diff --git a/core/java/com/android/server/SystemService.java b/core/java/com/android/server/SystemService.java
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+++ b/core/java/com/android/server/SystemService.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 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.server;
+
+import android.content.Context;
+import android.os.IBinder;
+import android.os.ServiceManager;
+
+/**
+ * The base class for services running in the system process. Override and implement
+ * the lifecycle event callback methods as needed.
+ *
+ * The lifecycle of a SystemService:
+ *
+ * {@link #onCreate(android.content.Context)} is called to initialize the
+ * service.
+ *
+ * {@link #onStart()} is called to get the service running. It is common
+ * for services to publish their Binder interface at this point. All required
+ * dependencies are also assumed to be ready to use.
+ *
+ * Then {@link #onBootPhase(int)} is called as many times as there are boot phases
+ * until {@link #PHASE_BOOT_COMPLETE} is sent, which is the last boot phase. Each phase
+ * is an opportunity to do special work, like acquiring optional service dependencies,
+ * waiting to see if SafeMode is enabled, or registering with a service that gets
+ * started after this one.
+ *
+ * NOTE: All lifecycle methods are called from the same thread that created the
+ * SystemService.
+ *
+ * {@hide}
+ */
+public abstract class SystemService {
+    /*
+     * Boot Phases
+     */
+    public static final int PHASE_LOCK_SETTINGS_READY = 480;
+    public static final int PHASE_SYSTEM_SERVICES_READY = 500;
+    public static final int PHASE_THIRD_PARTY_APPS_CAN_START = 600;
+    public static final int PHASE_BOOT_COMPLETE = 1000;
+
+    private SystemServiceManager mManager;
+    private Context mContext;
+
+    final void init(Context context, SystemServiceManager manager) {
+        mContext = context;
+        mManager = manager;
+        onCreate(context);
+    }
+
+    public final boolean isSafeMode() {
+        return mManager.isSafeMode();
+    }
+
+    /**
+     * Services are not yet available. This is a good place to do setup work that does
+     * not require other services.
+     *
+     * @param context The system context.
+     */
+    public void onCreate(Context context) {}
+
+    /**
+     * Called when the dependencies listed in the @Service class-annotation are available
+     * and after the chosen start phase.
+     * When this method returns, the service should be published.
+     */
+    public abstract void onStart();
+
+    /**
+     * Called on each phase of the boot process. Phases before the service's start phase
+     * (as defined in the @Service annotation) are never received.
+     *
+     * @param phase The current boot phase.
+     */
+    public void onBootPhase(int phase) {}
+
+    /**
+     * Publish the service so it is accessible to other services and apps.
+     */
+    protected final void publishBinderService(String name, IBinder service) {
+        ServiceManager.addService(name, service);
+    }
+
+    /**
+     * Get a binder service by its name.
+     */
+    protected final IBinder getBinderService(String name) {
+        return ServiceManager.getService(name);
+    }
+
+    /**
+     * Publish the service so it is only accessible to the system process.
+     */
+    protected final <T> void publishLocalService(Class<T> type, T service) {
+        LocalServices.addService(type, service);
+    }
+
+    /**
+     * Get a local service by interface.
+     */
+    protected final <T> T getLocalService(Class<T> type) {
+        return LocalServices.getService(type);
+    }
+
+    public final Context getContext() {
+        return mContext;
+    }
+
+//    /**
+//     * Called when a new user has been created. If your service deals with multiple users, this
+//     * method should be overridden.
+//     *
+//     * @param userHandle The user that was created.
+//     */
+//    public void onUserCreated(int userHandle) {
+//    }
+//
+//    /**
+//     * Called when an existing user has started a new session. If your service deals with multiple
+//     * users, this method should be overridden.
+//     *
+//     * @param userHandle The user who started a new session.
+//     */
+//    public void onUserStarted(int userHandle) {
+//    }
+//
+//    /**
+//     * Called when a background user session has entered the foreground. If your service deals with
+//     * multiple users, this method should be overridden.
+//     *
+//     * @param userHandle The user who's session entered the foreground.
+//     */
+//    public void onUserForeground(int userHandle) {
+//    }
+//
+//    /**
+//     * Called when a foreground user session has entered the background. If your service deals with
+//     * multiple users, this method should be overridden;
+//     *
+//     * @param userHandle The user who's session entered the background.
+//     */
+//    public void onUserBackground(int userHandle) {
+//    }
+//
+//    /**
+//     * Called when a user's active session has stopped. If your service deals with multiple users,
+//     * this method should be overridden.
+//     *
+//     * @param userHandle The user who's session has stopped.
+//     */
+//    public void onUserStopped(int userHandle) {
+//    }
+//
+//    /**
+//     * Called when a user has been removed from the system. If your service deals with multiple
+//     * users, this method should be overridden.
+//     *
+//     * @param userHandle The user who has been removed.
+//     */
+//    public void onUserRemoved(int userHandle) {
+//    }
+}