Example usage for android.content Context openFileInput

Introduction

In this page you can find the example usage for android.content Context openFileInput.

Prototype

public abstract FileInputStream openFileInput(String name) throws FileNotFoundException;

Source Link

Document

Open a private file associated with this Context's application package for reading.

Usage

From source file:net.sf.xfd.provider.PublicProvider.java

private static @Nullable Key getSalt(Context c) {
    if (cookieSalt == null) {
        synchronized (PublicProvider.class) {
            if (cookieSalt == null) {
                try {
                    try (ObjectInputStream oos = new ObjectInputStream(c.openFileInput(COOKIE_FILE))) {
                        cookieSalt = (Key) oos.readObject();
                    } catch (ClassNotFoundException | IOException e) {
                        LogUtil.logCautiously("Unable to read key file, probably corrupted or missing", e);

                        final File corrupted = c.getFileStreamPath(COOKIE_FILE);

                        //noinspection ResultOfMethodCallIgnored
                        corrupted.delete();
                    }//from  w ww.j  a v  a  2 s .  c o m

                    if (cookieSalt != null) {
                        return cookieSalt;
                    }

                    final KeyGenerator keygen = KeyGenerator.getInstance("HmacSHA1");
                    keygen.init(COOKIE_SIZE * Byte.SIZE);

                    cookieSalt = keygen.generateKey();

                    try (ObjectOutputStream oos = new ObjectOutputStream(
                            c.openFileOutput(COOKIE_FILE, Context.MODE_PRIVATE))) {
                        oos.writeObject(cookieSalt);
                    } catch (IOException e) {
                        LogUtil.logCautiously("Failed to save key file", e);

                        return null;
                    }
                } catch (NoSuchAlgorithmException e) {
                    throw new AssertionError("failed to initialize hash functions", e);
                }
            }
        }
    }

    return cookieSalt;
}

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From source file:com.entertailion.android.slideshow.utils.Utils.java

/**
 * Get string version of HTML for a web page. Cache HTML for future acccess.
 * //from w w  w.ja va  2  s .  com
 * @param context
 * @param url
 * @param refresh
 * @return
 */
public synchronized static final String getCachedData(Context context, String url, boolean refresh) {
    Log.d(LOG_TAG, "getCachedData: " + url);
    String data = null;
    boolean exists = false;
    String cleanUrl = "cache." + clean(url);
    File file = context.getFileStreamPath(cleanUrl);
    if (file != null && file.exists()) {
        exists = true;
    }

    if (!refresh && exists) {
        try {
            FileInputStream fis = context.openFileInput(cleanUrl);
            BufferedReader br = new BufferedReader(new InputStreamReader(fis));
            StringBuffer buffer = new StringBuffer();
            for (String line; (line = br.readLine()) != null;) {
                buffer.append(line);
            }
            fis.close();
            data = buffer.toString();
        } catch (Exception e) {
            Log.e(LOG_TAG, "Error getData: " + url, e);
        }
    } else {
        boolean found = false;
        StringBuilder builder = new StringBuilder();
        try {
            InputStream stream = new HttpRequestHelper().getHttpStream(url);
            BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
            String line;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            stream.close();
            found = true;
        } catch (IOException e) {
            Log.e(LOG_TAG, "Error getData: " + url, e);
        } catch (Exception e) {
            Log.e(LOG_TAG, "stream is NULL");
        }
        data = builder.toString();
        if (!found && exists) {
            try {
                FileInputStream fis = context.openFileInput(cleanUrl);
                BufferedReader br = new BufferedReader(new InputStreamReader(fis));
                StringBuffer buffer = new StringBuffer();
                for (String line; (line = br.readLine()) != null;) {
                    buffer.append(line);
                }
                fis.close();
                data = buffer.toString();
            } catch (Exception e) {
                Log.e(LOG_TAG, "Error getData: " + url, e);
            }
        }
        if (data != null && data.trim().length() > 0) {
            try {
                FileOutputStream fos = context.openFileOutput(cleanUrl, Context.MODE_PRIVATE);
                fos.write(data.getBytes());
                fos.close();
            } catch (FileNotFoundException e) {
                Log.e(LOG_TAG, "Error getData: " + url, e);
            } catch (IOException e) {
                Log.e(LOG_TAG, "Error getData: " + url, e);
            }
        }
    }
    return data;
}

