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

Example 51 with NonNull

use of android.annotation.NonNull in project android_frameworks_base by ResurrectionRemix.

the class CryptoHelper method createMac.

@NonNull
private byte[] createMac(@NonNull byte[] cipher, @NonNull byte[] iv) throws GeneralSecurityException {
    Mac mac = Mac.getInstance(MAC_ALGORITHM);
    mac.init(mMacKey);
    mac.update(cipher);
    mac.update(iv);
    return mac.doFinal();
}

Example 52 with NonNull

use of android.annotation.NonNull in project android_frameworks_base by ResurrectionRemix.

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 53 with NonNull

use of android.annotation.NonNull in project android_frameworks_base by ResurrectionRemix.

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 54 with NonNull

use of android.annotation.NonNull in project android_frameworks_base by ResurrectionRemix.

the class ManagedServices method loadComponentNamesFromSetting.

@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[] restored = settingValue.split(ENABLED_SERVICES_SEPARATOR);
    ArraySet<ComponentName> result = new ArraySet<>(restored.length);
    for (int i = 0; i < restored.length; i++) {
        ComponentName value = ComponentName.unflattenFromString(restored[i]);
        if (null != value) {
            result.add(value);
        }
    }
    return result;
}

Example 55 with NonNull

use of android.annotation.NonNull in project android_frameworks_base by ResurrectionRemix.

the class DefaultPermissionGrantPolicy method readDefaultPermissionExceptionsLPw.

@NonNull
private ArrayMap<String, List<DefaultPermissionGrant>> readDefaultPermissionExceptionsLPw() {
    File dir = new File(Environment.getRootDirectory(), "etc/default-permissions");
    if (!dir.exists() || !dir.isDirectory() || !dir.canRead()) {
        return new ArrayMap<>(0);
    }
    File[] files = dir.listFiles();
    if (files == null) {
        return new ArrayMap<>(0);
    }
    ArrayMap<String, List<DefaultPermissionGrant>> grantExceptions = new ArrayMap<>();
    // Iterate over the files in the directory and scan .xml files
    for (File file : files) {
        if (!file.getPath().endsWith(".xml")) {
            Slog.i(TAG, "Non-xml file " + file + " in " + dir + " directory, ignoring");
            continue;
        }
        if (!file.canRead()) {
            Slog.w(TAG, "Default permissions file " + file + " cannot be read");
            continue;
        }
        try (InputStream str = new BufferedInputStream(new FileInputStream(file))) {
            XmlPullParser parser = Xml.newPullParser();
            parser.setInput(str, null);
            parse(parser, grantExceptions);
        } catch (XmlPullParserException | IOException e) {
            Slog.w(TAG, "Error reading default permissions file " + file, e);
        }
    }
    return grantExceptions;
}