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- /*
- * SonarQube
- * Copyright (C) 2009-2023 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.server.platform.db.migration.step;
-
- import java.util.Comparator;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import java.util.stream.Collectors;
-
- import static com.google.common.base.Preconditions.checkArgument;
- import static com.google.common.base.Preconditions.checkState;
- import static java.util.Objects.requireNonNull;
- import static org.sonar.server.platform.db.migration.step.MigrationNumber.validate;
-
- public class MigrationStepRegistryImpl implements InternalMigrationStepRegistry {
- private final Map<Long, RegisteredMigrationStep> migrations = new HashMap<>();
-
- @Override
- public <T extends MigrationStep> MigrationStepRegistry add(long migrationNumber, String description, Class<T> stepClass) {
- validate(migrationNumber);
- requireNonNull(description, "description can't be null");
- checkArgument(!description.isEmpty(), "description can't be empty");
- requireNonNull(stepClass, "MigrationStep class can't be null");
- checkState(!migrations.containsKey(migrationNumber), "A migration is already registered for migration number '%s'", migrationNumber);
- this.migrations.put(migrationNumber, new RegisteredMigrationStep(migrationNumber, description, stepClass));
- return this;
- }
-
- @Override
- public MigrationSteps build() {
- checkState(!migrations.isEmpty(), "Registry is empty");
- return new MigrationStepsImpl(toOrderedList(this.migrations));
- }
-
- private static List<RegisteredMigrationStep> toOrderedList(Map<Long, RegisteredMigrationStep> migrations) {
- return migrations.entrySet().stream()
- .sorted(Comparator.comparingLong(Map.Entry::getKey))
- .map(Map.Entry::getValue)
- .toList();
- }
-
- }
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