1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io;
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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.io.InputStream;
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7 | import java.io.InputStreamReader;
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8 | import java.text.MessageFormat;
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9 | import java.util.ArrayList;
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10 | import java.util.Collection;
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11 | import java.util.List;
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12 | import java.util.regex.Matcher;
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13 | import java.util.regex.Pattern;
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14 |
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15 | import javax.xml.stream.Location;
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16 | import javax.xml.stream.XMLInputFactory;
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17 | import javax.xml.stream.XMLStreamConstants;
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18 | import javax.xml.stream.XMLStreamException;
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19 | import javax.xml.stream.XMLStreamReader;
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20 |
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21 | import org.openstreetmap.josm.Main;
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22 | import org.openstreetmap.josm.data.Bounds;
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23 | import org.openstreetmap.josm.data.DataSource;
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24 | import org.openstreetmap.josm.data.coor.LatLon;
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25 | import org.openstreetmap.josm.data.osm.Changeset;
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26 | import org.openstreetmap.josm.data.osm.DataSet;
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27 | import org.openstreetmap.josm.data.osm.Node;
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28 | import org.openstreetmap.josm.data.osm.NodeData;
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29 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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30 | import org.openstreetmap.josm.data.osm.PrimitiveData;
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31 | import org.openstreetmap.josm.data.osm.Relation;
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32 | import org.openstreetmap.josm.data.osm.RelationData;
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33 | import org.openstreetmap.josm.data.osm.RelationMemberData;
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34 | import org.openstreetmap.josm.data.osm.Tagged;
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35 | import org.openstreetmap.josm.data.osm.User;
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36 | import org.openstreetmap.josm.data.osm.Way;
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37 | import org.openstreetmap.josm.data.osm.WayData;
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38 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
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39 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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40 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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41 | import org.openstreetmap.josm.tools.date.DateUtils;
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42 |
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43 | /**
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44 | * Parser for the Osm Api. Read from an input stream and construct a dataset out of it.
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45 | *
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46 | * For each xml element, there is a dedicated method.
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47 | * The XMLStreamReader cursor points to the start of the element, when the method is
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48 | * entered, and it must point to the end of the same element, when it is exited.
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49 | */
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50 | public class OsmReader extends AbstractReader {
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51 |
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52 | protected XMLStreamReader parser;
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53 |
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54 | protected boolean cancel;
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55 |
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56 | /** Used by plugins to register themselves as data postprocessors. */
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57 | private static volatile List<OsmServerReadPostprocessor> postprocessors;
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58 |
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59 | /** Register a new postprocessor.
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60 | * @param pp postprocessor
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61 | * @see #deregisterPostprocessor
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62 | */
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63 | public static void registerPostprocessor(OsmServerReadPostprocessor pp) {
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64 | if (postprocessors == null) {
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65 | postprocessors = new ArrayList<>();
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66 | }
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67 | postprocessors.add(pp);
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68 | }
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69 |
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70 | /**
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71 | * Deregister a postprocessor previously registered with {@link #registerPostprocessor}.
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72 | * @param pp postprocessor
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73 | * @see #registerPostprocessor
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74 | */
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75 | public static void deregisterPostprocessor(OsmServerReadPostprocessor pp) {
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76 | if (postprocessors != null) {
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77 | postprocessors.remove(pp);
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78 | }
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79 | }
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80 |
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81 | /**
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82 | * constructor (for private and subclasses use only)
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83 | *
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84 | * @see #parseDataSet(InputStream, ProgressMonitor)
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85 | */
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86 | protected OsmReader() {
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87 | // Restricts visibility
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88 | }
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89 |
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90 | protected void setParser(XMLStreamReader parser) {
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91 | this.parser = parser;
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92 | }
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93 |
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94 | protected void throwException(String msg, Throwable th) throws XMLStreamException {
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95 | throw new OsmParsingException(msg, parser.getLocation(), th);
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96 | }
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97 |
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98 | protected void throwException(String msg) throws XMLStreamException {
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99 | throw new OsmParsingException(msg, parser.getLocation());
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100 | }
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101 |
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102 | protected void parse() throws XMLStreamException {
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103 | int event = parser.getEventType();
