Revert "SONAR-6259 Validate project and module keys"

This reverts commit a8e2ff5ad049dc21a9922dca08ef3c2825605c1b.

8 files changed, 61 insertions, 443 deletions

diff --git a/server/sonar-server/src/main/java/org/sonar/server/component/db/ComponentDao.java b/server/sonar-server/src/main/java/org/sonar/server/component/db/ComponentDao.java
index 52169547e35..fdebb5a6f69 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/component/db/ComponentDao.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/component/db/ComponentDao.java
@@ -22,12 +22,6 @@ package org.sonar.server.component.db;
 
 import com.google.common.base.Function;
 import com.google.common.collect.Lists;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import javax.annotation.CheckForNull;
-import javax.annotation.Nullable;
 import org.apache.ibatis.session.RowBounds;
 import org.sonar.api.resources.Qualifiers;
 import org.sonar.api.resources.Scopes;
@@ -42,6 +36,14 @@ import org.sonar.core.persistence.DbSession;
 import org.sonar.server.es.SearchOptions;
 import org.sonar.server.exceptions.NotFoundException;
 
+import javax.annotation.CheckForNull;
+import javax.annotation.Nullable;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
 import static com.google.common.collect.Maps.newHashMapWithExpectedSize;
 
 /**
@@ -80,6 +82,10 @@ public class ComponentDao implements DaoComponent {
     return mapper(session).countById(id) > 0;
   }
 
+  public List<ComponentDto> selectModulesByProject(String projectKey, DbSession session) {
+    return mapper(session).selectModulesByProject(projectKey);
+  }
+
   public List<ComponentDto> selectSubProjectsByComponentUuids(DbSession session, Collection<String> keys) {
     if (keys.isEmpty()) {
       return Collections.emptyList();
@@ -131,11 +137,7 @@ public class ComponentDao implements DaoComponent {
   }
 
   public List<ComponentDto> selectComponentsFromProjectKey(DbSession session, String projectKey) {
-    return mapper(session).selectComponentsFromProjectKeyAndScope(projectKey, null);
-  }
-
-  public List<ComponentDto> selectModulesFromProjectKey(DbSession session, String projectKey) {
-    return mapper(session).selectComponentsFromProjectKeyAndScope(projectKey, Scopes.PROJECT);
+    return mapper(session).selectComponentsFromProjectKey(projectKey);
   }
 
   public List<ComponentDto> selectByKeys(DbSession session, Collection<String> keys) {
diff --git a/server/sonar-server/src/main/java/org/sonar/server/computation/step/ComputationSteps.java b/server/sonar-server/src/main/java/org/sonar/server/computation/step/ComputationSteps.java
index c1052d65fdf..9f3368cff76 100644
--- a/server/sonar-server/src/main/java/org/sonar/server/computation/step/ComputationSteps.java
+++ b/server/sonar-server/src/main/java/org/sonar/server/computation/step/ComputationSteps.java
@@ -37,7 +37,6 @@ public class ComputationSteps {
   public static List<Class<? extends ComputationStep>> orderedStepClasses() {
     return Arrays.asList(
       PopulateComponentsUuidAndKeyStep.class,
-      ValidateProjectStep.class,
 
