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/*
* Copyright (C) 2020 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.voiceinteraction;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.ShellCommand;
import android.util.Slog;
import com.android.internal.app.IVoiceInteractionSessionShowCallback;
import com.android.server.voiceinteraction.VoiceInteractionManagerService.VoiceInteractionManagerServiceStub;
import java.io.PrintWriter;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Shell command for {@link VoiceInteractionManagerService}.
*/
final class VoiceInteractionManagerServiceShellCommand extends ShellCommand {
private static final String TAG = "VoiceInteractionManager";
private static final long TIMEOUT_MS = 5_000;
private final VoiceInteractionManagerServiceStub mService;
VoiceInteractionManagerServiceShellCommand(VoiceInteractionManagerServiceStub service) {
mService = service;
}
@Override
public int onCommand(String cmd) {
if (cmd == null) {
return handleDefaultCommands(cmd);
}
PrintWriter pw = getOutPrintWriter();
switch (cmd) {
case "show":
return requestShow(pw);
case "hide":
return requestHide(pw);
case "disable":
return requestDisable(pw);
case "restart-detection":
return requestRestartDetection(pw);
default:
return handleDefaultCommands(cmd);
}
}
@Override
public void onHelp() {
try (PrintWriter pw = getOutPrintWriter();) {
pw.println("VoiceInteraction Service (voiceinteraction) commands:");
pw.println(" help");
pw.println(" Prints this help text.");
pw.println("");
pw.println(" show");
pw.println(" Shows a session for the active service");
pw.println("");
pw.println(" hide");
pw.println(" Hides the current session");
pw.println("");
pw.println(" disable [true|false]");
pw.println(" Temporarily disable (when true) service");
pw.println(" restart-detection");
pw.println(" Force a restart of a hotword detection service");
pw.println("");
}
}
private int requestShow(PrintWriter pw) {
Slog.i(TAG, "requestShow()");
CountDownLatch latch = new CountDownLatch(1);
AtomicInteger result = new AtomicInteger();
IVoiceInteractionSessionShowCallback callback =
new IVoiceInteractionSessionShowCallback.Stub() {
@Override
public void onFailed() throws RemoteException {
Slog.w(TAG, "onFailed()");
pw.println("callback failed");
result.set(1);
latch.countDown();
}
@Override
public void onShown() throws RemoteException {
Slog.d(TAG, "onShown()");
result.set(0);
latch.countDown();
}
};
try {
Bundle args = new Bundle();
boolean ok = mService.showSessionForActiveService(args, /* sourceFlags= */ 0, callback,
/* activityToken= */ null);
if (!ok) {
pw.println("showSessionForActiveService() returned false");
return 1;
}
if (!latch.await(TIMEOUT_MS, TimeUnit.MILLISECONDS)) {
pw.printf("Callback not called in %d ms\n", TIMEOUT_MS);
return 1;
}
} catch (Exception e) {
return handleError(pw, "showSessionForActiveService()", e);
}
return 0;
}
private int requestHide(PrintWriter pw) {
Slog.i(TAG, "requestHide()");
try {
mService.hideCurrentSession();
} catch (Exception e) {
return handleError(pw, "requestHide()", e);
}
return 0;
}
private int requestDisable(PrintWriter pw) {
boolean disabled = Boolean.parseBoolean(getNextArgRequired());
Slog.i(TAG, "requestDisable(): " + disabled);
try {
mService.setDisabled(disabled);
} catch (Exception e) {
return handleError(pw, "requestDisable()", e);
}
return 0;
}
private int requestRestartDetection(PrintWriter pw) {
Slog.i(TAG, "requestRestartDetection()");
try {
mService.forceRestartHotwordDetector();
} catch (Exception e) {
return handleError(pw, "requestRestartDetection()", e);
}
return 0;
}
private static int handleError(PrintWriter pw, String message, Exception e) {
Slog.e(TAG, "error calling " + message, e);
pw.printf("Error calling %s: %s\n", message, e);
return 1;
}
}
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