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1 /*
2  * Copyright (C) 2015 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 package com.android.icu4j.srcgen.checker;
17 
18 import com.google.common.collect.Sets;
19 import com.google.currysrc.Main;
20 import com.google.currysrc.api.input.InputFileGenerator;
21 
22 import com.android.icu4j.srcgen.Icu4jTransformRules;
23 
24 import java.io.BufferedWriter;
25 import java.io.File;
26 import java.io.FileWriter;
27 import java.util.List;
28 import java.util.Set;
29 
30 /**
31  * Checks that the source in android_icu4j doesn't have obvious problems.
32  */
33 public class CheckAndroidIcu4JSource {
34 
35   private static final boolean DEBUG = false;
36 
CheckAndroidIcu4JSource()37   private CheckAndroidIcu4JSource() {
38   }
39 
40   /**
41    * Usage:
42    * java com.android.icu4j.srcgen.CheckAndroidIcu4JSource {android_icu4j src directories}
43    *   {report output file path}
44    */
main(String[] args)45   public static void main(String[] args) throws Exception {
46     if (args.length < 2) {
47       throw new IllegalArgumentException("At least 2 argument required.");
48     }
49 
50     Main main = new Main(DEBUG);
51 
52     // We assume we only need to look at ICU4J code for this for both passes.
53     String[] inputDirs = new String[args.length - 1];
54     System.arraycopy(args, 0, inputDirs, 0, inputDirs.length);
55     InputFileGenerator inputFileGenerator = Icu4jTransformRules.createInputFileGenerator(inputDirs);
56 
57     // Pass 1: Establish the set of classes and members that are public in the Android API.
58     System.out.println("Establishing Android public ICU4J API");
59     RecordPublicApiRules recordPublicApiRulesRules = new RecordPublicApiRules(inputFileGenerator);
60     main.execute(recordPublicApiRulesRules);
61     List<String> publicMemberLocatorStrings = recordPublicApiRulesRules.publicMembers();
62     System.out.println("Public API is:");
63     for (String publicMemberLocatorString : publicMemberLocatorStrings) {
64       System.out.println(publicMemberLocatorString);
65     }
66 
67     // Pass 2: Check for issues.
68     System.out.println("Checking for issues");
69     Set<String> publicMembersSet = Sets.newHashSet(publicMemberLocatorStrings);
70     File outputReportFile = new File(args[args.length - 1]);
71     FileWriter out = new FileWriter(outputReportFile, false /* append */);
72     try (BufferedWriter reportWriter = new BufferedWriter(out)) {
73       reportWriter.append("Beginning of report:\n");
74       CheckAndroidIcu4jSourceRules reportRules =
75           new CheckAndroidIcu4jSourceRules(inputFileGenerator, publicMembersSet);
76       main.execute(reportRules, reportWriter);
77       reportWriter.append("End of report\n");
78     }
79 
80     System.out.println("Report file: " + outputReportFile);
81   }
82 
83 }
84