       // Read report
       ParseReportStep.class,
diff --git a/server/sonar-server/src/main/java/org/sonar/server/computation/step/ValidateProjectStep.java b/server/sonar-server/src/main/java/org/sonar/server/computation/step/ValidateProjectStep.java
deleted file mode 100644
index 120b507a6de..00000000000
--- a/server/sonar-server/src/main/java/org/sonar/server/computation/step/ValidateProjectStep.java
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * SonarQube, open source software quality management tool.
- * Copyright (C) 2008-2014 SonarSource
- * mailto:contact AT sonarsource DOT com
- *
- * SonarQube 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.
- *
- * SonarQube 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.step;
-
-import com.google.common.base.Function;
-import com.google.common.base.Joiner;
-import com.google.common.collect.Maps;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import javax.annotation.CheckForNull;
-import javax.annotation.Nonnull;
-import org.sonar.api.CoreProperties;
-import org.sonar.api.config.Settings;
-import org.sonar.batch.protocol.output.BatchReport;
-import org.sonar.core.component.ComponentDto;
-import org.sonar.core.component.ComponentKeys;
-import org.sonar.core.persistence.DbSession;
-import org.sonar.server.component.db.ComponentDao;
-import org.sonar.server.computation.ComputationContext;
-import org.sonar.server.computation.component.Component;
-import org.sonar.server.computation.component.DepthTraversalTypeAwareVisitor;
-import org.sonar.server.db.DbClient;
-
-/**
- * Validate project and modules. It will fail in the following cases :
- * <ol>
- * <li>property {@link org.sonar.api.CoreProperties#CORE_PREVENT_AUTOMATIC_PROJECT_CREATION} is set to true and project does not exists</li>
- * <li>branch is not valid</li>
- * <li>project or module key is not valid</li>
- * <li>module key already exists in another project (same module key cannot exists in different projects)</li>
- * <li>module key is already used as a project key</li>
- * </ol>
- */
-public class ValidateProjectStep implements ComputationStep {
-
-  private static final Joiner MESSAGES_JOINER = Joiner.on("\n  o ");
-
-  private final DbClient dbClient;
-  private final Settings settings;
-
-  public ValidateProjectStep(DbClient dbClient, Settings settings) {
-    this.dbClient = dbClient;
-    this.settings = settings;
-  }
-
-  @Override
-  public void execute(ComputationContext context) {
-    DbSession session = dbClient.openSession(false);
-    try {
-      List<ComponentDto> modules = dbClient.componentDao().selectModulesFromProjectKey(session, context.getRoot().getKey());
-      Map<String, ComponentDto> modulesByKey = Maps.uniqueIndex(modules, new Function<ComponentDto, String>() {
-        @Override
-        public String apply(@Nonnull ComponentDto input) {
-          return input.key();
-        }
-      });
-      ValidateProjectsVisitor visitor = new ValidateProjectsVisitor(session, dbClient.componentDao(), context.getReportMetadata(),
-        settings.getBoolean(CoreProperties.CORE_PREVENT_AUTOMATIC_PROJECT_CREATION), modulesByKey);
-      visitor.visit(context.getRoot());
-
-      if (!visitor.validationMessages.isEmpty()) {
-        throw new IllegalArgumentException("Validation of project failed:\n  o " + MESSAGES_JOINER.join(visitor.validationMessages));
-      }
-    } finally {
-      session.close();
-    }
-  }
-
-  @Override
-  public String getDescription() {
-    return "Validate project and modules keys";
-  }
-
-  private static class ValidateProjectsVisitor extends DepthTraversalTypeAwareVisitor {
-    private final DbSession session;
-    private final ComponentDao componentDao;
-    private final BatchReport.Metadata reportMetadata;
-    private final boolean preventAutomaticProjectCreation;
-    private final Map<String, ComponentDto> modulesByKey;
-    private final List<String> validationMessages = new ArrayList<>();
-
-    private Component root;
-
-    public ValidateProjectsVisitor(DbSession session, ComponentDao componentDao, BatchReport.Metadata reportMetadata, boolean preventAutomaticProjectCreation,
