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package de.lmu.ifi.dbs.elki.application.jsmap;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2014
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.result.HierarchicalResult;
import de.lmu.ifi.dbs.elki.result.Result;
import de.lmu.ifi.dbs.elki.result.ResultHandler;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.OptionID;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.CommonConstraints;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.LessEqualConstraint;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.IntParameter;
/**
* Handle results by serving them via a web server to mapping applications.
*
* @author Erich Schubert
*
* @apiviz.composedOf JSONWebServer
*/
public class JSONResultHandler implements ResultHandler {
/**
* The actual web server
*/
private JSONWebServer server;
/**
* Listen port
*/
private int port;
/**
* Constructor.
*
* @param port Port to listen on
*/
public JSONResultHandler(int port) {
super();
this.port = port;
}
@Override
public void processNewResult(HierarchicalResult baseResult, Result newResult) {
if(server == null) {
server = new JSONWebServer(port, baseResult);
}
// TODO: stop somehow. UI with stop button?
}
/**
* Parameterization class
*
* @author Erich Schubert
*
* @apiviz.exclude
*/
public static class Parameterizer extends AbstractParameterizer {
/**
* Port to use for listening
*/
public static final OptionID PORT_ID = new OptionID("json.port", "Port for the JSON web server to listen on.");
/**
* Our port
*/
int port = 8080;
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
IntParameter portP = new IntParameter(PORT_ID, port);
portP.addConstraint(CommonConstraints.GREATER_EQUAL_ONE_INT);
portP.addConstraint(new LessEqualConstraint(65535));
if(config.grab(portP)) {
this.port = portP.getValue();
}
}
@Override
protected JSONResultHandler makeInstance() {
return new JSONResultHandler(port);
}
}
}
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