1 /*
2  * Copyright (C) 2022 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.server.usb;
18 
19 import com.android.internal.util.dump.DualDumpOutputStream;
20 import com.android.server.utils.EventLogger;
21 
22 import java.util.List;
23 
24 /**
25  * Writes logs to {@link DualDumpOutputStream}.
26  *
27  * @see EventLogger.DumpSink
28  * @see DualDumpOutputStream
29  */
30 final class DualOutputStreamDumpSink implements EventLogger.DumpSink {
31 
32     private final long mId;
33     private final DualDumpOutputStream mDumpOutputStream;
34 
DualOutputStreamDumpSink(DualDumpOutputStream dualDumpOutputStream, long id)35     /* package */ DualOutputStreamDumpSink(DualDumpOutputStream dualDumpOutputStream, long id) {
36         mDumpOutputStream = dualDumpOutputStream;
37         mId = id;
38     }
39 
40     /**
41      * {@inheritDoc}
42      */
43     @Override
sink(String tag, List<EventLogger.Event> events)44     public void sink(String tag, List<EventLogger.Event> events) {
45         mDumpOutputStream.write("USB Event Log", mId, tag);
46         for (EventLogger.Event evt: events) {
47             mDumpOutputStream.write("USB Event", mId, evt.toString());
48         }
49     }
50 }
51