edu.cens.loci.classes.LociVisit.java Source code

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Here is the source code for edu.cens.loci.classes.LociVisit.java

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/*******************************************************************************
 * Copyright 2012 The Regents of the University of California
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package edu.cens.loci.classes;

import java.util.ArrayList;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import edu.cens.loci.LociConfig;
import edu.cens.loci.provider.LociDbUtils;
import edu.cens.loci.utils.MyDateUtils;
import edu.cens.loci.utils.MyLog;

public class LociVisit {

    private static final String TAG = "LociVisit";

    public long visitId;
    public long placeId;
    public int type;
    public long enter;
    public long exit;
    public ArrayList<RecognitionResult> recognitions;

    public LociVisit(int type) {
        this.visitId = -1;
        this.placeId = -1;
        this.type = type;
        this.enter = -1;
        this.exit = -1;
        this.recognitions = new ArrayList<RecognitionResult>();
    }

    public LociVisit(long visitId, long placeId, int type, long enter, long exit) {
        this.visitId = visitId;
        this.placeId = placeId;
        this.type = type;
        this.enter = enter;
        this.exit = exit;
        this.recognitions = new ArrayList<RecognitionResult>();
    }

    public LociVisit(long visitId, long placeId, int type, long enter, long exit,
            ArrayList<RecognitionResult> recognitions) {
        this.visitId = visitId;
        this.placeId = placeId;
        this.type = type;
        this.enter = enter;
        this.exit = exit;
        this.recognitions = recognitions;
    }

    public LociVisit(long visitId, long placeId, int type, long enter, long exit, String recognitions) {
        this.visitId = visitId;
        this.placeId = placeId;
        this.type = type;
        this.enter = enter;
        this.exit = exit;
        try {
            JSONArray jArr = new JSONArray(recognitions);
            this.recognitions = new ArrayList<RecognitionResult>();
            for (int i = 0; i < jArr.length(); i++) {
                JSONObject jObj = jArr.getJSONObject(i);
                RecognitionResult result = new RecognitionResult(jObj.getLong("time"), jObj.getInt("place_id"),
                        jObj.getInt("fingerprint_id"), jObj.getDouble("score"));
                this.recognitions.add(result);
            }
        } catch (JSONException e) {
            MyLog.e(LociConfig.D.JSON, TAG, "LociVisit() : json error.");
            e.printStackTrace();
        }
    }

    public String toString() {
        return String.format("LociVisit [visitid=%d placeid=%d type=%d enter=%s exit=%s]\n", visitId, placeId, type,
                ((enter == -1) ? "-1" : MyDateUtils.getTimeFormatMedium(enter)),
                ((exit == -1) ? "-1" : MyDateUtils.getTimeFormatMedium(exit)));
    }

    public void clear() {
        this.visitId = -1;
        this.placeId = -1;
        this.enter = -1;
        this.exit = -1;
        this.recognitions.clear();
    }

    public void updateRecognitionResult(long time, long placeId, long fingerprintId, double score) {
        //this.placeId = placeId;
        recognitions.add(new RecognitionResult(time, placeId, fingerprintId, score));
    }

    public long getDuration() {
        if (enter == -1 || exit == -1)
            return -1;
        return exit - enter;
    }

    public String getRecognitionResults() {

        JSONArray jArr = new JSONArray();

        for (RecognitionResult result : this.recognitions) {
            try {
                jArr.put(result.toJsonObject());
            } catch (JSONException e) {
                MyLog.e(LociConfig.D.JSON, TAG, "getRecognitionResults() : Json error.");
                e.printStackTrace();
            }
        }

        return jArr.toString();
    }

    public static class RecognitionResult {

        public static final String KEY_TIME = "time";
        public static final String KEY_PLACE_ID = "place_id";
        public static final String KEY_FINGERPRINT_ID = "fingerprint_id";
        public static final String KEY_SCORE = "score";

        public long time; // time of recognition
        public long placeId = -1; // matching wifi-fingerprint's placeid
        public long fingerprintId; // matching wifi-fingerprint's fingerprintId
        public double score; // matching score
        public String placeName;

        public RecognitionResult(long time, long placeId, long fingerprintId, double score) {
            this.time = time;
            this.placeId = placeId;
            this.fingerprintId = fingerprintId;
            this.score = score;
        }

        public RecognitionResult(JSONObject jObj) {
            try {
                this.time = jObj.getLong(KEY_TIME);
                this.placeId = jObj.getLong(KEY_PLACE_ID);
                this.fingerprintId = jObj.getLong(KEY_FINGERPRINT_ID);
                this.score = jObj.getDouble(KEY_SCORE);
            } catch (JSONException e) {
                MyLog.e(LociConfig.D.JSON, TAG, "RecognitionResult");
                e.printStackTrace();
            }
        }

        public RecognitionResult setPlaceName(LociDbUtils dbUtils) {
            if (placeId > 0) {
                this.placeName = dbUtils.getPlace(this.placeId).name;
            } else {
                this.placeName = "Unknown";
            }
            return this;
        }

        public void setPlaceName(String name) {
            this.placeName = name;
        }

        public void clear() {
            this.time = -1;
            this.placeId = -1;
            this.fingerprintId = -1;
            this.score = -1;
        }

        public JSONObject toJsonObject() throws JSONException {
            JSONObject jObj = new JSONObject();
            jObj.put(KEY_TIME, time);
            jObj.put(KEY_PLACE_ID, placeId);
            jObj.put(KEY_FINGERPRINT_ID, fingerprintId);
            jObj.put(KEY_SCORE, score);
            return jObj;
        }

        public String toString() {
            return String.format("RecognitionResult [time=%s, placeId=%d, fingerprintId=%s, score=%f]",
                    MyDateUtils.getTimeFormatMedium(this.time), this.placeId,
                    MyDateUtils.getTimeFormatMedium(this.fingerprintId), this.score);
        }
    }
}