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From source file:com.farmerbb.secondscreen.util.U.java

public static String getProfileTitle(Context context, String filename) throws IOException {
    // Open the file on disk
    FileInputStream input = context.openFileInput(filename);
    InputStreamReader reader = new InputStreamReader(input);
    BufferedReader buffer = new BufferedReader(reader);

    // Load the file
    String line = buffer.readLine();

    // Close file on disk
    reader.close();/*from   w w w . j a  v a2s .  c  om*/

    return (line);
}

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From source file:org.wso2.iot.agent.utils.CommonUtils.java

/**
 * Generates keys, CSR and certificates for the devices.
 * @param context - Application context.
 * @param listener - DeviceCertCreationListener which provide device .
 *//*from ww  w.  jav  a 2 s.c om*/
public static void generateDeviceCertificate(final Context context, final DeviceCertCreationListener listener)
        throws AndroidAgentException {

    if (context.getFileStreamPath(Constants.DEVICE_CERTIFCATE_NAME).exists()) {
        try {
            listener.onDeviceCertCreated(
                    new BufferedInputStream(context.openFileInput(Constants.DEVICE_CERTIFCATE_NAME)));
        } catch (FileNotFoundException e) {
            Log.e(TAG, e.getMessage());
        }
    } else {

        try {
            ServerConfig utils = new ServerConfig();
            final KeyPair deviceKeyPair = KeyPairGenerator.getInstance(Constants.DEVICE_KEY_TYPE)
                    .generateKeyPair();
            X500Principal subject = new X500Principal(Constants.DEVICE_CSR_INFO);
            PKCS10CertificationRequest csr = new PKCS10CertificationRequest(Constants.DEVICE_KEY_ALGO, subject,
                    deviceKeyPair.getPublic(), null, deviceKeyPair.getPrivate());

            EndPointInfo endPointInfo = new EndPointInfo();
            endPointInfo.setHttpMethod(org.wso2.iot.agent.proxy.utils.Constants.HTTP_METHODS.POST);
            endPointInfo.setEndPoint(utils.getAPIServerURL(context) + Constants.SCEP_ENDPOINT);
            endPointInfo.setRequestParams(Base64.encodeToString(csr.getEncoded(), Base64.DEFAULT));

            new APIController().invokeAPI(endPointInfo, new APIResultCallBack() {
                @Override
                public void onReceiveAPIResult(Map<String, String> result, int requestCode) {
                    try {
                        CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
                        InputStream in = new ByteArrayInputStream(
                                Base64.decode(result.get("response"), Base64.DEFAULT));
                        X509Certificate cert = (X509Certificate) certFactory.generateCertificate(in);
                        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                        KeyStore keyStore = KeyStore.getInstance("PKCS12");
                        keyStore.load(null);
                        keyStore.setKeyEntry(Constants.DEVICE_CERTIFCATE_ALIAS,
                                (Key) deviceKeyPair.getPrivate(),
                                Constants.DEVICE_CERTIFCATE_PASSWORD.toCharArray(),
                                new java.security.cert.Certificate[] { cert });
                        keyStore.store(byteArrayOutputStream,
                                Constants.DEVICE_CERTIFCATE_PASSWORD.toCharArray());
                        FileOutputStream outputStream = context.openFileOutput(Constants.DEVICE_CERTIFCATE_NAME,
                                Context.MODE_PRIVATE);
                        outputStream.write(byteArrayOutputStream.toByteArray());
                        byteArrayOutputStream.close();
                        outputStream.close();
                        try {
                            listener.onDeviceCertCreated(new BufferedInputStream(
                                    context.openFileInput(Constants.DEVICE_CERTIFCATE_NAME)));
                        } catch (FileNotFoundException e) {
                            Log.e(TAG, e.getMessage());
                        }
                    } catch (CertificateException | KeyStoreException | NoSuchAlgorithmException
                            | IOException e) {
                        Log.e(TAG, e.getMessage(), e);
                    }
                }
            }, Constants.SCEP_REQUEST_CODE, context, true);

        } catch (NoSuchAlgorithmException e) {
            throw new AndroidAgentException("No algorithm for key generation", e);
        } catch (SignatureException e) {
            throw new AndroidAgentException("Invalid Signature", e);
        } catch (NoSuchProviderException e) {
            throw new AndroidAgentException("Invalid provider", e);
        } catch (InvalidKeyException e) {
            throw new AndroidAgentException("Invalid key", e);
        }
    }
}

