1 | //License: GPL. See README for details.
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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.BufferedReader;
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7 | import java.io.BufferedWriter;
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8 | import java.io.IOException;
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9 | import java.io.InputStream;
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10 | import java.io.InputStreamReader;
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11 | import java.io.OutputStream;
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12 | import java.io.OutputStreamWriter;
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13 | import java.io.PrintWriter;
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14 | import java.io.StringReader;
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15 | import java.io.StringWriter;
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16 | import java.net.ConnectException;
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17 | import java.net.HttpURLConnection;
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18 | import java.net.SocketTimeoutException;
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19 | import java.net.URL;
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20 | import java.net.UnknownHostException;
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21 | import java.util.ArrayList;
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22 | import java.util.Collection;
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23 | import java.util.Collections;
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24 | import java.util.HashMap;
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25 |
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26 | import javax.xml.parsers.SAXParserFactory;
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27 |
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28 | import org.openstreetmap.josm.Main;
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29 | import org.openstreetmap.josm.data.osm.Changeset;
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30 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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31 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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32 | import org.openstreetmap.josm.data.osm.visitor.CreateOsmChangeVisitor;
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33 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
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34 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
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35 | import org.xml.sax.Attributes;
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36 | import org.xml.sax.InputSource;
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37 | import org.xml.sax.SAXException;
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38 | import org.xml.sax.helpers.DefaultHandler;
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39 |
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40 | /**
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41 | * Class that encapsulates the communications with the OSM API.
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42 | *
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43 | * All interaction with the server-side OSM API should go through this class.
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44 | *
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45 | * It is conceivable to extract this into an interface later and create various
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46 | * classes implementing the interface, to be able to talk to various kinds of servers.
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47 | *
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48 | */
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49 | public class OsmApi extends OsmConnection {
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50 | /** max number of retries to send a request in case of HTTP 500 errors or timeouts */
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51 | static public final int DEFAULT_MAX_NUM_RETRIES = 5;
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52 |
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53 | /** the collection of instantiated OSM APIs */
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54 | private static HashMap<String, OsmApi> instances = new HashMap<String, OsmApi>();
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55 |
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56 | /**
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57 | * replies the {@see OsmApi} for a given server URL
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58 | *
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59 | * @param serverUrl the server URL
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60 | * @return the OsmApi
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61 | * @throws IllegalArgumentException thrown, if serverUrl is null
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62 | *
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63 | */
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64 | static public OsmApi getOsmApi(String serverUrl) {
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65 | OsmApi api = instances.get(serverUrl);
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66 | if (api == null) {
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67 | api = new OsmApi(serverUrl);
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68 | instances.put(serverUrl,api);
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69 | }
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70 | return api;
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71 | }
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72 | /**
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73 | * replies the {@see OsmApi} for the URL given by the preference <code>osm-server.url</code>
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74 | *
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75 | * @return the OsmApi
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76 | * @exception IllegalStateException thrown, if the preference <code>osm-server.url</code> is not set
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77 | *
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78 | */
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79 | static public OsmApi getOsmApi() {
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80 | String serverUrl = Main.pref.get("osm-server.url", "http://api.openstreetmap.org/api");
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81 | if (serverUrl == null)
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82 | throw new IllegalStateException(tr("preference ''{0}'' missing. Can't initialize OsmApi", "osm-server.url"));
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83 | return getOsmApi(serverUrl);
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84 | }
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85 |
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86 | /** the server URL */
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87 | private String serverUrl;
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88 |
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89 | /**
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90 | * Object describing current changeset
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91 | */
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92 | private Changeset changeset;
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93 |
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94 | /**
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95 | * API version used for server communications
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96 | */
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97 | private String version = null;
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98 |
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99 | /** the api capabilities */
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100 | private Capabilities capabilities = new Capabilities();
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101 |
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102 | /**
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103 | * true if successfully initialized
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104 | */
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105 | private boolean initialized = false;
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106 |
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107 | private StringWriter swriter = new StringWriter();
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108 | private OsmWriter osmWriter = new OsmWriter(new PrintWriter(swriter), true, null);
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109 |
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110 | /**
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111 | * A parser for the "capabilities" response XML
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112 | */
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113 | private class CapabilitiesParser extends DefaultHandler {
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114 | @Override
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115 | public void startDocument() throws SAXException {
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116 | capabilities.clear();
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117 | }
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118 |
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119 | @Override public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
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120 | for (int i=0; i< qName.length(); i++) {
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121 | capabilities.put(qName, atts.getQName(i), atts.getValue(i));
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122 | }
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123 | }
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124 | }
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125 |
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126 | /**
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127 | * creates an OSM api for a specific server URL
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128 | *
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129 | * @param serverUrl the server URL. Must not be null
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130 | * @exception IllegalArgumentException thrown, if serverUrl is null
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131 | */
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132 | protected OsmApi(String serverUrl) {
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133 | if (serverUrl == null)
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134 | throw new IllegalArgumentException(tr("parameter ''{0}'' must not be null", "serverUrl"));
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135 | this.serverUrl = serverUrl;
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136 | }
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137 |
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138 | /**
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139 | * Returns the OSM protocol version we use to talk to the server.
