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.value.immutable; import static com.google.common.base.Preconditions.checkNotNull; import com.google.common.collect.ImmutableList; import com.google.common.collect.Iterables; import com.google.common.collect.Lists; import org.spongepowered.api.data.key.Key; import org.spongepowered.api.data.value.BaseValue; import org.spongepowered.api.data.value.immutable.ImmutableListValue; import org.spongepowered.api.data.value.mutable.ListValue; import org.spongepowered.common.data.value.mutable.SpongeListValue; import java.util.List; import java.util.ListIterator; import java.util.function.Function; import java.util.function.Predicate; public class ImmutableSpongeListValue<E> extends ImmutableSpongeCollectionValue<E, List<E>, ImmutableListValue<E>, ListValue<E>> implements ImmutableListValue<E> { public ImmutableSpongeListValue(Key<? extends BaseValue<List<E>>> key, ImmutableList<E> actualValue) { super(key, ImmutableList.<E>of(), actualValue); } @Override public ImmutableListValue<E> with(List<E> value) { return new ImmutableSpongeListValue<>(getKey(), ImmutableList.copyOf(checkNotNull(value))); } @Override public ImmutableListValue<E> transform(Function<List<E>, List<E>> function) { return new ImmutableSpongeListValue<>(getKey(), ImmutableList.copyOf(checkNotNull(checkNotNull(function).apply(this.actualValue)))); } @Override public ListValue<E> asMutable() { final List<E> list = Lists.newArrayList(); list.addAll(this.actualValue); return new SpongeListValue<>(getKey(), list); } @Override public ImmutableListValue<E> withElement(E elements) { return new ImmutableSpongeListValue<>(getKey(), ImmutableList.<E>builder().addAll(this.actualValue).add(elements).build()); } @Override public ImmutableListValue<E> withAll(Iterable<E> elements) { return new ImmutableSpongeListValue<>(getKey(), ImmutableList.<E>builder().addAll(this.actualValue).addAll(elements).build()); } @Override public ImmutableListValue<E> without(E element) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); this.actualValue.stream().filter(existingElement -> !existingElement.equals(element)).forEach(builder::add); return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public ImmutableListValue<E> withoutAll(Iterable<E> elements) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); this.actualValue.stream().filter(existingElement -> !Iterables.contains(elements, existingElement)) .forEach(builder::add); return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public ImmutableListValue<E> withoutAll(Predicate<E> predicate) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); this.actualValue.stream().filter(existing -> checkNotNull(predicate).test(existing)).forEach(builder::add); return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public List<E> getAll() { final List<E> list = Lists.newArrayList(); list.addAll(this.actualValue); return list; } @Override public E get(int index) { return this.actualValue.get(index); } @Override public ImmutableListValue<E> with(int index, E value) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); for (final ListIterator<E> iterator = this.actualValue.listIterator(); iterator.hasNext();) { if (iterator.nextIndex() - 1 == index) { builder.add(checkNotNull(value)); iterator.next(); } else { builder.add(iterator.next()); } } return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public ImmutableListValue<E> with(int index, Iterable<E> values) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); for (final ListIterator<E> iterator = this.actualValue.listIterator(); iterator.hasNext();) { if (iterator.nextIndex() - 1 == index) { builder.addAll(values); } builder.add(iterator.next()); } return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public ImmutableListValue<E> without(int index) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); for (final ListIterator<E> iterator = this.actualValue.listIterator(); iterator.hasNext();) { if (iterator.nextIndex() - 1 != index) { builder.add(iterator.next()); } } return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public ImmutableListValue<E> set(int index, E element) { final ImmutableList.Builder<E> builder = ImmutableList.builder(); for (final ListIterator<E> iterator = this.actualValue.listIterator(); iterator.hasNext();) { if (iterator.nextIndex() - 1 == index) { builder.add(checkNotNull(element)); iterator.next(); } else { builder.add(iterator.next()); } } return new ImmutableSpongeListValue<>(getKey(), builder.build()); } @Override public int indexOf(E element) { return this.actualValue.indexOf(element); } }