Example usage for java.net HttpURLConnection setReadTimeout

Introduction

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

Prototype

public void setReadTimeout(int timeout) 

Source Link

Document

Sets the read timeout to a specified timeout, in milliseconds.

Usage

From source file:org.digitalcampus.oppia.task.DownloadMediaTask.java

@Override
protected Payload doInBackground(Payload... params) {
    Payload payload = params[0];/*from  w  w w .jav a 2s. c  om*/
    for (Object o : payload.getData()) {
        Media m = (Media) o;
        File file = new File(MobileLearning.MEDIA_PATH, m.getFilename());
        try {

            URL u = new URL(m.getDownloadUrl());
            HttpURLConnection c = (HttpURLConnection) u.openConnection();
            c.setRequestMethod("GET");
            c.setDoOutput(true);
            c.connect();
            c.setConnectTimeout(
                    Integer.parseInt(prefs.getString(ctx.getString(R.string.prefs_server_timeout_connection),
                            ctx.getString(R.string.prefServerTimeoutConnection))));
            c.setReadTimeout(
                    Integer.parseInt(prefs.getString(ctx.getString(R.string.prefs_server_timeout_response),
                            ctx.getString(R.string.prefServerTimeoutResponse))));

            int fileLength = c.getContentLength();

            DownloadProgress dp = new DownloadProgress();
            dp.setMessage(m.getFilename());
            dp.setProgress(0);
            publishProgress(dp);

            FileOutputStream f = new FileOutputStream(file);
            InputStream in = c.getInputStream();

            MessageDigest md = MessageDigest.getInstance("MD5");
            in = new DigestInputStream(in, md);

            byte[] buffer = new byte[8192];
            int len1 = 0;
            long total = 0;
            int progress = 0;
            while ((len1 = in.read(buffer)) > 0) {
                total += len1;
                progress = (int) (total * 100) / fileLength;
                if (progress > 0) {
                    dp.setProgress(progress);
                    publishProgress(dp);
                }
                f.write(buffer, 0, len1);
            }
            f.close();

            dp.setProgress(100);
            publishProgress(dp);

            // check the file digest matches, otherwise delete the file 
            // (it's either been a corrupted download or it's the wrong file)
            byte[] digest = md.digest();
            String resultMD5 = "";

            for (int i = 0; i < digest.length; i++) {
                resultMD5 += Integer.toString((digest[i] & 0xff) + 0x100, 16).substring(1);
            }

            Log.d(TAG, "supplied   digest: " + m.getDigest());
            Log.d(TAG, "calculated digest: " + resultMD5);

            if (!resultMD5.contains(m.getDigest())) {
                this.deleteFile(file);
                payload.setResult(false);
                payload.setResultResponse(ctx.getString(R.string.error_media_download));
            } else {
                payload.setResult(true);
                payload.setResultResponse(ctx.getString(R.string.success_media_download, m.getFilename()));
            }
        } catch (ClientProtocolException e1) {
            e1.printStackTrace();
            payload.setResult(false);
            payload.setResultResponse(ctx.getString(R.string.error_media_download));
        } catch (IOException e1) {
            e1.printStackTrace();
            this.deleteFile(file);
            payload.setResult(false);
            payload.setResultResponse(ctx.getString(R.string.error_media_download));
        } catch (NoSuchAlgorithmException e) {
            if (!MobileLearning.DEVELOPER_MODE) {
                BugSenseHandler.sendException(e);
            } else {
                e.printStackTrace();
            }
            payload.setResult(false);
            payload.setResultResponse(ctx.getString(R.string.error_media_download));
        }
    }
    return payload;
}

---

From source file:de.langerhans.wallet.ui.send.RequestWalletBalanceTask.java

public void requestWalletBalance(final Address address) {
    backgroundHandler.post(new Runnable() {
        @Override//from  ww  w  .  j  a  v a 2 s. co m
        public void run() {
            // Use either dogechain or chain.so
            List<String> urls = new ArrayList<String>(2);
            urls.add(Constants.DOGECHAIN_API_URL);
            urls.add(Constants.CHAINSO_API_URL);
            Collections.shuffle(urls, new Random(System.nanoTime()));

            final StringBuilder url = new StringBuilder(urls.get(0));
            url.append(address.toString());

            log.debug("trying to request wallet balance from {}", url);