-      Map<String, ComponentDto> modulesByKey) {
-      super(Component.Type.MODULE, Order.PRE_ORDER);
-      this.session = session;
-      this.componentDao = componentDao;
-      this.reportMetadata = reportMetadata;
-      this.preventAutomaticProjectCreation = preventAutomaticProjectCreation;
-      this.modulesByKey = modulesByKey;
-    }
-
-    @Override
-    public void visitProject(Component project) {
-      this.root = project;
-      validateBranch();
-
-      String projectKey = project.getKey();
-      ComponentDto projectDto = loadComponent(projectKey);
-      if (projectDto == null) {
-        if (preventAutomaticProjectCreation) {
-          validationMessages.add(String.format("Unable to scan non-existing project '%s'", projectKey));
-        }
-      } else if (!projectDto.projectUuid().equals(projectDto.uuid())) {
-        // Project key is already used as a module of another project
-        ComponentDto anotherProject = componentDao.selectByUuid(session, projectDto.projectUuid());
-        validationMessages.add(String.format("The project \"%s\" is already defined in SonarQube but as a module of project \"%s\". "
-          + "If you really want to stop directly analysing project \"%s\", please first delete it from SonarQube and then relaunch the analysis of project \"%s\".",
-          projectKey, anotherProject.key(), anotherProject.key(), projectKey));
-      }
-      validateKey(projectKey);
-    }
-
-    @Override
-    public void visitModule(Component module) {
-      String moduleKey = module.getKey();
-      String projectKey = root.getKey();
-      validateKey(moduleKey);
-
-      ComponentDto moduleDto = loadComponent(moduleKey);
-      if (moduleDto == null) {
-        return;
-      }
-      if (moduleDto.projectUuid().equals(moduleDto.uuid())) {
-        // module is actually a project
-        validationMessages.add(String.format("The project \"%s\" is already defined in SonarQube but not as a module of project \"%s\". "
-          + "If you really want to stop directly analysing project \"%s\", please first delete it from SonarQube and then relaunch the analysis of project \"%s\".",
-          moduleKey, projectKey, moduleKey, projectKey));
-      } else if (!moduleDto.projectUuid().equals(root.getUuid())) {
-        ComponentDto projectModule = componentDao.selectByUuid(session, moduleDto.projectUuid());
-        validationMessages.add(String.format("Module \"%s\" is already part of project \"%s\"", moduleKey, projectModule.key()));
-      }
-    }
-
-    private void validateKey(String moduleKey) {
-      if (!ComponentKeys.isValidModuleKey(moduleKey)) {
-        validationMessages.add(String.format("\"%s\" is not a valid project or module key. "
-          + "Allowed characters are alphanumeric, '-', '_', '.' and ':', with at least one non-digit.", moduleKey));
-      }
-    }
-
-    @CheckForNull
-    private void validateBranch() {
-      if (!reportMetadata.hasBranch()) {
-        return;
-      }
-      String branch = reportMetadata.getBranch();
-      if (!ComponentKeys.isValidBranch(branch)) {
-        validationMessages.add(String.format("\"%s\" is not a valid branch name. "
-          + "Allowed characters are alphanumeric, '-', '_', '.' and '/'.", branch));
-      }
-    }
-
-    private ComponentDto loadComponent(String componentKey) {
-      ComponentDto componentDto = modulesByKey.get(componentKey);
-      if (componentDto == null) {
-        // Load component from key to be able to detect issue (try to analyze a module, etc.)
-        return componentDao.selectNullableByKey(session, componentKey);
-      }
-      return componentDto;
-    }
-  }
-}
diff --git a/server/sonar-server/src/test/java/org/sonar/server/component/db/ComponentDaoTest.java b/server/sonar-server/src/test/java/org/sonar/server/component/db/ComponentDaoTest.java
index 396c5c8d33e..d64ef797efa 100644
--- a/server/sonar-server/src/test/java/org/sonar/server/component/db/ComponentDaoTest.java
+++ b/server/sonar-server/src/test/java/org/sonar/server/component/db/ComponentDaoTest.java
@@ -20,8 +20,6 @@
 
