Example usage for java.net HttpURLConnection getErrorStream

Introduction

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

Prototype

public InputStream getErrorStream() 

Source Link

Document

Returns the error stream if the connection failed but the server sent useful data nonetheless.

Usage

From source file:com.github.gorbin.asne.linkedin.LinkedInSocialNetwork.java

private String checkInputStream(HttpURLConnection connection) {
    String code = null, errorMessage = null;
    InputStream inputStream = connection.getErrorStream();
    String response = streamToString(inputStream);
    try {//from w  w  w  .  ja v  a2 s  .  co  m
        JSONObject jsonResponse = (JSONObject) new JSONTokener(response).nextValue();
        if (jsonResponse.has("status")) {
            code = jsonResponse.getString("status");
        }
        if (jsonResponse.has("message")) {
            errorMessage = jsonResponse.getString("message");
        }
        return "ERROR CODE: " + code + " ERROR MESSAGE: " + errorMessage;
    } catch (JSONException e) {
        return e.getMessage();
    }
}

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From source file:manchester.synbiochem.datacapture.SeekConnector.java

private void readErrorFromConnection(HttpURLConnection c, String logPrefix, String message) throws IOException {
    int rc = c.getResponseCode();
    String msg = c.getResponseMessage();
    log.error(logPrefix + ": " + rc + " " + msg);
    InputStream errors = c.getErrorStream();
    if (errors != null) {
        for (String line : readLines(errors))
            log.error(logPrefix + ": " + line);
        errors.close();//from   w w w.jav  a2s  .  co m
    }
    throw new InternalServerErrorException(format(message, rc, msg));
}

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From source file:com.ijiaban.uitls.AbstractGetNameTask.java

/**
 * Contacts the user info server to get the profile of the user and extracts the first name
 * of the user from the profile. In order to authenticate with the user info server the method
 * first fetches an access token from Google Play services.
 * @throws IOException if communication with user info server failed.
 * @throws JSONException if the response from the server could not be parsed.
 *//* w  w w  .  jav a  2s.  c  om*/
private void fetchNameFromProfileServer() throws IOException, JSONException {
    String token = fetchToken();
    if (token == null) {
        // error has already been handled in fetchToken()
        return;
    }
    URL url = new URL("https://www.googleapis.com/oauth2/v1/userinfo?access_token=" + token);

    HttpURLConnection con = (HttpURLConnection) url.openConnection();
    int sc = con.getResponseCode();
    if (sc == HttpURLConnection.HTTP_OK) {
        InputStream is = con.getInputStream();
        String detail = readResponse(is);
        JSONObject jb = new JSONObject(detail);

        String name = getFirstName(detail);
        String image = getImage(detail);
        mFragment.show("Welcome " + name + "!");
        mFragment.displayimage(image);

        is.close();
        return;
    } else if (sc == 401) {
        GoogleAuthUtil.invalidateToken(mFragment.getActivity(), token);
        onError("Server auth error, please try again.", null);
        Log.i(TAG, "Server auth error: " + readResponse(con.getErrorStream()));
        return;
    } else {
        onError("Server returned the following error code: " + sc, null);
        return;
    }
}

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From source file:com.parasoft.em.client.impl.JSONClient.java

protected JSONObject doPost(String restPath, JSONObject payload) throws IOException {
    HttpURLConnection connection = getConnection(restPath);
    connection.setRequestMethod("POST");
    if (payload != null) {
        String payloadString = payload.toString();
        connection.setRequestProperty("Content-Type", "application/json; charset=utf-8");
        BufferedOutputStream stream = new BufferedOutputStream(connection.getOutputStream());
        try {//  w  w  w .  ja v  a 2 s  .c  om
            byte[] bytes = payloadString.getBytes("UTF-8");
            stream.write(bytes, 0, bytes.length);
        } finally {
            stream.close();
        }
    }
    int responseCode = connection.getResponseCode();
    if (responseCode / 100 == 2) {
        return getResponseJSON(connection.getInputStream());
    } else {
        String errorMessage = getResponseString(connection.getErrorStream());
        throw new IOException(restPath + ' ' + responseCode + '\n' + errorMessage);
    }
}

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From source file:com.example.appengine.appidentity.UrlShortener.java

