Java Code Examples for android.content.res.AssetManager#AssetInputStream

public static JsonArray getJsonArrayFromAsset(Context context, String name, KcaDBHelper helper) {
    ContextWrapper cw = new ContextWrapper(context);
    JsonArray data = new JsonArray();
    AssetManager am = cw.getAssets();
    try {
        AssetManager.AssetInputStream ais =
                (AssetManager.AssetInputStream) am.open(name);
        byte[] bytes = ByteStreams.toByteArray(ais);
        data = new JsonParser().parse(new String(bytes)).getAsJsonArray();
        ais.close();
    } catch (IOException e1) {
        e1.printStackTrace();
        if (helper != null) helper.recordErrorLog(ERROR_TYPE_DATALOAD, name, "getJsonArrayFromStorage", "1", getStringFromException(e1));
    }
    return data;
}
 

public static JsonObject getJsonObjectFromAsset(Context context, String name, KcaDBHelper helper) {
    ContextWrapper cw = new ContextWrapper(context);
    JsonObject data = null;
    AssetManager am = cw.getAssets();
    try {
        AssetManager.AssetInputStream ais =
                (AssetManager.AssetInputStream) am.open(name);
        byte[] bytes = ByteStreams.toByteArray(ais);
        data = new JsonParser().parse(new String(bytes)).getAsJsonObject();
        ais.close();
    } catch (IOException e1) {
        e1.printStackTrace();
        if (helper != null) helper.recordErrorLog(ERROR_TYPE_DATALOAD, name, "getJsonObjectFromStorage", "1", getStringFromException(e1));
    }
    return data;
}
 

public static int loadShipTranslationDataFromStorage(Context context, String locale) {
    try {
        locale = getResourceLocaleCode(locale);
        JsonObject data = getJsonObjectFromStorage(context, KcaUtils.format("ships-%s.json", locale));
        AssetManager.AssetInputStream ais_abbr =
                (AssetManager.AssetInputStream) context.getResources().getAssets().open("en-abbr.json");
        byte[] bytes_abbr = ByteStreams.toByteArray(ais_abbr);
        JsonElement data_abbr = new JsonParser().parse(new String(bytes_abbr));

        if (data != null) {
            kcShipTranslationData = data;
            kcShipAbbrData = data_abbr.getAsJsonObject();
            return 1;
        } else {
            return -1;
        }
    } catch (IOException e) {
        return 0;
    }
}
 

public static JsonObject getJsonObjectFromAsset(Context context, String name, KcaDBHelper helper) {
    ContextWrapper cw = new ContextWrapper(context);
    JsonObject data = null;
    AssetManager am = cw.getAssets();
    try {
        AssetManager.AssetInputStream ais =
                (AssetManager.AssetInputStream) am.open(name);
        byte[] bytes = ByteStreams.toByteArray(ais);
        data = new JsonParser().parse(new String(bytes)).getAsJsonObject();
        ais.close();
    } catch (IOException e1) {
        e1.printStackTrace();
        if (helper != null) helper.recordErrorLog(ERROR_TYPE_DATALOAD, name, "getJsonObjectFromStorage", "1", getStringFromException(e1));
    }
    return data;
}
 

public static int loadSortieExpInfoFromAssets(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("exp_sortie.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement expSortieData = new JsonParser().parse(new String(bytes));
        if (expSortieData.isJsonObject()) {
            helper.putValue(DB_KEY_EXPSORTIE, expSortieData.toString());
            return 1;
        } else {
            return -1;
        }
    } catch (IOException e) {
        return 0;
    }
}
 

public static int setDefaultGameData(Context context, KcaDBHelper helper) {
    boolean valid_data = false;
    String current_version = getStringPreferences(context, PREF_KCA_DATA_VERSION);
    String default_version = context.getString(R.string.default_gamedata_version);

    if (helper.getJsonObjectValue(DB_KEY_STARTDATA) != null && KcaUtils.compareVersion(current_version, default_version)) {
        if (KcaApiData.isGameDataLoaded()) return 1;
        JsonObject start_data = helper.getJsonObjectValue(DB_KEY_STARTDATA);
        if (start_data.has("api_data") && start_data.get("api_data").isJsonObject()) {
            KcaApiData.getKcGameData(start_data.getAsJsonObject("api_data"));
            valid_data = true;
        }
    }

