Java tutorial
/* * This file is part of Sponge, licensed under the MIT License (MIT). * * Copyright (c) SpongePowered <https://www.spongepowered.org> * Copyright (c) contributors * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.spongepowered.common.data.processor.multi.entity; import com.google.common.collect.Maps; import net.minecraft.command.server.CommandBlockLogic; import net.minecraft.entity.EntityMinecartCommandBlock; import org.spongepowered.api.data.DataContainer; import org.spongepowered.api.data.DataHolder; import org.spongepowered.api.data.DataTransactionResult; import org.spongepowered.api.data.key.Key; import org.spongepowered.api.data.key.Keys; import org.spongepowered.api.data.manipulator.immutable.ImmutableCommandData; import org.spongepowered.api.data.manipulator.mutable.CommandData; import org.spongepowered.api.text.Text; import org.spongepowered.common.data.manipulator.mutable.SpongeCommandData; import org.spongepowered.common.data.processor.common.AbstractEntityDataProcessor; import org.spongepowered.common.text.SpongeTexts; import java.util.Map; import java.util.Optional; public class EntityCommandDataProcessor extends AbstractEntityDataProcessor<EntityMinecartCommandBlock, CommandData, ImmutableCommandData> { public EntityCommandDataProcessor() { super(EntityMinecartCommandBlock.class); } @Override public Optional<CommandData> fill(DataContainer container, CommandData commandData) { if (!container.contains(Keys.LAST_COMMAND_OUTPUT.getQuery(), Keys.SUCCESS_COUNT.getQuery(), Keys.COMMAND.getQuery(), Keys.TRACKS_OUTPUT.getQuery())) { return Optional.empty(); } @SuppressWarnings("unchecked") Optional<Text> lastCommandOutput = (Optional<Text>) container.get(Keys.LAST_COMMAND_OUTPUT.getQuery()) .get(); int successCount = container.getInt(Keys.SUCCESS_COUNT.getQuery()).get(); String command = container.getString(Keys.COMMAND.getQuery()).get(); boolean tracksOutput = container.getBoolean(Keys.TRACKS_OUTPUT.getQuery()).get(); commandData.set(Keys.LAST_COMMAND_OUTPUT, lastCommandOutput); commandData.set(Keys.SUCCESS_COUNT, successCount); commandData.set(Keys.COMMAND, command); commandData.set(Keys.TRACKS_OUTPUT, tracksOutput); return Optional.of(commandData); } @Override public DataTransactionResult remove(DataHolder dataHolder) { return DataTransactionResult.failNoData(); } @Override protected boolean doesDataExist(EntityMinecartCommandBlock entity) { return true; } @SuppressWarnings("unchecked") @Override protected boolean set(EntityMinecartCommandBlock entity, Map<Key<?>, Object> keyValues) { CommandBlockLogic logic = entity.getCommandBlockLogic(); logic.setLastOutput(SpongeTexts .toComponent(((Optional<Text>) keyValues.get(Keys.LAST_COMMAND_OUTPUT)).orElse(Text.of()))); logic.commandStored = (String) keyValues.get(Keys.COMMAND); logic.successCount = (int) keyValues.get(Keys.SUCCESS_COUNT); logic.setTrackOutput((boolean) keyValues.get(Keys.TRACKS_OUTPUT)); entity.onUpdate(); return true; } @Override protected Map<Key<?>, ?> getValues(EntityMinecartCommandBlock entity) { CommandBlockLogic logic = entity.getCommandBlockLogic(); Map<Key<?>, Object> values = Maps.newHashMapWithExpectedSize(4); Optional<Text> lastCommandOutput = logic.getLastOutput() != null ? Optional.of(SpongeTexts.toText(logic.getLastOutput())) : Optional.empty(); values.put(Keys.LAST_COMMAND_OUTPUT, lastCommandOutput); values.put(Keys.COMMAND, logic.commandStored); values.put(Keys.SUCCESS_COUNT, logic.successCount); values.put(Keys.TRACKS_OUTPUT, logic.shouldTrackOutput()); return values; } @Override protected CommandData createManipulator() { return new SpongeCommandData(); } }