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An Android library to display OpenStreetMap views.
package org.osmdroid.contributor;
/**
* Copyright by Christof Dallermassl
* This program is free software and licensed under GPL.
*
* Original JAVA-Code ported for Android compatibility by Nicolas 'plusminus' Gramlich.
*/
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import org.osmdroid.contributor.util.RecordedGeoPoint;
import org.osmdroid.contributor.util.RecordedRouteGPXFormatter;
import org.osmdroid.contributor.util.Util;
import org.osmdroid.contributor.util.constants.OpenStreetMapContributorConstants;
/**
* Small java class that allows to upload gpx files to www.openstreetmap.org via its api call.
*
* @author cdaller
* @author Nicolas Gramlich
*/
public class OSMUploader implements OpenStreetMapContributorConstants {
// ===========================================================
// Constants
// ===========================================================
public static final String API_VERSION = "0.5";
private static final int BUFFER_SIZE = 65535;
private static final String BASE64_ENC = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
private static final String BOUNDARY = "----------------------------d10f7aa230e8";
private static final String LINE_END = "\r\n";
private static final String DEFAULT_DESCRIPTION = "AndNav - automatically created route.";
private static final String DEFAULT_TAGS = "AndNav";
public static final SimpleDateFormat pseudoFileNameFormat = new SimpleDateFormat(
"yyyyMMdd'_'HHmmss'_'SSS");
private static final SimpleDateFormat autoTagFormat = new SimpleDateFormat("MMMM yyyy");
// ===========================================================
// Fields
// ===========================================================
// ===========================================================
// Constructors
// ===========================================================
/**
* This is a utility class with only static members.
*/
private OSMUploader() {
}
// ===========================================================
// Methods
// ===========================================================
/**
* Uses OSMConstants.OSM_USERNAME and OSMConstants.OSM_PASSWORD as username/password.
* Description will be DEFAULT_DESCRIPTION, tags will be automatically generated
* (i.e. "October 2008") NOTE: This method is not blocking!
*
* @param gpxInputStream
* the InputStream containing the gpx-data.
* @throws IOException
*/
public static void uploadAsync(final ArrayList recordedGeoPoints) {
uploadAsync(DEFAULT_DESCRIPTION, DEFAULT_TAGS, true, recordedGeoPoints);
}
/**
* Uses OSMConstants.OSM_USERNAME and OSMConstants.OSM_PASSWORD as username/password. The
* 'filename' will be the current timestamp.gpx (i.e. "20081231_234815_912.gpx")
* NOTE: This method is not blocking!
*
* @param description
* not null
* @param tags
* not null
* @param addDateTags
* adds Date Tags to the existing Tags (i.e. "October 2008")
* @param gpxInputStreaman
* the InputStream containing the gpx-data.
* @throws IOException
*/
public static void uploadAsync(final String description, final String tags,
final boolean addDateTags, final ArrayList recordedGeoPoints) {
uploadAsync(OSM_USERNAME, OSM_PASSWORD, description, tags, addDateTags, recordedGeoPoints,
pseudoFileNameFormat.format(new GregorianCalendar().getTime()) + "_" + OSM_USERNAME
+ ".gpx");
}
/**
* NOTE: This method is not blocking! (Code runs in thread)
*
* @param username
* not null and not empty. Valid OSM-username
* @param password
* not null and not empty. Valid password to the
* OSM-username.
* @param description
* not null
* @param tags
* if null addDateTags is treated as true
* @param addDateTags
* adds Date Tags to the existing Tags (i.e. "October 2008")
* @param gpxInputStream
* the InputStream containing the gpx-data.