 package org.sonar.server.component.db;
 
-import java.util.Collections;
-import java.util.List;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.ClassRule;
@@ -36,6 +34,9 @@ import org.sonar.core.persistence.DbTester;
 import org.sonar.server.es.SearchOptions;
 import org.sonar.server.exceptions.NotFoundException;
 
+import java.util.Collections;
+import java.util.List;
+
 import static com.google.common.collect.Lists.newArrayList;
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -310,6 +311,23 @@ public class ComponentDaoTest {
   }
 
   @Test
+  public void find_modules_by_project() {
+    db.prepareDbUnit(getClass(), "multi-modules.xml");
+
+    List<ComponentDto> results = sut.selectModulesByProject("org.struts:struts", session);
+    assertThat(results).hasSize(1);
+    assertThat(results.get(0).getKey()).isEqualTo("org.struts:struts-core");
+
+    results = sut.selectModulesByProject("org.struts:struts-core", session);
+    assertThat(results).hasSize(1);
+    assertThat(results.get(0).getKey()).isEqualTo("org.struts:struts-data");
+
+    assertThat(sut.selectModulesByProject("org.struts:struts-data", session)).isEmpty();
+
+    assertThat(sut.selectModulesByProject("unknown", session)).isEmpty();
+  }
+
+  @Test
   public void find_sub_projects_by_component_keys() {
     db.prepareDbUnit(getClass(), "multi-modules.xml");
 
@@ -446,16 +464,6 @@ public class ComponentDaoTest {
   }
 
   @Test
-  public void select_modules_from_project() {
-    db.prepareDbUnit(getClass(), "multi-modules.xml");
-
-    List<ComponentDto> components = sut.selectModulesFromProjectKey(session, "org.struts:struts");
-    assertThat(components).hasSize(3);
-
-    assertThat(sut.selectModulesFromProjectKey(session, "UNKNOWN")).isEmpty();
-  }
-
-  @Test
   public void select_views_and_sub_views() {
     db.prepareDbUnit(getClass(), "shared_views.xml");
 
diff --git a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ComputationStepsTest.java b/server/sonar-server/src/test/java/org/sonar/server/computation/step/ComputationStepsTest.java
index 188773c5c41..7ed17968743 100644
--- a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ComputationStepsTest.java
+++ b/server/sonar-server/src/test/java/org/sonar/server/computation/step/ComputationStepsTest.java
@@ -52,13 +52,12 @@ public class ComputationStepsTest {
       mock(PopulateComponentsUuidAndKeyStep.class),
       mock(PersistComponentsStep.class),
       mock(IndexTestsStep.class),
-      mock(QualityProfileEventsStep.class),
-      mock(ValidateProjectStep.class)
+      mock(QualityProfileEventsStep.class)
       );
 
-    assertThat(registry.orderedSteps()).hasSize(21);
+    assertThat(registry.orderedSteps()).hasSize(20);
     assertThat(registry.orderedSteps().get(0)).isInstanceOf(PopulateComponentsUuidAndKeyStep.class);
-    assertThat(registry.orderedSteps().get(20)).isInstanceOf(SendIssueNotificationsStep.class);
+    assertThat(registry.orderedSteps().get(19)).isInstanceOf(SendIssueNotificationsStep.class);
   }
 
