Home | History | Annotate | Download | only in checker 
      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 
     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    */
     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