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140 | * @return protocol version, or null if not yet negotiated.
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141 | */
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142 | public String getVersion() {
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143 | return version;
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144 | }
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145 |
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146 | /**
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147 | * Returns true if the negotiated version supports diff uploads.
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148 | * @return true if the negotiated version supports diff uploads
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149 | */
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150 | public boolean hasSupportForDiffUploads() {
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151 | return ((version != null) && (version.compareTo("0.6")>=0));
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152 | }
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153 |
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154 | /**
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155 | * Initializes this component by negotiating a protocol version with the server.
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156 | *
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157 | * @exception OsmApiInitializationException thrown, if an exception occurs
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158 | */
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159 | public void initialize(ProgressMonitor monitor) throws OsmApiInitializationException {
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160 | if (initialized)
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161 | return;
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162 | cancel = false;
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163 | initAuthentication();
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164 | try {
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165 | String s = sendRequest("GET", "capabilities", null,monitor);
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166 | InputSource inputSource = new InputSource(new StringReader(s));
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167 | SAXParserFactory.newInstance().newSAXParser().parse(inputSource, new CapabilitiesParser());
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168 | if (capabilities.supportsVersion("0.6")) {
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169 | version = "0.6";
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170 | } else if (capabilities.supportsVersion("0.5")) {
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171 | version = "0.5";
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172 | } else {
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173 | System.err.println(tr("This version of JOSM is incompatible with the configured server."));
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174 | System.err.println(tr("It supports protocol versions 0.5 and 0.6, while the server says it supports {0} to {1}.",
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175 | capabilities.get("version", "minimum"), capabilities.get("version", "maximum")));
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176 | initialized = false;
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177 | }
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178 | System.out.println(tr("Communications with {0} established using protocol version {1}",
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179 | serverUrl,
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180 | version));
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181 | osmWriter.setVersion(version);
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182 | initialized = true;
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183 | } catch (Exception ex) {
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184 | initialized = false;
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185 | throw new OsmApiInitializationException(ex);
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186 | }
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187 | }
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188 |
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189 | /**
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190 | * Makes an XML string from an OSM primitive. Uses the OsmWriter class.
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191 | * @param o the OSM primitive
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192 | * @param addBody true to generate the full XML, false to only generate the encapsulating tag
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193 | * @return XML string
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194 | */
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195 | private String toXml(OsmPrimitive o, boolean addBody) {
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196 | swriter.getBuffer().setLength(0);
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197 | osmWriter.setWithBody(addBody);
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198 | osmWriter.setChangeset(changeset);
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199 | osmWriter.header();
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200 | o.visit(osmWriter);
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201 | osmWriter.footer();
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202 | osmWriter.out.flush();
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203 | return swriter.toString();
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204 | }
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205 |
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206 | /**
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207 | * Makes an XML string from an OSM primitive. Uses the OsmWriter class.