            HttpURLConnection connection = null;
            Reader reader = null;

            try {
                connection = (HttpURLConnection) new URL(url.toString()).openConnection();

                connection.setInstanceFollowRedirects(false);
                connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setUseCaches(false);
                connection.setDoInput(true);
                connection.setDoOutput(false);

                connection.setRequestMethod("GET");
                if (userAgent != null)
                    connection.addRequestProperty("User-Agent", userAgent);
                connection.connect();

                final int responseCode = connection.getResponseCode();
                if (responseCode == HttpURLConnection.HTTP_OK) {
                    reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024),
                            Charsets.UTF_8);
                    final StringBuilder content = new StringBuilder();
                    Io.copy(reader, content);

                    final JSONObject json = new JSONObject(content.toString());

                    final int success = json.getInt("success");
                    if (success != 1)
                        throw new IOException("api status " + success + " when fetching unspent outputs");

                    final JSONArray jsonOutputs = json.getJSONArray("unspent_outputs");

                    final Map<Sha256Hash, Transaction> transactions = new HashMap<Sha256Hash, Transaction>(
                            jsonOutputs.length());

                    for (int i = 0; i < jsonOutputs.length(); i++) {
                        final JSONObject jsonOutput = jsonOutputs.getJSONObject(i);

                        final Sha256Hash uxtoHash = new Sha256Hash(jsonOutput.getString("tx_hash"));
                        final int uxtoIndex = jsonOutput.getInt("tx_output_n");
                        final byte[] uxtoScriptBytes = HEX.decode(jsonOutput.getString("script"));
                        final Coin uxtoValue = Coin.valueOf(Long.parseLong(jsonOutput.getString("value")));

                        Transaction tx = transactions.get(uxtoHash);
                        if (tx == null) {
                            tx = new FakeTransaction(Constants.NETWORK_PARAMETERS, uxtoHash);
                            tx.getConfidence().setConfidenceType(ConfidenceType.BUILDING);
                            transactions.put(uxtoHash, tx);
                        }

                        if (tx.getOutputs().size() > uxtoIndex)
                            throw new IllegalStateException("cannot reach index " + uxtoIndex
                                    + ", tx already has " + tx.getOutputs().size() + " outputs");

                        // fill with dummies
                        while (tx.getOutputs().size() < uxtoIndex)
                            tx.addOutput(new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                    Coin.NEGATIVE_SATOSHI, new byte[] {}));

                        // add the real output
                        final TransactionOutput output = new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                uxtoValue, uxtoScriptBytes);
                        tx.addOutput(output);
                    }

                    log.info("fetched unspent outputs from {}", url);

                    onResult(transactions.values());
                } else {
                    final String responseMessage = connection.getResponseMessage();

                    log.info("got http error '{}: {}' from {}", responseCode, responseMessage, url);

                    onFail(R.string.error_http, responseCode, responseMessage);
                }
            } catch (final JSONException x) {
                log.info("problem parsing json from " + url, x);

                onFail(R.string.error_parse, x.getMessage());
            } catch (final IOException x) {
                log.info("problem querying unspent outputs from " + url, x);

                onFail(R.string.error_io, x.getMessage());
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (final IOException x) {
                        // swallow
                    }
                }

                if (connection != null)
                    connection.disconnect();
            }
        }
    });
}

---

From source file:libthrift091.transport.THttpClient.java

public void flush() throws TTransportException {

    if (null != this.client) {
        flushUsingHttpClient();/*from w  w  w.  j a v  a 2 s  . c o  m*/
        return;
    }

    // Extract request and reset buffer
    byte[] data = requestBuffer_.toByteArray();
    requestBuffer_.reset();

    try {
        // Create connection object
        HttpURLConnection connection = (HttpURLConnection) url_.openConnection();

