71 lines
2.7 KiB
Java
71 lines
2.7 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2021 ViaVersion and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.viaversion.viaversion.api.remapper;
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import org.checkerframework.checker.nullness.qual.Nullable;
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import com.viaversion.viaversion.api.PacketWrapper;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.exception.InformativeException;
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public abstract class ValueTransformer<T1, T2> implements ValueWriter<T1> {
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private final Type<T1> inputType;
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private final Type<T2> outputType;
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public ValueTransformer(@Nullable Type<T1> inputType, Type<T2> outputType) {
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this.inputType = inputType;
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this.outputType = outputType;
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}
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public ValueTransformer(Type<T2> outputType) {
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this(null, outputType);
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}
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/**
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* Transform a value from one type to another
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*
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* @param wrapper The current packet
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* @param inputValue The input value
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* @return The value to write to the wrapper
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* @throws Exception Throws exception if it fails to transform a value
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*/
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public abstract T2 transform(PacketWrapper wrapper, T1 inputValue) throws Exception;
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@Override
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public void write(PacketWrapper writer, T1 inputValue) throws Exception {
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try {
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writer.write(outputType, transform(writer, inputValue));
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} catch (InformativeException e) {
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e.addSource(this.getClass());
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throw e;
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}
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}
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public @Nullable Type<T1> getInputType() {
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return inputType;
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}
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public Type<T2> getOutputType() {
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return outputType;
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}
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}
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