Examples with NonNull android.annotation.NonNull used on opensource projects

Example 6 with NonNull

use of android.annotation.NonNull in project platform_frameworks_base by android.

the class AndroidKeyStoreProvider method getAndroidKeyStorePublicKey.

@NonNull
public static AndroidKeyStorePublicKey getAndroidKeyStorePublicKey(@NonNull String alias, int uid, @NonNull @KeyProperties.KeyAlgorithmEnum String keyAlgorithm, @NonNull byte[] x509EncodedForm) {
    PublicKey publicKey;
    try {
        KeyFactory keyFactory = KeyFactory.getInstance(keyAlgorithm);
        publicKey = keyFactory.generatePublic(new X509EncodedKeySpec(x509EncodedForm));
    } catch (NoSuchAlgorithmException e) {
        throw new ProviderException("Failed to obtain " + keyAlgorithm + " KeyFactory", e);
    } catch (InvalidKeySpecException e) {
        throw new ProviderException("Invalid X.509 encoding of public key", e);
    }
    if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(keyAlgorithm)) {
        return new AndroidKeyStoreECPublicKey(alias, uid, (ECPublicKey) publicKey);
    } else if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(keyAlgorithm)) {
        return new AndroidKeyStoreRSAPublicKey(alias, uid, (RSAPublicKey) publicKey);
    } else {
        throw new ProviderException("Unsupported Android Keystore public key algorithm: " + keyAlgorithm);
    }
}

Example 7 with NonNull

use of android.annotation.NonNull in project platform_frameworks_base by android.

the class ContentProvider method openPipeHelper.

/**
     * A helper function for implementing {@link #openTypedAssetFile}, for
     * creating a data pipe and background thread allowing you to stream
     * generated data back to the client.  This function returns a new
     * ParcelFileDescriptor that should be returned to the caller (the caller
     * is responsible for closing it).
     *
     * @param uri The URI whose data is to be written.
     * @param mimeType The desired type of data to be written.
     * @param opts Options supplied by caller.
     * @param args Your own custom arguments.
     * @param func Interface implementing the function that will actually
     * stream the data.
     * @return Returns a new ParcelFileDescriptor holding the read side of
     * the pipe.  This should be returned to the caller for reading; the caller
     * is responsible for closing it when done.
     */
@NonNull
public <T> ParcelFileDescriptor openPipeHelper(@NonNull final Uri uri, @NonNull final String mimeType, @Nullable final Bundle opts, @Nullable final T args, @NonNull final PipeDataWriter<T> func) throws FileNotFoundException {
    try {
        final ParcelFileDescriptor[] fds = ParcelFileDescriptor.createPipe();
        AsyncTask<Object, Object, Object> task = new AsyncTask<Object, Object, Object>() {

            @Override
            protected Object doInBackground(Object... params) {
                func.writeDataToPipe(fds[1], uri, mimeType, opts, args);
                try {
                    fds[1].close();
                } catch (IOException e) {
                    Log.w(TAG, "Failure closing pipe", e);
                }
                return null;
            }
        };
        task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Object[]) null);
        return fds[0];
    } catch (IOException e) {
        throw new FileNotFoundException("failure making pipe");
    }
}

Example 8 with NonNull

use of android.annotation.NonNull in project platform_frameworks_base by android.

the class KeyChain method toCertificate.

/** @hide */
@NonNull
public static X509Certificate toCertificate(@NonNull byte[] bytes) {
    if (bytes == null) {
        throw new IllegalArgumentException("bytes == null");
    }
    try {
        CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
        Certificate cert = certFactory.generateCertificate(new ByteArrayInputStream(bytes));
        return (X509Certificate) cert;
    } catch (CertificateException e) {
        throw new AssertionError(e);
    }
}

Example 9 with NonNull

use of android.annotation.NonNull in project platform_frameworks_base by android.

the class ConditionProviders method loadComponentNamesFromSetting.

@Override
@NonNull
protected ArraySet<ComponentName> loadComponentNamesFromSetting(String settingName, int userId) {
    final ContentResolver cr = mContext.getContentResolver();
    String settingValue = Settings.Secure.getStringForUser(cr, settingName, userId);
    if (TextUtils.isEmpty(settingValue))
        return new ArraySet<>();
    String[] packages = settingValue.split(ENABLED_SERVICES_SEPARATOR);
    ArraySet<ComponentName> result = new ArraySet<>(packages.length);
    for (int i = 0; i < packages.length; i++) {
        if (!TextUtils.isEmpty(packages[i])) {
            final ComponentName component = ComponentName.unflattenFromString(packages[i]);
            if (component != null) {
                result.addAll(queryPackageForServices(component.getPackageName(), userId));
            } else {
                result.addAll(queryPackageForServices(packages[i], userId));
            }
        }
    }
    return result;
}

Example 10 with NonNull

use of android.annotation.NonNull in project platform_frameworks_base by android.

the class TaskPersister method loadPersistedTaskIdsForUser.

@NonNull
SparseBooleanArray loadPersistedTaskIdsForUser(int userId) {
    if (mTaskIdsInFile.get(userId) != null) {
        return mTaskIdsInFile.get(userId).clone();
    }
    final SparseBooleanArray persistedTaskIds = new SparseBooleanArray();
    synchronized (mIoLock) {
        BufferedReader reader = null;
        String line;
        try {
            reader = new BufferedReader(new FileReader(getUserPersistedTaskIdsFile(userId)));
            while ((line = reader.readLine()) != null) {
                for (String taskIdString : line.split("\\s+")) {
                    int id = Integer.parseInt(taskIdString);
                    persistedTaskIds.put(id, true);
                }
            }
        } catch (FileNotFoundException e) {
        // File doesn't exist. Ignore.
        } catch (Exception e) {
            Slog.e(TAG, "Error while reading taskIds file for user " + userId, e);
        } finally {
            IoUtils.closeQuietly(reader);
        }
    }
    mTaskIdsInFile.put(userId, persistedTaskIds);
    return persistedTaskIds.clone();
}