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104 | while (true) {
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105 | if (event == XMLStreamConstants.START_ELEMENT) {
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106 | parseRoot();
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107 | } else if (event == XMLStreamConstants.END_ELEMENT)
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108 | return;
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109 | if (parser.hasNext()) {
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110 | event = parser.next();
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111 | } else {
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112 | break;
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113 | }
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114 | }
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115 | parser.close();
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116 | }
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117 |
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118 | protected void parseRoot() throws XMLStreamException {
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119 | if ("osm".equals(parser.getLocalName())) {
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120 | parseOsm();
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121 | } else {
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122 | parseUnknown();
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123 | }
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124 | }
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125 |
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126 | private void parseOsm() throws XMLStreamException {
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127 | String v = parser.getAttributeValue(null, "version");
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128 | if (v == null) {
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129 | throwException(tr("Missing mandatory attribute ''{0}''.", "version"));
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130 | }
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131 | if (!"0.6".equals(v)) {
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132 | throwException(tr("Unsupported version: {0}", v));
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133 | }
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134 | ds.setVersion(v);
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135 | String upload = parser.getAttributeValue(null, "upload");
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136 | if (upload != null) {
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137 | ds.setUploadDiscouraged(!Boolean.parseBoolean(upload));
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138 | }
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139 | String generator = parser.getAttributeValue(null, "generator");
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140 | Long uploadChangesetId = null;
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141 | if (parser.getAttributeValue(null, "upload-changeset") != null) {
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142 | uploadChangesetId = getLong("upload-changeset");
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143 | }
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144 | while (true) {
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145 | int event = parser.next();
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146 |
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147 | if (cancel) {
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148 | cancel = false;
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149 | throw new OsmParsingCanceledException(tr("Reading was canceled"), parser.getLocation());
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150 | }
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151 |
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152 | if (event == XMLStreamConstants.START_ELEMENT) {
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153 | switch (parser.getLocalName()) {
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154 | case "bounds":
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155 | parseBounds(generator);
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156 | break;
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157 | case "node":
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158 | parseNode();
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159 | break;
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160 | case "way":
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161 | parseWay();
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162 | break;
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163 | case "relation":
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164 | parseRelation();
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165 | break;
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166 | case "changeset":
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167 | parseChangeset(uploadChangesetId);
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168 | break;
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169 | default:
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170 | parseUnknown();
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171 | }
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172 | } else if (event == XMLStreamConstants.END_ELEMENT)
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173 | return;
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174 | }
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175 | }
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176 |
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177 | private void parseBounds(String generator) throws XMLStreamException {
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178 | String minlon = parser.getAttributeValue(null, "minlon");
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179 | String minlat = parser.getAttributeValue(null, "minlat");
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180 | String maxlon = parser.getAttributeValue(null, "maxlon");
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181 | String maxlat = parser.getAttributeValue(null, "maxlat");
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182 | String origin = parser.getAttributeValue(null, "origin");
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183 | if (minlon != null && maxlon != null && minlat != null && maxlat != null) {
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184 | if (origin == null) {
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185 | origin = generator;
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186 | }
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187 | Bounds bounds = new Bounds(
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188 | Double.parseDouble(minlat), Double.parseDouble(minlon),
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189 | Double.parseDouble(maxlat), Double.parseDouble(maxlon));
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190 | if (bounds.isOutOfTheWorld()) {
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191 | Bounds copy = new Bounds(bounds);
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192 | bounds.normalize();
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193 | Main.info("Bbox " + copy + " is out of the world, normalized to " + bounds);
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194 | }
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195 | DataSource src = new DataSource(bounds, origin);
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196 | ds.dataSources.add(src);
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197 | } else {
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198 | throwException(tr("Missing mandatory attributes on element ''bounds''. " +
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199 | "Got minlon=''{0}'',minlat=''{1}'',maxlon=''{3}'',maxlat=''{4}'', origin=''{5}''.",
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200 | minlon, minlat, maxlon, maxlat, origin
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201 | ));
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202 | }
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203 | jumpToEnd();
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204 | }
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205 |
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206 | protected Node parseNode() throws XMLStreamException {
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207 | NodeData nd = new NodeData();
