com.shootoff.session.io.JSONSessionWriter.java Source code

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Here is the source code for com.shootoff.session.io.JSONSessionWriter.java

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/*
 * ShootOFF - Software for Laser Dry Fire Training
 * Copyright (C) 2016 phrack
 * 
 * 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 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.shootoff.session.io;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Optional;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.shootoff.camera.Shot;

public class JSONSessionWriter implements EventVisitor {
    private final Logger logger = LoggerFactory.getLogger(JSONSessionWriter.class);

    private final File sessionFile;
    private final JSONArray cameras = new JSONArray();
    private JSONObject currentCamera;
    private JSONArray currentCameraEvents;

    public JSONSessionWriter(File sessionFile) {
        this.sessionFile = sessionFile;
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitCamera(String cameraName) {
        currentCamera = new JSONObject();
        currentCamera.put("name", cameraName);

        currentCameraEvents = new JSONArray();
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitCameraEnd() {
        currentCamera.put("events", currentCameraEvents);
        cameras.add(currentCamera);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitShot(long timestamp, Shot shot, boolean isMalfunction, boolean isReload,
            Optional<Integer> targetIndex, Optional<Integer> hitRegionIndex, Optional<String> videoString) {

        JSONObject event = new JSONObject();
        event.put("type", "shot");
        event.put("timestamp", timestamp);
        event.put("color", shot.getColor().toString());
        event.put("x", shot.getX());
        event.put("y", shot.getY());
        event.put("shotTimestamp", shot.getTimestamp());
        event.put("markerRadius", (int) shot.getMarker().getRadiusX());
        event.put("isMalfunction", isMalfunction);
        event.put("isReload", isReload);

        if (targetIndex.isPresent()) {
            event.put("targetIndex", targetIndex.get());
        } else {
            event.put("targetIndex", -1);
        }

        if (hitRegionIndex.isPresent()) {
            event.put("hitRegionIndex", hitRegionIndex.get());
        } else {
            event.put("hitRegionIndex", -1);
        }

        if (videoString.isPresent()) {
            event.put("videos", videoString.get());
        }

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitTargetAdd(long timestamp, String targetName) {
        JSONObject event = new JSONObject();
        event.put("type", "targetAdded");
        event.put("timestamp", timestamp);
        event.put("name", targetName);

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitTargetRemove(long timestamp, int targetIndex) {
        JSONObject event = new JSONObject();
        event.put("type", "targetRemoved");
        event.put("timestamp", timestamp);
        event.put("index", targetIndex);

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitTargetResize(long timestamp, int targetIndex, double newWidth, double newHeight) {
        JSONObject event = new JSONObject();
        event.put("type", "targetResized");
        event.put("timestamp", timestamp);
        event.put("index", targetIndex);
        event.put("newWidth", newWidth);
        event.put("newHeight", newHeight);

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitTargetMove(long timestamp, int targetIndex, int newX, int newY) {
        JSONObject event = new JSONObject();
        event.put("type", "targetMoved");
        event.put("timestamp", timestamp);
        event.put("index", targetIndex);
        event.put("newX", newX);
        event.put("newY", newY);

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitExerciseFeedMessage(long timestamp, String message) {
        JSONObject event = new JSONObject();
        event.put("type", "exerciseFeedMessage");
        event.put("timestamp", timestamp);
        event.put("message", message);

        currentCameraEvents.add(event);
    }

    @SuppressWarnings("unchecked")
    @Override
    public void visitEnd() {
        JSONObject session = new JSONObject();
        session.put("cameras", cameras);

        Writer file = null;

        try {
            file = new OutputStreamWriter(new FileOutputStream(sessionFile), "UTF-8");
            file.write(session.toJSONString());
            file.flush();
        } catch (IOException e) {
            logger.error("Error writing JSON session", e);
        } finally {
            try {
                if (file != null)
                    file.close();
            } catch (IOException e) {
                logger.error("Error closing JSON session", e);
            }

        }
    }
}