public static Version getLatestAvailableVersion(RepositoryConnection cn)
throws RepositoryException {
List<Version> allVersions = new ArrayList<Version>();
RepositoryResult<Statement> res =
cn.getStatements(MIVVI_DESKTOP_CLIENT, RdfUtil.Doap.release, null, false);
while (res.hasNext()) {
Statement stmt = res.next();
Resource v = RdfUtil.asResource(stmt.getObject());
if (v != null) {
String rev = RdfUtil.getStringProperty(cn, v, RdfUtil.Doap.revision);
if (rev != null) {
try {
allVersions.add(Version.parse(rev));
} catch (ParseException pe) {
// Ignore this version
}
}
}
}
Collections.sort(allVersions);
if (allVersions.size() > 0) {
return allVersions.get(allVersions.size() - 1);
} else {
return null;
}
}
@Override
public Version unmarshal(String string) throws Exception {
if (string == null) {
return null;
} else {
return Version.parse(string);
}
}
private void load(Class<? extends Plugin> pluginClass, Properties properties) {
// A plugin can be instantiated only once
if (PLUGINS.containsKey(pluginClass)) {
Application.LOGGER.error("Plugin for " + pluginClass + " is already loaded");
return;
}
Plugin plugin;
try {
plugin = pluginClass.newInstance();
} catch (InstantiationException e) {
Application.LOGGER.error("Error while instantiating plugin from " + pluginClass, e);
return;
} catch (IllegalAccessException e) {
Application.LOGGER.error(
"Plugin class default constructor not accessible for " + pluginClass, e);
return;
}
// register the plugin
PLUGINS.put(pluginClass, plugin);
// Load the properties if available
if (properties != null) {
plugin.name = properties.getProperty("plugin.name");
plugin.version = Version.parse(properties.getProperty("plugin.version"));
plugin.description = properties.getProperty("plugin.description");
} else {
// in case the application is loading the plugin directly
plugin.name = pluginClass.getSimpleName();
plugin.version = null;
plugin.description = null;
}
// Let the plugin initialize
Application.LOGGER.trace(
"Initializing Plugin - " + plugin.name + " - " + pluginClass.getCanonicalName());
plugin.onInit(app);
}