        // Timeouts, only if explicitly set
        if (connectTimeout_ > 0) {
            connection.setConnectTimeout(connectTimeout_);
        }
        if (readTimeout_ > 0) {
            connection.setReadTimeout(readTimeout_);
        }

        // Make the request
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/x-thrift");
        connection.setRequestProperty("Accept", "application/x-thrift");
        connection.setRequestProperty("User-Agent", "Java/THttpClient");
        if (customHeaders_ != null) {
            for (Map.Entry<String, String> header : customHeaders_.entrySet()) {
                connection.setRequestProperty(header.getKey(), header.getValue());
            }
        }
        connection.setDoOutput(true);
        connection.connect();
        connection.getOutputStream().write(data);

        int responseCode = connection.getResponseCode();
        if (responseCode != HttpURLConnection.HTTP_OK) {
            throw new TTransportException("HTTP Response code: " + responseCode);
        }

        // Read the responses
        inputStream_ = connection.getInputStream();

    } catch (IOException iox) {
        throw new TTransportException(iox);
    }
}

---

From source file:com.zhonghui.tool.controller.HttpClient.java

/**
 * get/*from   w ww. java 2 s .  c o m*/
 *
 * @return
 * @throws ProtocolException
 */
private HttpURLConnection createConnectionGet(String encoding) throws ProtocolException {
    HttpURLConnection httpURLConnection = null;
    try {
        httpURLConnection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
    httpURLConnection.setConnectTimeout(this.connectionTimeout);// 
    httpURLConnection.setReadTimeout(this.readTimeOut);// ?
    httpURLConnection.setUseCaches(false);// ?
    httpURLConnection.setRequestProperty("Content-type",
            "application/x-www-form-urlencoded;charset=" + encoding);
    httpURLConnection.setRequestMethod("GET");
    return httpURLConnection;
}

---

From source file:com.zhonghui.tool.controller.HttpClient.java

/**
 * Post//from  w  w  w. ja  v  a2 s. com
 *
 * @return
 * @throws ProtocolException
 */
private HttpURLConnection createConnection(String encoding) throws ProtocolException {
    HttpURLConnection httpURLConnection = null;
    try {
        httpURLConnection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
    httpURLConnection.setConnectTimeout(this.connectionTimeout);// 
    httpURLConnection.setReadTimeout(this.readTimeOut);// ?
    httpURLConnection.setDoInput(true); // ? post?
    httpURLConnection.setDoOutput(true); // ? post?
    httpURLConnection.setUseCaches(false);// ?
    httpURLConnection.setRequestProperty("Content-type",
            "application/x-www-form-urlencoded;charset=" + encoding);
    httpURLConnection.setRequestMethod("POST");
    return httpURLConnection;
}

---

From source file:edu.usf.cutr.opentripplanner.android.tasks.MetadataRequest.java

protected GraphMetadata doInBackground(String... reqs) {
    String prefix = PreferenceManager.getDefaultSharedPreferences(context)
            .getString(OTPApp.PREFERENCE_KEY_FOLDER_STRUCTURE_PREFIX, OTPApp.FOLDER_STRUCTURE_PREFIX_NEW);
    String u = reqs[0] + prefix + OTPApp.METADATA_LOCATION;
    Log.d(OTPApp.TAG, "URL: " + u);

    HttpURLConnection urlConnection = null;
    GraphMetadata metadata = null;//  ww  w. j  a v  a 2s  . c o  m

    try {
        URL url = new URL(u);
        if (mapper == null) {
            mapper = new ObjectMapper();
        }
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestProperty("Accept", "application/json");
        urlConnection.setConnectTimeout(OTPApp.HTTP_CONNECTION_TIMEOUT);
        urlConnection.setReadTimeout(OTPApp.HTTP_SOCKET_TIMEOUT);
        metadata = mapper.readValue(urlConnection.getInputStream(), GraphMetadata.class);
    } catch (IOException e) {
        Log.e(OTPApp.TAG, "Error fetching JSON or XML: " + e);
        e.printStackTrace();
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
    return metadata;
}

