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