apiAccess.java

package com.pfe.projet.tracker.tasks;

import android.net.Uri;
import android.os.AsyncTask;
import android.util.Log;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class ApiAccess extends AsyncTask<Void, Void, String>{
    private final String TAG = "TEST";

    private String http_method;
    private String body;
    private ApiAccessWork caller;
    private Uri uri;

    @Override
    protected void onPostExecute(String result) {
        caller.doStuffWithResult(result);
    }

    @Override
    protected String doInBackground(Void...params) {
        HttpURLConnection connection = null;
        BufferedReader reader = null;
        String result = null;
        Boolean flag = this.http_method.equalsIgnoreCase("post");
        try {
            Log.v(TAG, "\t\t***************");
            connection = (HttpURLConnection) new URL(this.uri.toString()).openConnection();
            connection.setRequestMethod(this.http_method);
            if (flag){
                connection.setDoOutput(true);
                connection.setDoInput(true);
                connection.setRequestProperty("Content-Type", "application/json");
                OutputStream oStream = connection.getOutputStream();
                oStream.write(this.body.getBytes());
                oStream.flush();
                oStream.close();
            }
            connection.connect();
            Log.v(TAG, "*+*+*"+ connection.getResponseCode()+"+*+*+*+*+*+*+*+*+*+*+*+*+*+");
            StringBuffer buffer = new StringBuffer();
            InputStream iStream = connection.getInputStream();
            if (iStream == null) return null;
            reader = new BufferedReader(new InputStreamReader(iStream));
            String line;
            while ((line = reader.readLine()) != null) buffer.append(line + "\n");
            if (buffer.length() == 0) return null;
            result = buffer.toString();
        }catch(Exception e){
            Log.v(TAG, " "+e.toString()+"\t\t++++++++++++++++++");
            try {
                if (reader != null) reader.close();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
        return result;
    }

    public ApiAccess setCaller(ApiAccessWork caller){
        this.caller = caller;
        return this;
    }

    public ApiAccess setMethod(String method){
        this.http_method = method;
        return this;
    }

    public ApiAccess setBody(String body){
        this.body = body;
        return this;
    }

    public ApiAccess setUri(Uri uri){
        this.uri = uri;
        return this;
    }

    /*
    * une interface pour les classes qui on besoin de récuperer le resultat du ApiAccess class
    */
    public interface ApiAccessWork {
        void doStuffWithResult(String result);
    }
}

locationOp.java

package com.pfe.projet.tracker.tasks;

import android.net.Uri;
import android.util.Log;

import com.pfe.projet.tracker.data.LocationInfo;

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

public class SendLocation implements ApiAccess.ApiAccessWork{

    private String toSend;

    public SendLocation(LocationInfo location){
        this.toSend = buildJson(location);
    }

    public void startSending(){
        Log.v("SendLocation : ", " start sending *****************************");
        if(this.toSend != null && this.toSend.length() > 0){
            Uri uri = Uri.parse("http://10.0.3.2:3000").buildUpon()
                    .appendPath("api")
                    .appendPath("insertPosition").build();
            new ApiAccess().setCaller(this)
                    .setUri(uri).setMethod("POST")
                    .setBody(this.toSend).execute();
        }else{
            return;
        }
    }

    public String buildJson(LocationInfo location){
        JSONObject json = new JSONObject();
        String toSend = null;
        try {
            json.put("imei", location.getUuid());
            json.put("time", location.getTime());
            JSONArray array = new JSONArray();
            array.put(0, location.getLt());
            array.put(1, location.getLg());
            json.put("position",array);
            toSend = json.toString(4);
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return toSend;
    }

    @Override
    public void doStuffWithResult(String result) {
        Log.v("TEST", "************************************");
        Log.v("TEST", "********"+result+"*********");
        Log.v("TEST", "************************************");
    }
}