---

From source file:ja.ohac.wallet.ui.send.RequestWalletBalanceTask.java

public void requestWalletBalance(final Address... addresses) {
    backgroundHandler.post(new Runnable() {
        @Override// ww w  .  j a v  a  2  s. c  o  m
        public void run() {
            final StringBuilder url = new StringBuilder(Constants.BITEASY_API_URL);
            url.append("unspent-outputs");
            url.append("?per_page=MAX");
            for (final Address address : addresses)
                url.append("&address[]=").append(address.toString());

            log.debug("trying to request wallet balance from {}", url);

            HttpURLConnection connection = null;
            Reader reader = null;

            try {
                connection = (HttpURLConnection) new URL(url.toString()).openConnection();

                connection.setInstanceFollowRedirects(false);
                connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setUseCaches(false);
                connection.setDoInput(true);
                connection.setDoOutput(false);

                connection.setRequestMethod("GET");
                if (userAgent != null)
                    connection.addRequestProperty("User-Agent", userAgent);
                connection.connect();

                final int responseCode = connection.getResponseCode();
                if (responseCode == HttpURLConnection.HTTP_OK) {
                    reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024),
                            Charsets.UTF_8);
                    final StringBuilder content = new StringBuilder();
                    Io.copy(reader, content);

                    final JSONObject json = new JSONObject(content.toString());

                    final int status = json.getInt("status");
                    if (status != 200)
                        throw new IOException("api status " + status + " when fetching unspent outputs");

                    final JSONObject jsonData = json.getJSONObject("data");

                    final JSONObject jsonPagination = jsonData.getJSONObject("pagination");

                    if (!"false".equals(jsonPagination.getString("next_page")))
                        throw new IllegalStateException("result set too big");

                    final JSONArray jsonOutputs = jsonData.getJSONArray("outputs");

                    final Map<Sha256Hash, Transaction> transactions = new HashMap<Sha256Hash, Transaction>(
                            jsonOutputs.length());

                    for (int i = 0; i < jsonOutputs.length(); i++) {
                        final JSONObject jsonOutput = jsonOutputs.getJSONObject(i);

                        if (jsonOutput.getInt("is_spent") != 0)
                            throw new IllegalStateException("UXTO not spent");

                        final Sha256Hash uxtoHash = new Sha256Hash(jsonOutput.getString("transaction_hash"));
                        final int uxtoIndex = jsonOutput.getInt("transaction_index");
                        final byte[] uxtoScriptBytes = BaseEncoding.base16().lowerCase()
                                .decode(jsonOutput.getString("script_pub_key"));
                        final BigInteger uxtoValue = new BigInteger(jsonOutput.getString("value"));

                        Transaction tx = transactions.get(uxtoHash);
                        if (tx == null) {
                            tx = new FakeTransaction(Constants.NETWORK_PARAMETERS, uxtoHash);
                            tx.getConfidence().setConfidenceType(ConfidenceType.BUILDING);
                            transactions.put(uxtoHash, tx);
                        }

                        if (tx.getOutputs().size() > uxtoIndex)
                            throw new IllegalStateException("cannot reach index " + uxtoIndex
                                    + ", tx already has " + tx.getOutputs().size() + " outputs");

                        // fill with dummies
                        while (tx.getOutputs().size() < uxtoIndex)
                            tx.addOutput(new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                    Coin.NEGATIVE_SATOSHI, new byte[] {}));

                        // add the real output
                        final TransactionOutput output = new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                Coin.valueOf(uxtoValue.longValue()), uxtoScriptBytes);
                        tx.addOutput(output);
                    }

                    log.info("fetched unspent outputs from {}", url);

                    onResult(transactions.values());
                } else {
                    final String responseMessage = connection.getResponseMessage();

                    log.info("got http error '{}: {}' from {}", responseCode, responseMessage, url);

                    onFail(R.string.error_http, responseCode, responseMessage);
                }
            } catch (final JSONException x) {
                log.info("problem parsing json from " + url, x);

                onFail(R.string.error_parse, x.getMessage());
            } catch (final IOException x) {
                log.info("problem querying unspent outputs from " + url, x);

                onFail(R.string.error_io, x.getMessage());
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (final IOException x) {
                        // swallow
                    }
                }

                if (connection != null)
                    connection.disconnect();
            }
        }
    });
}

