ail-2 Add logic for getting OS information

AndroidInfoLib/src/main/java/com/udfsoft/androidinfo/lib/DeviceInformationFactory.kt

@@ -2,11 +2,14 @@ package com.udfsoft.androidinfo.lib
 
 import android.os.Build
 import androidx.annotation.WorkerThread
+import com.udfsoft.androidinfo.lib.command.GetOSInformationCommand
 import com.udfsoft.androidinfo.lib.entity.*
 
 @WorkerThread
 object DeviceInformationFactory : DeviceInformation {
 
+    private const val LOG_TAG = "DeviceInformation"
+
     override fun getGeneralInformation() = GeneralInformation(Build.BRAND, Build.MODEL)
 
     override fun getDesignInformation(): DesignInformation {
@@ -26,7 +29,8 @@ object DeviceInformationFactory : DeviceInformation {
     }
 
     override fun getOSInformation(): OSInformation {
-        TODO("Not yet implemented")
+        val getOSInformationCommand = GetOSInformationCommand()
+        return getOSInformationCommand(Unit)
     }
 
     override fun getCPUInformation(): CPUInformation {

AndroidInfoLib/src/main/java/com/udfsoft/androidinfo/lib/command/CommandInterface.kt

@@ -0,0 +1,6 @@
+package com.udfsoft.androidinfo.lib.command
+
+interface CommandInterface<P, R> {
+
+    operator fun invoke(param: P): R
+}

AndroidInfoLib/src/main/java/com/udfsoft/androidinfo/lib/command/GetOSInformationCommand.kt

@@ -0,0 +1,18 @@
+package com.udfsoft.androidinfo.lib.command
+
+import android.os.Build
+import com.udfsoft.androidinfo.lib.entity.OSInformation
+
+class GetOSInformationCommand : CommandInterface<Unit, OSInformation> {
+
+    override fun invoke(param: Unit): OSInformation {
+        val manufacturer = Build.MANUFACTURER
+        val version = Build.VERSION.SDK_INT
+        val versionRelease = Build.VERSION.RELEASE
+        val incremental = Build.VERSION.INCREMENTAL
+        val codeName = Build.VERSION.CODENAME
+        val linuxVersion = System.getProperty("os.version")
+
+        return OSInformation(manufacturer, version, versionRelease, incremental, codeName, linuxVersion)
+    }
+}

AndroidInfoLib/src/main/java/com/udfsoft/androidinfo/lib/entity/OSInformation.kt

@@ -1,5 +1,10 @@
 package com.udfsoft.androidinfo.lib.entity
 
-class OSInformation {
-
-}
+data class OSInformation(
+    val manufacturer: String,
+    val version: Int,
+    val versionRelease: String,
+    val incremental: String,
+    val codeName: String,
+    val linuxVersion: String?
+)

sample/src/main/java/com/udfsoft/androidinfo/sample/ui/main/MainFragment.kt

@@ -21,6 +21,10 @@ class MainFragment : Fragment(R.layout.fragment_main) {
         viewModel.getGeneralInformationLiveData().observe(viewLifecycleOwner) {
             Log.d(TAG, "GeneralInformation: $it")
         }
+
+        viewModel.getOSInformationLiveData().observe(viewLifecycleOwner) {
+            Log.d(TAG, "OSInformation: $it")
+        }
     }
 
     companion object {

sample/src/main/java/com/udfsoft/androidinfo/sample/ui/main/MainViewModel.kt

@@ -5,6 +5,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.udfsoft.androidinfo.lib.DeviceInformationFactory
 import com.udfsoft.androidinfo.lib.entity.GeneralInformation
+import com.udfsoft.androidinfo.lib.entity.OSInformation
 import com.udfsoft.androidinfo.sample.util.toLiveData
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -13,9 +14,14 @@ class MainViewModel : ViewModel() {
 
     private val generalInformationLiveData = MutableLiveData<GeneralInformation>()
 
-    fun loadInformation() = viewModelScope.launch(Dispatchers.Main) {
+    private val osInformationLiveData = MutableLiveData<OSInformation>()
+
+    fun loadInformation() = viewModelScope.launch(Dispatchers.IO) {
         generalInformationLiveData.postValue(DeviceInformationFactory.getGeneralInformation())
+        osInformationLiveData.postValue(DeviceInformationFactory.getOSInformation())
     }
 
     fun getGeneralInformationLiveData() = generalInformationLiveData.toLiveData()
+
+    fun getOSInformationLiveData() = osInformationLiveData.toLiveData()
 }