Example usage for java.net HttpURLConnection HTTP_OK

Introduction

In this page you can find the example usage for java.net HttpURLConnection HTTP_OK.

Prototype

int HTTP_OK

To view the source code for java.net HttpURLConnection HTTP_OK.

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Document

HTTP Status-Code 200: OK.

Usage

From source file:fr.lissi.belilif.om2m.rest.WebServiceActions.java

/**
 * Checks if is reachable./*from ww  w.  j  av  a 2 s  .c  o  m*/
 *
 * @param uri the uri
 * @param headers the headers
 * @return true, if is reachable
 */
public static boolean isReachable(String uri, HashMap<String, String> headers) {
    try {
        HttpURLConnection.setFollowRedirects(false);
        // note : you may also need
        // HttpURLConnection.setInstanceFollowRedirects(false)
        HttpURLConnection myURLConnection = (HttpURLConnection) new URL(uri).openConnection();
        myURLConnection.setRequestMethod("HEAD");
        for (String key : headers.keySet()) {
            myURLConnection.setRequestProperty("Authorization", headers.get(key));
        }
        LOGGER.info(myURLConnection.getResponseCode() + " / " + myURLConnection.toString());
        return (myURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK);
    } catch (Exception e) {
        e.printStackTrace();
        return false;
    }
}

---

From source file:com.shuffle.bitcoin.blockchain.Btcd.java

@Override
protected boolean send(Bitcoin.Transaction t)
        throws ExecutionException, InterruptedException, CoinNetworkException {
    if (!t.canSend || t.sent) {
        return false;
    }//  w  ww .  j av a  2s . c o  m

    String hexTx = null;
    try {
        hexTx = DatatypeConverter.printHexBinary(t.bitcoinj().bitcoinSerialize());
    } catch (BlockStoreException e) {
        return false;
    } catch (IOException er) {
        return false;
    }
    String requestBody = "{\"jsonrpc\":\"2.0\",\"id\":\"null\",\"method\":\"sendrawtransaction\", \"params\":[\""
            + hexTx + "\"]}";

    HttpURLConnection connection = null;
    try {
        connection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        return false;
    }
    connection.setDoOutput(true);
    try {
        connection.setRequestMethod("POST");
    } catch (java.net.ProtocolException e) {
        return false;
    }
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setRequestProperty("Accept", "application/json");
    Base64 b = new Base64();
    String authString = rpcuser + ":" + rpcpass;
    String encoding = b.encodeAsString(authString.getBytes());
    connection.setRequestProperty("Authorization", "Basic " + encoding);
    connection.setRequestProperty("Content-Length", Integer.toString(requestBody.getBytes().length));
    connection.setDoInput(true);
    OutputStream out;
    try {
        out = connection.getOutputStream();
    } catch (IOException e) {
        return false;
    }
    try {
        out.write(requestBody.getBytes());
    } catch (IOException e) {
        return false;
    }

    try {
        if (connection.getResponseCode() != HttpURLConnection.HTTP_OK)
            return false;
    } catch (IOException e) {
        return false;
    }

    InputStream is;
    try {
        is = connection.getInputStream();
    } catch (IOException e) {
        return false;
    }
    BufferedReader rd = new BufferedReader(new InputStreamReader(is));
    String line;
    StringBuffer response = new StringBuffer();
    while (true) {
        try {
            if ((line = rd.readLine()) == null)
                break;
        } catch (IOException e) {
            return false;
        }
        response.append(line);
        response.append('\r');
    }

    try {
        rd.close();
    } catch (IOException e) {
        return false;
    }

    JSONObject json = new JSONObject(response.toString());
    if (json.isNull("result")) {
        JSONObject errorObj = json.getJSONObject("error");
        String errorMsg = errorObj.getString("message");
        String parsed = errorMsg.substring(0, 37);
        // transaction is already in mempool, return true
        if (parsed.equals("TX rejected: already have transaction")) {
            return true;
        }
        throw new CoinNetworkException(errorMsg);
    }

    return true;
}

---

From source file:net.sf.okapi.filters.drupal.DrupalConnector.java

/**
 * Logout and end session/*from   ww  w .ja v a2  s . c om*/
 * @return
 */
boolean logout() {
    try {
        URL url = new URL(host + "rest/user/logout");
        HttpURLConnection conn = createConnection(url, "POST", false);
        if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
            conn.disconnect();
            return false;
        }
        conn.disconnect();
    } catch (Throwable e) {
        throw new OkapiIOException("Error in logout().", e);
    }
    return true;
}