   @Test
diff --git a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ValidateProjectStepTest.java b/server/sonar-server/src/test/java/org/sonar/server/computation/step/ValidateProjectStepTest.java
deleted file mode 100644
index 434c3dfca86..00000000000
--- a/server/sonar-server/src/test/java/org/sonar/server/computation/step/ValidateProjectStepTest.java
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * SonarQube, open source software quality management tool.
- * Copyright (C) 2008-2014 SonarSource
- * mailto:contact AT sonarsource DOT com
- *
- * SonarQube 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.
- *
- * SonarQube 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.step;
-
-import java.io.File;
-import java.io.IOException;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.ClassRule;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.ExpectedException;
-import org.junit.rules.TemporaryFolder;
-import org.sonar.api.CoreProperties;
-import org.sonar.api.config.Settings;
-import org.sonar.batch.protocol.output.BatchReport;
-import org.sonar.batch.protocol.output.BatchReportReader;
-import org.sonar.batch.protocol.output.BatchReportWriter;
-import org.sonar.core.component.ComponentDto;
-import org.sonar.core.persistence.DbSession;
-import org.sonar.core.persistence.DbTester;
-import org.sonar.server.component.ComponentTesting;
-import org.sonar.server.component.db.ComponentDao;
-import org.sonar.server.computation.ComputationContext;
-import org.sonar.server.computation.component.Component;
-import org.sonar.server.computation.component.ComponentTreeBuilders;
-import org.sonar.server.computation.component.DumbComponent;
-import org.sonar.server.db.DbClient;
-
-public class ValidateProjectStepTest {
-
-  private static final String PROJECT_KEY = "PROJECT_KEY";
-  private static final String MODULE_KEY = "MODULE_KEY";
-
-  @Rule
-  public ExpectedException thrown = ExpectedException.none();
-
-  @ClassRule
-  public static DbTester dbTester = new DbTester();
-
-  @Rule
-  public TemporaryFolder temp = new TemporaryFolder();
-
-  DbClient dbClient;
-
-  DbSession dbSession;
-
-  Settings settings;
-
-  ValidateProjectStep sut;
-
-  @Before
-  public void setUp() throws Exception {
-    dbTester.truncateTables();
-    dbClient = new DbClient(dbTester.database(), dbTester.myBatis(), new ComponentDao());
-    dbSession = dbClient.openSession(false);
-    settings = new Settings();
-
-    sut = new ValidateProjectStep(dbClient, settings);
-  }
-
-  @After
-  public void tearDown() throws Exception {
-    dbSession.close();
-  }
-
-  @Test
-  public void not_fail_if_provisioning_enforced_and_project_exists() throws Exception {
-    settings.appendProperty(CoreProperties.CORE_PREVENT_AUTOMATIC_PROJECT_CREATION, "true");
-    dbClient.componentDao().insert(dbSession, ComponentTesting.newProjectDto("ABCD").setKey(PROJECT_KEY));
-    dbSession.commit();
-
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY)), null));
-  }
-
-  @Test
-  public void fail_if_provisioning_enforced_and_project_does_not_exists() throws Exception {
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Unable to scan non-existing project '" + PROJECT_KEY + "'");
-
-    settings.appendProperty(CoreProperties.CORE_PREVENT_AUTOMATIC_PROJECT_CREATION, "true");
-
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY)), null));
-  }
-
-  @Test
-  public void fail_if_provisioning_not_enforced_and_project_does_not_exists() throws Exception {
-    settings.appendProperty(CoreProperties.CORE_PREVENT_AUTOMATIC_PROJECT_CREATION, "false");
-
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY)), null));
-  }
-
-  @Test
-  public void not_fail_on_valid_branch() throws Exception {
-    File reportDir = temp.newFolder();
-    BatchReportWriter writer = new BatchReportWriter(reportDir);
-    writer.writeMetadata(BatchReport.Metadata.newBuilder()
-      .setBranch("origin/master")
-      .build());
-
-    sut.execute(new ComputationContext(new BatchReportReader(reportDir), null, null, null,
-      ComponentTreeBuilders.from(new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY)), null));
-  }
-
-  @Test
-  public void fail_on_invalid_branch() throws Exception {
-    File reportDir = temp.newFolder();
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Validation of project failed:\n" +
-      "  o \"bran#ch\" is not a valid branch name. Allowed characters are alphanumeric, '-', '_', '.' and '/'.");
-
-    BatchReportWriter writer = new BatchReportWriter(reportDir);
-    writer.writeMetadata(BatchReport.Metadata.newBuilder()
-      .setBranch("bran#ch")
-      .build());
-
-    sut.execute(new ComputationContext(new BatchReportReader(reportDir), null, null, null,