    if (!valid_data) {
        try {
            AssetManager assetManager = context.getAssets();
            AssetManager.AssetInputStream ais =
                    (AssetManager.AssetInputStream) assetManager.open("api_start2");
            byte[] bytes = KcaUtils.gzipdecompress(ByteStreams.toByteArray(ais));
            helper.putValue(DB_KEY_STARTDATA, new String(bytes));
            JsonElement data = new JsonParser().parse(new String(bytes));
            JsonObject api_data = new Gson().fromJson(data, JsonObject.class).getAsJsonObject("api_data");
            KcaApiData.getKcGameData(api_data);
            setPreferences(context, PREF_KCA_VERSION, default_version);
            setPreferences(context, PREF_KCA_DATA_VERSION, default_version);
        } catch (Exception e) {
            return 0;
        }
        return 1;
    } else {
        return 1;
    }
}
 

public static JsonObject loadGunfitData(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("gunfit.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        return new JsonParser().parse(new String(bytes)).getAsJsonObject();
    } catch (IOException e) {
        return new JsonObject();
    }
}
 

public static JsonObject loadSpecialEquipmentShipInfo(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("equip_special.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement data = new JsonParser().parse(new String(bytes));
        if (data.isJsonObject()) {
            return data.getAsJsonObject();
        } else {
            return null;
        }
    } catch (IOException e) {
        return null;
    }
}
 

public static int loadSortieExpInfoFromAssets(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("exp_sortie.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement expSortieData = new JsonParser().parse(new String(bytes));
        if (expSortieData.isJsonObject()) {
            helper.putValue(DB_KEY_EXPSORTIE, expSortieData.toString());
            return 1;
        } else {
            return -1;
        }
    } catch (IOException e) {
        return 0;
    }
}
 

public static int loadShipExpInfoFromAssets(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("exp_ship.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement expShipData = new JsonParser().parse(new String(bytes));
        if (expShipData.isJsonObject()) {
            helper.putValue(DB_KEY_EXPSHIP, expShipData.toString());
            return 1;
        } else {
            return -1;
        }
    } catch (IOException e) {
        return 0;
    }
}
 

/**
 * An input stream {@link Binary}.
 *
 * @param inputStream must be {@link FileInputStream}, {@link ByteArrayInputStream}.
 * @param fileName    file name. Had better pass this value, unless the server tube don't care about the file name.
 * @param mimeType    content type.
 */
public InputStreamBinary(InputStream inputStream, String fileName, String mimeType) {
    super(fileName, mimeType);
    if (inputStream == null)
        throw new NullPointerException("The inputStream can't be null.");
    if (!(inputStream instanceof FileInputStream)
            && !(inputStream instanceof ByteArrayInputStream)
            && !(inputStream instanceof AssetManager.AssetInputStream))
        throw new IllegalArgumentException("The inputStream must be FileInputStream, ByteArrayInputStream and " +
                "AssetInputStream.");
    this.inputStream = inputStream;
}
 

public static int setDefaultGameData(Context context, KcaDBHelper helper) {
    boolean valid_data = false;
    String current_version = getStringPreferences(context, PREF_KCA_DATA_VERSION);
    String default_version = context.getString(R.string.default_gamedata_version);

    if (helper.getJsonObjectValue(DB_KEY_STARTDATA) != null && KcaUtils.compareVersion(current_version, default_version)) {
        if (KcaApiData.isGameDataLoaded()) return 1;
        JsonObject start_data = helper.getJsonObjectValue(DB_KEY_STARTDATA);
        if (start_data.has("api_data") && start_data.get("api_data").isJsonObject()) {
            KcaApiData.getKcGameData(start_data.getAsJsonObject("api_data"));
            valid_data = true;
        }
    }

    if (!valid_data) {
        try {
            AssetManager assetManager = context.getAssets();
            AssetManager.AssetInputStream ais =
                    (AssetManager.AssetInputStream) assetManager.open("api_start2");
            byte[] bytes = KcaUtils.gzipdecompress(ByteStreams.toByteArray(ais));
            helper.putValue(DB_KEY_STARTDATA, new String(bytes));
            JsonElement data = new JsonParser().parse(new String(bytes));
            JsonObject api_data = new Gson().fromJson(data, JsonObject.class).getAsJsonObject("api_data");
            KcaApiData.getKcGameData(api_data);
            setPreferences(context, PREF_KCA_VERSION, default_version);
            setPreferences(context, PREF_KCA_DATA_VERSION, default_version);
        } catch (Exception e) {
            return 0;
        }
        return 1;
    } else {
        return 1;
    }
}
 

public static JsonObject loadGunfitData(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("gunfit.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        return new JsonParser().parse(new String(bytes)).getAsJsonObject();
    } catch (IOException e) {
        return new JsonObject();
    }
}
 

public static JsonObject loadSpecialEquipmentShipInfo(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("equip_special.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement data = new JsonParser().parse(new String(bytes));
        if (data.isJsonObject()) {
            return data.getAsJsonObject();
        } else {
            return null;
        }
    } catch (IOException e) {
        return null;
    }
}
 

