--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.options/src/org/graalvm/options/OptionType.java Fri Feb 02 10:37:48 2018 -0500
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,222 +0,0 @@
-/*
- * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package org.graalvm.options;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Objects;
-import java.util.function.Consumer;
-import java.util.function.Function;
-
-/**
- * Represents a type of an option that allows to convert string values to Java values.
- *
- * @since 1.0
- */
-public final class OptionType<T> {
-
- private final String name;
- private final Function<String, T> stringConverter;
- private final Consumer<T> validator;
- private final T defaultValue;
-
- /**
- * Constructs a new option type with name, defaultValue, and function that allows to convert a
- * string to the option type.
- *
- * @param name the name of the type.
- * @param defaultValue the default value to use if no value is given.
- * @param stringConverter a function that converts a string value to the option value. Can throw
- * {@link IllegalArgumentException} to indicate an invalid string.
- * @param validator used for validating the option value. Throws
- * {@link IllegalArgumentException} if the value is invalid.
- *
- * @since 1.0
- */
- public OptionType(String name, T defaultValue, Function<String, T> stringConverter, Consumer<T> validator) {
- Objects.requireNonNull(name);
- Objects.requireNonNull(stringConverter);
- Objects.requireNonNull(validator);
- this.name = name;
- this.stringConverter = stringConverter;
- this.defaultValue = defaultValue;
- this.validator = validator;
- }
-
- /**
- * Constructs a new option type with name, defaultValue, and function that allows to convert a
- * string to the option type.
- *
- * @param name the name of the type.
- * @param defaultValue the default value to use if no value is given.
- * @param stringConverter a function that converts a string value to the option value. Can throw
- * {@link IllegalArgumentException} to indicate an invalid string.
- *
- * @since 1.0
- */
- public OptionType(String name, T defaultValue, Function<String, T> stringConverter) {
- this(name, defaultValue, stringConverter, new Consumer<T>() {
- public void accept(T t) {
- }
- });
- }
-
- /**
- * Returns the default value of this type. Used if no value is available.
- *
- * @since 1.0
- */
- public T getDefaultValue() {
- return defaultValue;
- }
-
- /**
- * Returns the name of this type.
- *
- * @since 1.0
- */
- public String getName() {
- return name;
- }
-
- /**
- * Converts a string value, validates it, and converts it to an object of this type.
- *
- * @throws IllegalArgumentException if the value is invalid or cannot be converted.
- * @since 1.0
- */
- public T convert(String value) {
- T v = stringConverter.apply(value);
- validate(v);
- return v;
- }
-
- /**
- * Validates an option value and throws an {@link IllegalArgumentException} if the value is
- * invalid.
- *
- * @throws IllegalArgumentException if the value is invalid or cannot be converted.
- * @since 1.0
- */
- public void validate(T value) {
- validator.accept(value);
- }
-
- /**
- * @since 1.0
- */
- @Override
- public String toString() {
- return "OptionType[name=" + name + ", defaultValue=" + defaultValue + "]";
- }
-
- private static final Map<Class<?>, OptionType<?>> DEFAULTTYPES = new HashMap<>();
- static {
- DEFAULTTYPES.put(Boolean.class, new OptionType<>("Boolean", false, new Function<String, Boolean>() {
- public Boolean apply(String t) {
- if ("true".equals(t)) {
- return Boolean.TRUE;
- } else if ("false".equals(t)) {
- return Boolean.FALSE;
- } else {
- throw new IllegalArgumentException(String.format("Invalid boolean option value '%s'. The value of the option must be '%s' or '%s'.", t, "true", "false"));
- }
- }
- }));
- DEFAULTTYPES.put(Byte.class, new OptionType<>("Byte", (byte) 0, new Function<String, Byte>() {
- public Byte apply(String t) {
- try {
- return Byte.parseByte(t);
- } catch (NumberFormatException e) {
- throw new IllegalArgumentException(e.getMessage(), e);
- }
- }
- }));
- DEFAULTTYPES.put(Integer.class, new OptionType<>("Integer", 0, new Function<String, Integer>() {
- public Integer apply(String t) {
- try {
- return Integer.parseInt(t);
- } catch (NumberFormatException e) {
- throw new IllegalArgumentException(e.getMessage(), e);
- }
- }
- }));
- DEFAULTTYPES.put(Long.class, new OptionType<>("Long", 0L, new Function<String, Long>() {
- public Long apply(String t) {
- try {
- return Long.parseLong(t);
- } catch (NumberFormatException e) {
- throw new IllegalArgumentException(e.getMessage(), e);
- }
- }
- }));
- DEFAULTTYPES.put(Float.class, new OptionType<>("Float", 0.0f, new Function<String, Float>() {
- public Float apply(String t) {
- try {
- return Float.parseFloat(t);
- } catch (NumberFormatException e) {
- throw new IllegalArgumentException(e.getMessage(), e);
- }
- }
- }));
- DEFAULTTYPES.put(Double.class, new OptionType<>("Double", 0.0d, new Function<String, Double>() {
- public Double apply(String t) {
- try {
- return Double.parseDouble(t);
- } catch (NumberFormatException e) {
- throw new IllegalArgumentException(e.getMessage(), e);
- }
- }
- }));
- DEFAULTTYPES.put(String.class, new OptionType<>("String", "0", new Function<String, String>() {
- public String apply(String t) {
- return t;
- }
- }));
- }
-
- /**
- * Returns the default option type for a given value. Returns <code>null</code> if no default
- * option type is available for the Java type of this value.
- *
- * @since 1.0
- */
- @SuppressWarnings("unchecked")
- public static <T> OptionType<T> defaultType(T value) {
- return defaultType((Class<T>) value.getClass());
- }
-
- /**
- * Returns the default option type for a class. Returns <code>null</code> if no default option
- * type is available for this Java type.
- *
- * @since 1.0
- */
- @SuppressWarnings("unchecked")
- public static <T> OptionType<T> defaultType(Class<T> clazz) {
- return (OptionType<T>) DEFAULTTYPES.get(clazz);
- }
-
-}