move to firestore

cloud-anchors/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

cloud-anchors/app/build.gradle

@@ -37,7 +37,7 @@ dependencies {
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
     implementation "com.google.ar.sceneform.ux:sceneform-ux:1.6.0"
     implementation 'com.google.firebase:firebase-core:16.0.6'
-    implementation 'com.google.firebase:firebase-database:16.0.5'
+    implementation 'com.google.firebase:firebase-firestore:17.1.5'
 }
 
 

cloud-anchors/app/src/main/java/it/norangeb/cloudanchors/CloudAnchorsHelper.kt

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2019, norangebit
+ *
+ * This file is part of cloud-anchors.
+ *
+ *      cloud-anchors is free software: you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation, either version 3 of the License, or
+ *      (at your option) any later version.
+ *
+ *      cloud-anchors is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with cloud-anchors.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+package it.norangeb.cloudanchors
+
+import com.google.firebase.firestore.FirebaseFirestore
+import com.google.firebase.firestore.SetOptions
+
+class CloudAnchorsHelper {
+    private val fireStoreDb = FirebaseFirestore.getInstance()
+    private var nextCode = 0
+
+    init {
+        fireStoreDb.collection(COLLECTION)
+            .document(DOCUMENT)
+            .get()
+            .addOnSuccessListener {
+                val nCode = it.data?.get(NEXT_CODE) ?: return@addOnSuccessListener
+                nextCode = nCode.toString().toInt()
+            }
+    }
+
+    fun getShortCode(cloudAnchorId: String): Int {
+        fireStoreDb.collection(COLLECTION)
+            .document(DOCUMENT)
+            .set(
+                mapOf(Pair(nextCode.toString(), cloudAnchorId)),
+                SetOptions.merge())
+        uploadNextCode(nextCode+1)
+        return nextCode++
+    }
+
+    private fun uploadNextCode(nextCode: Int) {
+        fireStoreDb.collection(COLLECTION)
+            .document(DOCUMENT)
+            .set(
+                mapOf(Pair(NEXT_CODE, nextCode)),
+                SetOptions.merge()
+            )
+    }
+
+    fun getCloudAnchorId(
+        shortCode: Int,
+        onSuccess: (String) -> Unit
+    ) {
+        fireStoreDb.collection(COLLECTION)
+            .document(DOCUMENT)
+            .get()
+            .addOnSuccessListener {
+                val x = it.data?.get(shortCode.toString()) as String
+                onSuccess(x)
+            }
+    }
+
+    companion object {
+        private const val COLLECTION = "short_codes"
+        private const val DOCUMENT = "short_codes_doc"
+        private const val NEXT_CODE = "next_short_code"
+    }
+}

cloud-anchors/app/src/main/java/it/norangeb/cloudanchors/MainActivity.kt

@@ -36,8 +36,8 @@ class MainActivity : AppCompatActivity() {
     private val TAG = MainActivity::class.java.canonicalName
 
     private lateinit var arFragment: CloudArFragment
-    private lateinit var storageManager: StorageManager
+    private val cloudAnchorsHelper = CloudAnchorsHelper()
-    private var cloudAnchorState = CloudAnchorState.LOCAL
+    private var cloudAnchorState = CloudAnchorState.NONE
     private var cloudAnchor: Anchor? = null
         set(value) {
             field?.detach()
@@ -50,8 +50,6 @@ class MainActivity : AppCompatActivity() {
         if (!checkIsSupportedDeviceOrFinish(this, TAG))
             return
 
-        storageManager = StorageManager(this)
-
         setContentView(R.layout.activity_main)
 
         arFragment = supportFragmentManager.findFragmentById(R.id.ar_fragment) as CloudArFragment
@@ -63,7 +61,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun addModel(hitResult: HitResult, plane: Plane, motionEvent: MotionEvent) {
-        if (cloudAnchorState != CloudAnchorState.LOCAL)
+        if (cloudAnchorState != CloudAnchorState.NONE)
             return
 
         cloudAnchor = arFragment.arSceneView.session
@@ -90,7 +88,7 @@ class MainActivity : AppCompatActivity() {
 
         if (cloudState.isError) {
             toastError()
-            cloudAnchorState = CloudAnchorState.LOCAL
+            cloudAnchorState = CloudAnchorState.NONE
             return
         }
 
@@ -98,29 +96,25 @@ class MainActivity : AppCompatActivity() {
             return
 
         if (cloudAnchorState == CloudAnchorState.HOSTING)
-            checkHosting(cloudState)
+            checkHosting()
         else
-            checkResolving(cloudState)
+            checkResolving()
     }
 
