Java tutorial
/** * Eliademy * * @copyright CBTec Oy * @license All rights reserved */ package com.cbtec.eliademy; import java.util.Arrays; import java.util.HashMap; import java.util.Map; import android.annotation.SuppressLint; import android.app.Activity; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.database.Cursor; import android.net.Uri; import android.os.IBinder; import android.provider.MediaStore.MediaColumns; import android.util.Log; import org.apache.cordova.api.CordovaPlugin; import org.apache.cordova.api.CallbackContext; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import com.cbtec.lmsservice.LmsService; public class EliademyLms extends CordovaPlugin { private LmsService mIBinder = null; private boolean mIsBound = false; private CallbackContext mCallbackContext; private final int submitFileCode = 1001; private String mServiceName = "com.cbtec.servicemoodle22"; private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName className, IBinder service) { mIBinder = LmsService.Stub.asInterface(service); // Log.i("HLMS", "Service connection initialized"); mCallbackContext.success(); mCallbackContext = null; } @Override public void onServiceDisconnected(ComponentName className) { mIBinder = null; } }; void doBindService() { cordova.getActivity().bindService(new Intent(mServiceName), mConnection, cordova.getActivity().getApplicationContext().BIND_AUTO_CREATE); mIsBound = true; } void doUnbindService() { if (mIsBound) { cordova.getActivity().unbindService(mConnection); mIsBound = false; } } /** * Executes the request. * * This method is called from the WebView thread. To do a non-trivial amount * of work, use: cordova.getThreadPool().execute(runnable); * * To run on the UI thread, use: * cordova.getActivity().runOnUiThread(runnable); * * @param action * The action to execute. * @param rawArgs * The exec() arguments in JSON form. * @param callbackContext * The callback context used when calling back into JavaScript. * @return Whether the action was valid. * @throws JSONException */ @Override public boolean execute(String action, JSONArray data, final CallbackContext callbackContext) throws JSONException { // Log.i("HLMS", action); if ((action.compareTo("openfilesrv") == 0)) { try { Uri fileuri = Uri.parse(data.getString(0)); Intent intent = new Intent(Intent.ACTION_VIEW); String mimeextn = android.webkit.MimeTypeMap.getFileExtensionFromUrl(data.getString(0)); if (mimeextn.isEmpty()) { mimeextn = data.getString(0).substring(data.getString(0).indexOf(".") + 1); ; } String mimetype = android.webkit.MimeTypeMap.getSingleton().getMimeTypeFromExtension(mimeextn); // Log.i("HLMS", fileuri + " " + mimetype); intent.setDataAndType(fileuri, mimetype); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); cordova.getActivity().getApplicationContext().startActivity(intent); callbackContext.success(); } catch (Exception e) { // Log.e("HLMS", "exception", e); callbackContext.error(0); } return true; } else if ((action.compareTo("getfilesrv") == 0)) { this.mCallbackContext = callbackContext; cordova.getThreadPool().execute(new Runnable() { @Override public void run() { try { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("*/*");// TODO: Restrict file types cordova.startActivityForResult(EliademyLms.this, intent, submitFileCode); } catch (Exception e) { // Log.e("HLMS", "exception", e); callbackContext.error(0); } return; } }); } else if ((action.compareTo("initservice") == 0)) { if (!mIsBound) { this.mCallbackContext = callbackContext; JSONObject tmp = new JSONObject(data.getString(0)); String sname = tmp.getString("servicename"); if (sname.contains("eliademy")) { mServiceName = "com.cbtec.serviceeliademy"; } else { // From url determine version 2.2, 2.3, 2.4 and change mServiceName = "com.cbtec.service" + sname; } // Log.i("HLMS", "Connecting to service: " + mServiceName); doBindService(); } else { callbackContext.success(); } return true; } else { final String aAction = action; final JSONArray aData = data; String mappedCmd = null; try { mappedCmd = mapExecCommand(aData.getString(0)); } catch (JSONException e) { // Log.e("HLMS", "exception", e); } if (mappedCmd == null) { // Log.i("HLMS", "LMS service call failed " + mappedCmd); callbackContext.error(0);// TODO : error enum return false; } final String execCmd = mappedCmd; cordova.getThreadPool().execute(new Runnable() { @Override @SuppressLint("NewApi") public void run() { // Log.i("HLMS","Runner execute " + aAction + aData.toString()); if (aAction.compareTo("lmsservice") == 0) { try { String retval = null; // Log.i("HLMS", "Execute cmd: " + execCmd); if (execCmd.compareTo("initialize") == 0) { if (mIBinder.initializeService(aData.getString(1))) { String token = mIBinder.eliademyGetWebServiceToken(); callbackContext.success(token); return; } } else if (execCmd.compareTo("deinitialize") == 0) { if (mIBinder.deInitializeService(aData.getString(1))) { doUnbindService(); callbackContext.success(); return; } } else if (execCmd.compareTo("pushregister") == 0) { // Log.i("pushdata", aData.getString(1)); if (mIBinder.registerPushNotifications(aData.getString(1))) { callbackContext.success(); return; } } else if (execCmd.compareTo("pushunregister") == 0) { // Log.i("pushdata", aData.getString(1)); if (mIBinder.unregisterPushNotifications(aData.getString(1))) { callbackContext.success(); return; } } else if (execCmd.compareTo("servicetoken") == 0) { retval = mIBinder.eliademyGetWebServiceToken(); } else if (execCmd.compareTo("siteinfo") == 0) { retval = mIBinder.eliademyGetSiteInformation(aData.getString(1)); } else if (execCmd.compareTo("get_user_courses") == 0) { retval = mIBinder.eliademyGetUsersCourses(aData.getString(1)); } else if (execCmd.compareTo("get_user_forums") == 0) { retval = mIBinder.eliademyGetUserForums(aData.getString(1)); } else if (execCmd.compareTo("get_user_info") == 0) { retval = mIBinder.eliademyGetUserInformation(aData.getString(1)); } else if (execCmd.compareTo("exec_webservice") == 0) { // Log.i("HLMS", "Execute webservice"); retval = mIBinder.eliademyExecWebService(aData.getString(0), aData.getString(1)); } else if (execCmd.compareTo("course_get_contents") == 0) { retval = mIBinder.eliademyGetCourseContents(aData.getString(1)); } else if (execCmd.compareTo("course_get_enrolled_users") == 0) { retval = mIBinder.eliademyGetEnrolledUsers(aData.getString(1)); } else { // Log.i("HLMS", "LMS service failed " + execCmd); callbackContext.error(0);// TODO : error enum } if (!retval.isEmpty()) { // Log.i("HLMS", "LMS service call success"); callbackContext.success(retval); } else { // Log.i("HLMS", "LMS service call failed"); callbackContext.error(0);// TODO : error enum } } catch (Exception e) { // Log.e("HLMS", "exception", e); callbackContext.error(e.getMessage()); return; } } else { // Log.i("LMS", "Unsupported action call !!"); callbackContext.error(0); return; } } }); } return true; } private String mapExecCommand(String service) { String[] reqFunct = { "siteinfo", "initialize", "deinitialize" }; if (Arrays.asList(reqFunct).contains(service)) { return service; } if (mServiceName.contains("serviceeliademy")) { if ((service.compareTo("pushregister") == 0) || (service.compareTo("pushunregister") == 0)) { return service; } else if (service.contains("local_monorailservices") || service.contains("core_enrol_get_enrolled_users")) { return "exec_webservice"; } else { return null; } } else { // TODO: Add support for diff versions // Map of monorail sevices to moodle services... Map<String, String> moodleSupport = new HashMap<String, String>(); moodleSupport.put("local_monorailservices_get_users_by_id", "get_user_info"); moodleSupport.put("local_monorailservices_get_assignments", "get_user_courses"); moodleSupport.put("local_monorailservices_course_get_cont", "course_get_contents"); moodleSupport.put("core_enrol_get_enrolled_users", "course_get_enrolled_users"); moodleSupport.put("local_monorailservices_get_forums", "get_user_forums"); return moodleSupport.get(service); } } /** * Called when the system is about to start resuming a previous activity. * * @param multitasking * Flag indicating if multitasking is turned on for app */ @Override public void onPause(boolean multitasking) { } /** * Called when the activity will start interacting with the user. * * @param multitasking * Flag indicating if multitasking is turned on for app */ @Override public void onResume(boolean multitasking) { } /** * Called when the activity receives a new intent. */ @Override public void onNewIntent(Intent intent) { } /** * The final call you receive before your activity is destroyed. */ @Override public void onDestroy() { super.onDestroy(); doUnbindService(); } /** * Called when a message is sent to plugin. * * @param id * The message id * @param data * The message data * @return Object to stop propagation or null */ @Override public Object onMessage(String id, Object data) { return null; } /** * Called when an activity you launched exits, giving you the requestCode * you started it with, the resultCode it returned, and any additional data * from it. * * @param requestCode * The request code originally supplied to * startActivityForResult(), allowing you to identify who this * result came from. * @param resultCode * The integer result code returned by the child activity through * its setResult(). * @param data * An Intent, which can return result data to the caller (various * data can be attached to Intent "extras"). */ @Override public void onActivityResult(int requestCode, int resultCode, Intent intent) { switch (requestCode) { case submitFileCode: if (resultCode == Activity.RESULT_OK) { Uri uri = intent.getData(); if (uri.getScheme().toString().compareTo("content") == 0) { Cursor cursor = cordova.getActivity().getApplicationContext().getContentResolver().query(uri, null, null, null, null); if (cursor.moveToFirst()) { int column_index = cursor.getColumnIndexOrThrow(MediaColumns.DATA); uri = Uri.parse(cursor.getString(column_index)); } } if (this.mCallbackContext != null) { this.mCallbackContext.success(uri.toString()); return; } else { // Log.i("HLMS", "callback context is null"); } } break; } if (this.mCallbackContext != null) { this.mCallbackContext.error(resultCode); } else { // Log.i("HLMS", "callback context is null"); } } /** * By specifying a <url-filter> in plugins.xml you can map a URL (using * startsWith atm) to this method. * * @param url * The URL that is trying to be loaded in the Cordova webview. * @return Return true to prevent the URL from loading. Default is false. */ @Override public boolean onOverrideUrlLoading(String url) { return false; } /** * Called when the WebView does a top-level navigation or refreshes. * * Plugins should stop any long-running processes and clean up internal * state. * * Does nothing by default. */ @Override public void onReset() { } }