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- /*
- * SonarQube
- * Copyright (C) 2009-2021 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.linereader;
-
- import com.google.common.collect.HashMultimap;
- import com.google.common.collect.Lists;
- import com.google.common.collect.SetMultimap;
- import java.util.Comparator;
- import java.util.IdentityHashMap;
- import java.util.Iterator;
- import java.util.List;
- import java.util.Map;
- import java.util.Optional;
- import org.sonar.api.utils.log.Logger;
- import org.sonar.api.utils.log.Loggers;
- import org.sonar.ce.task.projectanalysis.component.Component;
- import org.sonar.db.protobuf.DbFileSources;
- import org.sonar.scanner.protocol.output.ScannerReport;
-
- import static java.lang.String.format;
- import static org.sonar.ce.task.projectanalysis.source.linereader.RangeOffsetConverter.OFFSET_SEPARATOR;
- import static org.sonar.ce.task.projectanalysis.source.linereader.RangeOffsetConverter.SYMBOLS_SEPARATOR;
-
- public class SymbolsLineReader implements LineReader {
-
- private static final Logger LOG = Loggers.get(SymbolsLineReader.class);
-
- private final Component file;
- private final RangeOffsetConverter rangeOffsetConverter;
- private final Map<ScannerReport.Symbol, Integer> idsBySymbol;
- private final SetMultimap<Integer, ScannerReport.Symbol> symbolsPerLine;
-
- private ReadError readError = null;
-
- public SymbolsLineReader(Component file, Iterator<ScannerReport.Symbol> symbolIterator, RangeOffsetConverter rangeOffsetConverter) {
- this.file = file;
- this.rangeOffsetConverter = rangeOffsetConverter;
- List<ScannerReport.Symbol> symbols = Lists.newArrayList(symbolIterator);
- // Sort symbols to have deterministic id generation
- symbols.sort(SymbolsComparator.INSTANCE);
-
- this.idsBySymbol = createIdsBySymbolMap(symbols);
- this.symbolsPerLine = buildSymbolsPerLine(symbols);
- }
-
- /**
- * Stops reading at first encountered error, which implies the same
- * {@link org.sonar.ce.task.projectanalysis.source.linereader.LineReader.ReadError} will be returned once an error
- * has been encountered and for any then provided {@link DbFileSources.Line.Builder lineBuilder}.
- */
- @Override
- public Optional<ReadError> read(DbFileSources.Line.Builder lineBuilder) {
- if (readError == null) {
- try {
- processSymbols(lineBuilder);
- } catch (RangeOffsetConverter.RangeOffsetConverterException e) {
- readError = new ReadError(Data.SYMBOLS, lineBuilder.getLine());
- LOG.warn(format("Inconsistency detected in Symbols data. Symbols will be ignored for file '%s'", file.getDbKey()), e);
- }
- }
- return Optional.ofNullable(readError);
- }
-
- private void processSymbols(DbFileSources.Line.Builder lineBuilder) {
- int line = lineBuilder.getLine();
-
- // Sort symbols to have deterministic results and avoid false variation that would lead to an unnecessary update of the source files
- // data
- StringBuilder symbolString = new StringBuilder();
- symbolsPerLine.get(line).stream().sorted(SymbolsComparator.INSTANCE).forEach(lineSymbol -> {
- int symbolId = idsBySymbol.get(lineSymbol);
-
- appendSymbol(symbolString, lineSymbol.getDeclaration(), line, symbolId, lineBuilder.getSource());
- for (ScannerReport.TextRange range : lineSymbol.getReferenceList()) {
- appendSymbol(symbolString, range, line, symbolId, lineBuilder.getSource());
- }
- });
- if (symbolString.length() > 0) {
- lineBuilder.setSymbols(symbolString.toString());
- }
- }
-
- private void appendSymbol(StringBuilder lineSymbol, ScannerReport.TextRange range, int line, int symbolId, String sourceLine) {
- if (matchLine(range, line)) {
- String offsets = rangeOffsetConverter.offsetToString(range, line, sourceLine.length());
- if (!offsets.isEmpty()) {
- if (lineSymbol.length() > 0) {
- lineSymbol.append(SYMBOLS_SEPARATOR);
- }
- lineSymbol.append(offsets)
- .append(OFFSET_SEPARATOR)
- .append(symbolId);
- }
- }
- }
-
- private static boolean matchLine(ScannerReport.TextRange range, int line) {
- return range.getStartLine() <= line && range.getEndLine() >= line;
- }
-
- private static Map<ScannerReport.Symbol, Integer> createIdsBySymbolMap(List<ScannerReport.Symbol> symbols) {
- Map<ScannerReport.Symbol, Integer> map = new IdentityHashMap<>(symbols.size());
- int symbolId = 1;
- for (ScannerReport.Symbol symbol : symbols) {
- map.put(symbol, symbolId);
- symbolId++;
- }
- return map;
- }
-
- private static SetMultimap<Integer, ScannerReport.Symbol> buildSymbolsPerLine(List<ScannerReport.Symbol> symbols) {
- SetMultimap<Integer, ScannerReport.Symbol> res = HashMultimap.create();
- for (ScannerReport.Symbol symbol : symbols) {
- putForTextRange(res, symbol, symbol.getDeclaration());
- for (ScannerReport.TextRange textRange : symbol.getReferenceList()) {
- putForTextRange(res, symbol, textRange);
- }
- }
- return res;
- }
-
- private static void putForTextRange(SetMultimap<Integer, ScannerReport.Symbol> res, ScannerReport.Symbol symbol, ScannerReport.TextRange declaration) {
- for (int i = declaration.getStartLine(); i <= declaration.getEndLine(); i++) {
- res.put(i, symbol);
- }
- }
-
- private enum SymbolsComparator implements Comparator<ScannerReport.Symbol> {
- INSTANCE;
-
- @Override
- public int compare(ScannerReport.Symbol o1, ScannerReport.Symbol o2) {
- if (o1.getDeclaration().getStartLine() == o2.getDeclaration().getStartLine()) {
- return Integer.compare(o1.getDeclaration().getStartOffset(), o2.getDeclaration().getStartOffset());
- } else {
- return Integer.compare(o1.getDeclaration().getStartLine(), o2.getDeclaration().getStartLine());
- }
- }
- }
- }
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