Revert "Move frameworks/base/tools/ to frameworks/tools/"
This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/preload/Policy.java b/tools/preload/Policy.java
new file mode 100644
index 0000000..af46820
--- /dev/null
+++ b/tools/preload/Policy.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2008 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.
+ */
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Policy that governs which classes are preloaded.
+ */
+public class Policy {
+
+ /**
+ * No constructor - use static methods only
+ */
+ private Policy() {}
+
+ /**
+ * This location (in the build system) of the preloaded-classes file.
+ */
+ static final String PRELOADED_CLASS_FILE
+ = "frameworks/base/preloaded-classes";
+
+ /**
+ * Long running services. These are restricted in their contribution to the
+ * preloader because their launch time is less critical.
+ */
+ // TODO: Generate this automatically from package manager.
+ private static final Set<String> SERVICES = new HashSet<String>(Arrays.asList(
+ "system_server",
+ "com.google.process.content",
+ "android.process.media",
+ "com.android.bluetooth",
+ "com.android.calendar",
+ "com.android.inputmethod.latin",
+ "com.android.phone",
+ "com.google.android.apps.maps.FriendService", // pre froyo
+ "com.google.android.apps.maps:FriendService", // froyo
+ "com.google.android.apps.maps.LocationFriendService",
+ "com.google.android.deskclock",
+ "com.google.process.gapps",
+ "android.tts"
+ ));
+
+ /**
+ * Classes which we shouldn't load from the Zygote.
+ */
+ private static final Set<String> EXCLUDED_CLASSES
+ = new HashSet<String>(Arrays.asList(
+ // Binders
+ "android.app.AlarmManager",
+ "android.app.SearchManager",
+ "android.os.FileObserver",
+ "com.android.server.PackageManagerService$AppDirObserver",
+
+ // Threads
+ "android.os.AsyncTask",
+ "android.pim.ContactsAsyncHelper",
+ "android.webkit.WebViewClassic$1",
+ "java.lang.ProcessManager"
+ ));
+
+ /**
+ * Returns true if the given process name is a "long running" process or
+ * service.
+ */
+ public static boolean isService(String processName) {
+ return SERVICES.contains(processName);
+ }
+
+ /** Reports if the given class should be preloaded. */
+ public static boolean isPreloadable(LoadedClass clazz) {
+ return clazz.systemClass && !EXCLUDED_CLASSES.contains(clazz.name)
+ && !clazz.name.endsWith("$NoPreloadHolder");
+ }
+}