1/*
2 * Copyright (C) 2016 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 android.text.util;
18
19import com.google.caliper.AfterExperiment;
20import com.google.caliper.BeforeExperiment;
21import com.google.caliper.Benchmark;
22import com.google.caliper.Param;
23
24import android.text.Spannable;
25import android.text.SpannableString;
26import android.util.Patterns;
27
28import java.util.regex.Pattern;
29
30public class LinkifyBenchmark {
31    private static final String MATCHING_STR = " http://user:pass@host.com:5432/path?k=v#f " +
32            "host.com:5432/path?k=v#f ";
33
34    private static final String NONMATCHING_STR = " Neque porro quisquam est qui dolorem ipsum " +
35            "quia dolor sit amet, consectetur, adipisci velit ";
36
37    // this pattern does not recognize strings without http scheme therefore is expected to be
38    // faster in MATCHING_STR case.
39    private static final Pattern BASIC_PATTERN = Pattern.compile(
40            "(?:\\b|$|^)http://[a-zA-Z0-9:\\.@\\?=#/]+(?:\\b|$|^)");
41
42    @Param({"1", "4", "16", "64", "256"})
43    private String mParamCopyAmount;
44
45    @Param({MATCHING_STR, NONMATCHING_STR})
46    private String mParamBasicText;
47
48    private Spannable mTestSpannable;
49
50    @BeforeExperiment
51    protected void setUp() throws Exception {
52        int copyAmount = Integer.parseInt(mParamCopyAmount);
53        StringBuilder strBuilder = new StringBuilder();
54        for (int i = 0; i < copyAmount; i++) {
55            strBuilder.append(mParamBasicText);
56        }
57        mTestSpannable = new SpannableString(strBuilder.toString());
58    }
59
60    @AfterExperiment
61    protected void tearDown() {
62        mTestSpannable = null;
63    }
64
65    @Benchmark
66    public void timeNewRegEx(int reps) throws Exception {
67        for (int i = 0; i < reps; i++) {
68            Linkify.addLinks(mTestSpannable, Patterns.AUTOLINK_WEB_URL, "http://",
69                    new String[]{"http://", "https://", "rtsp://"}, null, null);
70        }
71    }
72
73    @Benchmark
74    public void timeOldRegEx(int reps) throws Exception {
75        for (int i = 0; i < reps; i++) {
76            Linkify.addLinks(mTestSpannable, Patterns.WEB_URL, "http://",
77                    new String[]{"http://", "https://", "rtsp://"}, null, null);
78        }
79    }
80
81    @Benchmark
82    public void timeBasicRegEx(int reps) throws Exception {
83        for (int i = 0; i < reps; i++) {
84            Linkify.addLinks(mTestSpannable, BASIC_PATTERN, "http://",
85                    new String[]{"http://", "https://", "rtsp://"}, null, null);
86        }
87    }
88
89}
90