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/*
* SonarQube
* Copyright (C) 2009-2025 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.scanner.scm;
import java.nio.file.Path;
import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import javax.annotation.CheckForNull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import org.sonar.scm.git.ChangedFile;
import static java.util.Collections.emptyMap;
import static java.util.function.Function.identity;
import static java.util.stream.Collectors.toMap;
@Immutable
public class ScmChangedFiles {
@Nullable
private final Set<ChangedFile> changedFiles;
private final Map<Path, ChangedFile> changedFilesByPath;
public ScmChangedFiles(@Nullable Set<ChangedFile> changedFiles) {
this.changedFiles = changedFiles;
this.changedFilesByPath = toChangedFilesByPathMap(changedFiles);
}
public boolean isChanged(Path file) {
if (!isValid()) {
throw new IllegalStateException("Scm didn't provide valid data");
}
return this.getChangedFile(file).isPresent();
}
public boolean isValid() {
return changedFiles != null;
}
@CheckForNull
public Collection<ChangedFile> get() {
return changedFiles;
}
@CheckForNull
public String getOldRelativeFilePath(Path absoluteFilePath) {
return this.getChangedFile(absoluteFilePath)
.filter(ChangedFile::isMovedFile)
.map(ChangedFile::getOldRelativeFilePathReference)
.orElse(null);
}
private Optional<ChangedFile> getChangedFile(Path absoluteFilePath) {
return Optional.ofNullable(changedFilesByPath.get(absoluteFilePath));
}
private static Map<Path, ChangedFile> toChangedFilesByPathMap(@Nullable Set<ChangedFile> changedFiles) {
return Optional.ofNullable(changedFiles)
.map(files -> files.stream().collect(toMap(ChangedFile::getAbsolutFilePath, identity())))
.orElse(emptyMap());
}
}
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