Add the assisted dialing logic module.

This implements the core assisted dialing logic specified in
go/assisted-dialing-dd-v1

Bug: 36414469,63995261
Test: new unit tests
PiperOrigin-RevId: 170232634
Change-Id: I3b668c3a0e9fb5398eca4614548c8141b200e70e

1 files changed, 58 insertions, 0 deletions

diff --git a/java/com/android/dialer/assisteddialing/ConcreteCreator.java b/java/com/android/dialer/assisteddialing/ConcreteCreator.java
new file mode 100644
index 000000000..f51216a69
--- /dev/null
+++ b/java/com/android/dialer/assisteddialing/ConcreteCreator.java
@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+package com.android.dialer.assisteddialing;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.os.Build.VERSION_CODES;
+import android.support.annotation.NonNull;
+import android.telephony.TelephonyManager;
+import com.android.dialer.common.LogUtil;
+
+/**
+ * A Creator for AssistedDialingMediators.
+ *
+ * <p>This helps keep the dependencies required by AssistedDialingMediator for assisted dialing
+ * explicit.
+ */
+@TargetApi(VERSION_CODES.N)
+public final class ConcreteCreator {
+
+  /**
+   * Creates a new AssistedDialingMediator
+   *
+   * @param telephonyManager The telephony manager used to determine user location.
+   * @param context The context used to determine whether or not a provided number is an emergency
+   *     number.
+   * @return An AssistedDialingMediator
+   */
+  public static AssistedDialingMediator createNewAssistedDialingMediator(
+      @NonNull TelephonyManager telephonyManager, @NonNull Context context) {
+    if (telephonyManager == null) {
+      LogUtil.i(
+          "ConcreteCreator.createNewAssistedDialingMediator", "provided TelephonyManager was null");
+      throw new NullPointerException("Provided TelephonyManager was null");
+    }
+    if (context == null) {
+      LogUtil.i("ConcreteCreator.createNewAssistedDialingMediator", "provided context was null");
+      throw new NullPointerException("Provided context was null");
+    }
+    Constraints constraints = new Constraints(context);
+    return new AssistedDialingMediator(
+        new LocationDetector(telephonyManager), new NumberTransformer(constraints));
+  }
+}