Offload HAL Service: Chre Interface factory

In order to make Offload Server testable, introduce a factory that will
create the Chre Interface object. This is a part of the dependency
injection framework to make OffloadServer testable.

Bug: 32842314
Test: VTS
Change-Id: I14794981a7b75b376462cb3fe8c6fb34df66a1ae

wifi_offload/Android.bp

@@ -22,6 +22,7 @@ cc_binary {
         "chre_constants.cpp",
         "chre_interface.cpp",
         "offload_server.cpp",
+        "chre_interface_factory.cpp",
     ],
     cflags: ["-Wall", "-Wextra"],
     shared_libs: [

wifi_offload/chre_interface_factory.cpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+#include "chre_interface_factory.h"
+
+#include <cstdint>
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace offload {
+namespace V1_0 {
+namespace implementation {
+
+ChreInterface* ChreInterfaceFactory::getChreInterface(ChreInterfaceCallbacks* serverCallbacks) {
+    return new ChreInterface(serverCallbacks);
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace offload
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android

wifi_offload/chre_interface_factory.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+#ifndef WIFI_OFFLOAD_CHRE_INTERFACE_UTILS_H_
+#define WIFI_OFFLOAD_CHRE_INTERFACE_UTILS_H_
+
+#include "chre_interface.h"
+#include "chre_interface_callbacks.h"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace offload {
+namespace V1_0 {
+namespace implementation {
+
+class ChreInterfaceFactory {
+  public:
+    ChreInterfaceFactory() = default;
+    virtual ~ChreInterfaceFactory() = default;
+    virtual ChreInterface* getChreInterface(ChreInterfaceCallbacks* server);
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace offload
+}  // namespace wifi
+}  // namespace hardware
+}  // namespace android
+
+#endif  // WIFI_OFFLOAD_CHRE_INTERFACE_UTILS_H_