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/*
* SonarQube
* Copyright (C) 2009-2018 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.scan;
import com.google.common.base.Preconditions;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import javax.annotation.CheckForNull;
import org.sonar.api.batch.fs.InputComponent;
import org.sonar.api.batch.fs.internal.InputComponentTree;
public class DefaultComponentTree implements InputComponentTree {
private Map<InputComponent, InputComponent> parents = new HashMap<>();
private Map<InputComponent, Set<InputComponent>> children = new HashMap<>();
public void index(InputComponent component, InputComponent parent) {
Preconditions.checkNotNull(component);
Preconditions.checkNotNull(parent);
parents.put(component, parent);
children.computeIfAbsent(parent, k -> new LinkedHashSet<>()).add(component);
}
@Override
public Collection<InputComponent> getChildren(InputComponent component) {
return children.getOrDefault(component, Collections.emptySet());
}
@CheckForNull
@Override
public InputComponent getParent(InputComponent component) {
return parents.get(component);
}
}
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