1 /*
2  * Copyright (C) 2017 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 android.view.textclassifier;
18 
19 import android.annotation.Nullable;
20 
21 import com.android.internal.annotations.VisibleForTesting;
22 
23 /**
24  * A helper for logging selection session events.
25  *
26  * @hide
27  */
28 public final class SelectionSessionLogger {
29     // Keep this in sync with the ResultIdUtils in libtextclassifier.
30     private static final String CLASSIFIER_ID = "androidtc";
31 
isPlatformLocalTextClassifierSmartSelection(String signature)32     static boolean isPlatformLocalTextClassifierSmartSelection(String signature) {
33         return SelectionSessionLogger.CLASSIFIER_ID.equals(
34                 SelectionSessionLogger.SignatureParser.getClassifierId(signature));
35     }
36 
37     /**
38      * Helper for creating and parsing string ids for
39      * {@link android.view.textclassifier.TextClassifierImpl}.
40      */
41     @VisibleForTesting
42     public static final class SignatureParser {
43 
getClassifierId(@ullable String signature)44         static String getClassifierId(@Nullable String signature) {
45             if (signature == null) {
46                 return "";
47             }
48             final int end = signature.indexOf("|");
49             if (end >= 0) {
50                 return signature.substring(0, end);
51             }
52             return "";
53         }
54     }
55 }
56