* @param pseudoFileName
* ending with ".gpx"
* @throws IOException
*/
public static void uploadAsync(final String username, final String password,
final String description, final String tags, final boolean addDateTags,
final ArrayList recordedGeoPoints, final String pseudoFileName) {
if (username == null || username.length() == 0)
return;
if (password == null || password.length() == 0)
return;
if (description == null || description.length() == 0)
return;
if (tags == null || tags.length() == 0)
return;
if (pseudoFileName == null || pseudoFileName.endsWith(".gpx"))
return;
new Thread(new Runnable() {
@Override
public void run() {
if (!Util.isSufficienDataForUpload(recordedGeoPoints))
return;
final InputStream gpxInputStream = new ByteArrayInputStream(
RecordedRouteGPXFormatter.create(recordedGeoPoints).getBytes());
String tagsToUse = tags;
if (addDateTags || tagsToUse == null)
if (tagsToUse == null)
tagsToUse = autoTagFormat.format(new GregorianCalendar().getTime());
else
tagsToUse = tagsToUse + " "
+ autoTagFormat.format(new GregorianCalendar().getTime());
// logger.debug("Uploading " + pseudoFileName + " to openstreetmap.org");
try {
// String urlGpxName = URLEncoder.encode(gpxName.replaceAll("\\.;&?,/","_"),
// "UTF-8");
final String urlDesc = (description == null) ? DEFAULT_DESCRIPTION
: description.replaceAll("\\.;&?,/", "_");
final String urlTags = (tagsToUse == null) ? DEFAULT_TAGS
: tagsToUse.replaceAll("\\\\.;&?,/", "_");
final URL url = new URL("http://www.openstreetmap.org/api/" + API_VERSION
+ "/gpx/create");
// logger.debug("Destination Url: " + url);
final HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setConnectTimeout(15000);
con.setRequestMethod("POST");
con.setDoOutput(true);
con.addRequestProperty("Authorization", "Basic "
+ encodeBase64(username + ":" + password));
con.addRequestProperty("Content-Type", "multipart/form-data; boundary="
+ BOUNDARY);
con.addRequestProperty("Connection", "close"); // counterpart of keep-alive
con.addRequestProperty("Expect", "");
con.connect();
final DataOutputStream out = new DataOutputStream(new BufferedOutputStream(
con.getOutputStream()));
// DataOutputStream out = new DataOutputStream(System.out);
writeContentDispositionFile(out, "file", gpxInputStream, pseudoFileName);
writeContentDisposition(out, "description", urlDesc);
writeContentDisposition(out, "tags", urlTags);
writeContentDisposition(out, "public", "1");
out.writeBytes("--" + BOUNDARY + "--" + LINE_END);
out.flush();
final int retCode = con.getResponseCode();
String retMsg = con.getResponseMessage();
// logger.debug("\nreturn code: "+retCode + " " + retMsg);
if (retCode != 200) {
// Look for a detailed error message from the server
if (con.getHeaderField("Error") != null)
retMsg += "\n" + con.getHeaderField("Error");
con.disconnect();
throw new RuntimeException(retCode + " " + retMsg);
}
out.close();
con.disconnect();
} catch (final Exception e) {
// logger.error("OSMUpload Error", e);
}
}
}, "OSMUpload-Thread").start();
}
public static void upload(final String username, final String password,
final String description, final String tags, final boolean addDateTags,
final ArrayList recordedGeoPoints, final String pseudoFileName)
throws IOException {
uploadAsync(username, password, description, tags, addDateTags, recordedGeoPoints,
pseudoFileName);
}
/**
* @param out
* @param string
* @param gpxFile
* @throws IOException
*/
private static void writeContentDispositionFile(final DataOutputStream out, final String name,
final InputStream gpxInputStream, final String pseudoFileName) throws IOException {
out.writeBytes("--" + BOUNDARY + LINE_END);
out.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"; filename=\""
+ pseudoFileName + "\"" + LINE_END);
out.writeBytes("Content-Type: application/octet-stream" + LINE_END);
out.writeBytes(LINE_END);
final byte[] buffer = new byte[BUFFER_SIZE];
// int fileLen = (int)gpxFile.length();
int read;
int sumread = 0;
final InputStream in = new BufferedInputStream(gpxInputStream);
// logger.debug("Transferring data to server");
while ((read = in.read(buffer)) >= 0) {
out.write(buffer, 0, read);
out.flush();
sumread += read;
}
in.close();
out.writeBytes(LINE_END);
}
/**
* @param string
* @param urlDesc
* @throws IOException
*/
private static void writeContentDisposition(final DataOutputStream out, final String name,
final String value) throws IOException {
out.writeBytes("--" + BOUNDARY + LINE_END);
out.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"" + LINE_END);
out.writeBytes(LINE_END);
out.writeBytes(value + LINE_END);
}
private static String encodeBase64(final String s) {
final StringBuilder out = new StringBuilder();
for (int i = 0; i < (s.length() + 2) / 3; ++i) {
final int l = Math.min(3, s.length() - i * 3);
final String buf = s.substring(i * 3, i * 3 + l);
out.append(BASE64_ENC.charAt(buf.charAt(0) >> 2));
out.append(BASE64_ENC.charAt((buf.charAt(0) & 0x03) << 4
| (l == 1 ? 0 : (buf.charAt(1) & 0xf0) >> 4)));
out.append(l > 1 ? BASE64_ENC.charAt((buf.charAt(1) & 0x0f) << 2
| (l == 2 ? 0 : (buf.charAt(2) & 0xc0) >> 6)) : '=');
out.append(l > 2 ? BASE64_ENC.charAt(buf.charAt(2) & 0x3f) : '=');
}
return out.toString();
}
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