private void rest() {
try {
Thread.sleep(100); // do nothing for 1000 miliseconds (1 second)
} catch (InterruptedException e) {
e.printStackTrace();
}
}
protected void runEcho() {
Scanner socketScanner = null;
String newLine;
try {
socketScanner = new Scanner(socket.getInputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
while (true) {
try {
Thread.sleep(CLERK_DELAY_MS);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (socket.isClosed()) return;
if (socketScanner.hasNextLine()) {
newLine = socketScanner.nextLine() + END_OF_LINE;
System.out.println("echoing: " + newLine);
try {
socket.getOutputStream().write(newLine.getBytes(encoding));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
// ----This function getting nodes from mongo's collection tree_nodes----
// ---------the function insert nodes to neo4j and deletes it from mongo-----------
// ----------------------------------------------------------------------------------------
public void update_tree() {
while (true) {
DBObject obj = new BasicDBObject();
obj.put("in_process", 0); // when other thread processing, 'in_process'=1
DBCursor cursor = this.colltree.find(obj); // find only documents not in use of other thread
// log4j.info(cursor.count() + " documents to process in collection tree nodes");
if (!cursor.hasNext()) { // no documents to process
try {
log4j.info("there is no nodes to process at the moment, going to sleep for 10 seconds");
Thread.currentThread();
Thread.sleep(1000 * 10);
log4j.info("update_tree woke up, continues");
} catch (InterruptedException e) {
log4j.error("InterruptedException caught, at update_all_tweets");
e.printStackTrace();
log4j.error(e);
}
} else // there are documents to process
{
try {
while (cursor.hasNext()) {
DBObject tr = cursor.next();
try {
String parent = tr.get("parent").toString();
String[] sons = tr.get("son").toString().split(","); // make array of sons
neo4j.addNode(
parent, sons, this.log4j); // create nodes and relationships if not exists
this.colltree.remove(tr); // remove document from collection
} catch (ConcurrentModificationException e) {
// log4j.error(e);
log4j.warn(e);
}
}
} catch (MongoException e) {
log4j.error(e);
}
}
}
}