-      ComponentTreeBuilders.from(new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY)), null));
-  }
-
-  @Test
-  public void fail_on_invalid_key() throws Exception {
-    String invalidProjectKey = "Project\\Key";
-
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Validation of project failed:\n" +
-      "  o \"Project\\Key\" is not a valid project or module key. Allowed characters are alphanumeric, '-', '_', '.' and ':', with at least one non-digit.\n" +
-      "  o \"Module$Key\" is not a valid project or module key. Allowed characters are alphanumeric, '-', '_', '.' and ':', with at least one non-digit");
-
-    DumbComponent root = new DumbComponent(Component.Type.PROJECT, 1, "ABCD", invalidProjectKey,
-      new DumbComponent(Component.Type.MODULE, 2, "BCDE", "Module$Key"));
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null, ComponentTreeBuilders.from(root), null));
-  }
-
-  @Test
-  public void fail_if_module_key_is_already_used_as_project_key() throws Exception {
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Validation of project failed:\n" +
-      "  o The project \"" + MODULE_KEY + "\" is already defined in SonarQube but not as a module of project \"" + PROJECT_KEY + "\". " +
-      "If you really want to stop directly analysing project \"" + MODULE_KEY + "\", please first delete it from SonarQube and then relaunch the analysis of project \""
-      + PROJECT_KEY + "\".");
-
-    ComponentDto project = ComponentTesting.newProjectDto("ABCD").setKey(MODULE_KEY);
-    dbClient.componentDao().insert(dbSession, project);
-    dbSession.commit();
-
-    DumbComponent root = new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY,
-      new DumbComponent(Component.Type.MODULE, 2, "BCDE", MODULE_KEY));
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(root), null));
-  }
-
-  @Test
-  public void fail_if_module_key_already_exists_in_another_project() throws Exception {
-    String anotherProjectKey = "ANOTHER_PROJECT_KEY";
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Validation of project failed:\n" +
-      "  o Module \"" + MODULE_KEY + "\" is already part of project \"" + anotherProjectKey + "\"");
-
-    ComponentDto project = ComponentTesting.newProjectDto("ABCD").setKey(PROJECT_KEY);
-    ComponentDto anotherProject = ComponentTesting.newProjectDto().setKey(anotherProjectKey);
-    dbClient.componentDao().insert(dbSession, project, anotherProject);
-    ComponentDto module = ComponentTesting.newModuleDto("BCDE", anotherProject).setKey(MODULE_KEY);
-    dbClient.componentDao().insert(dbSession, module);
-    dbSession.commit();
-
-    DumbComponent root = new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY,
-      new DumbComponent(Component.Type.MODULE, 2, "BCDE", MODULE_KEY));
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(root), null));
-  }
-
-  @Test
-  public void fail_if_project_key_already_exists_as_module() throws Exception {
-    String anotherProjectKey = "ANOTHER_PROJECT_KEY";
-    thrown.expect(IllegalArgumentException.class);
-    thrown.expectMessage("Validation of project failed:\n" +
-      "  o The project \"" + PROJECT_KEY + "\" is already defined in SonarQube but as a module of project \"" + anotherProjectKey + "\". " +
-      "If you really want to stop directly analysing project \"" + anotherProjectKey + "\", please first delete it from SonarQube and then relaunch the analysis of project \""
-      + PROJECT_KEY + "\".");
-
-    ComponentDto anotherProject = ComponentTesting.newProjectDto().setKey(anotherProjectKey);
-    dbClient.componentDao().insert(dbSession, anotherProject);
-    ComponentDto module = ComponentTesting.newModuleDto("ABCD", anotherProject).setKey(PROJECT_KEY);
-    dbClient.componentDao().insert(dbSession, module);
-    dbSession.commit();
-
-    DumbComponent root = new DumbComponent(Component.Type.PROJECT, 1, "ABCD", PROJECT_KEY,
-      new DumbComponent(Component.Type.MODULE, 2, "BCDE", MODULE_KEY));
-    sut.execute(new ComputationContext(createBasicBatchReportReader(), null, null, null,
-      ComponentTreeBuilders.from(root), null));
-  }
-
-  private BatchReportReader createBasicBatchReportReader() throws IOException {
-    File reportDir = temp.newFolder();
-    BatchReportWriter writer = new BatchReportWriter(reportDir);
-    writer.writeMetadata(BatchReport.Metadata.newBuilder()
-      .build());
-    return new BatchReportReader(reportDir);
-  }
-}
diff --git a/sonar-core/src/main/java/org/sonar/core/component/db/ComponentMapper.java b/sonar-core/src/main/java/org/sonar/core/component/db/ComponentMapper.java
index 7eac6cd994c..424b8a269bf 100644
--- a/sonar-core/src/main/java/org/sonar/core/component/db/ComponentMapper.java
+++ b/sonar-core/src/main/java/org/sonar/core/component/db/ComponentMapper.java
@@ -20,17 +20,18 @@
 
