Back to project page artifactly.
The source code is released under:
Apache License
If you think the Android project artifactly listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
/* * Copyright 2011 Thomas Amsler/* www . ja v a 2 s . c om*/ * * 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 org.artifactly.client; import org.artifactly.client.service.ArtifactlyService; import org.artifactly.client.service.LocalService; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.content.pm.PackageManager.NameNotFoundException; import android.content.res.Configuration; import android.location.Location; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.util.Log; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.webkit.ConsoleMessage; import android.webkit.WebChromeClient; import android.webkit.WebView; import android.widget.Toast; public class Artifactly extends Activity implements ApplicationConstants { private static final String ARTIFACTLY_URL = "file:///android_asset/artifactly.html"; private static final String PROD_LOG_TAG = " ** A.A. **"; //private static final String DEBUG_LOG_TAG = " ** DEBUG A.A. **"; // Preferences private static final String PREFS_NAME = "ArtifactlyPrefsFile"; // Constants private static final String EMPTY_STRING = ""; // JavaScript function constants private static final String JAVASCRIPT_PREFIX = "javascript:"; private static final String JAVASCRIPT_FUNCTION_OPEN_PARENTHESIS = "("; private static final String JAVASCRIPT_FUNCTION_CLOSE_PARENTHESIS = ")"; private static final String JAVASCRIPT_BRIDGE_PREFIX = "android"; // JavaScript functions private static final String GET_ARTIFACTS_CALLBACK = "getArtifactsCallback"; private static final String GET_ARTIFACT_CALLBACK = "getArtifactCallback"; private static final String GET_ARTIFACTS_FOR_CURRENT_LOCATION_CALLBACK = "getArtifactsForCurrentLocationCallback"; private static final String GET_LOCATIONS_OPTIONS_CALLBACK = "getLocationsOptionsCallback"; private static final String GET_LOCATIONS_LIST_CALLBACK = "getLocationsListCallback"; private static final String CREATE_ARTIFACT_CALLBACK = "createArtifactCallback"; private static final String HAS_ARTIFACTS_AT_LOCATION_CALLBACK = "hasArtifactsAtLocationCallback"; private static final String RESET_WEBVIEW = "resetWebView"; private static final String SHOW_OPTIONS_PAGE = "showOptionsPage"; private static final String SHOW_MAP_PAGE = "showMapPage"; private static final String SHOW_APP_INFO_PAGE = "showAppInfoPage"; private static final String SHOW_WELCOME_PAGE = "showWelcomePage"; private static final String SHOW_ORIENTATION_PORTRAIT_MODE = "showOrientationPortraitMode"; private static final String SHOW_ORIENTATION_LANDSCAPE_MODE = "showOrientationLandscapeMode"; private static final String SHOW_ARTIFACTS_PAGE = "showArtifactsPage"; private static final String BROADCAST_CURRENT_LOCATION = "broadcastCurrentLocation"; // Thread sleep time before we try the callJavaScriptFunction(...) call again private static final int THREAD_SLEEP_BEFORE_RETRY_ACCESS_LOCALSERVICE = 1000; private WebView webView = null; private Handler mHandler = new Handler(); // Access to service API private ServiceConnection serviceConnection = getServiceConnection(); private LocalService localService = null; private boolean isBound = false; private IntentFilter locationUpdateIntentFilter = new IntentFilter(LOCATION_UPDATE_INTENT); private IntentFilter connectivityIntentFilter = new IntentFilter(android.net.ConnectivityManager.CONNECTIVITY_ACTION); private IntentFilter hasArtifactsAtCurrentLocationIntentFilter = new IntentFilter(HAS_ARTIFACTS_AT_CURRENT_LOCATION_INTENT); private BroadcastReceiver locationUpdateBroadcastReceiver = null; private BroadcastReceiver connectivityBroadcastReceiver = null; private BroadcastReceiver hasArtifactsAtCurrentLocationReceiver = null; private boolean canAccessInternet = true; private String version = ""; /* * (non-Javadoc) * @see android.app.Activity#onCreate(android.os.Bundle) */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Setting up the WebView webView = (WebView) findViewById(R.id.webview); webView.getSettings().setJavaScriptEnabled(true); webView.addJavascriptInterface(new JavaScriptInterface(), JAVASCRIPT_BRIDGE_PREFIX); // Disable the vertical scroll bar webView.setVerticalScrollBarEnabled(false); webView.setWebChromeClient(new WebChromeClient() { public