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- /*
- * SonarQube
- * Copyright (C) 2009-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- package org.sonar.ce.task.projectanalysis.source;
-
- import java.util.List;
- import java.util.Optional;
- import org.apache.commons.lang3.StringUtils;
- import org.sonar.ce.task.projectanalysis.component.Component;
- import org.sonar.core.hash.LineRange;
- import org.sonar.core.hash.SourceLineHashesComputer;
- import org.sonar.core.util.CloseableIterator;
- import org.sonar.db.source.LineHashVersion;
-
- public class SourceLinesHashRepositoryImpl implements SourceLinesHashRepository {
- private final SourceLinesRepository sourceLinesRepository;
- private final SignificantCodeRepository significantCodeRepository;
- private final SourceLinesHashCache cache;
- private final DbLineHashVersion dbLineHashesVersion;
-
- public SourceLinesHashRepositoryImpl(SourceLinesRepository sourceLinesRepository, SignificantCodeRepository significantCodeRepository,
- SourceLinesHashCache cache, DbLineHashVersion dbLineHashVersion) {
- this.sourceLinesRepository = sourceLinesRepository;
- this.significantCodeRepository = significantCodeRepository;
- this.cache = cache;
- this.dbLineHashesVersion = dbLineHashVersion;
- }
-
- @Override
- public List<String> getLineHashesMatchingDBVersion(Component component) {
- return cache.computeIfAbsent(component, this::createLineHashesMatchingDBVersion);
- }
-
- @Override
- public int getLineHashesVersion(Component component) {
- if (significantCodeRepository.getRangesPerLine(component).isPresent()) {
- return LineHashVersion.WITH_SIGNIFICANT_CODE.getDbValue();
- } else {
- return LineHashVersion.WITHOUT_SIGNIFICANT_CODE.getDbValue();
- }
- }
-
- @Override
- public LineHashesComputer getLineHashesComputerToPersist(Component component) {
- boolean cacheHit = cache.contains(component);
-
- // check if line hashes are cached and if we can use it
- if (cacheHit && !dbLineHashesVersion.hasLineHashesWithoutSignificantCode(component)) {
- return new CachedLineHashesComputer(cache.get(component));
- }
-
- Optional<LineRange[]> significantCodePerLine = significantCodeRepository.getRangesPerLine(component);
- if (cacheHit && !significantCodePerLine.isPresent()) {
- return new CachedLineHashesComputer(cache.get(component));
- }
-
- // Generate the line hashes taking into account significant code ranges
- return createLineHashesProcessor(component.getFileAttributes().getLines(), significantCodePerLine);
- }
-
- private List<String> createLineHashesMatchingDBVersion(Component component) {
- if (dbLineHashesVersion.hasLineHashesWithoutSignificantCode(component)) {
- return createLineHashes(component, Optional.empty());
- }
-
- // if the file is not in the DB, this will be used too
- Optional<LineRange[]> significantCodePerLine = significantCodeRepository.getRangesPerLine(component);
- return createLineHashes(component, significantCodePerLine);
- }
-
- private List<String> createLineHashes(Component component, Optional<LineRange[]> significantCodePerLine) {
- LineHashesComputer processor = createLineHashesProcessor(component.getFileAttributes().getLines(), significantCodePerLine);
- try (CloseableIterator<String> lines = sourceLinesRepository.readLines(component)) {
- while (lines.hasNext()) {
- processor.addLine(lines.next());
- }
- return processor.getResult();
- }
- }
-
- public interface LineHashesComputer {
- void addLine(String line);
-
- List<String> getResult();
- }
-
- private static LineHashesComputer createLineHashesProcessor(int numLines, Optional<LineRange[]> significantCodePerLine) {
- if (significantCodePerLine.isPresent()) {
- return new SignificantCodeLineHashesComputer(new SourceLineHashesComputer(numLines), significantCodePerLine.get());
- } else {
- return new SimpleLineHashesComputer(numLines);
- }
- }
-
- static class CachedLineHashesComputer implements LineHashesComputer {
- private final List<String> lineHashes;
-
- public CachedLineHashesComputer(List<String> lineHashes) {
- this.lineHashes = lineHashes;
- }
-
- @Override
- public void addLine(String line) {
- // no op
- }
-
- @Override
- public List<String> getResult() {
- return lineHashes;
- }
- }
-
- static class SimpleLineHashesComputer implements LineHashesComputer {
- private final SourceLineHashesComputer delegate;
-
- public SimpleLineHashesComputer(int numLines) {
- this.delegate = new SourceLineHashesComputer(numLines);
- }
-
- @Override
- public void addLine(String line) {
- delegate.addLine(line);
- }
-
- @Override
- public List<String> getResult() {
- return delegate.getLineHashes();
- }
- }
-
- static class SignificantCodeLineHashesComputer implements LineHashesComputer {
- private final SourceLineHashesComputer delegate;
- private final LineRange[] rangesPerLine;
-
- private int i = 0;
-
- public SignificantCodeLineHashesComputer(SourceLineHashesComputer hashComputer, LineRange[] rangesPerLine) {
- this.rangesPerLine = rangesPerLine;
- this.delegate = hashComputer;
- }
-
- @Override
- public void addLine(String line) {
- LineRange range = null;
- if (i < rangesPerLine.length) {
- range = rangesPerLine[i];
- }
-
- if (range == null) {
- delegate.addLine("");
- } else {
- delegate.addLine(StringUtils.substring(line, range.startOffset(), range.endOffset()));
- }
- i++;
- }
-
- @Override
- public List<String> getResult() {
- return delegate.getLineHashes();
- }
- }
-
- }
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