 package org.sonar.core.component.db;
 
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-import javax.annotation.CheckForNull;
-import javax.annotation.Nullable;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.session.RowBounds;
 import org.sonar.core.component.ComponentDto;
 import org.sonar.core.component.FilePathWithHashDto;
 import org.sonar.core.component.UuidWithProjectUuidDto;
 
+import javax.annotation.CheckForNull;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
 /**
  * @since 4.3
  */
@@ -46,6 +47,11 @@ public interface ComponentMapper {
   ComponentDto selectByUuid(String uuid);
 
   /**
+   * Return direct modules from a project/module
+   */
+  List<ComponentDto> selectModulesByProject(@Param("projectKey") String projectKey);
+
+  /**
    * Return sub project of component keys
    */
   List<ComponentDto> selectSubProjectsByComponentUuids(@Param("uuids") Collection<String> uuids);
@@ -90,7 +96,7 @@ public interface ComponentMapper {
   /**
    * Return all components of a project
    */
-  List<ComponentDto> selectComponentsFromProjectKeyAndScope(@Param("projectKey") String projectKey, @Nullable @Param("scope") String scope);
+  List<ComponentDto> selectComponentsFromProjectKey(@Param("projectKey") String projectKey);
 
   /**
    * Return technical projects from a view or a sub-view
diff --git a/sonar-core/src/main/resources/org/sonar/core/component/db/ComponentMapper.xml b/sonar-core/src/main/resources/org/sonar/core/component/db/ComponentMapper.xml
index 8c58c026256..ad195fe0815 100644
--- a/sonar-core/src/main/resources/org/sonar/core/component/db/ComponentMapper.xml
+++ b/sonar-core/src/main/resources/org/sonar/core/component/db/ComponentMapper.xml
@@ -64,6 +64,18 @@
     </where>
   </select>
 
+  <select id="selectModulesByProject" parameterType="String" resultType="Component">
+    SELECT <include refid="componentColumns"/>
+    FROM projects p
+    INNER JOIN snapshots s ON s.project_id=p.id AND s.islast=${_true}
+    INNER JOIN snapshots parent_snapshots ON parent_snapshots.id=s.parent_snapshot_id AND parent_snapshots.islast=${_true}
+    INNER JOIN projects parent ON parent.id=parent_snapshots.project_id AND parent.enabled=${_true} AND parent.kee=#{projectKey}
+    <where>
+      AND p.enabled=${_true}
+      AND p.scope='PRJ'
+    </where>
+  </select>
+
   <select id="selectByKeys" parameterType="String" resultType="Component">
     select <include refid="componentColumns"/>
     from projects p
@@ -201,15 +213,12 @@
     </where>
   </select>
 
-  <select id="selectComponentsFromProjectKeyAndScope" parameterType="map" resultType="Component">
+  <select id="selectComponentsFromProjectKey" parameterType="map" resultType="Component">
     SELECT <include refid="componentColumns"/>
     FROM projects p
     INNER JOIN projects root ON root.uuid=p.project_uuid AND root.kee=#{projectKey}
     <where>
       AND p.enabled=${_true}
-      <if test="scope != null">
-        AND p.scope=#{scope}
-      </if>
     </where>
   </select>