---

From source file:co.forsaken.api.json.JsonWebCall.java

private boolean canConnect() throws Exception {
    try {/*from w  w w . j  av a  2s  .c o  m*/
        HttpURLConnection.setFollowRedirects(false);
        HttpURLConnection con = (HttpURLConnection) new URL(_url).openConnection();
        con.setRequestMethod("HEAD");

        con.setConnectTimeout(2000);

        if (con.getResponseCode() != HttpURLConnection.HTTP_OK) {
            throw new Exception("Service " + _url + " unavailable, oh no!");
        }
        return true;
    } catch (java.net.SocketTimeoutException e) {
        throw new Exception("Service " + _url + " unavailable, oh no!", e);
    } catch (java.io.IOException e) {
        throw new Exception("Service " + _url + " unavailable, oh no!", e);
    }
}

---

From source file:org.eclipse.rdf4j.http.server.ProtocolTest.java

/**
 * Checks that the requested content type is returned when accept header explicitly set.
 *//*  w w  w  .  j a  v  a2 s .co  m*/
@Test
public void testContentTypeForGraphQuery1_GET() throws Exception {
    String query = "DESCRIBE <foo:bar>";
    String location = TestServer.REPOSITORY_URL;
    location += "?query=" + URLEncoder.encode(query, "UTF-8");

    URL url = new URL(location);

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();

    // Request RDF/XML formatted results:
    conn.setRequestProperty("Accept", RDFFormat.RDFXML.getDefaultMIMEType());

    conn.connect();

    try {
        int responseCode = conn.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            String contentType = conn.getHeaderField("Content-Type");
            assertNotNull(contentType);

            // snip off optional charset declaration
            int charPos = contentType.indexOf(";");
            if (charPos > -1) {
                contentType = contentType.substring(0, charPos);
            }

            assertEquals(RDFFormat.RDFXML.getDefaultMIMEType(), contentType);
        } else {
            String response = "location " + location + " responded: " + conn.getResponseMessage() + " ("
                    + responseCode + ")";
            fail(response);
            throw new RuntimeException(response);
        }
    } finally {
        conn.disconnect();
    }
}

---

From source file:net.praqma.jenkins.rqm.request.RQMHttpClient.java

public void followRedirects(HttpMethodBase method, int responseCode) throws HttpException, IOException {
    Header location = method.getResponseHeader("Location");
    while (location != null && responseCode == HttpURLConnection.HTTP_MOVED_TEMP) {
        GetMethod get3 = new GetMethod(location.getValue());
        responseCode = executeMethod(get3);
        if (responseCode != HttpURLConnection.HTTP_OK) {
            log.fine(String.format("Follow redirects returned code %s", responseCode));
        }/*from  w ww.j a  v  a  2 s.com*/
        location = get3.getResponseHeader("Location");

    }
}

---

From source file:eu.gsmservice.android.websms.connector.gsmservice.ConnectorGsmService.java

/**
 * Send data.//from  w w  w . j  a  v a 2s  . c  o  m
 *
 * @param fullTargetURL
 * @param context
 * @throws WebSMSException
 */
private void sendData(final String fullTargetURL, final Context context) throws WebSMSException {
    this.log("Start sendData");
    try {
        this.log("sending url: " + fullTargetURL.toString());