-    private fun checkResolving(state: Anchor.CloudAnchorState) {
+    private fun checkResolving() {
         Toast.makeText(this, "Anchor resolved!", Toast.LENGTH_LONG)
             .show()
         cloudAnchorState = CloudAnchorState.RESOLVED
     }
 
-    private fun checkHosting(state: Anchor.CloudAnchorState) {
+    private fun checkHosting() {
-        storageManager.nextShortCode { shortCode ->
+        val cAnchor = cloudAnchor ?: return
-            if (shortCode == null) {
-                toastError()
-                return@nextShortCode
-            }
-            storageManager.storeUsingShortCode(shortCode, cloudAnchor?.cloudAnchorId)
 
-            Toast.makeText(this, "Anchor hosted with code $shortCode", Toast.LENGTH_LONG)
+        val shortCode = cloudAnchorsHelper.getShortCode(cAnchor.cloudAnchorId)
-                .show()
+
-            Log.d("NORANGEBIT", "$shortCode")
+        Toast.makeText(this, "Anchor hosted with code $shortCode", Toast.LENGTH_LONG)
-        }
+            .show()
+        Log.d("NORANGEBIT", "$shortCode")
 
         cloudAnchorState = CloudAnchorState.HOSTED
     }
@@ -130,8 +124,8 @@ class MainActivity : AppCompatActivity() {
             .show()
 
     private fun onResolveOkPressed(dialogValue: String) {
-        val shortCode = Integer.parseInt(dialogValue)
+        val shortCode = dialogValue.toInt()
-        storageManager.getCloudAnchorID(shortCode) {
+        cloudAnchorsHelper.getCloudAnchorId(shortCode) {
             cloudAnchor = arFragment.arSceneView.session
                 .resolveCloudAnchor(it)
 
@@ -146,7 +140,7 @@ class MainActivity : AppCompatActivity() {
     fun onClearClick(view: View) {
         cloudAnchor?.detach()
         cloudAnchor = null
-        cloudAnchorState = CloudAnchorState.LOCAL
+        cloudAnchorState = CloudAnchorState.NONE
     }
 
     fun onResolveClick(view: View) {

cloud-anchors/app/src/main/java/it/norangeb/cloudanchors/StorageManager.java

@@ -1,98 +0,0 @@
-/**
- * This class is made by Google
- *
- * visit https://codelabs.developers.google.com/codelabs/arcore-cloud-anchors/#4
- */
-
-package it.norangeb.cloudanchors;
-
-import android.content.Context;
-import android.util.Log;
-import com.google.firebase.FirebaseApp;
-import com.google.firebase.database.*;
-
-/** Helper class for Firebase storage of cloud anchor IDs. */
-class StorageManager {
-
-    /** Listener for a new Cloud Anchor ID from the Firebase Database. */
-    interface CloudAnchorIdListener {
-        void onCloudAnchorIdAvailable(String cloudAnchorId);
-    }
-
-    /** Listener for a new short code from the Firebase Database. */
-    interface ShortCodeListener {
-        void onShortCodeAvailable(Integer shortCode);
-    }
-
-    private static final String TAG = StorageManager.class.getName();
-    private static final String KEY_ROOT_DIR = "shared_anchor_codelab_root";
-    private static final String KEY_NEXT_SHORT_CODE = "next_short_code";
-    private static final String KEY_PREFIX = "anchor;";
-    private static final int INITIAL_SHORT_CODE = 142;
-    private final DatabaseReference rootRef;
-
-    StorageManager(Context context) {
-        FirebaseApp firebaseApp = FirebaseApp.initializeApp(context);
-        rootRef = FirebaseDatabase.getInstance(firebaseApp).getReference().child(KEY_ROOT_DIR);
-        DatabaseReference.goOnline();
-    }
-
-    /** Gets a new short code that can be used to store the anchor ID. */
-    void nextShortCode(ShortCodeListener listener) {
-        // Run a transaction on the node containing the next short code available. This increments the
-        // value in the database and retrieves it in one atomic all-or-nothing operation.
-        rootRef
-                .child(KEY_NEXT_SHORT_CODE)
-                .runTransaction(
-                        new Transaction.Handler() {
-                            @Override
-                            public Transaction.Result doTransaction(MutableData currentData) {
-                                Integer shortCode = currentData.getValue(Integer.class);
-                                if (shortCode == null) {
-                                    shortCode = INITIAL_SHORT_CODE - 1;
-                                }
-                                currentData.setValue(shortCode + 1);
-                                return Transaction.success(currentData);
-                            }
-
-                            @Override
-                            public void onComplete(
-                                    DatabaseError error, boolean committed, DataSnapshot currentData) {
-                                if (!committed) {
-                                    Log.e(TAG, "Firebase Error", error.toException());
-                                    listener.onShortCodeAvailable(null);
-                                } else {
-                                    listener.onShortCodeAvailable(currentData.getValue(Integer.class));
-                                }
-                            }
-                        });
-    }
-
-    /** Stores the cloud anchor ID in the configured Firebase Database. */
-    void storeUsingShortCode(int shortCode, String cloudAnchorId) {
-        rootRef.child(KEY_PREFIX + shortCode).setValue(cloudAnchorId);
-    }
-
-    /**
-     * Retrieves the cloud anchor ID using a short code. Returns an empty string if a cloud anchor ID
-     * was not stored for this short code.
-     */
-    void getCloudAnchorID(int shortCode, CloudAnchorIdListener listener) {
-        rootRef
-                .child(KEY_PREFIX + shortCode)
-                .addListenerForSingleValueEvent(
-                        new ValueEventListener() {
-                            @Override
-                            public void onDataChange(DataSnapshot dataSnapshot) {
-                                listener.onCloudAnchorIdAvailable(String.valueOf(dataSnapshot.getValue()));
-                            }
-
-                            @Override
-                            public void onCancelled(DatabaseError error) {
-                                Log.e(TAG, "The database operation for getCloudAnchorID was cancelled.",
-                                        error.toException());
-                                listener.onCloudAnchorIdAvailable(null);
-                            }
-                        });
-    }
-}