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208 | * @param o the OSM primitive
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209 | * @param addBody true to generate the full XML, false to only generate the encapsulating tag
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210 | * @return XML string
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211 | */
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212 | private String toXml(Changeset s) {
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213 | swriter.getBuffer().setLength(0);
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214 | osmWriter.header();
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215 | s.visit(osmWriter);
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216 | osmWriter.footer();
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217 | osmWriter.out.flush();
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218 | return swriter.toString();
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219 | }
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220 |
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221 | /**
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222 | * Returns the base URL for API requests, including the negotiated version number.
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223 | * @return base URL string
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224 | */
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225 | public String getBaseUrl() {
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226 | StringBuffer rv = new StringBuffer(serverUrl);
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227 | if (version != null) {
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228 | rv.append("/");
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229 | rv.append(version);
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230 | }
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231 | rv.append("/");
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232 | // this works around a ruby (or lighttpd) bug where two consecutive slashes in
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233 | // an URL will cause a "404 not found" response.
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234 | int p; while ((p = rv.indexOf("//", 6)) > -1) { rv.delete(p, p + 1); }
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235 | return rv.toString();
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236 | }
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237 |
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238 | /**
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239 | * Creates an OSM primitive on the server. The OsmPrimitive object passed in
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240 | * is modified by giving it the server-assigned id.
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241 | *
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242 | * @param osm the primitive
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243 | * @throws OsmTransferException if something goes wrong
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244 | */
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245 | public void createPrimitive(OsmPrimitive osm, ProgressMonitor monitor) throws OsmTransferException {
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246 | String ret = "";
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247 | try {
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248 | ensureValidChangeset();
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249 | initialize(monitor);
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250 | ret = sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/create", toXml(osm, true),monitor);
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251 | osm.setOsmId(Long.parseLong(ret.trim()), 1);
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252 | } catch(NumberFormatException e){
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253 | throw new OsmTransferException(tr("unexpected format of id replied by the server, got ''{0}''", ret));
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254 | }
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255 | }
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256 |
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257 | /**
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258 | * Modifies an OSM primitive on the server. For protocols greater than 0.5,
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259 | * the OsmPrimitive object passed in is modified by giving it the server-assigned
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260 | * version.
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261 | *
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262 | * @param osm the primitive. Must not be null
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263 | * @throws OsmTransferException if something goes wrong
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264 | */
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265 | public void modifyPrimitive(OsmPrimitive osm, ProgressMonitor monitor) throws OsmTransferException {
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266 | String ret = null;
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267 | try {
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268 | ensureValidChangeset();
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269 | initialize(monitor);
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270 | if (version.equals("0.5")) {
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271 | // legacy mode does not return the new object version.
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272 | sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/" + osm.getId(), toXml(osm, true),monitor);
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273 | } else {
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274 | // normal mode (0.6 and up) returns new object version.
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275 | ret = sendRequest("PUT", OsmPrimitiveType.from(osm).getAPIName()+"/" + osm.getId(), toXml(osm, true), monitor);
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276 | osm.setOsmId(osm.getId(), Integer.parseInt(ret.trim()));
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277 | }
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278 | } catch(NumberFormatException e) {
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279 | throw new OsmTransferException(tr("unexpected format of new version of modified primitive ''{0}'', got ''{1}''", osm.getId(), ret));
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280 | }
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281 | }
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282 |
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283 | /**
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284 | * Deletes an OSM primitive on the server.
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285 | * @param osm the primitive
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286 | * @throws OsmTransferException if something goes wrong
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287 | */
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288 | public void deletePrimitive(OsmPrimitive osm, ProgressMonitor monitor) throws OsmTransferException {
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289 | ensureValidChangeset();
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290 | initialize(monitor);
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291 | // can't use a the individual DELETE method in the 0.6 API. Java doesn't allow
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292 | // submitting a DELETE request with content, the 0.6 API requires it, however. Falling back
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293 | // to diff upload.
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294 | //
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295 | uploadDiff(Collections.singleton(osm), monitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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296 | }
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297 |
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298 |
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299 | /**
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300 | * Creates a new changeset based on the keys in <code>changeset</code>. If this
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301 | * method succeeds, changeset.getId() replies the id the server assigned to the new
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302 | * changeset
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303 | *
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304 | * The changeset must not be null, but its key/value-pairs may be empty.
