com.mission_base.arviewer_android.viewer.ArvosAugment.java Source code

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Here is the source code for com.mission_base.arviewer_android.viewer.ArvosAugment.java

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/*
 Copyright (C) 2013, Peter Graf
    
   This file is part of Arvos - AR Viewer Open Source for Android.
   Arvos is free software.
    
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/>.
    
   For more information on the AR Viewer Open Source or Peter Graf,
   please see: http://www.mission-base.com/.
 */

package com.mission_base.arviewer_android.viewer;

import com.mission_base.arviewer_android.*;
import com.mission_base.arviewer_android.viewer.opengl.*;
import java.util.*;
import org.json.*;

/**
 * An augment as shown in the augment viewer.
 * <p>
 * Contains a list of pois.
 * 
 * @author peter
 */
public class ArvosAugment {
    public String mName;
    public String mUrl;
    public String mAuthor;
    public String mDescription;
    public Float mLongitude;
    public Float mLatitude;
    public String mDeveloperKey;

    public LinkedList<ArvosPoi> mPois;

    public ArvosAugment() {
        mPois = new LinkedList<ArvosPoi>();
    }

    /**
     * Parses the JSON format augment list downloaded from the web.
     * 
     * @param input
     *            The input in JSON format.
     * @param result
     *            The list of augments to parse to.
     * @return "OK" or "ER" followed by the error message.
     */
    public static String parse(String input, List<ArvosAugment> result) {
        try {
            JSONObject jsonAugmentsList = new JSONObject(input);
            if (jsonAugmentsList.has("redirect")) {
                String redirectUrl = jsonAugmentsList.getString("redirect");
                if (redirectUrl != null) {
                    redirectUrl = redirectUrl.trim();
                    if (redirectUrl.length() > 0) {
                        return "RD" + redirectUrl;
                    }
                }
            }

            if (jsonAugmentsList.has("sessionId")) {
                String sessionId = jsonAugmentsList.getString("sessionId");
                if (sessionId != null) {
                    sessionId = sessionId.trim();
                    if (sessionId.length() > 0) {
                        Arvos.getInstance().mSessionId = sessionId;
                    }
                }
            }

            JSONArray jsonAugments = new JSONArray(jsonAugmentsList.getString("augments"));

            if (jsonAugments == null || jsonAugments.length() == 0) {
                return "ERNo augments found at your location. Retry ...";
            }

            for (int i = 0; i < jsonAugments.length(); i++) {
                JSONObject jsonAugment = jsonAugments.getJSONObject(i);
                if (jsonAugment != null) {
                    ArvosAugment augment = new ArvosAugment();
                    result.add(augment);

                    augment.mName = jsonAugment.getString("name");
                    augment.mUrl = jsonAugment.getString("url");

                    augment.mAuthor = jsonAugment.has("author") ? jsonAugment.getString("author") : "";
                    augment.mLatitude = (float) (jsonAugment.has("lat") ? jsonAugment.getDouble("lat") : 0f);
                    augment.mLongitude = (float) (jsonAugment.has("lon") ? jsonAugment.getDouble("lon") : 0f);
                    augment.mDescription = jsonAugment.has("description") ? jsonAugment.getString("description")
                            : "";
                    augment.mDeveloperKey = jsonAugment.has("developerKey") ? jsonAugment.getString("developerKey")
                            : "";
                }
            }
        } catch (Exception e) {
            return "ERJSON parse error. " + e.getLocalizedMessage();
        }

        return "OK";
    }

    /**
     * Fills the properties of one augment by parsing a description in JSON
     * format downloaded from the web.
     * 
     * @param input
     *            The augment description in JSON format.
     * @return "OK" or "ER" followed by the error message.
     */
    public String parse(String input) {
        try {
            JSONObject jsonAugment = new JSONObject(input);
            mName = jsonAugment.getString("name");
            mAuthor = jsonAugment.has("author") ? jsonAugment.getString("author") : "";
            mDescription = jsonAugment.has("description") ? jsonAugment.getString("description") : "";

            JSONArray jsonPois = new JSONArray(jsonAugment.getString("pois"));

            if (jsonPois == null || jsonPois.length() == 0) {
                return "ERNo pois found in augment " + mName;
            }

            for (int i = 0; i < jsonPois.length(); i++) {
                JSONObject newPoi = jsonPois.getJSONObject(i);
                if (newPoi != null) {
                    ArvosPoi poi = new ArvosPoi(this);
                    poi.parse(newPoi);
                    mPois.add(poi);
                }
            }
        } catch (Exception e) {
            return "ERJSON parse error. " + e.getLocalizedMessage();
        }

        return "OK";
    }

    /**
     * Returns the list of all objects to be drawn for the augment in the opengl view.
     * 
     * @param time
     *            The current time.
     * @param arvosObjects
     *            The previous list of objects.
     * @return Returns the list of all objects.
     */
    public List<ArvosObject> getObjects(long time, List<ArvosObject> arvosObjects) {
        List<ArvosObject> result = new LinkedList<ArvosObject>();

        synchronized (mPois) {
            for (ArvosPoi poi : mPois) {
                poi.getObjects(time, result, arvosObjects);
            }
        }
        return result;
    }

    /**
     * Handles a click on an object in the opengl view.
     * 
     * @param id
     *            The id of the object clicked.
     */
    public void addClick(int id) {
        synchronized (this) {
            if (!mPois.isEmpty()) {
                ArvosPoi poi = mPois.getFirst();
                ArvosPoiObject poiObject = poi.findPoiObject(id);
                if (poiObject != null) {
                    poiObject.mParent.addClick(poiObject);
                }
            }
        }
    }
}