SONAR-12647 Remove deprecated complexity metrics

* Remove from complexity measure step
* Remove from PersistMeasuresStep
* Remove from ScannerMetrics
* Add the DB migration
* Don't register complexity metrics
* Fix tests

3 files changed, 109 insertions, 1 deletions

diff --git a/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DbVersion202501.java b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DbVersion202501.java
index aee0eaed57d..6ad62d2f856 100644
--- a/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DbVersion202501.java
+++ b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DbVersion202501.java
@@ -33,12 +33,13 @@ public class DbVersion202501 implements DbVersion {
    * 2025_01_001
    * 2025_01_002
    */
-
   @Override
   public void addSteps(MigrationStepRegistry registry) {
     registry
       .add(2025_01_000, "Rename 'sonar.portfolios.confidential.header' property to 'sonar.pdf.confidential.header.enabled'",
         MigrateConfidentialHeaderProperty.class)
+      .add(2025_01_001, "Delete removed complexity measures from 'project_measures' table", DeleteRemovedComplexityMeasuresFromProjectMeasures.class)
+      .add(2025_01_002, "Delete removed complexity metrics from 'metrics' table", DeleteRemovedComplexityMetrics.class)
     ;
   }
 }
diff --git a/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMeasuresFromProjectMeasures.java b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMeasuresFromProjectMeasures.java
new file mode 100644
index 00000000000..bdbde0b8f01
--- /dev/null
+++ b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMeasuresFromProjectMeasures.java
@@ -0,0 +1,61 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2024 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.version.v202501;
+
+import java.sql.SQLException;
+import java.util.Set;
+import java.util.stream.Collectors;
+import org.sonar.db.Database;
+import org.sonar.server.platform.db.migration.step.DataChange;
+import org.sonar.server.platform.db.migration.step.MassUpdate;
+
+public class DeleteRemovedComplexityMeasuresFromProjectMeasures extends DataChange {
+
+  public static final Set<String> COMPLEXITY_METRICS_TO_DELETE = Set.of(
+    "file_complexity",
+    "complexity_in_classes",
+    "class_complexity",
+    "complexity_in_functions",
+    "function_complexity",
+    "function_complexity_distribution",
+    "file_complexity_distribution");
+
+  private static final String SELECT_QUERY = """
+    select pm.uuid from project_measures pm
+      inner join metrics m on pm.metric_uuid = m.uuid
+     where m.name in (%s)
+    """.formatted(COMPLEXITY_METRICS_TO_DELETE.stream().map(s -> "'" + s + "'").collect(Collectors.joining(",")));
+
+  public DeleteRemovedComplexityMeasuresFromProjectMeasures(Database db) {
+    super(db);
+  }
+
+  @Override
+  protected void execute(Context context) throws SQLException {
+    MassUpdate massUpdate = context.prepareMassUpdate();
+    massUpdate.select(SELECT_QUERY);
+    massUpdate.update("delete from project_measures where uuid = ?");
+
+    massUpdate.execute((row, update, index) -> {
+      update.setString(1, row.getString(1));
+      return true;
+    });
+  }
+}
diff --git a/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMetrics.java b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMetrics.java
new file mode 100644
index 00000000000..ce7e1dc0021
--- /dev/null
+++ b/server/sonar-db-migration/src/main/java/org/sonar/server/platform/db/migration/version/v202501/DeleteRemovedComplexityMetrics.java
@@ -0,0 +1,46 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2024 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.version.v202501;
+
+import java.sql.SQLException;
+import java.util.stream.Collectors;
+import org.sonar.db.Database;
+import org.sonar.server.platform.db.migration.step.DataChange;
+
+import static org.sonar.server.platform.db.migration.version.v202501.DeleteRemovedComplexityMeasuresFromProjectMeasures.COMPLEXITY_METRICS_TO_DELETE;
+
+public class DeleteRemovedComplexityMetrics extends DataChange {
+
+  private static final String DELETE_QUERY = """
+    delete
+    from metrics
+    where name in (%s)
+    """.formatted(COMPLEXITY_METRICS_TO_DELETE.stream().map(s -> "'" + s + "'").collect(Collectors.joining(",")));
+
+
+  public DeleteRemovedComplexityMetrics(Database db) {
+    super(db);
+  }
+
+  @Override
+  protected void execute(Context context) throws SQLException {
+    context.prepareUpsert(DELETE_QUERY).execute().commit();
+  }
+}