| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.internal.util; |
| |
| import android.annotation.Nullable; |
| |
| /** |
| * Various numeric -> strings conversion. |
| * |
| * Test: |
| atest /android/pi-dev/frameworks/base/core/tests/coretests/src/com/android/internal/util/ParseUtilsTest.java |
| */ |
| public final class ParseUtils { |
| private ParseUtils() { |
| } |
| |
| /** Parse a value as a base-10 integer. */ |
| public static int parseInt(@Nullable String value, int defValue) { |
| return parseIntWithBase(value, 10, defValue); |
| } |
| |
| /** Parse a value as an integer of a given base. */ |
| public static int parseIntWithBase(@Nullable String value, int base, int defValue) { |
| if (value == null) { |
| return defValue; |
| } |
| try { |
| return Integer.parseInt(value, base); |
| } catch (NumberFormatException e) { |
| return defValue; |
| } |
| } |
| |
| /** Parse a value as a base-10 long. */ |
| public static long parseLong(@Nullable String value, long defValue) { |
| return parseLongWithBase(value, 10, defValue); |
| } |
| |
| /** Parse a value as a long of a given base. */ |
| public static long parseLongWithBase(@Nullable String value, int base, long defValue) { |
| if (value == null) { |
| return defValue; |
| } |
| try { |
| return Long.parseLong(value, base); |
| } catch (NumberFormatException e) { |
| return defValue; |
| } |
| } |
| |
| /** Parse a value as a float. */ |
| public static float parseFloat(@Nullable String value, float defValue) { |
| if (value == null) { |
| return defValue; |
| } |
| try { |
| return Float.parseFloat(value); |
| } catch (NumberFormatException e) { |
| return defValue; |
| } |
| } |
| |
| /** Parse a value as a double. */ |
| public static double parseDouble(@Nullable String value, double defValue) { |
| if (value == null) { |
| return defValue; |
| } |
| try { |
| return Double.parseDouble(value); |
| } catch (NumberFormatException e) { |
| return defValue; |
| } |
| } |
| |
| /** Parse a value as a boolean. */ |
| public static boolean parseBoolean(@Nullable String value, boolean defValue) { |
| if ("true".equals(value)) { |
| return true; |
| } |
| if ("false".equals(value)) { |
| return false; |
| } |
| return parseInt(value, defValue ? 1 : 0) != 0; |
| } |
| } |