/*
 * 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.lazy.primitive;

import java.util.NoSuchElementException;

import org.eclipse.collections.api.DoubleIterable;
import org.eclipse.collections.api.bag.primitive.MutableDoubleBag;
import org.eclipse.collections.api.block.predicate.primitive.DoublePredicate;
import org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure;
import org.eclipse.collections.api.iterator.DoubleIterator;
import org.eclipse.collections.api.list.primitive.MutableDoubleList;
import org.eclipse.collections.api.set.primitive.MutableDoubleSet;
import org.eclipse.collections.impl.bag.mutable.primitive.DoubleHashBag;
import org.eclipse.collections.impl.block.factory.primitive.DoublePredicates;
import org.eclipse.collections.impl.list.mutable.primitive.DoubleArrayList;
import org.eclipse.collections.impl.set.mutable.primitive.DoubleHashSet;

This file was automatically generated from template file selectPrimitiveIterable.stg.
/** * This file was automatically generated from template file selectPrimitiveIterable.stg. */
public class SelectDoubleIterable extends AbstractLazyDoubleIterable { private final DoubleIterable delegate; private final DoublePredicate predicate; public SelectDoubleIterable(DoubleIterable delegate, DoublePredicate predicate) { this.delegate = delegate; this.predicate = predicate; } @Override public DoubleIterator doubleIterator() { return new SelectDoubleIterator(this.delegate, this.predicate); }
Since:7.0.
/** * @since 7.0. */
@Override public void each(DoubleProcedure procedure) { this.delegate.forEach(new IfDoubleProcedure(procedure)); } @Override public int size() { return this.delegate.count(this.predicate); } @Override public boolean isEmpty() { return !this.doubleIterator().hasNext(); } @Override public boolean notEmpty() { return this.doubleIterator().hasNext(); } @Override public int count(DoublePredicate predicate) { CountDoubleProcedure countDoubleProcedure = new CountDoubleProcedure(predicate); this.forEach(countDoubleProcedure); return countDoubleProcedure.getCount(); } @Override public boolean anySatisfy(DoublePredicate predicate) { return this.delegate.anySatisfy(DoublePredicates.and(this.predicate, predicate)); } @Override public boolean allSatisfy(DoublePredicate predicate) { return this.noneSatisfy(DoublePredicates.not(predicate)); } @Override public boolean noneSatisfy(DoublePredicate predicate) { return !this.anySatisfy(predicate); } @Override public double[] toArray() { final double[] array = new double[this.size()]; this.forEach(new DoubleProcedure() { @SuppressWarnings("FieldMayBeFinal") private int index = 0; @Override public void value(double each) { array[this.index++] = each; } }); return array; } @Override public boolean containsAll(double... source) { for (double value : source) { if (!this.contains(value)) { return false; } } return true; } @Override public boolean containsAll(DoubleIterable source) { for (DoubleIterator iterator = source.doubleIterator(); iterator.hasNext(); ) { if (!this.contains(iterator.next())) { return false; } } return true; } @Override public MutableDoubleList toList() { return DoubleArrayList.newList(this); } @Override public MutableDoubleSet toSet() { return DoubleHashSet.newSet(this); } @Override public MutableDoubleBag toBag() { return DoubleHashBag.newBag(this); } private static final class CountDoubleProcedure implements DoubleProcedure { private static final long serialVersionUID = 1L; private final DoublePredicate predicate; private int counter = 0; private CountDoubleProcedure(DoublePredicate predicate) { this.predicate = predicate; } @Override public void value(double each) { if (this.predicate.accept(each)) { this.counter++; } } public int getCount() { return this.counter; } } private final class IfDoubleProcedure implements DoubleProcedure { private static final long serialVersionUID = 1L; private final DoubleProcedure procedure; private IfDoubleProcedure(DoubleProcedure procedure) { this.procedure = procedure; } @Override public void value(double each) { if (SelectDoubleIterable.this.predicate.accept(each)) { this.procedure.value(each); } } } private static final class SelectDoubleIterator implements DoubleIterator { private final DoubleIterator iterator; private final DoublePredicate predicate; private double next; private boolean verifiedHasNext = false; private SelectDoubleIterator(DoubleIterable iterable, DoublePredicate predicate) { this(iterable.doubleIterator(), predicate); } private SelectDoubleIterator(DoubleIterator iterator, DoublePredicate predicate) { this.iterator = iterator; this.predicate = predicate; } @Override public boolean hasNext() { if (this.verifiedHasNext) { return true; } while (this.iterator.hasNext()) { double temp = this.iterator.next(); if (this.predicate.accept(temp)) { this.next = temp; this.verifiedHasNext = true; return true; } } return false; } @Override public double next() { if (this.verifiedHasNext || this.hasNext()) { this.verifiedHasNext = false; return this.next; } throw new NoSuchElementException(); } } }