---

From source file:edu.usf.cutr.opentripplanner.android.tasks.BikeRentalLoad.java

protected BikeRentalStationList doInBackground(String... reqs) {
    String prefix = PreferenceManager.getDefaultSharedPreferences(context)
            .getString(OTPApp.PREFERENCE_KEY_FOLDER_STRUCTURE_PREFIX, OTPApp.FOLDER_STRUCTURE_PREFIX_NEW);
    String u = reqs[0] + prefix + OTPApp.BIKE_RENTAL_LOCATION;
    Log.d(OTPApp.TAG, "URL: " + u);

    HttpURLConnection urlConnection = null;
    BikeRentalStationList bikeRentalStationList = null;

    try {/*from  w  ww. ja va 2s . c o  m*/
        URL url = new URL(u);
        if (mapper == null) {
            mapper = new ObjectMapper();
        }
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestProperty("Accept", "application/json");
        urlConnection.setConnectTimeout(OTPApp.HTTP_CONNECTION_TIMEOUT);
        urlConnection.setReadTimeout(OTPApp.HTTP_SOCKET_TIMEOUT);
        bikeRentalStationList = mapper.readValue(urlConnection.getInputStream(), BikeRentalStationList.class);
    } catch (IOException e) {
        Log.e(OTPApp.TAG, "Error fetching JSON or XML: " + e);
        e.printStackTrace();
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
    return bikeRentalStationList;
}

---

From source file:org.hupo.psi.mi.psicquic.registry.PsicquicRegistryStatusChecker.java

private void checkStatus(ServiceType serviceStatus) {
    HttpURLConnection urlConnection = null;
    InputStream contentStream = null;
    InputStream countStream = null;
    try {//from w  ww .ja  v  a2  s  .  co  m

        final URL versionUrl = new URL(serviceStatus.getRestUrl() + "version");
        final URL countURL = new URL(serviceStatus.getRestUrl() + "query/*?format=count");

        urlConnection = (HttpURLConnection) versionUrl.openConnection();
        urlConnection.setConnectTimeout(threadTimeOut * 1000);
        urlConnection.setReadTimeout(threadTimeOut * 1000);

        urlConnection.connect();

        int code = urlConnection.getResponseCode();

        if (HttpURLConnection.HTTP_OK == code) {

            serviceStatus.setActive(true);

            final String version;
            final String strCount;

            //TODO Add a double check to know if the service is active
            // or not add a catch block for the exceptions

            contentStream = (InputStream) urlConnection.getContent();
            version = IOUtils.toString(contentStream);
            serviceStatus.setVersion(version);

            countStream = (InputStream) countURL.getContent();
            strCount = IOUtils.toString(countStream);
            serviceStatus.setCount(Long.valueOf(strCount));
        } else {
            serviceStatus.setActive(false);
        }

    } catch (Throwable e) {
        serviceStatus.setActive(false);
    } finally {
        if (contentStream != null) {
            try {
                contentStream.close();
            } catch (IOException e) {
                log.error("Cannot close psicquic content stream", e);
            }
        }
        if (countStream != null) {
            try {
                countStream.close();
            } catch (IOException e) {
                log.error("Cannot close psicquic count stream", e);
            }
        }
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

---

From source file:de.schildbach.wallet.ui.send.RequestWalletBalanceTask.java

public void requestWalletBalance(final Address... addresses) {
    backgroundHandler.post(new Runnable() {
        @Override//from   w w w.  j a v  a2  s.com
        public void run() {
            final StringBuilder url = new StringBuilder(Constants.BITEASY_API_URL);
            url.append("unspent-outputs");
            url.append("?per_page=MAX");
            for (final Address address : addresses)
                url.append("&address[]=").append(address.toString());

            log.debug("trying to request wallet balance from {}", url);

