1 files changed, 128 insertions, 0 deletions
diff --git a/services/core/java/com/android/server/location/FusedProxy.java b/services/core/java/com/android/server/location/FusedProxy.java
new file mode 100644
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+++ b/services/core/java/com/android/server/location/FusedProxy.java
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+/*
+ * Copyright (C) 2013 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 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 com.android.server.location;
+
+import com.android.server.ServiceWatcher;
+
+import android.Manifest;
+import android.content.Context;
+import android.hardware.location.IFusedLocationHardware;
+import android.location.IFusedProvider;
+import android.os.Handler;
+import android.os.RemoteException;
+import android.util.Log;
+
+/**
+ * Proxy that helps bind GCore FusedProvider implementations to the Fused Hardware instances.
+ *
+ * @hide
+ */
+public final class FusedProxy {
+    private final String TAG = "FusedProxy";
+    private final ServiceWatcher mServiceWatcher;
+    private final FusedLocationHardwareSecure mLocationHardware;
+
+    /**
+     * Constructor of the class.
+     * This is private as the class follows a factory pattern for construction.
+     *
+     * @param context           The context needed for construction.
+     * @param handler           The handler needed for construction.
+     * @param locationHardware  The instance of the Fused location hardware assigned to the proxy.
+     */
+    private FusedProxy(
+            Context context,
+            Handler handler,
+            IFusedLocationHardware locationHardware,
+            int overlaySwitchResId,
+            int defaultServicePackageNameResId,
+            int initialPackageNameResId) {
+        mLocationHardware = new FusedLocationHardwareSecure(
+                locationHardware,
+                context,
+                Manifest.permission.LOCATION_HARDWARE);
+        Runnable newServiceWork = new Runnable() {
+            @Override
+            public void run() {
+                bindProvider(mLocationHardware);
+            }
+        };
+
+        // prepare the connection to the provider
+        mServiceWatcher = new ServiceWatcher(
+                context,
+                TAG,
+                "com.android.location.service.FusedProvider",
+                overlaySwitchResId,
+                defaultServicePackageNameResId,
+                initialPackageNameResId,
+                newServiceWork,
+                handler);
+    }
+
+    /**
+     * Creates an instance of the proxy and binds it to the appropriate FusedProvider.
+     *
+     * @param context           The context needed for construction.
+     * @param handler           The handler needed for construction.
+     * @param locationHardware  The instance of the Fused location hardware assigned to the proxy.
+     *
+     * @return An instance of the proxy if it could be bound, null otherwise.
+     */
+    public static FusedProxy createAndBind(
+            Context context,
+            Handler handler,
+            IFusedLocationHardware locationHardware,
+            int overlaySwitchResId,
+            int defaultServicePackageNameResId,
+            int initialPackageNameResId) {
+        FusedProxy fusedProxy = new FusedProxy(
+                context,
+                handler,
+                locationHardware,
+                overlaySwitchResId,
+                defaultServicePackageNameResId,
+                initialPackageNameResId);
+
+        // try to bind the Fused provider
+        if (!fusedProxy.mServiceWatcher.start()) {
+            return null;
+        }
+
+        return fusedProxy;
+    }
+
+    /**
+     * Helper function to bind the FusedLocationHardware to the appropriate FusedProvider instance.
+     *
+     * @param locationHardware  The FusedLocationHardware instance to use for the binding operation.
+     */
+    private void bindProvider(IFusedLocationHardware locationHardware) {
+        IFusedProvider provider = IFusedProvider.Stub.asInterface(mServiceWatcher.getBinder());
+
+        if (provider == null) {
+            Log.e(TAG, "No instance of FusedProvider found on FusedLocationHardware connected.");
+            return;
+        }
+
+        try {
+            provider.onFusedLocationHardwareChange(locationHardware);
+        } catch (RemoteException e) {
+            Log.e(TAG, e.toString());
+        }
+    }
+}