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208 | String lat = parser.getAttributeValue(null, "lat");
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209 | String lon = parser.getAttributeValue(null, "lon");
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210 | if (lat != null && lon != null) {
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211 | nd.setCoor(new LatLon(Double.parseDouble(lat), Double.parseDouble(lon)));
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212 | }
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213 | readCommon(nd);
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214 | Node n = new Node(nd.getId(), nd.getVersion());
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215 | n.setVisible(nd.isVisible());
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216 | n.load(nd);
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217 | externalIdMap.put(nd.getPrimitiveId(), n);
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218 | while (true) {
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219 | int event = parser.next();
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220 | if (event == XMLStreamConstants.START_ELEMENT) {
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221 | if ("tag".equals(parser.getLocalName())) {
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222 | parseTag(n);
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223 | } else {
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224 | parseUnknown();
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225 | }
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226 | } else if (event == XMLStreamConstants.END_ELEMENT)
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227 | return n;
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228 | }
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229 | }
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230 |
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231 | protected Way parseWay() throws XMLStreamException {
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232 | WayData wd = new WayData();
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233 | readCommon(wd);
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234 | Way w = new Way(wd.getId(), wd.getVersion());
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235 | w.setVisible(wd.isVisible());
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236 | w.load(wd);
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237 | externalIdMap.put(wd.getPrimitiveId(), w);
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238 |
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239 | Collection<Long> nodeIds = new ArrayList<>();
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240 | while (true) {
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241 | int event = parser.next();
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242 | if (event == XMLStreamConstants.START_ELEMENT) {
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243 | switch (parser.getLocalName()) {
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244 | case "nd":
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245 | nodeIds.add(parseWayNode(w));
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246 | break;
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247 | case "tag":
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248 | parseTag(w);
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249 | break;
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250 | default:
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251 | parseUnknown();
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252 | }
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253 | } else if (event == XMLStreamConstants.END_ELEMENT) {
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254 | break;
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255 | }
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256 | }
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257 | if (w.isDeleted() && !nodeIds.isEmpty()) {
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258 | Main.info(tr("Deleted way {0} contains nodes", w.getUniqueId()));
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259 | nodeIds = new ArrayList<>();
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260 | }
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261 | ways.put(wd.getUniqueId(), nodeIds);
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262 | return w;
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263 | }
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264 |
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265 | private long parseWayNode(Way w) throws XMLStreamException {
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266 | if (parser.getAttributeValue(null, "ref") == null) {
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267 | throwException(
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268 | tr("Missing mandatory attribute ''{0}'' on <nd> of way {1}.", "ref", w.getUniqueId())
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269 | );
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270 | }
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271 | long id = getLong("ref");
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272 | if (id == 0) {
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273 | throwException(
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274 | tr("Illegal value of attribute ''ref'' of element <nd>. Got {0}.", id)
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275 | );
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276 | }
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277 | jumpToEnd();
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278 | return id;
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279 | }
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280 |
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281 | protected Relation parseRelation() throws XMLStreamException {
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282 | RelationData rd = new RelationData();
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283 | readCommon(rd);
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284 | Relation r = new Relation(rd.getId(), rd.getVersion());
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285 | r.setVisible(rd.isVisible());
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286 | r.load(rd);
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287 | externalIdMap.put(rd.getPrimitiveId(), r);
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288 |
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289 | Collection<RelationMemberData> members = new ArrayList<>();
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290 | while (true) {
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291 | int event = parser.next();
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292 | if (event == XMLStreamConstants.START_ELEMENT) {
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293 | switch (parser.getLocalName()) {
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294 | case "member":
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295 | members.add(parseRelationMember(r));
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296 | break;
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297 | case "tag":
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298 | parseTag(r);
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299 | break;
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300 | default:
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301 | parseUnknown();
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302 | }
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303 | } else if (event == XMLStreamConstants.END_ELEMENT) {
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304 | break;
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305 | }
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306 | }
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307 | if (r.isDeleted() && !members.isEmpty()) {
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308 | Main.info(tr("Deleted relation {0} contains members", r.getUniqueId()));
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309 | members = new ArrayList<>();
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310 | }
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311 | relations.put(rd.getUniqueId(), members);
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312 | return r;
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313 | }
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314 |
