ArrayProxyMSeq.java
/*
* Java Genetic Algorithm Library (@__identifier__@).
* Copyright (c) @__year__@ Franz Wilhelmstötter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author:
* Franz Wilhelmstötter (franz.wilhelmstoetter@gmx.at)
*/
package org.jenetics.internal.util;
import static java.lang.Math.min;
import static java.lang.String.format;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.jenetics.util.Factory;
import org.jenetics.util.Function;
import org.jenetics.util.ISeq;
import org.jenetics.util.MSeq;
/**
* @author <a href="mailto:franz.wilhelmstoetter@gmx.at">Franz Wilhelmstötter</a>
* @since 1.4
* @version 1.5 — <em>$Date: 2014-02-15 $</em>
*/
public class ArrayProxyMSeq<T> extends ArrayProxySeq<T> implements MSeq<T> {
public ArrayProxyMSeq(final ArrayProxy<T> proxy) {
super(proxy);
}
@Override
public MSeq<T> copy() {
return new ArrayProxyMSeq<>(_proxy.copy());
}
@Override
public Iterator<T> iterator() {
return new ArrayProxyMIterator<>(_proxy);
}
@Override
public ListIterator<T> listIterator() {
return new ArrayProxyMIterator<>(_proxy);
}
@Override
public void set(final int index, final T value) {
_proxy.cloneIfSealed();
_proxy.set(index, value);
}
@Override
public MSeq<T> setAll(final T value) {
_proxy.cloneIfSealed();
for (int i = _proxy._start; i < _proxy._end; ++i) {
_proxy.__set(i, value);
}
return this;
}
@Override
public MSeq<T> setAll(final Iterator<? extends T> it) {
_proxy.cloneIfSealed();
for (int i = _proxy._start; i < _proxy._end && it.hasNext(); ++i) {
_proxy.__set(i, it.next());
}
return this;
}
@Override
public MSeq<T> setAll(final Iterable<? extends T> values) {
return setAll(values.iterator());
}
@Override
public MSeq<T> setAll(final T[] values) {
_proxy.cloneIfSealed();
for (int i = 0, n = min(_proxy._length, values.length); i < n; ++i) {
_proxy.uncheckedSet(i, values[i]);
}
return this;
}
@Override
public MSeq<T> fill(Factory<? extends T> factory) {
_proxy.cloneIfSealed();
for (int i = _proxy._start; i < _proxy._end; ++i) {
_proxy.__set(i, factory.newInstance());
}
return this;
}
@Override
public void swap(final int i, final int j) {
final T temp = _proxy.get(i);
_proxy.uncheckedSet(i, _proxy.get(j));
_proxy.uncheckedSet(j, temp);
}
@Override
public void swap(int start, int end, MSeq<T> other, int otherStart) {
checkIndex(start, end, otherStart, other.length());
if (start < end) {
if (other instanceof ArrayProxyMSeq<?>) {
swap(start, end, (ArrayProxyMSeq<T>)other, otherStart);
} else {
_proxy.cloneIfSealed();
for (int i = (end - start); --i >= 0;) {
final T temp = _proxy.uncheckedGet(i + start);
_proxy.uncheckedSet(i + start, other.get(otherStart + i));
other.set(otherStart + i, temp);
}
}
}
}
private void swap(int start, int end, ArrayProxyMSeq<T> other, int otherStart) {
_proxy.swap(start, end, other._proxy, otherStart);
}
private void checkIndex(
final int start, final int end,
final int otherStart, final int otherLength
) {
_proxy.checkIndex(start, end);
if (otherStart < 0 || (otherStart + (end - start)) > otherLength) {
throw new ArrayIndexOutOfBoundsException(format(
"Invalid index range: [%d, %d)",
otherStart, (otherStart + (end - start))
));
}
}
@Override
public MSeq<T> subSeq(final int start, final int end) {
return new ArrayProxyMSeq<>(_proxy.slice(start, end));
}
@Override
public MSeq<T> subSeq(final int start) {
return new ArrayProxyMSeq<>(_proxy.slice(start));
}
@Override
public <B> MSeq<B> map(Function<? super T, ? extends B> mapper) {
final ArrayProxyMSeq<B> array = new ArrayProxyMSeq<>(
new ArrayProxyImpl<B>(length())
);
for (int i = 0; i < _proxy._length; ++i) {
array._proxy.uncheckedSet(i, mapper.apply(_proxy.uncheckedGet(i)));
}
return array;
}
@Override
public ISeq<T> toISeq() {
return new ArrayProxyISeq<>(_proxy.seal());
}
@Override
public List<T> asList() {
return new ArrayProxyMList<>(_proxy);
}
}