geodemo-android-3

add_poi_getsas.java

private class GetSASTask extends AsyncTask<String, Void, String> {
    @Override
    protected String doInBackground(String... params) {
        getSas();
        return _blobImagePostString;
    }
    /***
     * Handles results of getting SAS.
     * This happens on the UI Thread
     */
    protected void onPostExecute(String result) {
        mLblSASDetails.setText(result);
        mProgressDialog.dismiss();
        mBtnGetSAS.setEnabled(false);
        mBtnSavePOI.setEnabled(true);
    }
}

//Fetches a SAS URL from the server
protected void getSas() {
    try {
        String fetchUrl = String.format(Constants.kBlobSASUrl, Constants.kContainerName,
                System.currentTimeMillis());
        URL url = new URL(fetchUrl);
        HttpURLConnection urlConnection = (HttpURLConnection) url
                .openConnection();
        InputStream in = new BufferedInputStream(
                urlConnection.getInputStream());
        BufferedReader r = new BufferedReader(new InputStreamReader(in));
        StringBuilder total = new StringBuilder();
        String line;
        while ((line = r.readLine()) != null) {
            total.append(line);
        }
        _blobImagePostString = total.toString();
    } catch (Exception ex) {
        Log.e("AddPOI", "Error:" + ex.getMessage());
    }
}

post_poi_task.java

private class PostPointOfInterestTask extends AsyncTask<String, Void, String> {
    @Override
    protected String doInBackground(String... params) {
        return postPointOfInterestToServer();
    
    }

    /***
     * Handles results of trying to post a POI.
     * This occurs on the UI thread
     */
    @Override
    protected void onPostExecute(String result) {
        if (result.equals("Created")) {
            setResult(4321);
            finish();
        } else if (result.equals("FAIL-IMAGE"))
            Toast.makeText(
                    getApplicationContext(),
                    "You must select an image from the gallery prior to uploading a POI.",
                    Toast.LENGTH_LONG).show();
        else if (result.equals("FAIL-LOCATION"))
            Toast.makeText(getApplicationContext(),
                    "You must set a location prior to uploading a POI.",
                    Toast.LENGTH_LONG).show();
        else
            Toast.makeText(mActivity, "POI upload FAILED",
                    Toast.LENGTH_SHORT).show();
        mProgressDialog.dismiss();
    
    }
}

post_point_of_interest.java

private String postPointOfInterestToServer() {
    try {
        // Make sure we have an image selected
        if (this.mImageUrl == null) {
            return "FAIL-IMAGE";
        }
        // Make sure we have a location
        if (mCurrentLocation == null) {
            return "FAIL-LOCATION";
        }
        Cursor cursor = getContentResolver().query(this.mImageUrl, null,null, null, null);
        cursor.moveToFirst();
        int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
        String absoluteFilePath = cursor.getString(index);
        FileInputStream fis = new FileInputStream(absoluteFilePath);
        int bytesRead = 0;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] b = new byte[1024];
        while ((bytesRead = fis.read(b)) != -1) {
            bos.write(b, 0, bytesRead);
        }
        byte[] bytes = bos.toByteArray();
        // Post our byte array to the server
        URL url = new URL(_blobImagePostString.replace("\"", ""));
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setDoOutput(true);
        urlConnection.setRequestMethod("PUT");
        urlConnection.addRequestProperty("Content-Type", "image/jpeg");
        urlConnection.setRequestProperty("Content-Length", ""+ bytes.length);
        // Write image data to server
        DataOutputStream wr = new DataOutputStream(urlConnection.getOutputStream());
        wr.write(bytes);
        wr.flush();
        wr.close();
        int response = urlConnection.getResponseCode();
        if (response == 201
                && urlConnection.getResponseMessage().equals("Created")) {
            // We've posted succesfully, let's build the JSON data
            JSONObject jsonUrl = new JSONObject();
            try {
                jsonUrl.put("Description", absoluteFilePath.substring(absoluteFilePath.lastIndexOf("/") + 1));
                UUID uuid = UUID.randomUUID();
                jsonUrl.put("Id", uuid.toString());
                jsonUrl.put("Latitude", mCurrentLocation.getLatitude());
                jsonUrl.put("Longitude", mCurrentLocation.getLongitude());
                jsonUrl.put("Type", 1);
                jsonUrl.put("Url",this._blobImagePostString.split("\\?")[0]);
            } catch (JSONException e) {
                Log.e("AddPOI", "Exception building JSON: " + e.getMessage());
                e.printStackTrace();
            }
            HttpURLConnection newPOIUrlConnection = null;
            URL newPOIUrl = new URL(Constants.kAddPOIUrl);
            newPOIUrlConnection = (HttpURLConnection) newPOIUrl.openConnection();
            newPOIUrlConnection.setDoOutput(true);
            newPOIUrlConnection.setRequestMethod("POST");
            newPOIUrlConnection.addRequestProperty("Content-Type","application/json");
            newPOIUrlConnection.setRequestProperty("Content-Length",""+ Integer.toString(jsonUrl.toString().getBytes().length));
            // Write json data to server
            DataOutputStream newPoiWR = new DataOutputStream(newPOIUrlConnection.getOutputStream());
            newPoiWR.writeBytes(jsonUrl.toString());
            newPoiWR.flush();
            newPoiWR.close();
            int newPoiResponse = urlConnection.getResponseCode();
            return newPOIUrlConnection.getResponseMessage();                
        }
        // End of post of byte array to server
    } catch (Exception ex) {
        Log.e("AddPOI", "Error in image upload: " + ex.getMessage());
    }
    return "BIGFAIL";
}