        HttpOptions httpOptions = new HttpOptions(ENCODING);
        httpOptions.url = fullTargetURL;
        httpOptions.userAgent = USER_AGENT;
        httpOptions.trustAll = true;

        this.log("send data: getHttpClient(...)");
        HttpResponse response = Utils.getHttpClient(httpOptions);
        int resp = response.getStatusLine().getStatusCode();
        if (resp != HttpURLConnection.HTTP_OK) {
            throw new WebSMSException(context, R.string.error_http, "" + resp);
        }
        String htmlText = Utils.stream2str(response.getEntity().getContent()).trim();
        if (htmlText == null || htmlText.length() == 0) {
            throw new WebSMSException(context, R.string.error_service);
        }
        htmlText = null;

    } catch (Exception e) {
        Log.e(TAG, "Error: " + e.getMessage(), e);
        throw new WebSMSException(e.getMessage());
    }
    this.log("End sendData");
}

---

From source file:de.innovationgate.igutils.pingback.PingBackClient.java

/**
 * checks if the given sourceURI is reachable, has textual content and contains a link to the given target
 * if present the title of the sourceURI is returned
 * @param sourceURI - the sourceURI to check
 * @param targetURI - the targetURI to search as link 
 * @throws PingBackException - thrown if check fails
 * @returns title of the sourceURI - null if not present or found
 *//*from w  w w .  j  a  v  a2s.c  o  m*/
public String checkSourceURI(String sourceURI, String targetURI) throws PingBackException {
    HttpClient client = WGFactory.getHttpClientFactory().createHttpClient();
    GetMethod sourceGET = new GetMethod(sourceURI);
    sourceGET.setFollowRedirects(false);
    try {
        int responseCode = client.executeMethod(sourceGET);
        if (responseCode != HttpURLConnection.HTTP_OK) {
            if (responseCode == HttpURLConnection.HTTP_FORBIDDEN) {
                throw new PingBackException(PingBackException.ERROR_ACCESS_DENIED,
                        "Access denied on source uri '" + sourceURI + "'.");
            } else if (responseCode == HttpURLConnection.HTTP_BAD_GATEWAY) {
                throw new PingBackException(PingBackException.ERROR_UPSTREAM_SERVER_COMMUNICATION_ERROR,
                        "Get request on source uri '" + sourceURI + "' returned '" + responseCode + "'.");
            } else {
                throw new PingBackException(PingBackException.ERROR_GENERIC,
                        "Source uri is unreachable. Get request on source uri '" + sourceURI + "' returned '"
                                + responseCode + "'.");
            }
        }

        checkTextualContentType(sourceGET);

        // search link to target in source
        InputStream sourceIn = sourceGET.getResponseBodyAsStream();
        String searchTerm = targetURI.toLowerCase();
        boolean linkFound = false;
        String title = null;
        if (sourceIn == null) {
            throw new PingBackException(PingBackException.ERROR_SOURCE_URI_HAS_NO_LINK,
                    "Source uri contains no link to target '" + targetURI + "'.");
        } else {
            // first of all read response into a fix buffer of 2Mb - all further content will be ignored for doS-reason
            ByteArrayOutputStream htmlPageBuffer = new ByteArrayOutputStream();
            inToOut(sourceGET.getResponseBodyAsStream(), htmlPageBuffer, 1024, documentSizeLimit);

            try {
                // search for title
                DOMParser parser = new DOMParser();
                parser.parse(new InputSource(new ByteArrayInputStream(htmlPageBuffer.toByteArray())));
                Document doc = parser.getDocument();
                NodeList titleElements = doc.getElementsByTagName("title");
                if (titleElements.getLength() > 0) {
                    // retrieve first title
                    Node titleNode = titleElements.item(0);
                    title = titleNode.getFirstChild().getNodeValue();
                }
            } catch (Exception e) {
                // ignore any parsing exception - title is just a goodie
            }

            // read line per line and search for link
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    new ByteArrayInputStream(htmlPageBuffer.toByteArray()), sourceGET.getResponseCharSet()));
            String line = reader.readLine();
            while (line != null) {
                line = line.toLowerCase();
                if (line.indexOf(searchTerm) != -1) {
                    linkFound = true;
                    break;
                }
                line = reader.readLine();
            }
        }

        if (!linkFound) {
            throw new PingBackException(PingBackException.ERROR_SOURCE_URI_HAS_NO_LINK,
                    "Source uri '" + sourceURI + "' contains no link to target '" + targetURI + "'.");
        } else {
            return title;
        }
    } catch (HttpException e) {
        throw new PingBackException(PingBackException.ERROR_GENERIC,
                "Unable to check source uri '" + sourceURI + "'.", e);
    } catch (IOException e) {
        throw new PingBackException(PingBackException.ERROR_GENERIC,
                "Unable to check source uri '" + sourceURI + "'.", e);
    }
}