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315 | private RelationMemberData parseRelationMember(Relation r) throws XMLStreamException {
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316 | String role = null;
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317 | OsmPrimitiveType type = null;
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318 | long id = 0;
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319 | String value = parser.getAttributeValue(null, "ref");
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320 | if (value == null) {
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321 | throwException(tr("Missing attribute ''ref'' on member in relation {0}.", r.getUniqueId()));
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322 | }
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323 | try {
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324 | id = Long.parseLong(value);
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325 | } catch (NumberFormatException e) {
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326 | throwException(tr("Illegal value for attribute ''ref'' on member in relation {0}. Got {1}", Long.toString(r.getUniqueId()),
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327 | value), e);
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328 | }
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329 | value = parser.getAttributeValue(null, "type");
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330 | if (value == null) {
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331 | throwException(tr("Missing attribute ''type'' on member {0} in relation {1}.", Long.toString(id), Long.toString(r.getUniqueId())));
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332 | }
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333 | try {
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334 | type = OsmPrimitiveType.fromApiTypeName(value);
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335 | } catch (IllegalArgumentException e) {
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336 | throwException(tr("Illegal value for attribute ''type'' on member {0} in relation {1}. Got {2}.",
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337 | Long.toString(id), Long.toString(r.getUniqueId()), value), e);
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338 | }
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339 | value = parser.getAttributeValue(null, "role");
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340 | role = value;
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341 |
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342 | if (id == 0) {
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343 | throwException(tr("Incomplete <member> specification with ref=0"));
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344 | }
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345 | jumpToEnd();
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346 | return new RelationMemberData(role, type, id);
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347 | }
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348 |
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349 | private void parseChangeset(Long uploadChangesetId) throws XMLStreamException {
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350 |
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351 | Long id = null;
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352 | if (parser.getAttributeValue(null, "id") != null) {
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353 | id = getLong("id");
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354 | }
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355 | // Read changeset info if neither upload-changeset nor id are set, or if they are both set to the same value
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356 | if (id == uploadChangesetId || (id != null && id.equals(uploadChangesetId))) {
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357 | uploadChangeset = new Changeset(id != null ? id.intValue() : 0);
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358 | while (true) {
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359 | int event = parser.next();
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360 | if (event == XMLStreamConstants.START_ELEMENT) {
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361 | if ("tag".equals(parser.getLocalName())) {
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362 | parseTag(uploadChangeset);
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363 | } else {
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364 | parseUnknown();
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365 | }
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366 | } else if (event == XMLStreamConstants.END_ELEMENT)
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367 | return;
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368 | }
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369 | } else {
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370 | jumpToEnd(false);
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371 | }
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372 | }
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373 |
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374 | private void parseTag(Tagged t) throws XMLStreamException {
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375 | String key = parser.getAttributeValue(null, "k");
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376 | String value = parser.getAttributeValue(null, "v");
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377 | if (key == null || value == null) {
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378 | throwException(tr("Missing key or value attribute in tag."));
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379 | } else {
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380 | t.put(key.intern(), value.intern());
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381 | }
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382 | jumpToEnd();
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383 | }
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384 |
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385 | protected void parseUnknown(boolean printWarning) throws XMLStreamException {
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386 | final String element = parser.getLocalName();
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387 | if (printWarning && ("note".equals(element) || "meta".equals(element))) {
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388 | // we know that Overpass API returns those elements
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389 | Main.debug(tr("Undefined element ''{0}'' found in input stream. Skipping.", element));
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390 | } else if (printWarning) {
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391 | Main.info(tr("Undefined element ''{0}'' found in input stream. Skipping.", element));
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392 | }
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393 | while (true) {
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394 | int event = parser.next();
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395 | if (event == XMLStreamConstants.START_ELEMENT) {
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396 | parseUnknown(false); /* no more warning for inner elements */
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397 | } else if (event == XMLStreamConstants.END_ELEMENT)
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398 | return;
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399 | }
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400 | }
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401 |
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402 | protected void parseUnknown() throws XMLStreamException {
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403 | parseUnknown(true);
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404 | }
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405 |
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406 | /**
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407 | * When cursor is at the start of an element, moves it to the end tag of that element.
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408 | * Nested content is skipped.
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409 | *
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410 | * This is basically the same code as parseUnknown(), except for the warnings, which
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411 | * are displayed for inner elements and not at top level.
