Improved file copy code by using coroutines

app/src/main/java/org/linphone/activities/main/MainActivity.kt

@@ -30,12 +30,14 @@ import android.view.inputmethod.InputMethodManager
 import androidx.databinding.DataBindingUtil
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
 import androidx.navigation.NavController
 import androidx.navigation.NavDestination
 import androidx.navigation.findNavController
 import com.google.android.material.snackbar.Snackbar
 import java.io.UnsupportedEncodingException
 import java.net.URLDecoder
+import kotlinx.coroutines.*
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
 import org.linphone.R
@@ -147,11 +149,15 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
     private fun handleIntentParams(intent: Intent) {
         when (intent.action) {
             Intent.ACTION_SEND -> {
+                lifecycleScope.launch {
                     handleSendImage(intent)
                 }
+            }
             Intent.ACTION_SEND_MULTIPLE -> {
+                lifecycleScope.launch {
                     handleSendMultipleImages(intent)
                 }
+            }
             Intent.ACTION_VIEW -> {
                 if (intent.type == AppUtils.getString(R.string.linphone_address_mime_type)) {
                     val contactUri = intent.data
@@ -218,14 +224,19 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
         }
     }
 
-    private fun handleSendImage(intent: Intent) {
+    private suspend fun handleSendImage(intent: Intent) {
         (intent.getParcelableExtra<Parcelable>(Intent.EXTRA_STREAM) as? Uri)?.let {
             val list = arrayListOf<String>()
-            val path = FileUtils.getFilePath(this, it)
+            coroutineScope {
+                val deferred = async {
+                    FileUtils.getFilePath(this@MainActivity, it)
+                }
+                val path = deferred.await()
                 if (path != null) {
                     list.add(path)
                     Log.i("[Main Activity] Found single file to share: $path")
                 }
+            }
             sharedViewModel.filesToShare.value = list
 
             val deepLink = "linphone-android://chat/"
@@ -234,15 +245,21 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
         }
     }
 
-    private fun handleSendMultipleImages(intent: Intent) {
+    private suspend fun handleSendMultipleImages(intent: Intent) {
         intent.getParcelableArrayListExtra<Parcelable>(Intent.EXTRA_STREAM)?.let {
             val list = arrayListOf<String>()
+            coroutineScope {
+                val deferred = arrayListOf<Deferred<String?>>()
                 for (parcelable in it) {
                     val uri = parcelable as Uri
-                val path = FileUtils.getFilePath(this, uri)
+                    deferred.add(async { FileUtils.getFilePath(this@MainActivity, uri) })
+                }
+                val paths = deferred.awaitAll()
+                for (path in paths) {
                     Log.i("[Main Activity] Found file to share: $path")
                     if (path != null) list.add(path)
                 }
+            }
             sharedViewModel.filesToShare.value = list
 
             val deepLink = "linphone-android://chat/"

app/src/main/java/org/linphone/activities/main/chat/fragments/DetailChatRoomFragment.kt

@@ -35,12 +35,14 @@ import androidx.appcompat.view.menu.MenuPopupHelper
 import androidx.core.content.FileProvider
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
 import androidx.navigation.Navigation
 import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import java.io.File
 import kotlinx.android.synthetic.main.tabs_fragment.*
+import kotlinx.coroutines.launch
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
 import org.linphone.R
@@ -299,8 +301,8 @@ class DetailChatRoomFragment : MasterFragment() {
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         if (resultCode == Activity.RESULT_OK) {
+            lifecycleScope.launch {
                 var fileToUploadPath: String? = null
-
                 val temporaryFileUploadPath = chatSendingViewModel.temporaryFileUploadPath
                 if (temporaryFileUploadPath != null) {
                     if (data != null) {
@@ -336,6 +338,7 @@ class DetailChatRoomFragment : MasterFragment() {
                 }
             }
         }
+    }
 
     private fun enterEditionMode() {
         listSelectionViewModel.isEditionEnabled.value = true

app/src/main/java/org/linphone/activities/main/chat/viewmodels/ChatMessageViewModel.kt

@@ -22,6 +22,8 @@ package org.linphone.activities.main.chat.viewmodels
 import android.os.CountDownTimer
 import android.text.Spanned
 import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.launch
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
 import org.linphone.R
@@ -205,6 +207,7 @@ class ChatMessageViewModel(
     }
 
     private fun addContentToMediaStore(content: Content) {
+        viewModelScope.launch {
             when (content.type) {
                 "image" -> {
                     if (Compatibility.addImageToMediaStore(coreContext.context, content)) {
@@ -232,4 +235,5 @@ class ChatMessageViewModel(
                 }
             }
         }
+    }
 }

app/src/main/java/org/linphone/activities/main/contact/fragments/ContactEditorFragment.kt

@@ -31,8 +31,10 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import java.io.File
+import kotlinx.coroutines.launch
 import org.linphone.R
 import org.linphone.activities.main.MainActivity
 import org.linphone.activities.main.contact.viewmodels.*
@@ -130,6 +132,7 @@ class ContactEditorFragment : Fragment() {
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         if (resultCode == Activity.RESULT_OK) {
+            lifecycleScope.launch {
                 var fileToUploadPath: String? = null
 
                 val temporaryFileUploadPath = temporaryPicturePath
@@ -167,6 +170,7 @@ class ContactEditorFragment : Fragment() {
                 }
             }
         }
+    }
 
     private fun pickFile() {
         val cameraIntents = ArrayList<Intent>()

app/src/main/java/org/linphone/compatibility/Api21Compatibility.kt

@@ -57,7 +57,7 @@ class Api21Compatibility {
             vibrator.vibrate(pattern, 1)
         }
 
