at.uni_salzburg.cs.ckgroup.cscpp.engine.json.VehicleDetailsQuery.java Source code

Introduction

Here is the source code for at.uni_salzburg.cs.ckgroup.cscpp.engine.json.VehicleDetailsQuery.java

Source

/*
 * @(#) VehicleDetailsQuery.java
 *
 * This code is part of the CPCC project.
 * Copyright (c) 2012  Clemens Krainer
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package at.uni_salzburg.cs.ckgroup.cscpp.engine.json;

import java.io.IOException;
import java.util.Map;
import java.util.Map.Entry;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

import at.uni_salzburg.cs.ckgroup.cpcc.mapper.api.ITask;
import at.uni_salzburg.cs.ckgroup.cscpp.engine.vehicle.IVirtualVehicle;
import at.uni_salzburg.cs.ckgroup.cscpp.utils.IQuery;
import at.uni_salzburg.cs.ckgroup.cscpp.utils.IServletConfig;

public class VehicleDetailsQuery implements IQuery {

    private static final String PROP_VEHICLE_LOCAL_NAME = "name";
    private static final String PROP_VEHICLE_STATE = "state";
    private static final String PROP_VEHICLE_TASKS = "tasks";

    private Map<String, IVirtualVehicle> vehicleMap;

    public void setVehicleMap(Map<String, IVirtualVehicle> vehicleMap) {
        this.vehicleMap = vehicleMap;
    }

    @SuppressWarnings("unchecked")
    @Override
    public String execute(IServletConfig config, String[] parameters) throws IOException {

        String vehicleId = parameters[3];

        if (vehicleId == null || "".equals(vehicleId)) {
            return JSONValue.toJSONString("Invalid query!");
        }

        IVirtualVehicle vehicle = vehicleMap.get(vehicleId);

        if (vehicle == null) {
            return JSONValue.toJSONString("Vehicle not found (anymore)!");
        }

        JSONObject props = new JSONObject();
        for (Entry<Object, Object> e : vehicle.getProperties().entrySet()) {
            props.put((String) e.getKey(), e.getValue());
        }

        props.put(PROP_VEHICLE_LOCAL_NAME, vehicle.getWorkDir().getName());

        if (vehicle.isProgramCorrupted()) {
            props.put(PROP_VEHICLE_STATE, "corrupt");
        } else if (vehicle.isCompleted()) {
            props.put(PROP_VEHICLE_STATE, "completed");
        } else if (vehicle.isActive()) {
            props.put(PROP_VEHICLE_STATE, "active");
        } else {
            props.put(PROP_VEHICLE_STATE, "suspended");
        }

        JSONArray tasks = new JSONArray();
        for (ITask cmd : vehicle.getTaskList()) {
            tasks.add(cmd);
        }

        props.put(PROP_VEHICLE_TASKS, tasks);

        return JSONValue.toJSONString(props);
    }

}