/*
 * Copyright (c) 2021 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.impl.stack.immutable.primitive;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Serializable;

import org.eclipse.collections.api.IntIterable;
import org.eclipse.collections.api.block.function.primitive.IntToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.IntPredicate;
import org.eclipse.collections.api.list.primitive.MutableIntList;
import org.eclipse.collections.api.stack.ImmutableStack;
import org.eclipse.collections.api.stack.primitive.IntStack;
import org.eclipse.collections.api.stack.primitive.ImmutableIntStack;
import org.eclipse.collections.impl.block.procedure.checked.primitive.CheckedIntProcedure;
import org.eclipse.collections.impl.factory.Stacks;
import org.eclipse.collections.impl.factory.primitive.IntStacks;
import org.eclipse.collections.impl.list.mutable.primitive.IntArrayList;
import org.eclipse.collections.impl.stack.mutable.primitive.IntArrayStack;
import org.eclipse.collections.impl.stack.primitive.AbstractIntStack;

ImmutableIntArrayStack is the non-modifiable equivalent of IntArrayStack. This file was automatically generated from template file immutablePrimitiveArrayStack.stg.
Since:4.0.
/** * ImmutableIntArrayStack is the non-modifiable equivalent of {@link IntArrayStack}. * This file was automatically generated from template file immutablePrimitiveArrayStack.stg. * * @since 4.0. */
final class ImmutableIntArrayStack extends AbstractIntStack implements ImmutableIntStack, Serializable { private static final long serialVersionUID = 1L; private final IntArrayList delegate; private ImmutableIntArrayStack(int[] newElements) { this.checkOptimizedSize(newElements.length); this.delegate = new IntArrayList(newElements); } private ImmutableIntArrayStack(IntArrayList newElements) { this.checkOptimizedSize(newElements.size()); this.delegate = newElements; } private void checkOptimizedSize(int length) { if (length <= 1) { throw new IllegalArgumentException("Use IntStacks.immutable.with() to instantiate an optimized collection"); } } public static ImmutableIntArrayStack newStack(IntIterable iterable) { return new ImmutableIntArrayStack(iterable.toArray()); } public static ImmutableIntArrayStack newStackWith(int... elements) { int[] newArray = new int[elements.length]; System.arraycopy(elements, 0, newArray, 0, elements.length); return new ImmutableIntArrayStack(newArray); } public static ImmutableIntArrayStack newStackFromTopToBottom(int... items) { return new ImmutableIntArrayStack(IntArrayList.newListWith(items).reverseThis()); } public static ImmutableIntArrayStack newStackFromTopToBottom(IntIterable items) { return new ImmutableIntArrayStack(IntArrayList.newList(items).reverseThis()); } @Override protected IntArrayList getDelegate() { return this.delegate; } @Override public ImmutableIntStack push(int item) { IntArrayList newDelegate = IntArrayList.newList(this.delegate); newDelegate.add(item); return new ImmutableIntArrayStack(newDelegate); } @Override public ImmutableIntStack pop() { IntArrayList newDelegate = IntArrayList.newList(this.delegate); newDelegate.removeAtIndex(this.delegate.size() - 1); return IntStacks.immutable.with(newDelegate.toArray()); } @Override public ImmutableIntStack pop(int count) { this.checkNegativeCount(count); if (count == 0) { return this; } this.checkSizeLessThanCount(count); IntArrayList newDelegate = IntArrayList.newList(this.delegate); while (count > 0) { newDelegate.removeAtIndex(newDelegate.size() - 1); count--; } return IntStacks.immutable.with(newDelegate.toArray()); } private void checkNegativeCount(int count) { if (count < 0) { throw new IllegalArgumentException("Count must be positive but was " + count); } } @Override public ImmutableIntStack select(IntPredicate predicate) { return IntStacks.immutable.withAllReversed(this.delegate.asReversed().select(predicate)); } @Override public ImmutableIntStack reject(IntPredicate predicate) { return IntStacks.immutable.withAllReversed(this.delegate.asReversed().reject(predicate)); } @Override public <V> ImmutableStack<V> collect(IntToObjectFunction<? extends V> function) { return Stacks.immutable.withAllReversed(this.delegate.asReversed().collect(function)); } @Override public ImmutableIntStack toImmutable() { return this; } @Override public boolean isEmpty() { return false; } @Override public boolean notEmpty() { return true; } @Override public MutableIntList toSortedList() { return IntArrayList.newList(this).sortThis(); } private Object writeReplace() { return new ImmutableIntStackSerializationProxy(this); } private static class ImmutableIntStackSerializationProxy implements Externalizable { private static final long serialVersionUID = 1L; private IntStack stack; @SuppressWarnings("UnusedDeclaration") public ImmutableIntStackSerializationProxy() { // Empty constructor for Externalizable class } protected ImmutableIntStackSerializationProxy(IntStack stack) { this.stack = stack; } @Override public void writeExternal(final ObjectOutput out) throws IOException { out.writeInt(this.stack.size()); try { this.stack.forEach(new CheckedIntProcedure() { @Override public void safeValue(int item) throws IOException { out.writeInt(item); } }); } catch (RuntimeException e) { if (e.getCause() instanceof IOException) { throw (IOException) e.getCause(); } throw e; } } @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { int size = in.readInt(); IntArrayList deserializedDelegate = new IntArrayList(size); for (int i = 0; i < size; i++) { deserializedDelegate.add(in.readInt()); } this.stack = ImmutableIntArrayStack.newStackFromTopToBottom(deserializedDelegate); } protected Object readResolve() { return this.stack; } } }