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From source file:com.thoughtmetric.tl.TLLib.java

public static Object[] tagNodeWithEditText(HtmlCleaner cleaner, URL url, Handler handler, Context context,
        String fullTag, boolean login) throws IOException {
    Object[] ret = new Object[2];

    handler.sendEmptyMessage(PROGRESS_CONNECTING);

    DefaultHttpClient httpclient = new DefaultHttpClient();
    if (login) {//from   w w  w  . j a  v a  2s  .c  om
        httpclient.setCookieStore(cookieStore);
    }
    HttpGet httpGet = new HttpGet(url.toExternalForm());
    HttpResponse response = httpclient.execute(httpGet);

    handler.sendEmptyMessage(PROGRESS_DOWNLOADING);
    InputStream is = response.getEntity().getContent();
    BufferedReader br = new BufferedReader(new InputStreamReader(context.openFileInput(TEMP_FILE_NAME)));
    ret[0] = TagNodeFromURLHelper(is, fullTag, handler, context, cleaner);
    ret[1] = parseTextArea(br);

    return ret;
}

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From source file:net.fizzl.redditengine.impl.PersistentCookieStore.java

/**
 * Load Cookies from a file/* ww  w  .j ava 2  s .  c o m*/
 */
private void load() {
    RedditApi api = DefaultRedditApi.getInstance();
    Context ctx = api.getContext();
    try {
        FileInputStream fis = ctx.openFileInput(cookiestore);
        ObjectInputStream ois = new ObjectInputStream(fis);
        SerializableCookieStore tempStore = (SerializableCookieStore) ois.readObject();

        super.clear();
        for (Cookie c : tempStore.getCookies()) {
            super.addCookie(c);
        }

        ois.close();
        fis.close();
    } catch (FileNotFoundException e) {
        Log.w(getClass().getName(), e.getMessage());
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:com.apptentive.android.sdk.comm.ApptentiveClient.java

private static ApptentiveHttpResponse performMultipartFilePost(Context context, String oauthToken, String uri,
        String postBody, StoredFile storedFile) {
    Log.d("Performing multipart request to %s", uri);

    ApptentiveHttpResponse ret = new ApptentiveHttpResponse();

    if (storedFile == null) {
        Log.e("StoredFile is null. Unable to send.");
        return ret;
    }//from   w ww.  j  a  v  a  2s .c o  m

    int bytesRead;
    int bufferSize = 4096;
    byte[] buffer;

    String lineEnd = "\r\n";
    String twoHyphens = "--";
    String boundary = UUID.randomUUID().toString();

    HttpURLConnection connection;
    DataOutputStream os = null;
    InputStream is = null;

    try {
        is = context.openFileInput(storedFile.getLocalFilePath());

        // Set up the request.
        URL url = new URL(uri);
        connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setUseCaches(false);
        connection.setConnectTimeout(DEFAULT_HTTP_CONNECT_TIMEOUT);
        connection.setReadTimeout(DEFAULT_HTTP_SOCKET_TIMEOUT);
        connection.setRequestMethod("POST");

        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
        connection.setRequestProperty("Authorization", "OAuth " + oauthToken);
        connection.setRequestProperty("Accept", "application/json");
        connection.setRequestProperty("X-API-Version", API_VERSION);
        connection.setRequestProperty("User-Agent", getUserAgentString());

        StringBuilder requestText = new StringBuilder();

        // Write form data
        requestText.append(twoHyphens).append(boundary).append(lineEnd);
        requestText.append("Content-Disposition: form-data; name=\"message\"").append(lineEnd);
        requestText.append("Content-Type: text/plain").append(lineEnd);
        requestText.append(lineEnd);
        requestText.append(postBody);
        requestText.append(lineEnd);

        // Write file attributes.
        requestText.append(twoHyphens).append(boundary).append(lineEnd);
        requestText.append(String.format("Content-Disposition: form-data; name=\"file\"; filename=\"%s\"",
                storedFile.getFileName())).append(lineEnd);
        requestText.append("Content-Type: ").append(storedFile.getMimeType()).append(lineEnd);
        requestText.append(lineEnd);

        Log.d("Post body: " + requestText);

        // Open an output stream.
        os = new DataOutputStream(connection.getOutputStream());

