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Get field type from its value
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Vankka
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commit
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@ -0,0 +1,203 @@
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/*
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* This file is part of DiscordSRV, licensed under the GPLv3 License
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* Copyright (c) 2016-2024 Austin "Scarsz" Shapiro, Henri "Vankka" Schubin and DiscordSRV contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.discordsrv.common.config.configurate.fielddiscoverer;
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import org.checkerframework.checker.nullness.qual.Nullable;
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import org.spongepowered.configurate.objectmapping.ConfigSerializable;
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import org.spongepowered.configurate.objectmapping.FieldDiscoverer;
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import org.spongepowered.configurate.serialize.SerializationException;
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import org.spongepowered.configurate.util.CheckedFunction;
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import org.spongepowered.configurate.util.Types;
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import java.lang.reflect.*;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.function.Supplier;
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import static io.leangen.geantyref.GenericTypeReflector.*;
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/*
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* https://github.com/SpongePowered/Configurate/blob/c3d2105e0c03a0f6e0ae20ad74dbb4df9a83df36/core/src/main/java/org/spongepowered/configurate/objectmapping/ObjectFieldDiscoverer.java
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* Identical except uses the type of the value instead of the fields type.
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*
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* Configurate
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* Copyright (C) zml and Configurate contributors
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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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public class FieldValueDiscovererProxy implements FieldDiscoverer<Map<Field, Object>> {
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public static final FieldValueDiscovererProxy EMPTY_CONSTRUCTOR_INSTANCE = new FieldValueDiscovererProxy(type -> {
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try {
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final Constructor<?> constructor;
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constructor = erase(type.getType()).getDeclaredConstructor();
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constructor.setAccessible(true);
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return () -> {
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try {
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return constructor.newInstance();
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} catch (final InstantiationException | IllegalAccessException | InvocationTargetException e) {
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throw new RuntimeException(e);
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}
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};
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} catch (final NoSuchMethodException e) {
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return null;
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}
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}, "Objects must have a zero-argument constructor to be able to create new instances", false);
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private final CheckedFunction<AnnotatedType, @Nullable Supplier<Object>, SerializationException> instanceFactory;
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private final String instanceUnavailableErrorMessage;
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private final boolean requiresInstanceCreation;
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FieldValueDiscovererProxy(
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final CheckedFunction<AnnotatedType, @Nullable Supplier<Object>, SerializationException> instanceFactory,
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final @Nullable String instanceUnavailableErrorMessage,
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final boolean requiresInstanceCreation
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) {
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this.instanceFactory = instanceFactory;
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if (instanceUnavailableErrorMessage == null) {
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this.instanceUnavailableErrorMessage = "Unable to create instances for this type!";
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} else {
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this.instanceUnavailableErrorMessage = instanceUnavailableErrorMessage;
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}
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this.requiresInstanceCreation = requiresInstanceCreation;
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}
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@Override
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public <V> @Nullable InstanceFactory<Map<Field, Object>> discover(final AnnotatedType target,
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final FieldCollector<Map<Field, Object>, V> collector) throws SerializationException {
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final Class<?> clazz = erase(target.getType());
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if (clazz.isInterface()) {
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throw new SerializationException(target.getType(), "ObjectMapper can only work with concrete types");
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}
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final @Nullable Supplier<Object> maker = this.instanceFactory.apply(target);
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if (maker == null && this.requiresInstanceCreation) {
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return null;
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}
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Object instanceForCollection = maker != null ? maker.get() : null;
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AnnotatedType collectType = target;
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Class<?> collectClass = clazz;
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while (true) {
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collectFields(collectType, collector, instanceForCollection);
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collectClass = collectClass.getSuperclass();
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if (collectClass.equals(Object.class)) {
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break;
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}
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collectType = getExactSuperType(collectType, collectClass);
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}
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return new MutableInstanceFactory<Map<Field, Object>>() {
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@Override
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public Map<Field, Object> begin() {
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return new HashMap<>();
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}
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@Override
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public void complete(final Object instance, final Map<Field, Object> intermediate) throws SerializationException {
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for (final Map.Entry<Field, Object> entry : intermediate.entrySet()) {
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try {
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// Handle implicit field initialization by detecting any existing information in the object
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if (entry.getValue() instanceof ImplicitProvider) {
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final @Nullable Object implicit = ((ImplicitProvider) entry.getValue()).provider.get();
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if (implicit != null) {
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if (entry.getKey().get(instance) == null) {
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entry.getKey().set(instance, implicit);
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}
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}
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} else {
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entry.getKey().set(instance, entry.getValue());
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}
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} catch (final IllegalAccessException e) {
