileInputStream fis = new FileInputStream(channelFile);
        fis.read(result);
        fis.close();
        return result;
    }

    // try http connection
    final HttpClient client = new DefaultHttpClient();
    final HttpGet httpget = new HttpGet(uri);
    final HttpResponse response = client.execute(httpget);
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
        throw new IOException("Invalid http status: " + response.getStatusLine().getStatusCode() + " / "
                + response.getStatusLine().getReasonPhrase());
    }
    final HttpEntity entity = response.getEntity();
    if (entity == null) {
        throw new IOException("Empty response.");
    }
    return EntityUtils.toByteArray(entity);
}

From source file:es.bsc.demiurge.core.utils.HttpUtils.java

/**
 * Gets the response of an HTTP request.
 * /*from  w  w w. j  a  v a  2s .co  m*/
 * @param request The HTTP request from which we want to obtain the response.
 * @return The response of the HTTP request
 */
public static String getHttpResponse(HttpRequestBase request) {
    HttpClient httpclient = HttpClients.createDefault();
    String responseContent = "";
    try {
        HttpResponse response = httpclient.execute(request);
        if (response.getEntity() != null) {
            responseContent = IOUtils.toString(response.getEntity().getContent());
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return responseContent;
}

From source file:it.agileday.utils.HttpRestUtil.java

public static Bitmap httpGetBitmap(String url) {
    final HttpClient client = new DefaultHttpClient();
    final HttpGet getRequest = new HttpGet(url);

    try {/*from   w  w  w . j  a  va 2 s . co m*/
        HttpResponse response = client.execute(getRequest);
        final int statusCode = response.getStatusLine().getStatusCode();
        if (statusCode != HttpStatus.SC_OK) {
            Log.w(TAG, "Error " + statusCode + " while retrieving bitmap from " + url);
            return null;
        }

        final HttpEntity entity = response.getEntity();
        if (entity != null) {
            InputStream inputStream = null;
            try {
                inputStream = entity.getContent();
                final Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
                return bitmap;
            } finally {
                if (inputStream != null) {
                    inputStream.close();
                }
                entity.consumeContent();
            }
        }
    } catch (Exception e) {
        getRequest.abort();
        Log.w(TAG, "Error while retrieving bitmap from " + url, e);
    }
    return null;
}

From source file:eu.skillpro.ams.pscm.connector.amsservice.ui.SendExecutableSkillToServer.java

public static Report push(String id, String snippet, String seeID) throws IOException {
    String serviceName = "registerResourceExecutableSkill";

    StringBuilder parameters = new StringBuilder();

    if (id != null && !id.trim().isEmpty()) {
        parameters.append("?id=" + URLEncoder.encode(id, "UTF-8"));
    }/* ww  w  . ja v  a2s  .  c o m*/

    if (seeID != null && !seeID.trim().isEmpty()) {
        parameters.append("&seeID=" + URLEncoder.encode(seeID, "UTF-8"));
    }

    if (snippet != null && !snippet.trim().isEmpty()) {
        parameters.append("&amlDescription=" + URLEncoder.encode(snippet, "UTF-8"));
    }

    HttpGet request = new HttpGet(AMSServiceUtility.serviceAddress + serviceName + parameters.toString());
    System.out.println(request.getRequestLine() + " =====================================");
    request.setHeader("Content-type", "application/json");

    HttpClient client = HttpClientBuilder.create().build();
    ;
    HttpResponse response = client.execute(request);

    System.out.println("Response status: " + response.getStatusLine().getStatusCode());

    String resp = EntityUtils.toString(response.getEntity());
    Report result = JSONUtility.convertToObject(resp, Report.class);
    return result;
}

From source file:org.basinmc.maven.plugins.minecraft.launcher.VersionIndex.java

/**
 * Fetches a version index from the Mojang servers.
 *//*from   ww w .jav a  2s. com*/
@Nonnull
public static VersionIndex fetch() throws IOException {
    HttpClient client = HttpClients.createMinimal();

    HttpGet request = new HttpGet(URL);
    HttpResponse response = client.execute(request);

    StatusLine line = response.getStatusLine();

    if (line.getStatusCode() != 200) {
        throw new IOException(
                "Unexpected response code: " + line.getStatusCode() + " - " + line.getReasonPhrase());
    }

    try (InputStream inputStream = response.getEntity().getContent()) {
        return READER.forType(VersionIndex.class).readValue(inputStream);
    }
}