-        fun addImageToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addImageToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_PICTURES}/$appName"
@@ -88,7 +88,7 @@ class Api21Compatibility {
             return copyOk
         }
 
-        fun addVideoToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addVideoToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_MOVIES}/$appName"
@@ -120,7 +120,7 @@ class Api21Compatibility {
             return copyOk
         }
 
-        fun addAudioToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addAudioToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_MUSIC}/$appName"

app/src/main/java/org/linphone/compatibility/Api29Compatibility.kt

@@ -33,7 +33,7 @@ import org.linphone.utils.FileUtils
 @TargetApi(29)
 class Api29Compatibility {
     companion object {
-        fun addImageToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addImageToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_PICTURES}/$appName"
@@ -70,7 +70,7 @@ class Api29Compatibility {
             return copyOk
         }
 
-        fun addVideoToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addVideoToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_MOVIES}/$appName"
@@ -108,7 +108,7 @@ class Api29Compatibility {
             return copyOk
         }
 
-        fun addAudioToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addAudioToMediaStore(context: Context, content: Content): Boolean {
             val filePath = content.filePath
             val appName = AppUtils.getString(R.string.app_name)
             val relativePath = "${Environment.DIRECTORY_MUSIC}/$appName"

app/src/main/java/org/linphone/compatibility/Compatibility.kt

@@ -115,21 +115,21 @@ class Compatibility {
             // TODO Use removeLongLivedShortcuts() starting Android R (API 30)
         }
 
-        fun addImageToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addImageToMediaStore(context: Context, content: Content): Boolean {
             if (Version.sdkAboveOrEqual(Version.API29_ANDROID_10)) {
                 return Api29Compatibility.addImageToMediaStore(context, content)
             }
             return Api21Compatibility.addImageToMediaStore(context, content)
         }
 
-        fun addVideoToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addVideoToMediaStore(context: Context, content: Content): Boolean {
             if (Version.sdkAboveOrEqual(Version.API29_ANDROID_10)) {
                 return Api29Compatibility.addVideoToMediaStore(context, content)
             }
             return Api21Compatibility.addVideoToMediaStore(context, content)
         }
 
-        fun addAudioToMediaStore(context: Context, content: Content): Boolean {
+        suspend fun addAudioToMediaStore(context: Context, content: Content): Boolean {
             if (Version.sdkAboveOrEqual(Version.API29_ANDROID_10)) {
                 return Api29Compatibility.addAudioToMediaStore(context, content)
             }

app/src/main/java/org/linphone/utils/FileUtils.kt

@@ -26,6 +26,10 @@ import android.provider.OpenableColumns
 import java.io.*
 import java.text.SimpleDateFormat
 import java.util.*
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.withContext
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.core.tools.Log
 
@@ -109,7 +113,7 @@ class FileUtils {
             }
         }
 
-        fun getFilePath(context: Context, uri: Uri): String? {
+        suspend fun getFilePath(context: Context, uri: Uri): String? {
             var result: String? = null
             val name: String = getNameFromUri(uri, context)
 
@@ -123,13 +127,16 @@ class FileUtils {
                             " to local file " +
                             localFile.absolutePath
                 )
-                if (copyToFile(remoteFile, localFile)) {
+                coroutineScope {
+                    val deferred = async { copyToFile(remoteFile, localFile) }
+                    if (deferred.await()) {
                         Log.i("[File Utils] Copy successful")
                         result = localFile.absolutePath
                     } else {
                         Log.e("[File Utils] Copy failed")
                     }
                     remoteFile?.close()
+                }
             } catch (e: IOException) {
                 Log.e("[File Utils] getFilePath exception: ", e)
             }
@@ -158,7 +165,7 @@ class FileUtils {
             return name
         }
 
-        fun copyFileTo(filePath: String, outputStream: OutputStream?): Boolean {
+        suspend fun copyFileTo(filePath: String, outputStream: OutputStream?): Boolean {
             if (outputStream == null) {
                 Log.e("[File Utils] Can't copy file $filePath to given null output stream")
                 return false
@@ -171,12 +178,14 @@ class FileUtils {
             }
 
             try {
+                withContext(Dispatchers.IO) {
                     val inputStream = FileInputStream(file)
                     val buffer = ByteArray(4096)
                     var bytesRead: Int
                     while (inputStream.read(buffer).also { bytesRead = it } >= 0) {
                         outputStream.write(buffer, 0, bytesRead)
                     }
+                }
                 return true
             } catch (e: IOException) {
                 Log.e("[File Utils] copyFileTo exception: $e")
@@ -184,9 +193,10 @@ class FileUtils {
             return false
         }
 
-        private fun copyToFile(inputStream: InputStream?, destFile: File?): Boolean {
+        private suspend fun copyToFile(inputStream: InputStream?, destFile: File?): Boolean {
             if (inputStream == null || destFile == null) return false
             try {
+                withContext(Dispatchers.IO) {
                     FileOutputStream(destFile).use { out ->
                         val buffer = ByteArray(4096)
                         var bytesRead: Int
@@ -194,6 +204,7 @@ class FileUtils {
                             out.write(buffer, 0, bytesRead)
                         }
                     }
+                }
                 return true
             } catch (e: IOException) {
                 Log.e("[File Utils] copyToFile exception: $e")