// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.io;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.List;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathException;
import javax.xml.xpath.XPathFactory;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.data.osm.UserInfo;
import org.openstreetmap.josm.gui.progress.ProgressMonitor;
import org.openstreetmap.josm.tools.XmlParsingException;
import org.openstreetmap.josm.tools.date.DateUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class OsmServerUserInfoReader extends OsmServerReader {
protected static String getAttribute(Node node, String name) {
return node.getAttributes().getNamedItem(name).getNodeValue();
}
/**
* Parses the given XML data and returns the associated user info.
* @param document The XML contents
* @return The user info
* @throws XmlParsingException if parsing goes wrong
*/
public static UserInfo buildFromXML(Document document) throws XmlParsingException {
try {
XPathFactory factory = XPathFactory.newInstance();
XPath xpath = factory.newXPath();
UserInfo userInfo = new UserInfo();
Node xmlNode = (Node)xpath.compile("/osm/user[1]").evaluate(document, XPathConstants.NODE);
if ( xmlNode== null)
throw new XmlParsingException(tr("XML tag <user> is missing."));
// -- id
String v = getAttribute(xmlNode, "id");
if (v == null)
throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "id", "user"));
try {
userInfo.setId(Integer.parseInt(v));
} catch(NumberFormatException e) {
throw new XmlParsingException(tr("Illegal value for attribute ''{0}'' on XML tag ''{1}''. Got {2}.", "id", "user", v));
}
// -- display name
v = getAttribute(xmlNode, "display_name");
userInfo.setDisplayName(v);
// -- account_created
v = getAttribute(xmlNode, "account_created");
if (v!=null) {
userInfo.setAccountCreated(DateUtils.fromString(v));
}
// -- description
xmlNode = (Node)xpath.compile("/osm/user[1]/description[1]/text()").evaluate(document, XPathConstants.NODE);
if (xmlNode != null) {
userInfo.setDescription(xmlNode.getNodeValue());
}
// -- home
xmlNode = (Node)xpath.compile("/osm/user[1]/home").evaluate(document, XPathConstants.NODE);
if (xmlNode != null) {
v = getAttribute(xmlNode, "lat");
if (v == null)
throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "lat", "home"));
double lat;
try {
lat = Double.parseDouble(v);
} catch(NumberFormatException e) {
throw new XmlParsingException(tr("Illegal value for attribute ''{0}'' on XML tag ''{1}''. Got {2}.", "lat", "home", v));
}
v = getAttribute(xmlNode, "lon");
if (v == null)
throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "lon", "home"));
double lon;
try {
lon = Double.parseDouble(v);
} catch(NumberFormatException e) {
throw new XmlParsingException(tr("Illegal value for attribute ''{0}'' on XML tag ''{1}''. Got {2}.", "lon", "home", v));
}
v = getAttribute(xmlNode, "zoom");
if (v == null)
throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "zoom", "home"));
int zoom;
try {
zoom = Integer.parseInt(v);
} catch(NumberFormatException e) {
throw new XmlParsingException(tr("Illegal value for attribute ''{0}'' on XML tag ''{1}''. Got {2}.", "zoom", "home", v));
}
userInfo.setHome(new LatLon(lat,lon));
userInfo.setHomeZoom(zoom);
}
// -- language list
NodeList xmlNodeList = (NodeList)xpath.compile("/osm/user[1]/languages[1]/lang/text()").evaluate(document, XPathConstants.NODESET);
if (xmlNodeList != null) {
List<String> languages = new LinkedList<>();
for (int i=0; i < xmlNodeList.getLength(); i++) {
languages.add(xmlNodeList.item(i).getNodeValue());
}
userInfo.setLanguages(languages);
}
// -- messages
xmlNode = (Node)xpath.compile("/osm/user[1]/messages/received").evaluate(document, XPathConstants.NODE);
if (xmlNode != null) {
v = getAttribute(xmlNode, "unread");
if (v == null)
throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "unread", "received"));
try {
userInfo.setUnreadMessages(Integer.parseInt(v));
} catch(NumberFormatException e) {
throw new XmlParsingException(tr("Illegal value for attribute ''{0}'' on XML tag ''{1}''. Got {2}.", "unread", "received", v), e);
}
}
return userInfo;
} catch(XPathException e) {
throw new XmlParsingException(e);
}
}
/**
* Constructs a new {@code OsmServerUserInfoReader}.
*/
public OsmServerUserInfoReader() {
setDoAuthenticate(true);
}
@Override
public DataSet parseOsm(ProgressMonitor progressMonitor) throws OsmTransferException {
// not implemented
return null;
}
/**
* Fetches user info, without explicit reason.
* @param monitor The progress monitor
* @return The user info
* @throws OsmTransferException if something goes wrong
*/
public UserInfo fetchUserInfo(ProgressMonitor monitor) throws OsmTransferException {
return fetchUserInfo(monitor, null);
}
/**
* Fetches user info, with an explicit reason.
* @param monitor The progress monitor
* @param reason The reason to show on console. Can be {@code null} if no reason is given
* @return The user info
* @throws OsmTransferException if something goes wrong
* @since 6695
*/
public UserInfo fetchUserInfo(ProgressMonitor monitor, String reason) throws OsmTransferException {
try {
monitor.beginTask("");
monitor.indeterminateSubTask(tr("Reading user info ..."));
try (InputStream in = getInputStream("user/details", monitor.createSubTaskMonitor(1, true), reason)) {
return buildFromXML(
DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(in)
);
}
} catch(OsmTransferException e) {
throw e;
} catch(Exception e) {
throw new OsmTransferException(e);
} finally {
monitor.finishTask();
}
}
}