org.sonar.server.computation.component.MapBasedDbIdsRepository Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of sonar-server Show documentation
There is a newer version: 7.2.1
/*
 * SonarQube
 * Copyright (C) 2009-2016 SonarSource SA
 * mailto:contact 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.server.computation.component;

import com.google.common.base.Function;
import java.util.HashMap;
import java.util.Map;

import static com.google.common.base.Preconditions.checkState;
import static java.lang.String.format;

/**
 * Cache of database ids for components (component id and snapshot id) based in Maps.
 *
 * This class is intended as a to be used as a delegate in another implementation of MutableDbIdsRepository, hence the
 * final keyword.
 */
public final class MapBasedDbIdsRepository implements MutableDbIdsRepository {

  private final Function componentToKey;
  private final Map componentIdsByRef = new HashMap<>();
  private final Map snapshotIdsByRef = new HashMap<>();
  private final Map developerIdsByKey = new HashMap<>();

  public MapBasedDbIdsRepository(Function componentToKey) {
    this.componentToKey = componentToKey;
  }

  @Override
  public DbIdsRepository setComponentId(Component component, long componentId) {
    T ref = componentToKey.apply(component);
    Long existingComponentId = componentIdsByRef.get(ref);
    checkState(existingComponentId == null,
      format("Component id '%s' is already registered in repository for Component '%s', can not set new id '%s'", existingComponentId, component.getKey(), componentId));
    componentIdsByRef.put(ref, componentId);
    return this;
  }

  @Override
  public long getComponentId(Component component) {
    T ref = componentToKey.apply(component);
    Long componentId = componentIdsByRef.get(ref);
    checkState(componentId != null, format("No component id registered in repository for Component '%s'", component.getKey()));
    return componentId;
  }

  @Override
  public DbIdsRepository setSnapshotId(Component component, long snapshotId) {
    T ref = componentToKey.apply(component);
    Long existingSnapshotId = snapshotIdsByRef.get(ref);
    checkState(existingSnapshotId == null,
      format("Snapshot id '%s' is already registered in repository for Component '%s', can not set new id '%s'", existingSnapshotId, component.getKey(), snapshotId));
    snapshotIdsByRef.put(ref, snapshotId);
    return this;
  }

  @Override
  public long getSnapshotId(Component component) {
    T ref = componentToKey.apply(component);
    Long snapshotId = snapshotIdsByRef.get(ref);
    checkState(snapshotId != null, format("No snapshot id registered in repository for Component '%s'", component.getKey()));
    return snapshotId;
  }

  @Override
  public DbIdsRepository setDeveloperId(Developer developer, long developerId) {
    Long existingId = developerIdsByKey.get(developer);
    checkState(existingId == null, format("Id '%s' is already registered in repository for Developer '%s', can not set new id '%s'", existingId, developer, developerId));
    developerIdsByKey.put(developer, developerId);
    return this;
  }

  @Override
  public long getDeveloperId(Developer developer) {
    Long devId = developerIdsByKey.get(developer);
    checkState(devId != null, format("No id registered in repository for Developer '%s'", developer));
    return devId;
  }
}