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305 | *
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306 | * @param changeset the changeset toe be created. Must not be null.
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307 | * @param progressMonitor the progress monitor
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308 | * @throws OsmTransferException signifying a non-200 return code, or connection errors
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309 | * @throws IllegalArgumentException thrown if changeset is null
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310 | */
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311 | public void openChangeset(Changeset changeset, ProgressMonitor progressMonitor) throws OsmTransferException {
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312 | if (changeset == null)
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313 | throw new IllegalArgumentException(tr("parameter ''{0}'' must not be null", "changeset"));
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314 | try {
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315 | progressMonitor.beginTask((tr("Creating changeset...")));
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316 | initialize(progressMonitor);
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317 | String ret = "";
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318 | try {
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319 | ret = sendRequest("PUT", "changeset/create", toXml(changeset),progressMonitor);
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320 | changeset.setId(Long.parseLong(ret.trim()));
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321 | changeset.setOpen(true);
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322 | } catch(NumberFormatException e){
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323 | throw new OsmTransferException(tr("unexpected format of id replied by the server, got ''{0}''", ret));
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324 | }
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325 | progressMonitor.setCustomText((tr("Successfully opened changeset {0}",changeset.getId())));
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326 | } finally {
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327 | progressMonitor.finishTask();
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328 | }
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329 | }
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330 |
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331 | /**
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332 | * Updates a changeset with the keys in <code>changesetUpdate</code>. The changeset must not
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333 | * be null and id > 0 must be true.
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334 | *
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335 | * @param changeset the changeset to update. Must not be null.
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336 | * @param monitor the progress monitor. If null, uses the {@see NullProgressMonitor#INSTANCE}.
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337 | *
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338 | * @throws OsmTransferException if something goes wrong.
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339 | * @throws IllegalArgumentException if changeset is null
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340 | * @throws IllegalArgumentException if changeset.getId() == 0
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341 | *
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342 | */
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343 | public void updateChangeset(Changeset changeset, ProgressMonitor monitor) throws OsmTransferException {
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344 | if (changeset == null)
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345 | throw new IllegalArgumentException(tr("parameter ''{0}'' must not be null", "changeset"));
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346 | if (monitor == null) {
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347 | monitor = NullProgressMonitor.INSTANCE;
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348 | }
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349 | if (changeset.getId() <= 0)
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350 | throw new IllegalArgumentException(tr("id of changeset > 0 required. Got {0}", changeset.getId()));
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351 | try {
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352 | monitor.beginTask(tr("Updating changeset..."));
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353 | initialize(monitor);
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354 | monitor.setCustomText(tr("Updating changeset {0}...", changeset.getId()));
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355 | sendRequest(
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356 | "PUT",
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357 | "changeset/" + changeset.getId(),
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358 | toXml(changeset),
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359 | monitor
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360 | );
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361 | } finally {
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362 | monitor.finishTask();
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363 | }
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364 | }
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365 |
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366 |
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367 | /**
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368 | * Closes a changeset on the server. Sets changeset.setOpen(false) if this operation
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369 | * succeeds.
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370 | *
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371 | * @param changeset the changeset to be closed. Must not be null. changeset.getId() > 0 required.
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372 | * @param monitor the progress monitor. If null, uses {@see NullProgressMonitor#INSTANCE}
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373 | *
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374 | * @throws OsmTransferException if something goes wrong.
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375 | * @throws IllegalArgumentException thrown if changeset is null
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376 | * @throws IllegalArgumentException thrown if changeset.getId() <= 0
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377 | */
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378 | public void closeChangeset(Changeset changeset, ProgressMonitor monitor) throws OsmTransferException {
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379 | if (changeset == null)
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380 | throw new IllegalArgumentException(tr("parameter ''{0}'' must not be null", "changeset"));
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381 | if (monitor == null) {
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382 | monitor = NullProgressMonitor.INSTANCE;
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383 | }
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384 | if (changeset.getId() <= 0)
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385 | throw new IllegalArgumentException(tr("id of changeset > 0 required. Got {0}", changeset.getId()));
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386 | try {
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387 | monitor.beginTask(tr("Closing changeset..."));
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388 | initialize(monitor);
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389 | sendRequest("PUT", "changeset" + "/" + changeset.getId() + "/close", null, monitor);
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390 | changeset.setOpen(false);
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391 | } finally {
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392 | monitor.finishTask();
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393 | }
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394 | }
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395 |
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396 | /**
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397 | * Uploads a list of changes in "diff" form to the server.