cloud-anchors/app/src/main/java/it/norangeb/cloudanchors/Util.kt

@@ -29,12 +29,8 @@ import android.os.Build
 import android.util.Log
 import android.widget.Toast
 import com.google.ar.core.Anchor
-import com.google.ar.core.Session
-import com.google.ar.core.Trackable
-import com.google.ar.core.TrackingState
 import com.google.ar.sceneform.AnchorNode
 import com.google.ar.sceneform.Node
-import com.google.ar.sceneform.math.Vector3
 import com.google.ar.sceneform.rendering.*
 import com.google.ar.sceneform.ux.ArFragment
 import com.google.ar.sceneform.ux.TransformableNode
@@ -62,10 +58,6 @@ fun checkIsSupportedDeviceOrFinish(activity: Activity, tag: String): Boolean {
     return true
 }
 
-operator fun ArFragment.invoke(λ: ArFragment.() -> Unit) = λ()
-
-fun isTrackig(trackable: Trackable) = trackable.trackingState == TrackingState.TRACKING
-
 fun buildRenderable(
     context: Context,
     model: Uri,
@@ -81,55 +73,6 @@ fun buildRenderable(
         }
 }
 
-fun buildMaterial(
-    context: Context,
-    color: Color,
-    onSuccess: (material: Material) -> Unit
-) {
-    MaterialFactory
-        .makeOpaqueWithColor(context, color)
-        .thenAccept(onSuccess)
-}
-
-fun changeColorOfMaterial(
-    context: Context,
-    color: Color,
-    renderable: Renderable
-) {
-    val newColor = buildMaterial(context, color) {
-        renderable.material = it
-    }
-}
-
-
-/**
-fun buildRenderable(
-    context: Context,
-    model: RenderableSource,
-    modelUri: Uri,
-    onSuccess: (renderable: Renderable) -> Unit
-) {
-    ModelRenderable.builder()
-        .setRegistryId(modelUri)
-        .setSource(context, model)
-        .build()
-        .thenAccept(onSuccess)
-        .exceptionally {
-            Log.e("SCENEFORM", "unable to load model", it)
-            return@exceptionally null
-        }
-}
-
-fun fetchModel(
-    context: Context,
-    source: Uri
-) : RenderableSource {
-    return RenderableSource.builder()
-        .setSource(context, source, RenderableSource.SourceType.GLTF2)
-        .setRecenterMode(RenderableSource.RecenterMode.ROOT)
-        .build()
-}
-*/
 
 fun addTransformableNodeToScene(arFragment: ArFragment, anchor: Anchor, renderable: Renderable): Node {
     val anchorNode = AnchorNode(anchor)
@@ -142,7 +85,7 @@ fun addTransformableNodeToScene(arFragment: ArFragment, anchor: Anchor, renderab
 }
 
 enum class CloudAnchorState {
-    LOCAL,
+    NONE,
     HOSTING,
     HOSTED,
     RESOLVING,