1/*
2 * Copyright (C) 2013 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
17package com.android.ex.photo.util;
18
19import android.os.Build;
20
21/**
22 * Stand-in for {@link android.os.Trace}.
23 */
24public abstract class Trace {
25
26    /**
27     * Begins systrace tracing for a given tag. No-op on unsupported platform versions.
28     *
29     * @param tag systrace tag to use
30     *
31     * @see android.os.Trace#beginSection(String)
32     */
33    public static void beginSection(String tag) {
34        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
35            android.os.Trace.beginSection(tag);
36        }
37    }
38
39    /**
40     * Ends systrace tracing for the most recently begun section. No-op on unsupported platform
41     * versions.
42     *
43     * @see android.os.Trace#endSection()
44     */
45    public static void endSection() {
46        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
47            android.os.Trace.endSection();
48        }
49    }
50
51}
52