1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.systemui;
16 
17 import androidx.annotation.NonNull;
18 
19 import com.android.systemui.dump.DumpManager;
20 
21 import java.io.FileDescriptor;
22 import java.io.PrintWriter;
23 
24 /**
25  * Implemented by classes who want to be in:
26  *   {@code adb shell dumpsys activity service com.android.systemui}
27  *
28  * @see DumpManager
29  */
30 public interface Dumpable {
31 
32     /**
33      * Called when it's time to dump the internal state
34      * @param fd A file descriptor.
35      * @param pw Where to write your dump to.
36      * @param args Arguments.
37      */
dump(@onNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull String[] args)38     void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull String[] args);
39 }
40