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// $Id$
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/**
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* Copyright (C) 2016 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.molecular.io;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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import eu.etaxonomy.taxeditor.molecular.Messages;
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/**
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* Iterator implementation used internally be {@link CDMSequenceMatrixAdapter}.
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*
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* @author Ben Stöver
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* @date 29.04.2016
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*/
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class SequenceIDIterator implements Iterator<String> {
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private boolean containsConsensus;
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private int singleReadPos;
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private int singleReadCount;
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/**
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* Creates a new instance of this class.
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*
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* @param singleReadCount the number of single read IDs to be returned by this iterator before the consensus sequence
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*/
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public SequenceIDIterator(int singleReadCount, boolean containsConsensus) {
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super();
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this.containsConsensus = containsConsensus;
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this.singleReadCount = singleReadCount;
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this.singleReadPos = 0;
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}
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@Override
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public boolean hasNext() {
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return (singleReadPos < singleReadCount) || (containsConsensus && (singleReadPos <= singleReadCount));
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}
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@Override
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public String next() {
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if (singleReadPos < singleReadCount) {
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return CDMSequenceMatrixAdapter.SINGLE_READ_SEQUENCE_ID_PREFIX + (singleReadPos++);
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}
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else if (containsConsensus && (singleReadPos == singleReadCount)) {
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singleReadPos++;
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return CDMSequenceMatrixAdapter.CONSENSUS_SEQUENCE_ID;
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}
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else {
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throw new NoSuchElementException(Messages.SequenceIDIterator_NO_MORE_SEQUENCES);
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}
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}
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@Override
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public void remove() {
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throw new UnsupportedOperationException(Messages.SequenceIDIterator_REMOVE_NOT_SUPPORTED);
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}
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}
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