/**
 * Reads Exif tags from the specified image input stream. Attribute mutation is not supported
 * for input streams. The given input stream will proceed its current position. Developers
 * should close the input stream after use. This constructor is not intended to be used with
 * an input stream that performs any networking operations.
 */
public ExifInterface(InputStream inputStream) throws IOException {
    if (inputStream == null) {
        throw new IllegalArgumentException("inputStream cannot be null");
    }
    mFilename = null;
    if (inputStream instanceof AssetManager.AssetInputStream) {
        mAssetInputStream = (AssetManager.AssetInputStream) inputStream;
    } else {
        mAssetInputStream = null;
    }
    loadAttributes(inputStream);
}
 

public static int loadShipExpInfoFromAssets(AssetManager am) {
    try {
        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("exp_ship.json");
        byte[] bytes = ByteStreams.toByteArray(ais);
        JsonElement expShipData = new JsonParser().parse(new String(bytes));
        if (expShipData.isJsonObject()) {
            helper.putValue(DB_KEY_EXPSHIP, expShipData.toString());
            return 1;
        } else {
            return -1;
        }
    } catch (IOException e) {
        return 0;
    }
}
 

public static String getRSAEncodedString(Context context, String value) throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, IOException, BadPaddingException, IllegalBlockSizeException {
    /*
    Example:
    try {
        JsonObject data = new JsonObject();
        data.addProperty("userid", 20181234);
        data.addProperty("data", "416D341GX141JI0318W");
        String encoded = KcaUtils.getRSAEncodedString(getApplicationContext(), data.toString());
        Log.e("KCA", encoded);
        data.remove("data");
        encoded = KcaUtils.getRSAEncodedString(getApplicationContext(), data.toString());
        Log.e("KCA", data.toString());
        Log.e("KCA", encoded);
    } catch (Exception e) {
        e.printStackTrace();
    }
    */

    List<String> value_list = new ArrayList<>();
    for (int i = 0; i < (int) Math.ceil(value.length() / 96.0); i++) {
        value_list.add(value.substring(i*96, Math.min((i+1)*96, value.length()) ));
    }

    AssetManager am = context.getAssets();
    AssetManager.AssetInputStream ais =
            (AssetManager.AssetInputStream) am.open("kcaqsync_pubkey.txt");
    byte[] bytes = ByteStreams.toByteArray(ais);
    String publicKeyContent = new String(bytes)
            .replaceAll("\\n", "")
            .replace("-----BEGIN PUBLIC KEY-----", "")
            .replace("-----END PUBLIC KEY-----", "").trim();
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.decode(publicKeyContent, Base64.DEFAULT));
    Key encryptionKey = keyFactory.generatePublic(pubSpec);
    Cipher rsa = Cipher.getInstance("RSA/None/PKCS1Padding");
    rsa.init(Cipher.ENCRYPT_MODE, encryptionKey);

    byte[] data_all = {};
    for (String item : value_list) {
        byte[] item_byte = rsa.doFinal(item.getBytes("utf-8"));
        data_all = addAll(data_all, item_byte);
    }

    String result = Base64.encodeToString(rsa.doFinal(value.getBytes("utf-8")), Base64.DEFAULT).replace("\n", "");
    return result;
}
 

private void loadDefaultAsset() {
    AssetManager am = getAssets();
    byte[] bytes;
    String kca_data_version = KcaUtils.getStringPreferences(getApplicationContext(), PREF_KCA_DATA_VERSION);
    String internal_kca_version = getString(R.string.default_gamedata_version);
    int currentKcaResVersion = dbHelper.getTotalResVer();
    try {
        if (kca_data_version == null || compareVersion(internal_kca_version, kca_data_version)) {
            InputStream api_ais = am.open("api_start2");
            bytes = gzipdecompress(ByteStreams.toByteArray(api_ais));
            String asset_start2_data = new String(bytes);
            dbHelper.putValue(DB_KEY_STARTDATA, asset_start2_data);
            KcaUtils.setPreferences(getApplicationContext(), PREF_KCA_VERSION, internal_kca_version);
            KcaUtils.setPreferences(getApplicationContext(), PREF_KCA_DATA_VERSION, internal_kca_version);
        }

