Move SystemService code to frameworks/base/core
Paves the way for building services without needing to see the
rest of frameworks/base/services.
Change-Id: I8ac4bc9d25471e96076cd888c1fc24b918d8911f
diff --git a/core/java/com/android/server/SystemService.java b/core/java/com/android/server/SystemService.java
new file mode 100644
index 0000000..0356753
--- /dev/null
+++ b/core/java/com/android/server/SystemService.java
@@ -0,0 +1,177 @@
+/*
+ * 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) {
+// }
+}