1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.wm.shell;
18 
19 import com.android.wm.shell.common.annotations.ExternalThread;
20 
21 import java.io.PrintWriter;
22 
23 /**
24  * An entry point into the shell for dumping shell internal state and running adb commands.
25  *
26  * Use with {@code adb shell dumpsys activity service SystemUIService WMShell ...}.
27  */
28 @ExternalThread
29 public interface ShellCommandHandler {
30     /**
31      * Dumps the shell state.
32      */
dump(PrintWriter pw)33     void dump(PrintWriter pw);
34 
35     /**
36      * Handles a shell command.
37      */
handleCommand(final String[] args, PrintWriter pw)38     boolean handleCommand(final String[] args, PrintWriter pw);
39 }
40