Add a new system service for blob store management.

This change adds a bare-bones system service, implementation will follow
later.

Bug: 143559646
Test: atest cts/tests/BlobStore/src/com/android/cts/blob/BlobStoreManagerTest.java
Change-Id: Idf21dfcd11dd32a42b62c6ad965d6f5ad7eed1b4

4 files changed, 135 insertions, 0 deletions

diff --git a/apex/blobstore/framework/Android.bp b/apex/blobstore/framework/Android.bp
new file mode 100644
index 000000000000..24693511117c
--- /dev/null
+++ b/apex/blobstore/framework/Android.bp
@@ -0,0 +1,40 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+filegroup {
+    name: "framework-blobstore-sources",
+    srcs: [
+        "java/**/*.java",
+        "java/**/*.aidl"
+    ],
+    path: "java",
+}
+
+java_library {
+    name: "blobstore-framework",
+    installable: false,
+    compile_dex: true,
+    sdk_version: "core_platform",
+    srcs: [
+        ":framework-blobstore-sources",
+    ],
+    aidl: {
+        export_include_dirs: [
+            "java",
+        ],
+    },
+    libs: [
+        "framework-minus-apex",
+    ],
+}
diff --git a/apex/blobstore/framework/java/android/app/blob/BlobStoreManager.java b/apex/blobstore/framework/java/android/app/blob/BlobStoreManager.java
new file mode 100644
index 000000000000..1ed188e69881
--- /dev/null
+++ b/apex/blobstore/framework/java/android/app/blob/BlobStoreManager.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.app.blob;
+
+import android.annotation.SystemService;
+import android.content.Context;
+
+/**
+ * This class provides access to the blob store maintained by the system.
+ *
+ * Apps can publish data blobs which might be useful for other apps on the device to be
+ * maintained by the system and apps that would like to access these data blobs can do so
+ * by addressing them via their cryptographically secure hashes.
+ *
+ * TODO: make this public once the APIs are added.
+ * @hide
+ */
+@SystemService(Context.BLOB_STORE_SERVICE)
+public class BlobStoreManager {
+    private final Context mContext;
+    private final IBlobStoreManager mService;
+
+    /** @hide */
+    public BlobStoreManager(Context context, IBlobStoreManager service) {
+        mContext = context;
+        mService = service;
+    }
+}
diff --git a/apex/blobstore/framework/java/android/app/blob/BlobStoreManagerFrameworkInitializer.java b/apex/blobstore/framework/java/android/app/blob/BlobStoreManagerFrameworkInitializer.java
new file mode 100644
index 000000000000..6e6d6aee60fa
--- /dev/null
+++ b/apex/blobstore/framework/java/android/app/blob/BlobStoreManagerFrameworkInitializer.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.app.blob;
+
+import android.app.SystemServiceRegistry;
+import android.content.Context;
+
+/**
+ * This is where the BlobStoreManagerService wrapper is registered.
+ *
+ * @hide
+ */
+public class BlobStoreManagerFrameworkInitializer {
+    /** Register the BlobStoreManager wrapper class */
+    public static void initialize() {
+        SystemServiceRegistry.registerCachedService(
+                Context.BLOB_STORE_SERVICE, BlobStoreManager.class,
+                (context, service) ->
+                        new BlobStoreManager(context, IBlobStoreManager.Stub.asInterface(service)));
+    }
+}
diff --git a/apex/blobstore/framework/java/android/app/blob/IBlobStoreManager.aidl b/apex/blobstore/framework/java/android/app/blob/IBlobStoreManager.aidl
new file mode 100644
index 000000000000..00c1ed4daa27
--- /dev/null
+++ b/apex/blobstore/framework/java/android/app/blob/IBlobStoreManager.aidl
@@ -0,0 +1,20 @@
+/**
+ * Copyright 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.app.blob;
+
+/** {@hide} */
+interface IBlobStoreManager {
+}
\ No newline at end of file