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398 | *
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399 | * @param list the list of changed OSM Primitives
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400 | * @return list of processed primitives
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401 | * @throws OsmTransferException if something is wrong
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402 | */
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403 | public Collection<OsmPrimitive> uploadDiff(Collection<OsmPrimitive> list, ProgressMonitor progressMonitor) throws OsmTransferException {
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404 | try {
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405 | progressMonitor.beginTask("", list.size() * 2);
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406 | if (changeset == null)
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407 | throw new OsmTransferException(tr("No changeset present for diff upload"));
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408 |
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409 | initialize(progressMonitor);
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410 | final ArrayList<OsmPrimitive> processed = new ArrayList<OsmPrimitive>();
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411 |
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412 | CreateOsmChangeVisitor duv = new CreateOsmChangeVisitor(changeset, OsmApi.this);
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413 |
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414 | progressMonitor.subTask(tr("Preparing..."));
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415 | for (OsmPrimitive osm : list) {
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416 | osm.visit(duv);
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417 | progressMonitor.worked(1);
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418 | }
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419 | progressMonitor.indeterminateSubTask(tr("Uploading..."));
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420 |
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421 | String diff = duv.getDocument();
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422 | String diffresult = sendRequest("POST", "changeset/" + changeset.getId() + "/upload", diff,progressMonitor);
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423 | DiffResultReader.parseDiffResult(diffresult, list, processed, duv.getNewIdMap(),
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424 | progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false));
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425 | return processed;
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426 | } catch(OsmTransferException e) {
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427 | throw e;
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428 | } catch(Exception e) {
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429 | throw new OsmTransferException(e);
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430 | } finally {
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431 | progressMonitor.finishTask();
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432 | }
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433 | }
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434 |
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435 |
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436 |
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437 | private void sleepAndListen(int retry, ProgressMonitor monitor) throws OsmTransferCancelledException {
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438 | System.out.print(tr("Waiting 10 seconds ... "));
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439 | for(int i=0; i < 10; i++) {
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440 | if (monitor != null) {
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441 | monitor.setCustomText(tr("Starting retry {0} of {1} in {2} seconds ...", getMaxRetries() - retry,getMaxRetries(), 10-i));
|
---|
442 | }
|
---|
443 | if (cancel || isAuthCancelled())
|
---|
444 | throw new OsmTransferCancelledException();
|
---|
445 | try {
|
---|
446 | Thread.sleep(1000);
|
---|
447 | } catch (InterruptedException ex) {}
|
---|
448 | }
|
---|
449 | System.out.println(tr("OK - trying again."));
|
---|
450 | }
|
---|
451 |
|
---|
452 | /**
|
---|
453 | * Replies the max. number of retries in case of 5XX errors on the server
|
---|
454 | *
|
---|
455 | * @return the max number of retries
|
---|
456 | */
|
---|
457 | protected int getMaxRetries() {
|
---|
458 | int ret = Main.pref.getInteger("osm-server.max-num-retries", DEFAULT_MAX_NUM_RETRIES);
|
---|
459 | return Math.max(ret,0);
|
---|
460 | }
|
---|
461 |
|
---|
462 | /**
|
---|
463 | * Generic method for sending requests to the OSM API.
|
---|
464 | *
|
---|
465 | * This method will automatically re-try any requests that are answered with a 5xx
|
---|
466 | * error code, or that resulted in a timeout exception from the TCP layer.
|
---|
467 | *
|
---|
468 | * @param requestMethod The http method used when talking with the server.
|
---|
469 | * @param urlSuffix The suffix to add at the server url, not including the version number,
|
---|
470 | * but including any object ids (e.g. "/way/1234/history").
|
---|
471 | * @param requestBody the body of the HTTP request, if any.
