1 /*
2  * Copyright (C) 2011 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 androidx.core.util;
18 
19 import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX;
20 
21 import android.util.Log;
22 
23 import androidx.annotation.RestrictTo;
24 
25 import java.io.Writer;
26 
27 /**
28  * @deprecated Copied to use sites. Do not use.
29  */
30 @RestrictTo(LIBRARY_GROUP_PREFIX)
31 @Deprecated
32 public class LogWriter extends Writer {
33     private final String mTag;
34     private StringBuilder mBuilder = new StringBuilder(128);
35 
36     /**
37      * Create a new Writer that sends to the log with the given priority
38      * and tag.
39      *
40      * @param tag A string tag to associate with each printed log statement.
41      */
LogWriter(String tag)42     public LogWriter(String tag) {
43         mTag = tag;
44     }
45 
close()46     @Override public void close() {
47         flushBuilder();
48     }
49 
flush()50     @Override public void flush() {
51         flushBuilder();
52     }
53 
write(char[] buf, int offset, int count)54     @Override public void write(char[] buf, int offset, int count) {
55         for(int i = 0; i < count; i++) {
56             char c = buf[offset + i];
57             if ( c == '\n') {
58                 flushBuilder();
59             }
60             else {
61                 mBuilder.append(c);
62             }
63         }
64     }
65 
flushBuilder()66     private void flushBuilder() {
67         if (mBuilder.length() > 0) {
68             Log.d(mTag, mBuilder.toString());
69             mBuilder.delete(0, mBuilder.length());
70         }
71     }
72 }
73