            HttpURLConnection connection = null;
            Reader reader = null;

            try {
                connection = (HttpURLConnection) new URL(url.toString()).openConnection();

                connection.setInstanceFollowRedirects(false);
                connection.setConnectTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setReadTimeout(Constants.HTTP_TIMEOUT_MS);
                connection.setUseCaches(false);
                connection.setDoInput(true);
                connection.setDoOutput(false);

                connection.setRequestMethod("GET");
                if (userAgent != null)
                    connection.addRequestProperty("User-Agent", userAgent);
                connection.connect();

                final int responseCode = connection.getResponseCode();
                if (responseCode == HttpURLConnection.HTTP_OK) {
                    reader = new InputStreamReader(new BufferedInputStream(connection.getInputStream(), 1024),
                            Charsets.UTF_8);
                    final StringBuilder content = new StringBuilder();
                    Io.copy(reader, content);

                    final JSONObject json = new JSONObject(content.toString());

                    final int status = json.getInt("status");
                    if (status != 200)
                        throw new IOException("api status " + status + " when fetching unspent outputs");

                    final JSONObject jsonData = json.getJSONObject("data");

                    final JSONObject jsonPagination = jsonData.getJSONObject("pagination");

                    if (!"false".equals(jsonPagination.getString("next_page")))
                        throw new IllegalStateException("result set too big");

                    final JSONArray jsonOutputs = jsonData.getJSONArray("outputs");

                    final Map<Sha256Hash, Transaction> transactions = new HashMap<Sha256Hash, Transaction>(
                            jsonOutputs.length());

                    for (int i = 0; i < jsonOutputs.length(); i++) {
                        final JSONObject jsonOutput = jsonOutputs.getJSONObject(i);

                        if (jsonOutput.getInt("is_spent") != 0)
                            throw new IllegalStateException("UXTO not spent");

                        final Sha256Hash uxtoHash = new Sha256Hash(jsonOutput.getString("transaction_hash"));
                        final int uxtoIndex = jsonOutput.getInt("transaction_index");
                        final byte[] uxtoScriptBytes = HEX.decode(jsonOutput.getString("script_pub_key"));
                        final Coin uxtoValue = Coin.valueOf(Long.parseLong(jsonOutput.getString("value")));

                        Transaction tx = transactions.get(uxtoHash);
                        if (tx == null) {
                            tx = new FakeTransaction(Constants.NETWORK_PARAMETERS, uxtoHash);
                            tx.getConfidence().setConfidenceType(ConfidenceType.BUILDING);
                            transactions.put(uxtoHash, tx);
                        }

                        if (tx.getOutputs().size() > uxtoIndex)
                            throw new IllegalStateException("cannot reach index " + uxtoIndex
                                    + ", tx already has " + tx.getOutputs().size() + " outputs");

                        // fill with dummies
                        while (tx.getOutputs().size() < uxtoIndex)
                            tx.addOutput(new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                    Coin.NEGATIVE_SATOSHI, new byte[] {}));

                        // add the real output
                        final TransactionOutput output = new TransactionOutput(Constants.NETWORK_PARAMETERS, tx,
                                uxtoValue, uxtoScriptBytes);
                        tx.addOutput(output);
                    }

                    log.info("fetched unspent outputs from {}", url);

                    onResult(transactions.values());
                } else {
                    final String responseMessage = connection.getResponseMessage();

                    log.info("got http error '{}: {}' from {}", responseCode, responseMessage, url);

                    onFail(R.string.error_http, responseCode, responseMessage);
                }
            } catch (final JSONException x) {
                log.info("problem parsing json from " + url, x);

                onFail(R.string.error_parse, x.getMessage());
            } catch (final IOException x) {
                log.info("problem querying unspent outputs from " + url, x);

                onFail(R.string.error_io, x.getMessage());
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (final IOException x) {
                        // swallow
                    }
                }

                if (connection != null)
                    connection.disconnect();
            }
        }
    });
}

---

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