|
---|
472 | *
|
---|
473 | * @return the body of the HTTP response, if and only if the response code was "200 OK".
|
---|
474 | * @exception OsmTransferException if the HTTP return code was not 200 (and retries have
|
---|
475 | * been exhausted), or rewrapping a Java exception.
|
---|
476 | */
|
---|
477 | private String sendRequest(String requestMethod, String urlSuffix,String requestBody, ProgressMonitor monitor) throws OsmTransferException {
|
---|
478 | StringBuffer responseBody = new StringBuffer();
|
---|
479 |
|
---|
480 | int retries = getMaxRetries();
|
---|
481 |
|
---|
482 | while(true) { // the retry loop
|
---|
483 | try {
|
---|
484 | URL url = new URL(new URL(getBaseUrl()), urlSuffix);
|
---|
485 | System.out.print(requestMethod + " " + url + "... ");
|
---|
486 | activeConnection = (HttpURLConnection)url.openConnection();
|
---|
487 | activeConnection.setConnectTimeout(15000);
|
---|
488 | activeConnection.setRequestMethod(requestMethod);
|
---|
489 | addAuth(activeConnection);
|
---|
490 |
|
---|
491 | if (requestMethod.equals("PUT") || requestMethod.equals("POST") || requestMethod.equals("DELETE")) {
|
---|
492 | activeConnection.setDoOutput(true);
|
---|
493 | activeConnection.setRequestProperty("Content-type", "text/xml");
|
---|
494 | OutputStream out = activeConnection.getOutputStream();
|
---|
495 |
|
---|
496 | // It seems that certain bits of the Ruby API are very unhappy upon
|
---|
497 | // receipt of a PUT/POST message withtout a Content-length header,
|
---|
498 | // even if the request has no payload.
|
---|
499 | // Since Java will not generate a Content-length header unless
|
---|
500 | // we use the output stream, we create an output stream for PUT/POST
|
---|
501 | // even if there is no payload.
|
---|
502 | if (requestBody != null) {
|
---|
503 | BufferedWriter bwr = new BufferedWriter(new OutputStreamWriter(out, "UTF-8"));
|
---|
504 | bwr.write(requestBody);
|
---|
505 | bwr.flush();
|
---|
506 | }
|
---|
507 | out.close();
|
---|
508 | }
|
---|
509 |
|
---|
510 | activeConnection.connect();
|
---|
511 | System.out.println(activeConnection.getResponseMessage());
|
---|
512 | int retCode = activeConnection.getResponseCode();
|
---|
513 |
|
---|
514 | if (retCode >= 500) {
|
---|
515 | if (retries-- > 0) {
|
---|
516 | sleepAndListen(retries, monitor);
|
---|
517 | System.out.println(tr("Starting retry {0} of {1}.", getMaxRetries() - retries,getMaxRetries()));
|
---|
518 | continue;
|
---|
519 | }
|
---|
520 | }
|
---|
521 |
|
---|
522 | // populate return fields.
|
---|
523 | responseBody.setLength(0);
|
---|
524 |
|
---|
525 | // If the API returned an error code like 403 forbidden, getInputStream
|
---|
526 | // will fail with an IOException.
