de.ncoder.sensorsystem.android.logging.JSONUtils.java Source code

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Here is the source code for de.ncoder.sensorsystem.android.logging.JSONUtils.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Niko Fink
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package de.ncoder.sensorsystem.android.logging;

import android.location.Location;
import android.os.Build;
import android.os.Bundle;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;

public class JSONUtils {
    public static String toJSONString(Object o) {
        return wrap(o).toString();
    }

    public static Object wrap(Object o) {
        if (o == null) {
            return JSONObject.NULL;
        } else if (o instanceof JSONArray || o instanceof JSONObject) {
            return o;
        } else if (o.equals(JSONObject.NULL)) {
            return o;
        } else if (o instanceof Boolean || o instanceof Byte || o instanceof Character || o instanceof Double
                || o instanceof Float || o instanceof Integer || o instanceof Long || o instanceof Short) {
            return o;
        } else if (o instanceof CharSequence) {
            return JSONObject.quote(o.toString());
        } else if (o instanceof Collection) {
            return new JSONArray((Collection) o);
        } else if (o.getClass().isArray()) {
            final int length = Array.getLength(o);
            List<Object> values = new ArrayList<>(length);
            for (int i = 0; i < length; ++i) {
                values.add(wrap(Array.get(o, i)));
            }
            return new JSONArray(values);
        } else if (o instanceof Map) {
            return new JSONObject((Map) o);
        } else if (o instanceof Location) {
            return wrapLocation((Location) o);
        } else if (o instanceof Bundle) {
            return wrapBundle((Bundle) o);
        }
        return o.toString();
    }

    private static Object wrapLocation(Location loc) {
        try {
            JSONObject json = new JSONObject();
            json.put("provider", loc.getProvider());
            json.put("latitude", loc.getLatitude());
            json.put("longitude", loc.getLongitude());
            if (loc.hasAccuracy())
                json.put("accuracy", loc.getAccuracy());
            json.put("time", loc.getTime());
            if (loc.hasAltitude())
                json.put("alt", loc.getAltitude());
            if (loc.hasSpeed())
                json.put("vel", loc.getSpeed());
            if (loc.hasBearing())
                json.put("bear", loc.getBearing());
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2)
                if (loc.isFromMockProvider())
                    json.put("mock", true);
            if (loc.getExtras() != null) {
                json.put("extra", wrap(loc.getExtras()));
            }
            return json;
        } catch (JSONException e) {
            return loc.toString() + " threw " + e.toString();
        }
    }

    private static Object wrapBundle(Bundle b) {
        try {
            JSONObject json = new JSONObject();
            for (String key : b.keySet()) {
                json.put(key, wrap(b.get(key)));
            }
            return json;
        } catch (JSONException e) {
            return b.toString() + " threw " + e.toString();
        }
    }
}