89 lines
2.8 KiB
Java
89 lines
2.8 KiB
Java
/*
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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 <http://www.gnu.org/licenses/>.
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*/
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package fr.neatmonster.nocheatplus.components.registry.order;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* This is an auxiliary class that allows more convenient implementations of
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* IRegisterWithOrder, it's not really meant to be registered anywhere. Methods
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* for adding default and mappings are provided for chaining.
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*
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* @author asofold
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*
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*/
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public class RegistrationOrderStore implements IRegisterWithOrder {
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// (No generics this time.)
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private final Map<Class<?>, RegistrationOrder> orderMap = new HashMap<Class<?>, RegistrationOrder>();
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private RegistrationOrder defaultOrder = null;
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public RegistrationOrderStore() {
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}
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/**
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* Set the default order to apply when no mapping is present for a given
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* key.
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*
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* @param order
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* Allows setting to null. The default order applies, if no
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* mapping is present. It does not apply if a mapping to null is
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* present.
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* @return
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*/
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public RegistrationOrderStore defaultOrder(RegistrationOrder order) {
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this.defaultOrder = order;
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return this;
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}
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/**
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* Set a mapping from type to register for and order.
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*
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* @param registerForType
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* @param order
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* Can be set to null, to prevent the return of the defaultOrder.
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* @return
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*/
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public RegistrationOrderStore order(Class<?> registerForType, RegistrationOrder order) {
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this.orderMap.put(registerForType, order);
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return this;
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}
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/**
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* Convenience: set up defaultOrder with the constructor.
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*
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* @param defaultOrder
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*/
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public RegistrationOrderStore(RegistrationOrder order) {
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this.defaultOrder = order;
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}
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@Override
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public RegistrationOrder getRegistrationOrder(final Class<?> registerForType) {
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// Prefer set null entries over the default type.
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return orderMap.containsKey(registerForType) ? orderMap.get(registerForType) : defaultOrder;
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}
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/**
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* Remove all mappings and set the defaultOrder to null.
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*/
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public void clear() {
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orderMap.clear();
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defaultOrder = null;
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}
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}
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