|
---|
527 | InputStream i = null;
|
---|
528 | try {
|
---|
529 | i = activeConnection.getInputStream();
|
---|
530 | } catch (IOException ioe) {
|
---|
531 | i = activeConnection.getErrorStream();
|
---|
532 | }
|
---|
533 | BufferedReader in = new BufferedReader(new InputStreamReader(i));
|
---|
534 |
|
---|
535 | String s;
|
---|
536 | while((s = in.readLine()) != null) {
|
---|
537 | responseBody.append(s);
|
---|
538 | responseBody.append("\n");
|
---|
539 | }
|
---|
540 | String errorHeader = null;
|
---|
541 | // Look for a detailed error message from the server
|
---|
542 | if (activeConnection.getHeaderField("Error") != null) {
|
---|
543 | errorHeader = activeConnection.getHeaderField("Error");
|
---|
544 | System.err.println("Error header: " + errorHeader);
|
---|
545 | } else if (retCode != 200 && responseBody.length()>0) {
|
---|
546 | System.err.println("Error body: " + responseBody);
|
---|
547 | }
|
---|
548 | activeConnection.disconnect();
|
---|
549 |
|
---|
550 | if (retCode != 200)
|
---|
551 | throw new OsmApiException(
|
---|
552 | retCode,
|
---|
553 | errorHeader == null? null : errorHeader.trim(),
|
---|
554 | responseBody == null ? null : responseBody.toString().trim()
|
---|
555 | );
|
---|
556 |
|
---|
557 | return responseBody.toString();
|
---|
558 | } catch (UnknownHostException e) {
|
---|
559 | throw new OsmTransferException(e);
|
---|
560 | } catch (SocketTimeoutException e) {
|
---|
561 | if (retries-- > 0) {
|
---|
562 | continue;
|
---|
563 | }
|
---|
564 | throw new OsmTransferException(e);
|
---|
565 | } catch (ConnectException e) {
|
---|
566 | if (retries-- > 0) {
|
---|
567 | continue;
|
---|
568 | }
|
---|
569 | throw new OsmTransferException(e);
|
---|
570 | } catch(OsmTransferException e) {
|
---|
571 | throw e;
|
---|
572 | } catch (Exception e) {
|
---|
573 | throw new OsmTransferException(e);
|
---|
574 | }
|
---|
575 | }
|
---|
576 | }
|
---|
577 |
|
---|
578 | /**
|
---|
579 | * returns the API capabilities; null, if the API is not initialized yet
|
---|
580 | *
|
---|
581 | * @return the API capabilities
|
---|
582 | */
|
---|
583 | public Capabilities getCapabilities() {
|
---|
584 | return capabilities;
|
---|
585 | }
|
---|
586 |
|
---|
587 |
|
---|
588 | /**
|
---|
589 | * Ensures that the current changeset can be used for uploading data
|
---|
590 | *
|
---|
591 | * @throws OsmTransferException thrown if the current changeset can't be used for
|
---|
592 | * uploading data
|
---|
593 | */
|
---|
594 | protected void ensureValidChangeset() throws OsmTransferException {
|
---|
595 | if (changeset == null)
|
---|
596 | throw new OsmTransferException(tr("Current changeset is null. Can't upload data."));
|
---|
597 | if (changeset.getId() <= 0)
|
---|
598 | throw new OsmTransferException(tr("id of current changeset > 0 required. Current id is {0}", changeset.getId()));
|
---|
599 | }
|
---|
600 | /**
|
---|
601 | * Replies the changeset data uploads are currently directed to
|
---|
602 | *
|
---|
603 | * @return the changeset data uploads are currently directed to
|
---|
604 | */
|
---|
605 | public Changeset getChangeset() {
|
---|
606 | return changeset;
|
---|
607 | }
|
---|
608 |
|
---|
609 | /**
|
---|
610 | * Sets the changesets to which further data uploads are directed. The changeset
|
---|
611 | * can be null. If it isn't null it must have been created, i.e. id > 0 is required. Furthermore,
|
---|
612 | * it must be open.
|
---|
613 | *
|
---|
614 | * @param changeset the changeset
|
---|
615 | * @throws IllegalArgumentException thrown if changeset.getId() <= 0
|
---|
616 | * @throws IllegalArgumentException thrown if !changeset.isOpen()
|
---|
617 | */
|
---|
618 | public void setChangeset(Changeset changeset) {
|
---|
619 | if (changeset == null) {
|
---|
620 | this.changeset = null;
|
---|
621 | return;
|
---|
622 | }
|
---|
623 | if (changeset.getId() <= 0)
|
---|
624 | throw new IllegalArgumentException(tr("Changeset id > 0 expected. Got {0}", changeset.getId()));
|
---|
625 | if (!changeset.isOpen())
|
---|
626 | throw new IllegalArgumentException(tr("Open changeset expected. Got closed changeset with id {0}", changeset.getId()));
|
---|
627 | this.changeset = changeset;
|
---|
628 | }
|
---|
629 |
|
---|
630 | }
|
---|