/**
 * Returns a shortened URL by calling the Google URL Shortener API.
 *
 * <p>Note: Error handling elided for simplicity.
 *//* w ww . j a v  a 2s  .c o m*/
public String createShortUrl(String longUrl) throws Exception {
    ArrayList<String> scopes = new ArrayList<String>();
    scopes.add("https://www.googleapis.com/auth/urlshortener");
    final AppIdentityService appIdentity = AppIdentityServiceFactory.getAppIdentityService();
    final AppIdentityService.GetAccessTokenResult accessToken = appIdentity.getAccessToken(scopes);
    // The token asserts the identity reported by appIdentity.getServiceAccountName()
    JSONObject request = new JSONObject();
    request.put("longUrl", longUrl);

    URL url = new URL("https://www.googleapis.com/urlshortener/v1/url?pp=1");
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoOutput(true);
    connection.setRequestMethod("POST");
    connection.addRequestProperty("Content-Type", "application/json");
    connection.addRequestProperty("Authorization", "Bearer " + accessToken.getAccessToken());

    OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
    request.write(writer);
    writer.close();

    if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
        // Note: Should check the content-encoding.
        //       Any JSON parser can be used; this one is used for illustrative purposes.
        JSONTokener responseTokens = new JSONTokener(connection.getInputStream());
        JSONObject response = new JSONObject(responseTokens);
        return (String) response.get("id");
    } else {
        try (InputStream s = connection.getErrorStream();
                InputStreamReader r = new InputStreamReader(s, StandardCharsets.UTF_8)) {
            throw new RuntimeException(String.format("got error (%d) response %s from %s",
                    connection.getResponseCode(), CharStreams.toString(r), connection.toString()));
        }
    }
}

---

From source file:com.mycompany.grupo6ti.GenericResource.java

@GET
@Produces("application/json")
@Path("/obtenerFactura/{id}")
public String obtenerFactura(@PathParam("id") String id) {
    String result = " ";
    try {/*  w  w w.  j a  v a 2 s  .  c om*/

        String line;

        URL url = new URL("http://localhost:85/" + id);

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        InputStream is;
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("GET");

        conn.setDoInput(true);
        if (conn.getResponseCode() >= 400) {

            is = conn.getErrorStream();
        } else {
            is = conn.getInputStream();

        }

        BufferedReader rd = new BufferedReader(new InputStreamReader(is));

        while ((line = rd.readLine()) != null) {
            result += line;
        }

    } catch (IOException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return result;
}

---

From source file:at.ac.tuwien.dsg.celar.mela.jCatascopiaClient.JCatascopiaDataSource.java

/**
 * Example of JSON to parse/*from  w w w  . j  av  a  2s.  c o m*/
 * {"agents":[{"agentID":"7d2c9d18cc694ea7b7f0ea8002773871","agentIP":"10.16.21.73","status":"UP"}
 * ,{"agentID":"9e14d7ee11414641994cc3563f6b37d9","agentIP":"10.16.21.52","status":"UP"}}
 */
private void updateJCatascopiaAgents(List<JCatascopiaAgent> agentsPool) {
    URL url = null;
    HttpURLConnection connection = null;
    try {
        url = new URL(this.url + "/agents");
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty("Content-Type", "application/json");
        connection.setRequestProperty("Accept", "application/json");

        InputStream errorStream = connection.getErrorStream();
        if (errorStream != null) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(errorStream));
            String line;
            while ((line = reader.readLine()) != null) {
                Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE, line);
            }
        }

        InputStream inputStream = connection.getInputStream();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));

        String agentsDescription = "";

        String line = "";
        while ((line = bufferedReader.readLine()) != null) {
            agentsDescription += line;
        }

        JSONObject object = new JSONObject(agentsDescription);
        if (object.has("agents")) {
            JSONArray agents = object.getJSONArray("agents");

            int nrOfAgentsInJCatascopia = agents.length();
            int nrOfAgentsInPool = agentsPool.size();
            int sizeDifference = nrOfAgentsInPool - nrOfAgentsInJCatascopia;

            //resize agents pool
            if (sizeDifference < 0) {
                //inchrease agents pool
                for (int i = sizeDifference; i < 0; i++) {
                    agentsPool.add(new JCatascopiaAgent());
                }
            } else if (sizeDifference > 0) {
                for (int i = sizeDifference; i > 0; i--) {
                    agentsPool.remove(0);
                }
            }

            //populate the agents pool
            for (int i = 0; i < agents.length(); i++) {
                JSONObject agent = agents.getJSONObject(i);
                JCatascopiaAgent jCatascopiaAgent = agentsPool.get(i);

