/**
* Gets maps that are not installed, but may be downloaded.
*
* @return set of all maps available for download
*/
public static Set<AutoRefMap> getRemoteMaps() {
// check the cache first, we might want to just use the cached value
long time = ManagementFactory.getRuntimeMXBean().getUptime() - _cachedRemoteMapsTime;
if (_cachedRemoteMaps != null && time < AutoRefMap.REMOTE_MAP_CACHE_LENGTH)
return _cachedRemoteMaps;
Set<AutoRefMap> maps = Sets.newHashSet();
String repo = AutoRefMatch.getMapRepo();
try {
Map<String, String> params = Maps.newHashMap();
params.put("prefix", "maps/");
for (; ; ) {
String url = String.format("%s?%s", repo, QueryUtil.prepareParams(params));
Element listing = new SAXBuilder().build(new URL(url)).getRootElement();
assert "ListBucketResult".equals(listing.getName()) : "Unexpected response";
Namespace ns = listing.getNamespace();
String lastkey = null;
for (Element entry : listing.getChildren("Contents", ns)) {
lastkey = entry.getChildTextTrim("Key", ns);
if (!lastkey.endsWith(".zip")) continue;
String[] keyparts = lastkey.split("/");
String mapfile = keyparts[keyparts.length - 1];
String mapslug = mapfile.substring(0, mapfile.length() - 4);
String slugparts[] = mapslug.split("-v");
if (slugparts.length < 2) {
AutoReferee.log("Invalid map filename: " + mapfile, Level.WARNING);
AutoReferee.log("Map files should be of the form \"MapName-vX.X.zip\"", Level.WARNING);
} else {
String etag = entry.getChildTextTrim("ETag", ns);
maps.add(
new AutoRefMap(
slugparts[0], slugparts[1], lastkey, etag.substring(1, etag.length() - 1)));
}
}
// stop looping if the result says that it hasn't been truncated (no more results)
if (!Boolean.parseBoolean(listing.getChildText("IsTruncated", ns))) break;
// use the last key as a marker for the next pass
if (lastkey != null) params.put("marker", lastkey);
}
} catch (IOException e) {
e.printStackTrace();
} catch (JDOMException e) {
e.printStackTrace();
}
_cachedRemoteMapsTime = ManagementFactory.getRuntimeMXBean().getUptime();
return _cachedRemoteMaps = maps;
}
private void download() throws IOException {
// mark the file as downloading
this.zip = AutoRefMap.DOWNLOADING;
String bparts[] = filename.split("/"), basename = bparts[bparts.length - 1];
File zip = new File(AutoRefMap.getMapLibrary(), basename);
FileUtils.copyURLToFile(new URL(AutoRefMatch.getMapRepo() + filename), zip);
// if the md5s match, return the zip
String md5comp = DigestUtils.md5Hex(new FileInputStream(zip));
if (md5comp.equalsIgnoreCase(md5sum)) {
this.zip = zip;
return;
}
// if the md5sum did not match, quit here
zip.delete();
throw new IOException("MD5 Mismatch: " + md5comp + " != " + md5sum);
}