boolean onConsoleMessage(ConsoleMessage cm) { Log.d(PROD_LOG_TAG, cm.message() + " -- From line " + cm.lineNumber() + " of " + cm.sourceId() ); return true; } }); webView.loadUrl(ARTIFACTLY_URL); /* * Calling startService so that the service keeps running. e.g. After application installation * The start of the service at boot is handled via a BroadcastReceiver and the BOOT_COMPLETED action */ startService(new Intent(this, ArtifactlyService.class)); // Bind to the service bindService(new Intent(this, ArtifactlyService.class), serviceConnection, BIND_AUTO_CREATE); isBound = true; // Instantiate the broadcast receiver locationUpdateBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { new GetArtifactsForCurrentLocationTask().execute(); } }; connectivityBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context arg0, Intent arg1) { canAccessInternet = hasConnectivity(); } }; hasArtifactsAtCurrentLocationReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if(null != localService) { Location location = localService.getLocation(); callJavaScriptFunction(BROADCAST_CURRENT_LOCATION, locationToJSON(location)); } } }; // Initialize connectivity flag canAccessInternet = hasConnectivity(); // Get version information from AndroidManifest.xml try { version = this.getPackageManager().getPackageInfo(this.getPackageName(), 0).versionName; } catch (NameNotFoundException e) { Log.w(PROD_LOG_TAG, "Exception accessing version information", e); } } /* * (non-Javadoc) * @see android.app.Activity#onCreateOptionsMenu(android.view.Menu) */ @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.opitons, menu); return true; } /* * (non-Javadoc) * @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem) */ @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle item selection switch (item.getItemId()) { case R.id.options: callJavaScriptFunction(SHOW_OPTIONS_PAGE); return true; case R.id.map: callJavaScriptFunction(SHOW_MAP_PAGE); return true; case R.id.info: callJavaScriptFunction(SHOW_APP_INFO_PAGE); return true; case R.id.welcome: callJavaScriptFunction(SHOW_WELCOME_PAGE); return true; case R.id.feedback: emailFeedback(); return true; default: return super.onOptionsItemSelected(item); } } /* * Handle back button clicks in webview * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent) */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) { webView.goBack(); return true; } return super.onKeyDown(keyCode, event); } /* * (non-Javadoc) * @see android.app.Activity#onStart() */ @Override public void onStart() { super.onStart(); if(!isBound) { // Connect to the local service API bindService(new Intent(this, ArtifactlyService.class), serviceConnection, BIND_AUTO_CREATE); isBound = true; } } /* * (non-Javadoc) * @see android.app.Activity#onResume() */ @Override public void onResume() { super.onResume(); if(!isBound) { // Connect to the local service API bindService(new Intent(this, ArtifactlyService.class), serviceConnection, BIND_AUTO_CREATE); isBound = true; } // Register broadcast receivers registerReceiver(locationUpdateBroadcastReceiver, locationUpdateIntentFilter); registerReceiver(connectivityBroadcastReceiver, connectivityIntentFilter); registerReceiver(hasArtifactsAtCurrentLocationReceiver, hasArtifactsAtCurrentLocationIntentFilter); } /* * (non-Javadoc) * @see android.app.Activity#onPause() */ @Override public void onPause() { super.onPause(); if(isBound) { isBound = false; try { unbindService(serviceConnection); } catch(IllegalArgumentException e) { Log.w(PROD_LOG_TAG, "onPause() -> unbindService() caused an IllegalArgumentException", e); } } // Unregister broadcast receivers unregisterReceiver(locationUpdateBroadcastReceiver); unregisterReceiver(connectivityBroadcastReceiver); unregisterReceiver(hasArtifactsAtCurrentLocationReceiver); } /* * (non-Javadoc) * @see android.app.Activity#onStop() */ @Override public void onStop() { super.onStop(); // Reset the WebView to show the welcome page callJavaScriptFunction(RESET_WEBVIEW); if(isBound) { isBound = false; try { unbindService(serviceConnection); } catch(IllegalArgumentException e) { Log.w(PROD_LOG_TAG, "onStop() -> unbindService() caused an IllegalArgumentException", e); } } } /* * (non-Javadoc) * @see android.app.Activity#onDestroy() */ @Override public void onDestroy() { super.onDestroy(); if(isBound) { isBound = false; try { unbindService(serviceConnection); } catch(IllegalArgumentException e) { Log.w(PROD_LOG_TAG, "onDestroy() -> unbindService() caused an IllegalArgumentException", e); } } } @Override public void onConfigurationChanged (Configuration newConfig) { super.onConfigurationChanged(newConfig); switch(newConfig.orientation) { case Configuration.ORIENTATION_PORTRAIT: callJavaScriptFunction(SHOW_ORIENTATION_PORTRAIT_MODE); break; case Configuration.ORIENTATION_LANDSCAPE: callJavaScriptFunction(SHOW_ORIENTATION_LANDSCAPE_MODE); break; } } /* * (non-Javadoc) * @see android.app.Activity#onNewIntent(android.content.Intent) */ @Override public void onNewIntent(Intent intent) { callJavaScriptFunction(SHOW_ARTIFACTS_PAGE); new GetArtifactsForCurrentLocationTask().execute(); } /* * Helper method to call JavaScript methods */ private void callJavaScriptFunction(final String functionName, final String json) { mHandler.post(new Runnable() { public void run() { StringBuilder stringBuilder = new StringBuilder(); stringBuilder.append(JAVASCRIPT_PREFIX); stringBuilder.append(functionName); stringBuilder.append(JAVASCRIPT_FUNCTION_OPEN_PARENTHESIS); stringBuilder.append(json); stringBuilder.append(JAVASCRIPT_FUNCTION_CLOSE_PARENTHESIS); try { webView.loadUrl(stringBuilder.toString()); } catch(Exception e1) { Log.w(PROD_LOG_TAG, "callJavaScriptFunction(...) name = " + functionName); } } }); } /* * Helper method to call JavaScript methods without JSON data */ private void callJavaScriptFunction(final String functionName) { callJavaScriptFunction(functionName, ""); } // Define methods that are called from JavaScript public class JavaScriptInterface { public String getVersion() { return version; } public void setRadius(int radius) { if(PREFERENCE_RADIUS_MIN <= radius && radius <= PREFERENCE_RADIUS_MAX) { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); editor.putInt(PREFERENCE_RADIUS, radius); editor.commit(); // Getting radius unit String unit = settings.getString(PREFERENCE_RADIUS_UNIT, PREFERENCE_RADIUS_UNIT_DEFAULT); String message = String.format(getResources().getString(R.string.set_location_radius), radius, unit); Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show(); } else { String message = String.format(getResources().getString(R.string.set_location_radius_error), PREFERENCE_RADIUS_MIN, PREFERENCE_RADIUS_MAX); Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show(); } } public void setRadiusUnit(String type) { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); editor.putString(PREFERENCE_RADIUS_UNIT, type); editor.commit(); String unit = ""; if(UNIT_M.equals(type)) { unit = "meters"; } else if(UNIT_KM.equals(type)) { unit = "kilometers"; } else if(UNIT_FT.equals(type)) { unit = "feet"; } else if(UNIT_MI.equals(type)) { unit = "miles"; } String message = String.format(getResources().getString(R.string.preference_radius_unit), unit); Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show(); } public void setSoundNotificationPreference(boolean preference) { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); editor.putBoolean(PREFERENCE_SOUND_NOTIFICATION, preference); editor.commit(); if(preference) { Toast.makeText(getApplicationContext(), R.string.preference_sound_alert_on, Toast.LENGTH_SHORT).show(); } else { Toast.makeText(getApplicationContext(), R.string.preference_sound_alert_off, Toast.LENGTH_SHORT).show(); } } public void setLoadStaticMapPreference(boolean preference) { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); editor.putBoolean(PREFERENCE_LOAD_STATIC_MAP, preference); editor.commit(); if(preference) { Toast.makeText(getApplicationContext(), R.string.preference_load_maps_on, Toast.LENGTH_SHORT).show(); } else { Toast.makeText(getApplicationContext(), R.string.preference_load_maps_off, Toast.LENGTH_SHORT).show(); } } public String getPreferences() { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); JSONObject preferences = new JSONObject(); try { // Sound notification preference preferences.put("soundNotification", settings.getBoolean(PREFERENCE_SOUND_NOTIFICATION, PREFERENCE_SOUND_NOTIFICATION_DEFAULT)); // Radius preference preferences.put("radius", settings.getInt(PREFERENCE_RADIUS, PREFERENCE_RADIUS_DEFAULT)); // Radius unit preference preferences.put("radiusUnit", settings.getString(PREFERENCE_RADIUS_UNIT, PREFERENCE_RADIUS_UNIT_DEFAULT)); // Static map loading preference