private void handleAdmin(SolrQueryRequest req, SolrQueryResponse rsp, SolrParams params) {
String action = params.get("action");
if ("stop".equalsIgnoreCase(action)) {
String id = params.get("id");
DaemonStream d = daemons.get(id);
if (d != null) {
d.close();
rsp.add("result-set", new DaemonResponseStream("Deamon:" + id + " stopped on " + coreName));
} else {
rsp.add(
"result-set", new DaemonResponseStream("Deamon:" + id + " not found on " + coreName));
}
} else if ("start".equalsIgnoreCase(action)) {
String id = params.get("id");
DaemonStream d = daemons.get(id);
d.open();
rsp.add("result-set", new DaemonResponseStream("Deamon:" + id + " started on " + coreName));
} else if ("list".equalsIgnoreCase(action)) {
Collection<DaemonStream> vals = daemons.values();
rsp.add("result-set", new DaemonCollectionStream(vals));
} else if ("kill".equalsIgnoreCase(action)) {
String id = params.get("id");
DaemonStream d = daemons.remove(id);
if (d != null) {
d.close();
}
rsp.add("result-set", new DaemonResponseStream("Deamon:" + id + " killed on " + coreName));
}
}
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
SolrParams params = req.getParams();
params = adjustParams(params);
req.setParams(params);
if (params.get("action") != null) {
handleAdmin(req, rsp, params);
return;
}
TupleStream tupleStream;
try {
tupleStream = this.streamFactory.constructStream(params.get("expr"));
} catch (Exception e) {
// Catch exceptions that occur while the stream is being created. This will include streaming
// expression parse rules.
SolrException.log(logger, e);
rsp.add("result-set", new DummyErrorStream(e));
return;
}
int worker = params.getInt("workerID", 0);
int numWorkers = params.getInt("numWorkers", 1);
StreamContext context = new StreamContext();
context.workerID = worker;
context.numWorkers = numWorkers;
context.setSolrClientCache(clientCache);
context.setModelCache(modelCache);
context.put("core", this.coreName);
context.put("solr-core", req.getCore());
tupleStream.setStreamContext(context);
// if asking for explanation then go get it
if (params.getBool("explain", false)) {
rsp.add("explanation", tupleStream.toExplanation(this.streamFactory));
}
if (tupleStream instanceof DaemonStream) {
DaemonStream daemonStream = (DaemonStream) tupleStream;
if (daemons.containsKey(daemonStream.getId())) {
daemons.remove(daemonStream.getId()).close();
}
daemonStream.setDaemons(daemons);
daemonStream.open(); // This will start the deamonStream
daemons.put(daemonStream.getId(), daemonStream);
rsp.add(
"result-set",
new DaemonResponseStream("Deamon:" + daemonStream.getId() + " started on " + coreName));
} else {
rsp.add("result-set", new TimerStream(new ExceptionStream(tupleStream)));
}
}