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   1 /*
   2  * SonarQube
   3  * Copyright (C) 2009-2020 SonarSource SA
   4  * mailto:info AT sonarsource DOT com
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 3 of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20 package org.sonar.ce.task.projectanalysis.step;
  21
  22 import java.util.ArrayList;
  23 import java.util.List;
  24 import java.util.Map;
  25 import org.sonar.api.utils.System2;
  26 import org.sonar.ce.task.projectanalysis.issue.IssueCache;
  27 import org.sonar.ce.task.projectanalysis.issue.RuleRepository;
  28 import org.sonar.ce.task.projectanalysis.issue.UpdateConflictResolver;
  29 import org.sonar.ce.task.step.ComputationStep;
  30 import org.sonar.core.issue.DefaultIssue;
  31 import org.sonar.core.util.CloseableIterator;
  32 import org.sonar.db.BatchSession;
  33 import org.sonar.db.DbClient;
  34 import org.sonar.db.DbSession;
  35 import org.sonar.db.issue.IssueChangeMapper;
  36 import org.sonar.db.issue.IssueDto;
  37 import org.sonar.db.issue.IssueMapper;
  38 import org.sonar.server.issue.IssueStorage;
  39
  40 import static org.sonar.core.util.stream.MoreCollectors.toList;
  41 import static org.sonar.core.util.stream.MoreCollectors.uniqueIndex;
  42
  43 public class PersistIssuesStep implements ComputationStep {
  44   // holding up to 1000 DefaultIssue (max size of addedIssues and updatedIssues at any given time) in memory should not
  45   // be a problem while making sure we leverage extensively the batch feature to speed up persistence
  46   private static final int ISSUE_BATCHING_SIZE = BatchSession.MAX_BATCH_SIZE * 2;
  47
  48   private final DbClient dbClient;
  49   private final System2 system2;
  50   private final UpdateConflictResolver conflictResolver;
  51   private final RuleRepository ruleRepository;
  52   private final IssueCache issueCache;
  53   private final IssueStorage issueStorage;
  54
  55   public PersistIssuesStep(DbClient dbClient, System2 system2, UpdateConflictResolver conflictResolver,
  56     RuleRepository ruleRepository, IssueCache issueCache, IssueStorage issueStorage) {
  57     this.dbClient = dbClient;
  58     this.system2 = system2;
  59     this.conflictResolver = conflictResolver;
  60     this.ruleRepository = ruleRepository;
  61     this.issueCache = issueCache;
  62     this.issueStorage = issueStorage;
  63   }
  64
  65   @Override
  66   public void execute(ComputationStep.Context context) {
  67     IssueStatistics statistics = new IssueStatistics();
  68     try (DbSession dbSession = dbClient.openSession(true);
  69       CloseableIterator<DefaultIssue> issues = issueCache.traverse()) {
  70       List<DefaultIssue> addedIssues = new ArrayList<>(ISSUE_BATCHING_SIZE);
  71       List<DefaultIssue> updatedIssues = new ArrayList<>(ISSUE_BATCHING_SIZE);
  72
  73       IssueMapper mapper = dbSession.getMapper(IssueMapper.class);
  74       IssueChangeMapper changeMapper = dbSession.getMapper(IssueChangeMapper.class);
  75       while (issues.hasNext()) {
  76         DefaultIssue issue = issues.next();
  77         if (issue.isNew() || issue.isCopied()) {
  78           addedIssues.add(issue);
  79           if (addedIssues.size() >= ISSUE_BATCHING_SIZE) {
  80             persistNewIssues(statistics, addedIssues, mapper, changeMapper);
  81             addedIssues.clear();
  82           }
  83         } else if (issue.isChanged()) {
  84           updatedIssues.add(issue);
  85           if (updatedIssues.size() >= ISSUE_BATCHING_SIZE) {
  86             persistUpdatedIssues(statistics, updatedIssues, mapper, changeMapper);
  87             updatedIssues.clear();
  88           }
  89         } else {
  90           statistics.untouched++;
  91         }
  92       }
  93       persistNewIssues(statistics, addedIssues, mapper, changeMapper);
  94       persistUpdatedIssues(statistics, updatedIssues, mapper, changeMapper);
  95       flushSession(dbSession);
  96     } finally {
  97       statistics.dumpTo(context);
  98     }
  99   }
 100
 101   private void persistNewIssues(IssueStatistics statistics, List<DefaultIssue> addedIssues, IssueMapper mapper, IssueChangeMapper changeMapper) {
 102     if (addedIssues.isEmpty()) {
 103       return;
 104     }
 105
 106     long now = system2.now();
 107     addedIssues.forEach(i -> {
 108       int ruleId = ruleRepository.getByKey(i.ruleKey()).getId();
 109       IssueDto dto = IssueDto.toDtoForComputationInsert(i, ruleId, now);
 110       mapper.insert(dto);
 111       statistics.inserts++;
 112     });
 113
 114     addedIssues.forEach(i -> issueStorage.insertChanges(changeMapper, i));
 115   }
 116
 117   private void persistUpdatedIssues(IssueStatistics statistics, List<DefaultIssue> updatedIssues, IssueMapper mapper, IssueChangeMapper changeMapper) {
 118     if (updatedIssues.isEmpty()) {
 119       return;
 120     }
 121
 122     long now = system2.now();
 123     updatedIssues.forEach(i -> {
 124       IssueDto dto = IssueDto.toDtoForUpdate(i, now);
 125       mapper.updateIfBeforeSelectedDate(dto);
 126       statistics.updates++;
 127     });
 128
 129     // retrieve those of the updatedIssues which have not been updated and apply conflictResolver on them
 130     List<String> updatedIssueKeys = updatedIssues.stream().map(DefaultIssue::key).collect(toList(updatedIssues.size()));
 131     List<IssueDto> conflictIssueKeys = mapper.selectByKeysIfNotUpdatedAt(updatedIssueKeys, now);
 132     if (!conflictIssueKeys.isEmpty()) {
 133       Map<String, DefaultIssue> issuesByKeys = updatedIssues.stream().collect(uniqueIndex(DefaultIssue::key, updatedIssues.size()));
 134       conflictIssueKeys
 135         .forEach(dbIssue -> {
 136           DefaultIssue updatedIssue = issuesByKeys.get(dbIssue.getKey());
 137           conflictResolver.resolve(updatedIssue, dbIssue, mapper);
 138           statistics.merged++;
 139         });
 140     }
 141
 142     updatedIssues.forEach(i -> issueStorage.insertChanges(changeMapper, i));
 143   }
 144
 145   private static void flushSession(DbSession dbSession) {
 146     dbSession.flushStatements();
 147     dbSession.commit();
 148   }
 149
 150   @Override
 151   public String getDescription() {
 152     return "Persist issues";
 153   }
 154
 155   private static class IssueStatistics {
 156     private int inserts = 0;
 157     private int updates = 0;
 158     private int merged = 0;
 159     private int untouched = 0;
 160
 161     private void dumpTo(ComputationStep.Context context) {
 162       context.getStatistics()
 163         .add("inserts", String.valueOf(inserts))
 164         .add("updates", String.valueOf(updates))
 165         .add("merged", String.valueOf(merged))
 166         .add("untouched", String.valueOf(untouched));
 167     }
 168   }
 169 }