                //get agent ID
                if (agent.has("agentID")) {
                    jCatascopiaAgent.setId(agent.getString("agentID"));
                } else {
                    Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE,
                            "JCatascopia agentID not found in {0}", agentsDescription);
                }

                //get agent IP
                if (agent.has("agentIP")) {
                    jCatascopiaAgent.setIp(agent.getString("agentIP"));
                } else {
                    Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE,
                            "JCatascopia agentIP not found in {0}", agentsDescription);
                }

                //get agent status
                if (agent.has("status")) {
                    jCatascopiaAgent.setStatus(agent.getString("status"));
                } else {
                    Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE,
                            "JCatascopia status not found in {0}", agentsDescription);
                }

            }

        } else {
            Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE,
                    "No JCatascopia agents found in {0}", agentsDescription);
        }

    } catch (Exception e) {
        Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE,
                "Error connecting to " + this.url);
        Logger.getLogger(JCatascopiaDataSource.class.getName()).log(Level.SEVERE, e.getMessage(), e);
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
    }
}

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From source file:com.googlecode.jsonrpc4j.JsonRpcHttpClient.java

/**
 * Invokes the given method with the given arguments and returns
 * an object of the given type, or null if void.
 *
 * @see JsonRpcClient#writeRequest(String, Object, java.io.OutputStream, String)
 * @param methodName the name of the method to invoke
 * @param arguments the arguments to the method
 * @param returnType the return type//w ww  .j  a v a 2s .  co m
 * @param extraHeaders extra headers to add to the request
 * @return the return value
 * @throws Throwable on error
 */
public Object invoke(String methodName, Object argument, Type returnType, Map<String, String> extraHeaders)
        throws Throwable {

    // create URLConnection
    HttpURLConnection con = prepareConnection(extraHeaders);
    con.connect();

    // invoke it
    OutputStream ops = con.getOutputStream();
    try {
        super.invoke(methodName, argument, ops);
    } finally {
        ops.close();
    }

    // read and return value
    try {
        InputStream ips = con.getInputStream();
        try {
            // in case of http error try to read response body and return it in exception
            return super.readResponse(returnType, ips);
        } finally {
            ips.close();
        }
    } catch (IOException e) {
        throw new HttpException(readString(con.getErrorStream()), e);
    }
}

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From source file:io.confluent.kafkarest.tools.ConsumerPerformance.java

private <T> T request(String target, String method, byte[] entity, String entityLength,
        TypeReference<T> responseFormat) {
    HttpURLConnection connection = null;
    try {// w  ww. j ava 2  s.  co  m
        URL url = new URL(target);
        connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod(method);
        if (entity != null) {
            connection.setRequestProperty("Content-Type", Versions.KAFKA_MOST_SPECIFIC_DEFAULT);
            connection.setRequestProperty("Content-Length", entityLength);
        }
        connection.setDoInput(true);
        connection.setUseCaches(false);
        if (entity != null) {
            connection.setDoOutput(true);
            OutputStream os = connection.getOutputStream();
            os.write(entity);
            os.flush();
            os.close();
        }

        int responseStatus = connection.getResponseCode();
        if (responseStatus >= 400) {
            InputStream es = connection.getErrorStream();
            ErrorMessage errorMessage = jsonDeserializer.readValue(es, ErrorMessage.class);
            es.close();
            throw new RuntimeException(String.format("Unexpected HTTP error status %d for %s request to %s: %s",
                    responseStatus, method, target, errorMessage.getMessage()));
        }
        if (responseStatus != HttpURLConnection.HTTP_NO_CONTENT) {
            InputStream is = connection.getInputStream();
            T result = serializer.readValue(is, responseFormat);
            is.close();
            return result;
        }
        return null;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
    }
}

---

From source file:edu.purdue.cybercenter.dm.storage.GlobusStorageFileManager.java

private Map<String, Object> getResponse(HttpURLConnection connection) throws IOException {
    Map<String, Object> response;

    int responseCode = connection.getResponseCode();
    System.out.println("response code: " + responseCode);

    if (responseCode >= 200 && responseCode < 300) {
        InputStream inputStream = connection.getInputStream();
        String input = IOUtils.toString(inputStream);
        response = Helper.deserialize(input, Map.class);
    } else {/*from   ww  w . j  a  v  a2s .  c  o m*/
        InputStream errorStream = connection.getErrorStream();
        String error = IOUtils.toString(errorStream);
        response = Helper.deserialize(error, Map.class);
    }

    return response;
}

---

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