---

From source file:fr.gael.dhus.service.ProductService.java

private static void wcsDeleteCoverage(String coverageId) throws IOException {
    String GET_URL = "http://localhost:8080/rasdaman/ows?SERVICE=WCS&VERSION=2.0.1&request=DeleteCoverage&coverageId="
            + coverageId;//from ww w  . j  a  v  a  2s. c o  m
    String USER_AGENT = "Mozilla/5.0";
    URL obj = new URL(GET_URL);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();
    con.setRequestMethod("GET");
    con.setRequestProperty("User-Agent", USER_AGENT);
    int responseCode = con.getResponseCode();
    if (responseCode == HttpURLConnection.HTTP_OK)
        logger.info("Successfully deleted coverage with id " + coverageId);
    else
        logger.error("NoSuchCoverage");
}

---

From source file:org.apache.hadoop.hbase.http.TestSpnegoHttpServer.java

@Test
public void testAllowedClient() throws Exception {
    // Create the subject for the client
    final Subject clientSubject = JaasKrbUtil.loginUsingKeytab(CLIENT_PRINCIPAL, clientKeytab);
    final Set<Principal> clientPrincipals = clientSubject.getPrincipals();
    // Make sure the subject has a principal
    assertFalse(clientPrincipals.isEmpty());

    // Get a TGT for the subject (might have many, different encryption types). The first should
    // be the default encryption type.
    Set<KerberosTicket> privateCredentials = clientSubject.getPrivateCredentials(KerberosTicket.class);
    assertFalse(privateCredentials.isEmpty());
    KerberosTicket tgt = privateCredentials.iterator().next();
    assertNotNull(tgt);//from w w w.  j  a v a  2s  .  c  o  m

    // The name of the principal
    final String principalName = clientPrincipals.iterator().next().getName();

    // Run this code, logged in as the subject (the client)
    HttpResponse resp = Subject.doAs(clientSubject, new PrivilegedExceptionAction<HttpResponse>() {
        @Override
        public HttpResponse run() throws Exception {
            // Logs in with Kerberos via GSS
            GSSManager gssManager = GSSManager.getInstance();
            // jGSS Kerberos login constant
            Oid oid = new Oid("1.2.840.113554.1.2.2");
            GSSName gssClient = gssManager.createName(principalName, GSSName.NT_USER_NAME);
            GSSCredential credential = gssManager.createCredential(gssClient, GSSCredential.DEFAULT_LIFETIME,
                    oid, GSSCredential.INITIATE_ONLY);

            HttpClientContext context = HttpClientContext.create();
            Lookup<AuthSchemeProvider> authRegistry = RegistryBuilder.<AuthSchemeProvider>create()
                    .register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory(true, true)).build();

            HttpClient client = HttpClients.custom().setDefaultAuthSchemeRegistry(authRegistry).build();
            BasicCredentialsProvider credentialsProvider = new BasicCredentialsProvider();
            credentialsProvider.setCredentials(AuthScope.ANY, new KerberosCredentials(credential));

            URL url = new URL(getServerURL(server), "/echo?a=b");
            context.setTargetHost(new HttpHost(url.getHost(), url.getPort()));
            context.setCredentialsProvider(credentialsProvider);
            context.setAuthSchemeRegistry(authRegistry);

            HttpGet get = new HttpGet(url.toURI());
            return client.execute(get, context);
        }
    });

    assertNotNull(resp);
    assertEquals(HttpURLConnection.HTTP_OK, resp.getStatusLine().getStatusCode());
    assertEquals("a:b", EntityUtils.toString(resp.getEntity()).trim());
}

---

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