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/*
* 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;
}
}
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