        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("list.json");
        bytes = ByteStreams.toByteArray(ais);
        JsonArray data = new JsonParser().parse(new String(bytes)).getAsJsonArray();

        for (JsonElement item: data) {
            JsonObject res_info = item.getAsJsonObject();
            String name = res_info.get("name").getAsString();
            int version = res_info.get("version").getAsInt();
            if (currentKcaResVersion < version) {
                final File root_dir = getDir("data", Context.MODE_PRIVATE);
                final File new_data = new File(root_dir, name);
                if (new_data.exists()) new_data.delete();
                InputStream file_is = am.open(name);
                OutputStream file_out = new FileOutputStream(new_data);

                byte[] buffer = new byte[1024];
                int bytesRead;
                while ((bytesRead = file_is.read(buffer)) != -1) {
                    file_out.write(buffer, 0, bytesRead);
                }
                file_is.close();
                file_out.close();
                dbHelper.putResVer(name, version);
            }
        }
        ais.close();
    } catch (IOException e) {

    }
}
 

private void loadDefaultAsset() {
    AssetManager am = getAssets();
    byte[] bytes;
    String kca_data_version = KcaUtils.getStringPreferences(getApplicationContext(), PREF_KCA_DATA_VERSION);
    String internal_kca_version = getString(R.string.default_gamedata_version);
    int currentKcaResVersion = dbHelper.getTotalResVer();
    try {
        if (kca_data_version == null || compareVersion(internal_kca_version, kca_data_version)) {
            InputStream api_ais = am.open("api_start2");
            bytes = gzipdecompress(ByteStreams.toByteArray(api_ais));
            String asset_start2_data = new String(bytes);
            dbHelper.putValue(DB_KEY_STARTDATA, asset_start2_data);
            KcaUtils.setPreferences(getApplicationContext(), PREF_KCA_VERSION, internal_kca_version);
            KcaUtils.setPreferences(getApplicationContext(), PREF_KCA_DATA_VERSION, internal_kca_version);
        }

        AssetManager.AssetInputStream ais = (AssetManager.AssetInputStream) am.open("list.json");
        bytes = ByteStreams.toByteArray(ais);
        JsonArray data = new JsonParser().parse(new String(bytes)).getAsJsonArray();

        for (JsonElement item: data) {
            JsonObject res_info = item.getAsJsonObject();
            String name = res_info.get("name").getAsString();
            int version = res_info.get("version").getAsInt();
            if (currentKcaResVersion < version) {
                final File root_dir = getDir("data", Context.MODE_PRIVATE);
                final File new_data = new File(root_dir, name);
                if (new_data.exists()) new_data.delete();
                InputStream file_is = am.open(name);
                OutputStream file_out = new FileOutputStream(new_data);

                byte[] buffer = new byte[1024];
                int bytesRead;
                while ((bytesRead = file_is.read(buffer)) != -1) {
                    file_out.write(buffer, 0, bytesRead);
                }
                file_is.close();
                file_out.close();
                dbHelper.putResVer(name, version);
            }
        }
        ais.close();
    } catch (IOException e) {

    }
}
 

public static String getRSAEncodedString(Context context, String value) throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, IOException, BadPaddingException, IllegalBlockSizeException {
    /*
    Example:
    try {
        JsonObject data = new JsonObject();
        data.addProperty("userid", 20181234);
        data.addProperty("data", "416D341GX141JI0318W");
        String encoded = KcaUtils.getRSAEncodedString(getApplicationContext(), data.toString());
        Log.e("KCA", encoded);
        data.remove("data");
        encoded = KcaUtils.getRSAEncodedString(getApplicationContext(), data.toString());
        Log.e("KCA", data.toString());
        Log.e("KCA", encoded);
    } catch (Exception e) {
        e.printStackTrace();
    }
    */

    List<String> value_list = new ArrayList<>();
    for (int i = 0; i < (int) Math.ceil(value.length() / 96.0); i++) {
        value_list.add(value.substring(i*96, Math.min((i+1)*96, value.length()) ));
    }

    AssetManager am = context.getAssets();
    AssetManager.AssetInputStream ais =
            (AssetManager.AssetInputStream) am.open("kcaqsync_pubkey.txt");
    byte[] bytes = ByteStreams.toByteArray(ais);
    String publicKeyContent = new String(bytes)
            .replaceAll("\\n", "")
            .replace("-----BEGIN PUBLIC KEY-----", "")
            .replace("-----END PUBLIC KEY-----", "").trim();
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.decode(publicKeyContent, Base64.DEFAULT));
    Key encryptionKey = keyFactory.generatePublic(pubSpec);
    Cipher rsa = Cipher.getInstance("RSA/None/PKCS1Padding");
    rsa.init(Cipher.ENCRYPT_MODE, encryptionKey);

    byte[] data_all = {};
    for (String item : value_list) {
        byte[] item_byte = rsa.doFinal(item.getBytes("utf-8"));
        data_all = addAll(data_all, item_byte);
    }

    String result = Base64.encodeToString(rsa.doFinal(value.getBytes("utf-8")), Base64.DEFAULT).replace("\n", "");
    return result;
}