preferences.put("loadStaticMap", settings.getBoolean(PREFERENCE_LOAD_STATIC_MAP, PREFERENCE_LOAD_STATIC_MAP_DEFAULT)); } catch(JSONException e) { Toast.makeText(getApplicationContext(), R.string.loading_preferences_error, Toast.LENGTH_SHORT).show(); } return preferences.toString(); } public void deleteArtifact(String artifactId, String locationId) { new DeleteArtifactTask().execute(artifactId, locationId); } public void deleteLocation(String locationId) { new DeleteLocationTask().execute(locationId); } public void createArtifact(String artifactName, String artifactData, String locationName, String locationLat, String locationLng) { new CreateArtifactTask().execute(artifactName, artifactData, locationName, locationLat, locationLng); } public void showRadius() { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); int radius = settings.getInt(PREFERENCE_RADIUS, PREFERENCE_RADIUS_DEFAULT); String message = String.format(getResources().getString(R.string.set_location_radius), radius); Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show(); } public String getLocation() { Location location = localService.getLocation(); return locationToJSON(location); } public void getArtifact(String artId, String locId) { new GetArtifactTask().execute(artId, locId); } public void getArtifacts() { new GetArtifactsTask().execute(); } public void getArtifactsForCurrentLocation() { new GetArtifactsForCurrentLocationTask().execute(); } public boolean canAccessInternet() { return canAccessInternet; } public boolean canLoadStaticMap() { SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE); boolean canLoadStaticMap = settings.getBoolean(PREFERENCE_LOAD_STATIC_MAP, PREFERENCE_LOAD_STATIC_MAP_DEFAULT); return canLoadStaticMap && canAccessInternet; } public String getApiKeys() { JSONObject apiKeys = new JSONObject(); try { apiKeys.put("localSearch", getResources().getString(R.string.google_search_api_key)); apiKeys.put("placesSearch", getResources().getString(R.string.google_places_api_key)); } catch(JSONException e) { Toast.makeText(getApplicationContext(), R.string.loading_api_keys_error, Toast.LENGTH_SHORT).show(); } return apiKeys.toString(); } public void getLocations(String callback) { new GetLocationsTask().execute(callback); } public void updateArtifact(String artId, String artName, String artData, String locId, String locName) { new UpdateArtifactTask().execute(artId, artName, artData, locId, locName); } public void updateArtifactData(String artId, String artData) { new UpdateArtifactDataTask().execute(artId, artData); } public void updateLocation(String locId, String locName, String locLat, String locLng) { new UpdateLocationTask().execute(locId, locName, locLat, locLng); } public void updateLocationCoodinates(String locId, String locName, String locLat, String locLng) { new UpdateLocationCoodinatesTask().execute(locId, locName, locLat, locLng); } public void showMessage(String messageKey) { if("update_location_help".equals(messageKey)) { Toast.makeText(getApplicationContext(), R.string.update_location_help, Toast.LENGTH_LONG).show(); } } public void hasArtifactsAtLocation(String locId) { new HasArtifactsAtLocationTask().execute(locId); } } // Method that handles the mail feedback private void emailFeedback() { String toList[] = { "feedback@artifactly.org" }; Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); emailIntent.setType("plain/text"); emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, toList); emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, getResources().getString(R.string.email_feedback_subject)); startActivity(Intent.createChooser(emailIntent, getResources().getString(R.string.email_feedback_chooser))); } // Method that returns a service connection private ServiceConnection getServiceConnection() { return new ServiceConnection() { public void onServiceConnected(ComponentName componentName, IBinder iBinder) { localService = (LocalService)iBinder; isBound = true; } public void onServiceDisconnected(ComponentName componentName) { localService = null; isBound = false; } }; } /* * Helper method that turns a Location object into JSON */ private String locationToJSON(Location location) { JSONObject data = new JSONObject(); if(null == location) { Toast.makeText(getApplicationContext(), R.string.get_location_error, Toast.LENGTH_LONG).show(); try { data.put("locLat", 0.0d); data.put("locLng", 