1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.osm.history;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.util.ArrayList;
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7 | import java.util.Collections;
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8 | import java.util.Date;
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9 | import java.util.List;
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10 |
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11 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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12 | /**
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13 | * Represents an immutable OSM way in the context of a historical view on
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14 | * OSM data.
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15 | *
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16 | */
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17 | public class HistoryWay extends HistoryOsmPrimitive {
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18 |
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19 | private ArrayList<Long> nodeIds;
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20 |
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21 | public HistoryWay(long id, long version, boolean visible, String user, long uid, long changesetId, Date timestamp) {
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22 | super(id, version, visible, user, uid, changesetId, timestamp);
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23 | nodeIds = new ArrayList<Long>();
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24 | }
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25 |
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26 | public HistoryWay(long id, long version, boolean visible, String user, long uid, long changesetId, Date timestamp, ArrayList<Long> nodeIdList) {
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27 | this(id, version, visible, user, uid, changesetId, timestamp);
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28 | this.nodeIds.addAll(nodeIdList);
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29 | }
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30 |
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31 | /**
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32 | * replies the number of nodes in this way
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33 | * @return the number of nodes
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34 | */
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35 | public int getNumNodes() {
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36 | return nodeIds.size();
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37 | }
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38 |
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39 | /**
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40 | * replies the idx-th node id in the list of node ids of this way
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41 | *
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42 | * @param idx the index
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43 | * @return the idx-th node id
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44 | * @exception IndexOutOfBoundsException thrown, if idx <0 || idx >= {#see {@link #getNumNodes()}
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45 | */
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46 | public long getNodeId(int idx) throws IndexOutOfBoundsException {
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47 | if (idx < 0 || idx >= nodeIds.size())
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48 | throw new IndexOutOfBoundsException(tr("Parameter {0} not in range 0..{1}. Got ''{2}''.", "idx", nodeIds.size(),idx));
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49 | return nodeIds.get(idx);
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50 | }
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51 |
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52 | /**
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53 | * replies an immutable list of the ways node ids
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54 | *
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55 | * @return the ways node ids
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56 | */
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57 | public List<Long> getNodes() {
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58 | return Collections.unmodifiableList(nodeIds);
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59 | }
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60 |
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61 | /**
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62 | * replies the ways type, i.e. {@see OsmPrimitiveType#WAY}
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63 | *
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64 | * @return the ways type
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65 | */
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66 | @Override
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67 | public OsmPrimitiveType getType() {
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68 | return OsmPrimitiveType.WAY;
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69 | }
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70 |
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71 | /**
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72 | * adds a node id to the list nodes of this way
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73 | *
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74 | * @param ref the node id to add
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75 | */
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76 | public void addNode(long ref) {
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77 | nodeIds.add(ref);
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78 | }
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79 |
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80 | /**
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81 | * Replies true if this way is closed.
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82 | *
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83 | * @return true if this way is closed.
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84 | */
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85 | public boolean isClosed() {
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86 | return getNumNodes() >= 3 && nodeIds.get(0) == nodeIds.get(nodeIds.size()-1);
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87 | }
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88 |
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89 | @Override
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90 | public String getDisplayName(HistoryNameFormatter formatter) {
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91 | return formatter.format(this);
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92 | }
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93 | }
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