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412 | * @param printWarning if {@code true}, a warning message will be printed if an unknown element is met
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413 | * @throws XMLStreamException if there is an error processing the underlying XML source
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414 | */
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415 | private void jumpToEnd(boolean printWarning) throws XMLStreamException {
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416 | while (true) {
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417 | int event = parser.next();
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418 | if (event == XMLStreamConstants.START_ELEMENT) {
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419 | parseUnknown(printWarning);
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420 | } else if (event == XMLStreamConstants.END_ELEMENT)
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421 | return;
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422 | }
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423 | }
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424 |
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425 | private void jumpToEnd() throws XMLStreamException {
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426 | jumpToEnd(true);
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427 | }
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428 |
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429 | private User createUser(String uid, String name) throws XMLStreamException {
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430 | if (uid == null) {
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431 | if (name == null)
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432 | return null;
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433 | return User.createLocalUser(name);
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434 | }
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435 | try {
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436 | long id = Long.parseLong(uid);
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437 | return User.createOsmUser(id, name);
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438 | } catch (NumberFormatException e) {
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439 | throwException(MessageFormat.format("Illegal value for attribute ''uid''. Got ''{0}''.", uid), e);
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440 | }
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441 | return null;
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442 | }
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443 |
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444 | /**
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445 | * Read out the common attributes and put them into current OsmPrimitive.
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446 | * @param current primitive to update
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447 | * @throws XMLStreamException if there is an error processing the underlying XML source
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448 | */
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449 | private void readCommon(PrimitiveData current) throws XMLStreamException {
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450 | current.setId(getLong("id"));
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451 | if (current.getUniqueId() == 0) {
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452 | throwException(tr("Illegal object with ID=0."));
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453 | }
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454 |
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455 | String time = parser.getAttributeValue(null, "timestamp");
|
---|
456 | if (time != null && !time.isEmpty()) {
|
---|
457 | current.setRawTimestamp((int) (DateUtils.tsFromString(time)/1000));
|
---|
458 | }
|
---|
459 |
|
---|
460 | String user = parser.getAttributeValue(null, "user");
|
---|
461 | String uid = parser.getAttributeValue(null, "uid");
|
---|
462 | current.setUser(createUser(uid, user));
|
---|
463 |
|
---|
464 | String visible = parser.getAttributeValue(null, "visible");
|
---|
465 | if (visible != null) {
|
---|
466 | current.setVisible(Boolean.parseBoolean(visible));
|
---|
467 | }
|
---|
468 |
|
---|
469 | String versionString = parser.getAttributeValue(null, "version");
|
---|
470 | int version = 0;
|
---|
471 | if (versionString != null) {
|
---|
472 | try {
|
---|
473 | version = Integer.parseInt(versionString);
|
---|
474 | } catch (NumberFormatException e) {
|
---|
475 | throwException(tr("Illegal value for attribute ''version'' on OSM primitive with ID {0}. Got {1}.",
|
---|
476 | Long.toString(current.getUniqueId()), versionString), e);
|
---|
477 | }
|
---|
478 | switch (ds.getVersion()) {
|
---|
479 | case "0.6":
|
---|
480 | if (version <= 0 && !current.isNew()) {
|
---|