0.0d); data.put("locAccuracy", 0.0d); } catch (JSONException e) { Log.e(PROD_LOG_TAG, "Error while populating JSONArray", e); } } else { try { data.put("locLat", location.getLatitude()); data.put("locLng", location.getLongitude()); data.put("locAccuracy", location.getAccuracy()); } catch (JSONException e) { Log.e(PROD_LOG_TAG, "Error while population JSONArray", e); } } return data.toString(); } /* * Helper method that checks if a string is a valid Double */ private boolean isDouble(String number) { try { Double.parseDouble(number); } catch (NumberFormatException nfe) { return false; } return true; } /* * Helper method to check if there is network connectivity */ private boolean hasConnectivity() { ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); if(null == connectivityManager) { return false; } NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); if(null != networkInfo && networkInfo.isAvailable() && networkInfo.isConnected()) { return true; } else { return false; } } private class CreateArtifactTask extends AsyncTask<String, Void, Byte> { /* * args[0] = artifactName * args[1] = artifactData * args[2] = locationName * args[3] = locationLat * args[4] = locationLng * */ @Override protected Byte doInBackground(String... args) { if(null == args[0] || EMPTY_STRING.equals(args[0])) { return Byte.valueOf(ARTIFACT_NAME_ERROR); } if(null == args[2] || EMPTY_STRING.equals(args[2])) { return Byte.valueOf(LOCATION_NAME_ERROR); } byte state = 0; // If latitude and longitude are provided we use them, otherwise we use the current location // TODO: Add check if provided latitude and longitude are valid GEO points if(null != args[3] && !EMPTY_STRING.equals(args[3]) && null != args[4] && !EMPTY_STRING.equals(args[4]) && isDouble(args[3]) && isDouble(args[4])) { state = localService.createArtifact(args[0], args[1], args[2], args[3], args[4]); } else { /* * This cases shouldn't happen. Log error message */ Log.e(PROD_LOG_TAG, "Create artifact didn't have a valid location associated"); } return Byte.valueOf(state); } @Override protected void onPostExecute(Byte result) { byte state = result.byteValue(); boolean returnValue = false; if((state ^ CREATE_ARTIFACT_LOCATION_ERROR) == IS_MATCH) { Toast.makeText(getApplicationContext(), R.string.create_artifact_failure, Toast.LENGTH_LONG).show(); returnValue = false; } else if((state ^ CHOOSE_DIFFERENT_LOC_NAME) == IS_MATCH) { Toast.makeText(getApplicationContext(), R.string.create_artifact_provide_different_location_name, Toast.LENGTH_LONG).show(); returnValue = false; } else if((state ^ ARTIFACT_AND_LOCATION_EXIST) == IS_MATCH) { Toast.makeText(getApplicationContext(), R.string.create_artifact_already_exists, Toast.LENGTH_LONG).show(); returnValue = false; } else if((state ^ ARTIFACT_NAME_ERROR) == IS_MATCH) { Toast.makeText(getApplicationContext(), R.string.create_artifact_name_error, Toast.LENGTH_SHORT).show(); returnValue = false; } else if((state ^ LOCATION_NAME_ERROR) == IS_MATCH) { Toast.makeText(getApplicationContext(), R.string.create_artifact_location_name_error, Toast.LENGTH_SHORT).show(); returnValue = false; } else { //new GetArtifactsForCurrentLocationTask().execute(); Toast.makeText(getApplicationContext(), R.string.create_artifact_success, Toast.LENGTH_SHORT).show(); returnValue = true; } JSONObject data = new JSONObject(); try { data.put("isSuccess", returnValue); } catch (JSONException e) { Log.e(PROD_LOG_TAG, "ERROR: json.put()", e); } callJavaScriptFunction(CREATE_ARTIFACT_CALLBACK, data.toString()); } } private class GetArtifactsForCurrentLocationTask extends AsyncTask<Void, Void, Void> { @Override protected Void doInBackground(Void... params) { /* * Check if the localService is null, in which case we wait for some time and try again */ if(null == localService) { try { // Give enough time so that the localService can bind Thread.sleep(THREAD_SLEEP_BEFORE_RETRY_ACCESS_LOCALSERVICE); } catch(Exception e) { Log.w(PROD_LOG_TAG, "EXCEPTION: Thread.sleep(N)", e); } } if(null != localService) { String result = localService.getArtifactsForCurrentLocation(); callJavaScriptFunction(GET_ARTIFACTS_FOR_CURRENT_LOCATION_CALLBACK, result); } else { callJavaScriptFunction(GET_ARTIFACTS_FOR_CURRENT_LOCATION_CALLBACK, "[]"); } return null; } } private class GetArtifactsTask extends AsyncTask<Void, Void, Void> { @Override protected Void doInBackground(Void... arg0) { if(null == localService) { callJavaScriptFunction(GET_ARTIFACTS_CALLBACK, "[]"); } else { String result = localService.getArtifacts(); callJavaScriptFunction(GET_ARTIFACTS_CALLBACK, result); } return null; } } private class GetLocationsTask extends AsyncTask<String, Void, Void> { @Override protected Void doInBackground(String... args) { if(null == localService) { if("options".equals(args[0])) { callJavaScriptFunction(GET_LOCATIONS_OPTIONS_CALLBACK, "[]"); } else if("list".equals(args[0])) { callJavaScriptFunction(GET_LOCATIONS_LIST_CALLBACK, "[]"); } } else { String result = localService.getLocations(); if("options".equals(args[0])) { callJavaScriptFunction(GET_LOCATIONS_OPTIONS_CALLBACK, result); } else if("list".equals(args[0])) { callJavaScriptFunction(GET_LOCATIONS_LIST_CALLBACK, result); } } return null; } } private class GetArtifactTask extends AsyncTask<String, Void, Boolean> { @Override protected Boolean doInBackground(String... args) { if(null == localService) { callJavaScriptFunction(GET_ARTIFACT_CALLBACK, "{}"); return Boolean.FALSE; } else { String result = localService.getAtrifact(args[0], args[1]); callJavaScriptFunction(GET_ARTIFACT_CALLBACK, result); } return Boolean.TRUE; } @Override protected void onPostExecute(Boolean result) { /* * Show Toast in here because onPostExecute executes in UI thread */ if(!result.booleanValue()) { Toast.makeText(getApplicationContext(), R.string.get_artifact_failure, Toast.LENGTH_LONG).show(); } } } private class UpdateArtifactDataTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String... args) { if(null == localService) { return Integer.valueOf(-2); } else if(null == args[0] || "".equals(args[0])) { return Integer.valueOf(-3); } else { return Integer.valueOf(localService.updateArtifactData(args[0], args[1])); } } @Override protected void onPostExecute(Integer result) { /* * Show Toast in here because onPostExecute executes in UI thread */ switch(result.intValue()) { case -1: // general error Toast.makeText(getApplicationContext(), R.string.update_artifact_failure, Toast.LENGTH_LONG).show(); break; case 1: new GetArtifactsForCurrentLocationTask().execute(); Toast.makeText(getApplicationContext(), R.string.update_artifact_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected update artifact result"); } } } private class UpdateArtifactTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String... args) { if(null == localService) { return Integer.valueOf(-2); } else if(null == args[0] || null == args[1] || null == args[3] || null == args[4] || "".equals(args[0]) || "".equals(args[1]) || "".equals(args[3]) || "".equals(args[4])) { // Above, we check all the fields except args[2], which is the location data. It can be null/empty return Integer.valueOf(-3); } else { return Integer.valueOf(localService.updateArtifact(args[0], args[1], args[2], args[3], args[4])); } } @Override protected void onPostExecute(Integer result) { /* * Show Toast in here because onPostExecute executes in UI thread */ switch(result.intValue()) { case -4: // location name collision Toast.makeText(getApplicationContext(), R.string.update_artifact_duplicate_location_name, Toast.LENGTH_LONG).show(); break; case -3: // invalid input Toast.makeText(getApplicationContext(), R.string.update_artifact_invalid_input, Toast.LENGTH_LONG).show(); break; case -2: // general error Toast.makeText(getApplicationContext(), R.string.update_artifact_failure, Toast.LENGTH_LONG).show(); break; case -1: // artifact name collision Toast.makeText(getApplicationContext(), R.string.update_artifact_duplicate_artifact_name, Toast.LENGTH_LONG).show(); break; case 1: new GetArtifactsForCurrentLocationTask().execute(); Toast.makeText(getApplicationContext(), R.string.update_artifact_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected update artifact result"); } } } private class UpdateLocationTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String ... args) { if(null == localService) { return Integer.valueOf(-2); } else if(null == args[0] || null == args[1] || null == args[2] || null == args[3] || "".equals(args[0]) || "".equals(args[1]) || "".equals(args[2]) || "".equals(args[3])) { // Above, we check all the fields. They cannot be null or empty return Integer.valueOf(-3); } else { return Integer.valueOf(localService.updateLocation(args[0], args[1], args[2], args[3])); } } @Override protected void