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1 package jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger;
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2
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3 import com.google.common.collect.Iterables;
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4 import jp.ac.u_ryukyu.ie.cr.jungle.store.NodePath;
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5 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.DefaultTreeOperation;
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6 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.NodeOperation;
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7 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.TreeOperation;
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8 import jp.ac.u_ryukyu.ie.cr.jungle.data.list.List;
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9
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10 import java.util.Iterator;
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11
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12 public class DefaultTreeOperationLog implements TreeOperationLog
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13 {
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14 private final Iterable<TreeOperation> list;
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15 private final int size;
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16
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17 public DefaultTreeOperationLog()
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18 {
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19 list = new List<>();
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20 size = 0;
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21 }
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22
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23 public DefaultTreeOperationLog(Iterable<TreeOperation> _list,int _size)
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24 {
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25 list = _list;
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26 size = _size;
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27 }
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28
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29 @Override
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30 public Iterator<TreeOperation> iterator()
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31 {
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32 return list.iterator();
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33 }
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34
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35 @Override
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36 public TreeOperationLog add(NodePath _p, NodeOperation _op)
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37 {
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38 TreeOperation op = new DefaultTreeOperation(_p,_op);
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39 List<TreeOperation> newList = new List<>(op);
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40 Iterable<TreeOperation> concat = Iterables.concat(list,newList);
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41
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42 return new DefaultTreeOperationLog(concat,size + 1);
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43 }
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44
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45 @Override
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46 public TreeOperationLog append(TreeOperationLog _log)
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47 {
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48 int argumentLogSize = _log.length();
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49 Iterable<TreeOperation> concat = Iterables.concat(list,_log);
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50
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51 return new DefaultTreeOperationLog(concat,argumentLogSize + size);
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52 }
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53
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54 @Override
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55 public int length()
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56 {
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57 return size;
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58 }
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59
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60 }
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