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throw new SerializationException(target.getType(), e);
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}
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}
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}
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@Override
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public Object complete(final Map<Field, Object> intermediate) throws SerializationException {
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final Object instance = maker == null ? null : maker.get();
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if (instance == null) {
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throw new SerializationException(target.getType(), instanceUnavailableErrorMessage);
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}
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complete(instance, intermediate);
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return instance;
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}
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@Override
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public boolean canCreateInstances() {
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return maker != null;
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}
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};
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}
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private void collectFields(final AnnotatedType clazz, final FieldCollector<Map<Field, Object>, ?> fieldMaker, Object instanceForCollection) {
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for (final Field field : erase(clazz.getType()).getDeclaredFields()) {
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if ((field.getModifiers() & (Modifier.STATIC | Modifier.TRANSIENT)) != 0) {
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continue;
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}
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field.setAccessible(true);
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AnnotatedType fieldType = getFieldType(field, clazz);
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try {
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if (instanceForCollection != null) {
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Object instance = field.get(instanceForCollection);
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Class<?> type = instance != null ? instance.getClass() : null;
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if (type != null && type.isAnnotationPresent(ConfigSerializable.class)) {
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fieldType = annotate(type);
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}
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}
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} catch (IllegalAccessException ignored) {}
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fieldMaker.accept(field.getName(), fieldType, Types.combinedAnnotations(fieldType, field),
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(intermediate, val, implicitProvider) -> {
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if (val != null) {
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intermediate.put(field, val);
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} else {
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intermediate.put(field, new ImplicitProvider(implicitProvider));
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}
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}, field::get);
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}
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}
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static class ImplicitProvider {
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final Supplier<Object> provider;
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ImplicitProvider(final Supplier<Object> provider) {
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this.provider = provider;
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}
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}
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}
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@ -25,6 +25,7 @@ import com.discordsrv.common.DiscordSRV;
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import com.discordsrv.common.config.configurate.annotation.Constants;
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import com.discordsrv.common.config.configurate.annotation.DefaultOnly;
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import com.discordsrv.common.config.configurate.annotation.Order;
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import com.discordsrv.common.config.configurate.fielddiscoverer.FieldValueDiscovererProxy;
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import com.discordsrv.common.config.configurate.fielddiscoverer.OrderedFieldDiscovererProxy;
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import com.discordsrv.common.config.configurate.manager.loader.ConfigLoaderProvider;
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import com.discordsrv.common.config.configurate.serializer.*;
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@ -209,7 +210,7 @@ public abstract class ConfigurateConfigManager<T, LT extends AbstractConfigurati
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return ObjectMapper.factoryBuilder()
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.defaultNamingScheme(NAMING_SCHEME)
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.addDiscoverer(new OrderedFieldDiscovererProxy<>((FieldDiscoverer<Object>) FieldDiscoverer.emptyConstructorObject(), fieldOrder))
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.addDiscoverer(new OrderedFieldDiscovererProxy<>((FieldDiscoverer<Object>) (Object) FieldValueDiscovererProxy.EMPTY_CONSTRUCTOR_INSTANCE, fieldOrder))
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.addDiscoverer(new OrderedFieldDiscovererProxy<>((FieldDiscoverer<Object>) FieldDiscoverer.record(), fieldOrder))
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.addProcessor(Constants.Comment.class, (data, fieldType) -> (value, destination) -> {
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// This needs to go before comment processing.
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@ -84,7 +84,7 @@ public abstract class MainConfig implements Config {
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public PresenceUpdaterConfig presenceUpdater = defaultPresenceUpdater();
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protected PresenceUpdaterConfig defaultPresenceUpdater() {
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return new PresenceUpdaterConfig(); // TODO: fix overriding this not effecting the final config
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return new PresenceUpdaterConfig();
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}
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public TimedUpdaterConfig timedUpdater = new TimedUpdaterConfig();
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@ -34,7 +34,7 @@ import java.util.Locale;
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public class PresenceUpdaterConfig {
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@Comment("The amount of seconds between presence updates\n"
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+ "Minimum value: %1s")
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+ "Minimum value: %1")
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@Constants.Comment("30")
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public int updaterRateInSeconds = 90;
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@ -59,7 +59,8 @@ public class TimedUpdaterConfig {
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@Comment("The format for the channel name(s), placeholders are supported.")
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public String nameFormat = "";
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@Comment("The time between updates in minutes. The minimum time is %1 minutes.")
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@Comment("The time between updates in minutes.\n"
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+ "Minimum value: %1")
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@Constants.Comment(intValue = MINIMUM_MINUTES)
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public int timeMinutes = MINIMUM_MINUTES;
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@ -95,7 +96,8 @@ public class TimedUpdaterConfig {
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+ "If this is blank, the topic will not be updated")
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public String topicFormat = "";
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@Comment("The time between updates in minutes. The minimum time is %1 minutes.")
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@Comment("The time between updates in minutes.\n"
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+ "Minimum value: %1")
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@Constants.Comment(intValue = MINIMUM_MINUTES)
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public int timeMinutes = MINIMUM_MINUTES;
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