onPostExecute(Integer result) { switch(result.intValue()) { case -3: // invalid input Toast.makeText(getApplicationContext(), R.string.update_location_invalid_input, Toast.LENGTH_LONG).show(); break; case -2: // general error Toast.makeText(getApplicationContext(), R.string.update_location_failure, Toast.LENGTH_LONG).show(); break; case -1: // location name collision Toast.makeText(getApplicationContext(), R.string.update_location_duplicate_location_name, Toast.LENGTH_LONG).show(); break; case 1: new GetArtifactsForCurrentLocationTask().execute(); new GetLocationsTask().execute("list"); Toast.makeText(getApplicationContext(), R.string.update_location_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected update location result"); } } } private class UpdateLocationCoodinatesTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String ... args) { if(null == localService) { return Integer.valueOf(-2); } else if(null == args[0] || null == args[1] || null == args[2] || null == args[3] || "".equals(args[0]) || "".equals(args[1]) || "".equals(args[2]) || "".equals(args[3])) { // Above, we check all the fields. They cannot be null or empty return Integer.valueOf(-3); } else { return Integer.valueOf(localService.updateLocationCoodinates(args[0], args[1], args[2], args[3])); } } @Override protected void onPostExecute(Integer result) { switch(result.intValue()) { case -3: // invalid input Toast.makeText(getApplicationContext(), R.string.update_location_invalid_input, Toast.LENGTH_LONG).show(); break; case -2: // general error Toast.makeText(getApplicationContext(), R.string.update_location_failure, Toast.LENGTH_LONG).show(); break; case -1: // coordinate collision Toast.makeText(getApplicationContext(), R.string.update_location_coordinates_exist, Toast.LENGTH_LONG).show(); break; case 1: new GetArtifactsForCurrentLocationTask().execute(); new GetLocationsTask().execute("list"); Toast.makeText(getApplicationContext(), R.string.update_location_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected update location result"); } } } private class DeleteLocationTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String... args) { if(null == localService || null == args[0] || "".equals(args[0])) { // Above, we check the parameter. It cannot be null or empty return Integer.valueOf(-2); } else { return Integer.valueOf(localService.deleteLocation(args[0])); } } @Override protected void onPostExecute(Integer result) { switch(result.intValue()) { case -2: // Intentional no break statement for this case case -1: Toast.makeText(getApplicationContext(), R.string.delete_location_failure, Toast.LENGTH_LONG).show(); break; case 0: Toast.makeText(getApplicationContext(), R.string.delete_location_partial, Toast.LENGTH_LONG).show(); break; case 1: new GetLocationsTask().execute("list"); new GetArtifactsForCurrentLocationTask().execute(); Toast.makeText(getApplicationContext(), R.string.delete_location_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected deleteLocation() status"); } } } private class DeleteArtifactTask extends AsyncTask<String, Void, Integer> { @Override protected Integer doInBackground(String... args) { if(null == localService || null == args[0] || null == args[1] || "".equals(args[0]) || "".equals(args[1])) { // Above, we check the parameters. They cannot be null or empty return Integer.valueOf(-2); } else { return Integer.valueOf(localService.deleteArtifact(args[0], args[1])); } } @Override protected void onPostExecute(Integer result) { switch(result.intValue()) { case -2: case -1: Toast.makeText(getApplicationContext(), R.string.delete_artifact_failure, Toast.LENGTH_LONG).show(); break; case 1: new GetArtifactsForCurrentLocationTask().execute(); Toast.makeText(getApplicationContext(), R.string.delete_artifact_success, Toast.LENGTH_SHORT).show(); break; default: Log.e(PROD_LOG_TAG, "ERROR: unexpected deleteArtifact() status"); } } } private class HasArtifactsAtLocationTask extends AsyncTask<String, Void, Void> { @Override protected Void doInBackground(String... args) { if(null == localService) { // We don't do anything return null; } boolean hasArtifacts = localService.hasArtifactsAtLocation(args[0]); /* * We only call the JS callback if there are artifacts so that we can hide the delete button */ if(hasArtifacts) { callJavaScriptFunction(HAS_ARTIFACTS_AT_LOCATION_CALLBACK); } return null; } } }