Android Push Notification using SMP 3.0.3 and Relay Server in Kepsel Method

[Former Member]

Hi All,

My Domain is ABAP, After certain days of research on android and Phonegap, Finally we developed an application with enabling push notification.

Our business requirement is, we have a vehicle approval process, If sales consultant is giving discount more than certain amount, manager has to approve for the discount.  For this we are done with ABAP code and created services in Gateway.

Note: You should have minimum knowledge on Android development in Eclipse.

Now the following are the steps to enable push notification.

1. Create a Google API Project and get Sender Id, API Key as shown in below link

Getting Started | Android Developers

2.Create an application in SMP for gateway service URL and in PUSH tab in Android section enter Sender Id, API Key

which you got in step 1.

as shown in https://websmp101.sap-ag.de/~sapidb/011000358700000038522014E.pdf

We done with application in SMP.

Now we need to create an application, with following

a. Register with SMP

b. Enable Push Notification

c. GCM Listener

d. And out application.

1. create Android Application project in eclipse.

In AndroidManifest.xml add following

(Change the package name as your application project name)

<!-- GCM connects to Internet Services. -->

    <uses-permission android:name="android.permission.INTERNET" />

    <!-- GCM requires a Google account. -->

    <uses-permission android:name="android.permission.GET_ACCOUNTS" />

    <!-- Keeps the processor from sleeping when a message is received. -->

    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <!-- Creates a custom permission so only this app can receive its messages. -->

    <permission

        android:name="com.packagename.permission.C2D_MESSAGE"

        android:protectionLevel="signature" />

    <uses-permission android:name="com.packagename.permission.C2D_MESSAGE" />

    <!-- This app has permission to register and receive data message. -->

    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

    <!-- Network State Permissions to detect Internet status -->

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <!-- Permission to vibrate -->

    <uses-permission android:name="android.permission.VIBRATE" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

         <!-- receiver is for gcm -->

        <receiver

            android:name="com.google.android.gcm.GCMBroadcastReceiver"

            android:permission="com.google.android.c2dm.permission.SEND" >

            <intent-filter>

                <action android:name="com.google.android.c2dm.intent.RECEIVE" />

                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

                <category android:name="com.packagename" /> 

            </intent-filter>

        </receiver>

        <!-- intent service for gcm -->

        <service android:name="GCMIntentService" />    

    </application>

2. Add following libraries to your project, these libraries you can find in MobileSDK3\KapselSDK\plugins\ folders

AfariaSLL-7.00.6169.0

ClientHubSLL-3.0.1

Common-3.0.0

commons-codec-1.3

Connectivity-3.0.0

cordova-2.9.0

CoreServices-3.0.0

DataVaultLib-2.3.3.13

gcm

gson-2.2.4

maflogger-1.2.1

maflogoncore-1.2.1

maflogonui-1.2.1

mafsettingscreen-1.2.1

mafuicomponents-1.2.1

Parser-3.0.0

perflib-1.1.5

Request-3.0.0

sap-e2etrace-2.3.3.13

sqlcipher-android-2.1.1

3. In MainActivity.java add below line to load our HTML .

super.loadUrl("file:///android_asset/www/index.html");

For more details about Phonegap development go through below link.

PhoneGap API Documentation

Now our aim is to call java code from JavaScript

4. create push.js file and following code, after include this file in your HTML, javascript section

var PushNotif= function(){};

cordova.addConstructor(function() {

    cordova.addPlugin("pushnotif", new PushNotif());

});

PushNotif.prototype.send = function (message){

cordova.exec(function(){  },

    function(){   },

    'PushNotif',

    'sendPush',

    [message]);

}

function sendFeedback(){

   window.PushNotif.prototype.send("My message body");}

5.Add the plugin in res/xml/config.xml  <plugin name="PushNotif" value="com.packagename.PushNotif"/>

6. To call java code from JavaScript, use

window.PushNotif.prototype.send(body);

if you want to send any data to java, you can fill in body variable.

7. Create a java file in your package folder (src) with name PushNotif.java

"Here we are writing about, register the android device with SMP and enabling push notification.

Please find the attached sample file "PushNotif.java " for code.

8. Please add the GCMIntentService.java to your project and add GCMIntentService.txt code.

Note, here you need to change the GCM_SENDER_ID .

and add ConnectivityConstants.java to your project

Now we are done with our application creation. Now install the apk file in android device.

If everything is successful, you should see a new registration in SMP registrations.

By using PostMan Plugin POST Method, you should able to send the data(enjoy) to your android device.

http://xxxxxx:8080/Notification/y_VehicleApproval?data=enjoy

Now our aim is How to call POST method call using ABAP

1. create a HTTP Connections to External Server in SM59 , Give the URL of SMP and SMP credentials

2. find the place where we need to send notification to device( means on which status, Like If discount is more than 10k)

3. write below code to send notification

CALL METHOD cl_http_client=>create_by_destination

     EXPORTING

       destination              = '  'HTTP Connections to External Server

     IMPORTING

       client                   = client

     EXCEPTIONS

       destination_not_found    = 1

       internal_error           = 2

       argument_not_found       = 3

       destination_no_authority = 4

       plugin_not_active        = 5

       OTHERS                   = 6.

* set http method GET

   CALL METHOD client->request->set_method(

     if_http_request=>co_request_method_post ).

* set protocol version

   client->request->set_version(

   if_http_request=>co_protocol_version_1_0 ).

* set request uri (/<path>[?<querystring>])

   concatenate '/Notification/' connid into l_url.  // in connid give the registration id, which got registered in SMP

   cl_http_utility=>set_request_uri( request = client->request

   uri  = l_url ).

   CALL METHOD client->request->set_header_field

     EXPORTING

       name  = 'X-SMP-GCM-DATA'

       value = data.

*  * Send

   DATA:timeout TYPE i.

   timeout = 100000000.

   CALL METHOD client->send

     EXPORTING

       timeout                    = timeout

     EXCEPTIONS

       http_communication_failure = 1

       http_invalid_state         = 2

       http_processing_failed     = 3

       OTHERS                     = 4.

   IF sy-subrc <> 0.

     DATA:errortext TYPE string,

           subrc TYPE i.

     CALL METHOD client->get_last_error

       IMPORTING

         code    = subrc

         message = errortext.

     WRITE: / 'communication_error( send )',

     / 'code: ', subrc, 'message: ', errortext.

     EXIT.

   ENDIF.

* receive

   CALL METHOD client->receive

     EXCEPTIONS

       http_communication_failure = 1

       http_invalid_state         = 2

       http_processing_failed     = 3

       OTHERS                     = 4.

   IF sy-subrc <> 0.

     CALL METHOD client->get_last_error

       IMPORTING

         code    = subrc

         message = errortext.

     WRITE: 'communication_error( receive )',

     'code: ', subrc, 'message: ', errortext to message.

     EXIT.

   ELSE.

     WRITE:'Notification Sent' to message.

   ENDIF.

* * close

   CALL METHOD client->close

     EXCEPTIONS

       http_invalid_state = 1

       OTHERS             = 2.