481 | throwException(tr("Illegal value for attribute ''version'' on OSM primitive with ID {0}. Got {1}.",
|
---|
482 | Long.toString(current.getUniqueId()), versionString));
|
---|
483 | } else if (version < 0 && current.isNew()) {
|
---|
484 | Main.warn(tr("Normalizing value of attribute ''version'' of element {0} to {2}, API version is ''{3}''. Got {1}.",
|
---|
485 | current.getUniqueId(), version, 0, "0.6"));
|
---|
486 | version = 0;
|
---|
487 | }
|
---|
488 | break;
|
---|
489 | default:
|
---|
490 | // should not happen. API version has been checked before
|
---|
491 | throwException(tr("Unknown or unsupported API version. Got {0}.", ds.getVersion()));
|
---|
492 | }
|
---|
493 | } else {
|
---|
494 | // version expected for OSM primitives with an id assigned by the server (id > 0), since API 0.6
|
---|
495 | if (!current.isNew() && ds.getVersion() != null && "0.6".equals(ds.getVersion())) {
|
---|
496 | throwException(tr("Missing attribute ''version'' on OSM primitive with ID {0}.", Long.toString(current.getUniqueId())));
|
---|
497 | }
|
---|
498 | }
|
---|
499 | current.setVersion(version);
|
---|
500 |
|
---|
501 | String action = parser.getAttributeValue(null, "action");
|
---|
502 | if (action == null) {
|
---|
503 | // do nothing
|
---|
504 | } else if ("delete".equals(action)) {
|
---|
505 | current.setDeleted(true);
|
---|
506 | current.setModified(current.isVisible());
|
---|
507 | } else if ("modify".equals(action)) {
|
---|
508 | current.setModified(true);
|
---|
509 | }
|
---|
510 |
|
---|
511 | String v = parser.getAttributeValue(null, "changeset");
|
---|
512 | if (v == null) {
|
---|
513 | current.setChangesetId(0);
|
---|
514 | } else {
|
---|
515 | try {
|
---|
516 | current.setChangesetId(Integer.parseInt(v));
|
---|
517 | } catch (IllegalArgumentException e) {
|
---|
518 | Main.debug(e.getMessage());
|
---|
519 | if (current.isNew()) {
|
---|
520 | // for a new primitive we just log a warning
|
---|
521 | Main.info(tr("Illegal value for attribute ''changeset'' on new object {1}. Got {0}. Resetting to 0.",
|
---|
522 | v, current.getUniqueId()));
|
---|
523 | current.setChangesetId(0);
|
---|
524 | } else {
|
---|
525 | // for an existing primitive this is a problem
|
---|
526 | throwException(tr("Illegal value for attribute ''changeset''. Got {0}.", v), e);
|
---|
527 | }
|
---|
528 | } catch (IllegalStateException e) {
|
---|
529 | // thrown for positive changeset id on new primitives
|
---|
530 | Main.info(e.getMessage());
|
---|
531 | current.setChangesetId(0);
|
---|
532 | }
|
---|
533 | if (current.getChangesetId() <= 0) {
|
---|
534 | if (current.isNew()) {
|
---|
535 | // for a new primitive we just log a warning
|
---|
536 | Main.info(tr("Illegal value for attribute ''changeset'' on new object {1}. Got {0}. Resetting to 0.",
|
---|
537 | v, current.getUniqueId()));
|
---|
538 | current.setChangesetId(0);
|
---|
539 | } else {
|
---|
540 | // for an existing primitive this is a problem
|
---|
541 | throwException(tr("Illegal value for attribute ''changeset''. Got {0}.", v));
|
---|
542 | }
|
---|
543 | }
|
---|
544 | }
|
---|
545 | }
|
---|
546 |
|
---|
547 | private long getLong(String name) throws XMLStreamException {
|
---|
548 | String value = parser.getAttributeValue(null, name);
|
---|
549 | if (value == null) {
|
---|
550 | throwException(tr("Missing required attribute ''{0}''.", name));
|
---|
551 | }
|
---|
552 | try {
|
---|
553 | return Long.parseLong(value);
|
---|
554 | } catch (NumberFormatException e) {
|
---|
555 | throwException(tr("Illegal long value for attribute ''{0}''. Got ''{1}''.", name, value), e);
|
---|
556 | }
|
---|
557 | return 0; // should not happen
|
---|
558 | }
|
---|
559 |
|
---|
560 | private static class OsmParsingException extends XMLStreamException {
|
---|
561 |
|
---|
562 | OsmParsingException(String msg, Location location) {
|
---|
563 | super(msg); /* cannot use super(msg, location) because it messes with the message preventing localization */
|
---|
564 | this.location = location;
|
---|
565 | }
|
---|
566 |
|
---|
567 | OsmParsingException(String msg, Location location, Throwable th) {
|
---|
568 | super(msg, th);
|
---|
569 | this.location = location;
|
---|
570 | }
|
---|
571 |
|
---|
572 | @Override
|
---|
573 | public String getMessage() {
|
---|
574 | String msg = super.getMessage();
|
---|
575 | if (msg == null) {
|
---|
576 | msg = getClass().getName();
|
---|
577 | }
|
---|
578 | if (getLocation() == null)
|
---|
579 | return msg;
|
---|
580 | msg += ' ' + tr("(at line {0}, column {1})", getLocation().getLineNumber(), getLocation().getColumnNumber());
|
---|
581 | int offset = getLocation().getCharacterOffset();
|
---|
582 | if (offset > -1) {
|
---|
583 | msg += ". "+ tr("{0} bytes have been read", offset);
|
---|
584 | }
|
---|
585 | return msg;
|
---|
586 | }
|
---|
587 | }
|
---|
588 |
|
---|
589 | /**
|
---|
590 | * Exception thrown after user cancelation.
|
---|
591 | */
|
---|
592 | private static final class OsmParsingCanceledException extends OsmParsingException implements ImportCancelException {
|
---|
593 | /**
|
---|
594 | * Constructs a new {@code OsmParsingCanceledException}.