        // Write the text so far.
        os.writeBytes(requestText.toString());

        try {
            // Write the actual file.
            buffer = new byte[bufferSize];
            while ((bytesRead = is.read(buffer, 0, bufferSize)) > 0) {
                os.write(buffer, 0, bytesRead);
            }
        } catch (IOException e) {
            Log.d("Error writing file bytes to HTTP connection.", e);
            ret.setBadPayload(true);
            throw e;
        }

        os.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
        os.close();

        ret.setCode(connection.getResponseCode());
        ret.setReason(connection.getResponseMessage());

        // TODO: These streams may not be ready to read now. Put this in a new thread.
        // Read the normal response.
        InputStream nis = null;
        ByteArrayOutputStream nbaos = null;
        try {
            Log.d("Sending file: " + storedFile.getLocalFilePath());
            nis = connection.getInputStream();
            nbaos = new ByteArrayOutputStream();
            byte[] eBuf = new byte[1024];
            int eRead;
            while (nis != null && (eRead = nis.read(eBuf, 0, 1024)) > 0) {
                nbaos.write(eBuf, 0, eRead);
            }
            ret.setContent(nbaos.toString());
        } catch (IOException e) {
            Log.w("Can't read return stream.", e);
        } finally {
            Util.ensureClosed(nis);
            Util.ensureClosed(nbaos);
        }

        // Read the error response.
        InputStream eis = null;
        ByteArrayOutputStream ebaos = null;
        try {
            eis = connection.getErrorStream();
            ebaos = new ByteArrayOutputStream();
            byte[] eBuf = new byte[1024];
            int eRead;
            while (eis != null && (eRead = eis.read(eBuf, 0, 1024)) > 0) {
                ebaos.write(eBuf, 0, eRead);
            }
            if (ebaos.size() > 0) {
                ret.setContent(ebaos.toString());
            }
        } catch (IOException e) {
            Log.w("Can't read error stream.", e);
        } finally {
            Util.ensureClosed(eis);
            Util.ensureClosed(ebaos);
        }

        Log.d("HTTP " + connection.getResponseCode() + ": " + connection.getResponseMessage() + "");
        Log.v(ret.getContent());
    } catch (FileNotFoundException e) {
        Log.e("Error getting file to upload.", e);
    } catch (MalformedURLException e) {
        Log.e("Error constructing url for file upload.", e);
    } catch (SocketTimeoutException e) {
        Log.w("Timeout communicating with server.");
    } catch (IOException e) {
        Log.e("Error executing file upload.", e);
    } finally {
        Util.ensureClosed(is);
        Util.ensureClosed(os);
    }
    return ret;
}

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From source file:net.sileht.lullaby.Utils.java

public Object load(Context ctx, String name) {

    try {/*from  w w w. j ava  2 s  .  c o m*/
        FileInputStream pin = ctx.openFileInput(name);
        Object objs = (new ObjectInputStream(pin)).readObject();
        pin.close();
        return objs;
    } catch (FileNotFoundException e) {
        return null;
    } catch (Exception e) {
        return null;
    }
}

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From source file:org.blanco.techmun.android.cproviders.MesasFetcher.java

private Mesas tryToLoadFromCache(Context context) {
    try {// w  ww  . j  a  v  a 2s  . c om
        FileInputStream mesasFIS = context.openFileInput("mesas.df");
        ObjectInputStream mesasOIS = new ObjectInputStream(mesasFIS);
        Mesas result = (Mesas) mesasOIS.readObject();
        mesasOIS.close();
        return result;
    } catch (IOException e) {
        Log.e("tachmun",
                "Error opening cache file for mesas in content provider. " + "No cache will be restored", e);
        return null;
    } catch (ClassNotFoundException e) {
        Log.e("tachmun", "Error in cache file for mesas in content provider. "
                + "Something is there but is not a Mesas object. Cache no restored", e);
        return null;
    }
}

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From source file:com.mobilis.android.nfc.activities.MagTekFragment.java

public static String ReadSettings(Context context, String file) throws IOException {
    FileInputStream fis = null;/*ww  w. ja va 2  s .  c  om*/
    InputStreamReader isr = null;
    String data = null;
    fis = context.openFileInput(file);
    isr = new InputStreamReader(fis);
    char[] inputBuffer = new char[fis.available()];
    isr.read(inputBuffer);
    data = new String(inputBuffer);
    isr.close();
    fis.close();
    return data;
}

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