Merge "Create StatsBootstrapAtomService" am: e9f913aee8

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1885469

Change-Id: I9fe270fa5bffb2edd912ba59fbc6c002497e76b4

core/java/android/content/Context.java

@@ -5461,6 +5461,12 @@ public abstract class Context {
      */
     public static final String STATS_COMPANION_SERVICE = "statscompanion";
 
+    /**
+     * Service to assist statsd in logging atoms from bootstrap atoms.
+     * @hide
+     */
+    public static final String STATS_BOOTSTRAP_ATOM_SERVICE = "statsbootstrap";
+
     /**
      * Use with {@link #getSystemService(String)} to retrieve an {@link android.app.StatsManager}.
      * @hide

core/java/android/os/IStatsBootstrapAtomService.aidl

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2021, 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 android.os;
+
+import android.os.StatsBootstrapAtom;
+
+/**
+ * IBootstrapAtomService interface exposes an interface for processes that launch in the
+ * bootstrap namespace to push atoms to statsd.
+ *
+ * @hide
+ */
+oneway interface IStatsBootstrapAtomService {
+    /**
+     * Push an atom to StatsBootstrapAtomService, which will forward it to statsd.
+     *
+     * @param atom - parcelled representation of the atom to log.
+     *
+     * Errors are reported as service specific errors.
+     */
+    void reportBootstrapAtom(in StatsBootstrapAtom atom);
+}

core/java/android/os/StatsBootstrapAtom.aidl

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2021, 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 android.os;
+
+import android.os.StatsBootstrapAtomValue;
+
+/*
+ * Generic encapsulation of an atom for bootstrap processes to log.
+ *
+ * @hide
+ */
+parcelable StatsBootstrapAtom {
+    /*
+     * Atom ID. Must be between 1 - 10,000.
+     */
+    int atomId;
+    /*
+     * Vector of fields in the order of the atom definition.
+     */
+    StatsBootstrapAtomValue[] values;
+ }

core/java/android/os/StatsBootstrapAtomValue.aidl

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2021, 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 android.os;
+/*
+ * Supported field types.
+ *
+ * @hide
+ */
+union StatsBootstrapAtomValue {
+    boolean boolValue;
+    int intValue;
+    long longValue;
+    float floatValue;
+    String stringValue;
+    byte[] bytesValue;
+}

services/core/java/com/android/server/stats/bootstrap/StatsBootstrapAtomService.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2021 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.stats.bootstrap;
+
+import android.content.Context;
+import android.os.IStatsBootstrapAtomService;
+import android.os.StatsBootstrapAtom;
+import android.os.StatsBootstrapAtomValue;
+import android.util.Slog;
+import android.util.StatsEvent;
+import android.util.StatsLog;
+
+import com.android.server.SystemService;
+
+/**
+ * Proxy service for logging pushed atoms to statsd
+ *
+ * @hide
+ */
+public class StatsBootstrapAtomService extends IStatsBootstrapAtomService.Stub {
+
+    private static final String TAG = "StatsBootstrapAtomService";
+    private static final boolean DEBUG = false;
+
+    @Override
+    public void reportBootstrapAtom(StatsBootstrapAtom atom) {
+        if (atom.atomId < 1 || atom.atomId >= 10000) {
+            Slog.e(TAG, "Atom ID " + atom.atomId + " is not a valid atom ID");
+            return;
+        }
+        StatsEvent.Builder builder = StatsEvent.newBuilder().setAtomId(atom.atomId);
+        for (StatsBootstrapAtomValue value : atom.values) {
+            switch (value.getTag()) {
+                case StatsBootstrapAtomValue.boolValue:
+                    builder.writeBoolean(value.getBoolValue());
+                    break;
+                case StatsBootstrapAtomValue.intValue:
+                    builder.writeInt(value.getIntValue());
+                    break;
+                case StatsBootstrapAtomValue.longValue:
+                    builder.writeLong(value.getLongValue());
+                    break;
+                case StatsBootstrapAtomValue.floatValue:
+                    builder.writeFloat(value.getFloatValue());
+                    break;
+                case StatsBootstrapAtomValue.stringValue:
+                    builder.writeString(value.getStringValue());
+                    break;
+                case StatsBootstrapAtomValue.bytesValue:
+                    builder.writeByteArray(value.getBytesValue());
+                    break;
+                default:
+                    Slog.e(TAG, "Unexpected value type " + value.getTag()
+                            + " when logging atom " + atom.atomId);
+                    return;
+
+            }
+        }
+        StatsLog.write(builder.usePooledBuffer().build());
+    }
+
+    /**
+     * Lifecycle and related code
+     */
+    public static final class Lifecycle extends SystemService {
+        private StatsBootstrapAtomService mStatsBootstrapAtomService;
+
+        public Lifecycle(Context context) {
+            super(context);
+        }
+
+        @Override
+        public void onStart() {
+            mStatsBootstrapAtomService = new StatsBootstrapAtomService();
+            try {
+                publishBinderService(Context.STATS_BOOTSTRAP_ATOM_SERVICE,
+                        mStatsBootstrapAtomService);
+                if (DEBUG) Slog.d(TAG, "Published " + Context.STATS_BOOTSTRAP_ATOM_SERVICE);
+            } catch (Exception e) {
+                Slog.e(TAG, "Failed to publishBinderService", e);
+            }
+        }
+    }
+
+}

services/java/com/android/server/SystemServer.java

@@ -264,6 +264,8 @@ public final class SystemServer implements Dumpable {
             "com.android.server.stats.StatsCompanion$Lifecycle";
     private static final String STATS_PULL_ATOM_SERVICE_CLASS =
             "com.android.server.stats.pull.StatsPullAtomService";
+    private static final String STATS_BOOTSTRAP_ATOM_SERVICE_LIFECYCLE_CLASS =
+            "com.android.server.stats.bootstrap.StatsBootstrapAtomService$Lifecycle";
     private static final String USB_SERVICE_CLASS =
             "com.android.server.usb.UsbService$Lifecycle";
     private static final String MIDI_SERVICE_CLASS =
@@ -2483,6 +2485,11 @@ public final class SystemServer implements Dumpable {
         mSystemServiceManager.startService(STATS_PULL_ATOM_SERVICE_CLASS);
         t.traceEnd();
 
+        // Log atoms to statsd from bootstrap processes.
+        t.traceBegin("StatsBootstrapAtomService");
+        mSystemServiceManager.startService(STATS_BOOTSTRAP_ATOM_SERVICE_LIFECYCLE_CLASS);
+        t.traceEnd();
+
         // Incidentd and dumpstated helper
         t.traceBegin("StartIncidentCompanionService");
         mSystemServiceManager.startService(IncidentCompanionService.class);