|
---|
595 | * @param msg The error message
|
---|
596 | * @param location The parser location
|
---|
597 | */
|
---|
598 | OsmParsingCanceledException(String msg, Location location) {
|
---|
599 | super(msg, location);
|
---|
600 | }
|
---|
601 | }
|
---|
602 |
|
---|
603 | protected DataSet doParseDataSet(InputStream source, ProgressMonitor progressMonitor) throws IllegalDataException {
|
---|
604 | if (progressMonitor == null) {
|
---|
605 | progressMonitor = NullProgressMonitor.INSTANCE;
|
---|
606 | }
|
---|
607 | ProgressMonitor.CancelListener cancelListener = new ProgressMonitor.CancelListener() {
|
---|
608 | @Override public void operationCanceled() {
|
---|
609 | cancel = true;
|
---|
610 | }
|
---|
611 | };
|
---|
612 | progressMonitor.addCancelListener(cancelListener);
|
---|
613 | CheckParameterUtil.ensureParameterNotNull(source, "source");
|
---|
614 | try {
|
---|
615 | progressMonitor.beginTask(tr("Prepare OSM data...", 2));
|
---|
616 | progressMonitor.indeterminateSubTask(tr("Parsing OSM data..."));
|
---|
617 |
|
---|
618 | try (InputStreamReader ir = UTFInputStreamReader.create(source)) {
|
---|
619 | XMLStreamReader parser = XMLInputFactory.newInstance().createXMLStreamReader(ir);
|
---|
620 | setParser(parser);
|
---|
621 | parse();
|
---|
622 | }
|
---|
623 | progressMonitor.worked(1);
|
---|
624 |
|
---|
625 | progressMonitor.indeterminateSubTask(tr("Preparing data set..."));
|
---|
626 | prepareDataSet();
|
---|
627 | progressMonitor.worked(1);
|
---|
628 |
|
---|
629 | // iterate over registered postprocessors and give them each a chance
|
---|
630 | // to modify the dataset we have just loaded.
|
---|
631 | if (postprocessors != null) {
|
---|
632 | for (OsmServerReadPostprocessor pp : postprocessors) {
|
---|
633 | pp.postprocessDataSet(getDataSet(), progressMonitor);
|
---|
634 | }
|
---|
635 | }
|
---|
636 | return getDataSet();
|
---|
637 | } catch (IllegalDataException e) {
|
---|
638 | throw e;
|
---|
639 | } catch (OsmParsingException e) {
|
---|
640 | throw new IllegalDataException(e.getMessage(), e);
|
---|
641 | } catch (XMLStreamException e) {
|
---|
642 | String msg = e.getMessage();
|
---|
643 | Pattern p = Pattern.compile("Message: (.+)");
|
---|
644 | Matcher m = p.matcher(msg);
|
---|
645 | if (m.find()) {
|
---|
646 | msg = m.group(1);
|
---|
647 | }
|
---|
648 | if (e.getLocation() != null)
|
---|
649 | throw new IllegalDataException(tr("Line {0} column {1}: ",
|
---|
650 | e.getLocation().getLineNumber(), e.getLocation().getColumnNumber()) + msg, e);
|
---|
651 | else
|
---|
652 | throw new IllegalDataException(msg, e);
|
---|
653 | } catch (Exception e) {
|
---|
654 | throw new IllegalDataException(e);
|
---|
655 | } finally {
|
---|
656 | progressMonitor.finishTask();
|
---|
657 | progressMonitor.removeCancelListener(cancelListener);
|
---|
658 | }
|
---|
659 | }
|
---|
660 |
|
---|
661 | /**
|
---|
662 | * Parse the given input source and return the dataset.
|
---|
663 | *
|
---|
664 | * @param source the source input stream. Must not be null.
|
---|
665 | * @param progressMonitor the progress monitor. If null, {@link NullProgressMonitor#INSTANCE} is assumed
|
---|
666 | *
|
---|
667 | * @return the dataset with the parsed data
|
---|
668 | * @throws IllegalDataException if an error was found while parsing the data from the source
|
---|
669 | * @throws IllegalArgumentException if source is null
|
---|
670 | */
|
---|
671 | public static DataSet parseDataSet(InputStream source, ProgressMonitor progressMonitor) throws IllegalDataException {
|
---|
672 | return new OsmReader().doParseDataSet(source, progressMonitor);
|
---|
673 | }
|
---|
674 | }
|
---|