63 lines
1.8 KiB
Java
63 lines
1.8 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.me.cache.helpers;
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import java.util.Collection;
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import java.util.Iterator;
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import appeng.parts.p2p.PartP2PTunnel;
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public class TunnelIterator<T extends PartP2PTunnel> implements Iterator<T> {
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private final Iterator<T> wrapped;
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private final Class targetType;
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private T Next;
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public TunnelIterator(final Collection<T> tunnelSources, final Class clz) {
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this.wrapped = tunnelSources.iterator();
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this.targetType = clz;
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this.findNext();
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}
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private void findNext() {
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while (this.Next == null && this.wrapped.hasNext()) {
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this.Next = this.wrapped.next();
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if (!this.targetType.isInstance(this.Next)) {
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this.Next = null;
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}
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}
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}
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@Override
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public boolean hasNext() {
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this.findNext();
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return this.Next != null;
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}
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@Override
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public T next() {
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final T tmp = this.Next;
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this.Next = null;
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return tmp;
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}
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@Override
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public void remove() {
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// no.
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}
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}
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