private void readClustersXml() throws SAXException, IOException {
if (clustersUri.getScheme().equals("file")) {
File file = new File(clustersUri);
if (file.exists()) {
Document doc = builder.parse(file);
clusters = new ClustersXMLSerializer(builder).read(doc);
clusters.setTimestamp(file.lastModified());
}
}
}
private void updateMyInfo() throws TransformerException, IOException, SAXException {
Clusters.Cluster cluster = clusters.getCluster(config.get(ClusterSettings.cluster_name));
if (cluster == null) {
clusters
.getClusters()
.add(cluster = new Clusters.Cluster(config.get(ClusterSettings.cluster_name)));
}
if (cluster.contains(serverId)) {
// Do nothing
} else {
// Add myself to list
cluster
.getMembers()
.add(
new Clusters.Member(
serverId.getHost() + (serverId.getPort() == -1 ? "" : ":" + serverId.getPort())));
Document document = new ClustersXMLSerializer(builder).write(clusters);
// Save new version
if (clustersUri.getScheme().equals("file")) {
File clustersFile = new File(clustersUri);
if (clustersFile.lastModified() != clusters.getTimestamp()) {
readClustersXml(); // Re-read XML file
updateMyInfo(); // Try again
return;
}
// Save new version
transformer.transform(new DOMSource(document), new StreamResult(clustersFile));
clusters.setTimestamp(clustersFile.lastModified());
} else {
// TODO Implement HTTP version
}
}
}
