SONAR-4748 Fix issues and regression for temp folders

sonar-batch/src/main/java/org/sonar/batch/bootstrap/BootstrapContainer.java

@@ -26,6 +26,7 @@ import org.sonar.api.platform.ComponentContainer;
 import org.sonar.api.platform.PluginMetadata;
 import org.sonar.api.utils.HttpDownloader;
 import org.sonar.api.utils.UriReader;
+import org.sonar.api.utils.internal.TempFolderCleaner;
 import org.sonar.batch.components.PastMeasuresLoader;
 import org.sonar.batch.components.PastSnapshotFinder;
 import org.sonar.batch.components.PastSnapshotFinderByDate;
@@ -88,6 +89,7 @@ public class BootstrapContainer extends ComponentContainer {
       ServerMetadata.class,
       org.sonar.batch.ServerMetadata.class,
       new TempFolderProvider(),
+      TempFolderCleaner.class,
       HttpDownloader.class,
       UriReader.class,
       new FileCacheProvider());

sonar-batch/src/main/java/org/sonar/batch/bootstrap/TempFolderProvider.java

@@ -33,7 +33,7 @@ public class TempFolderProvider extends ProviderAdapter {
   public TempFolder provide(BootstrapSettings bootstrapSettings) {
     String workingDirPath = bootstrapSettings.property(CoreProperties.WORKING_DIRECTORY, CoreProperties.WORKING_DIRECTORY_DEFAULT_VALUE);
     File workingDir = new File(workingDirPath);
-    File tempDir = new File(workingDir, "tmp");
+    File tempDir = new File(workingDir, ".sonartmp");
     try {
       FileUtils.forceMkdir(tempDir);
     } catch (IOException e) {

sonar-batch/src/test/java/org/sonar/batch/bootstrap/TempFolderProviderTest.java

@@ -26,7 +26,6 @@ import org.junit.rules.ExpectedException;
 import org.junit.rules.TemporaryFolder;
 import org.sonar.api.CoreProperties;
 import org.sonar.api.utils.TempFolder;
-import org.sonar.api.utils.internal.DefaultTempFolder;
 
 import java.io.File;
 
@@ -43,14 +42,12 @@ public class TempFolderProviderTest {
   @Test
   public void createTempFolder() throws Exception {
     File workingDir = temp.newFolder();
-    TempFolder tempFolder = new TempFolderProvider().provide(new BootstrapSettings(
+    TempFolderProvider tempFolderProvider = new TempFolderProvider();
+    TempFolder tempFolder = tempFolderProvider.provide(new BootstrapSettings(
       new BootstrapProperties(ImmutableMap.of(CoreProperties.WORKING_DIRECTORY, workingDir.getAbsolutePath()))));
     tempFolder.newDir();
     tempFolder.newFile();
-    assertThat(new File(workingDir, "tmp")).exists();
-    assertThat(new File(workingDir, "tmp").list()).hasSize(2);
-
-    ((DefaultTempFolder) tempFolder).stop();
-    assertThat(new File(workingDir, "tmp")).doesNotExist();
+    assertThat(new File(workingDir, ".sonartmp")).exists();
+    assertThat(new File(workingDir, ".sonartmp").list()).hasSize(2);
   }
 }

sonar-plugin-api/src/main/java/org/sonar/api/utils/internal/DefaultTempFolder.java

@@ -21,7 +21,6 @@ package org.sonar.api.utils.internal;
 
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang.StringUtils;
-import org.picocontainer.Startable;
 import org.sonar.api.utils.TempFolder;
 
 import javax.annotation.Nullable;
@@ -29,7 +28,7 @@ import javax.annotation.Nullable;
 import java.io.File;
 import java.io.IOException;
 
-public class DefaultTempFolder implements TempFolder, Startable {
+public class DefaultTempFolder implements TempFolder {
 
   /** Maximum loop count when creating temp directories. */
   private static final int TEMP_DIR_ATTEMPTS = 10000;
@@ -104,13 +103,7 @@ public class DefaultTempFolder implements TempFolder, Startable {
       + baseName + "0" + suffix + " to " + baseName + (TEMP_DIR_ATTEMPTS - 1) + suffix + ")");
   }
 
-  @Override
-  public void start() {
-    // Nothing to do
-  }
-
-  @Override
-  public void stop() {
+  public void clean() {
     FileUtils.deleteQuietly(tempDir);
   }
 

sonar-plugin-api/src/main/java/org/sonar/api/utils/internal/TempFolderCleaner.java

@@ -0,0 +1,44 @@
+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2013 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.api.utils.internal;
+
+import org.picocontainer.Startable;
+import org.sonar.api.ServerComponent;
+import org.sonar.api.task.TaskComponent;
+import org.sonar.api.utils.TempFolder;
+
+public class TempFolderCleaner implements TaskComponent, ServerComponent, Startable {
+
+  private TempFolder defaultTempFolder;
+
+  public TempFolderCleaner(TempFolder defaultTempFolder) {
+    this.defaultTempFolder = defaultTempFolder;
+  }
+
+  @Override
+  public void start() {
+    // Nothing to do
+  }
+
+  @Override
+  public void stop() {
+    ((DefaultTempFolder) defaultTempFolder).clean();
+  }
+}

sonar-plugin-api/src/test/java/org/sonar/api/utils/internal/DefaultTempFolderTest.java

@@ -38,26 +38,26 @@ public class DefaultTempFolderTest {
 
   @Test
   public void createTempFolderAndFile() throws Exception {
-    File tempFolder = temp.newFolder();
-    DefaultTempFolder tempUtils = new DefaultTempFolder(tempFolder);
-    File dir = tempUtils.newDir();
+    File rootTempFolder = temp.newFolder();
+    DefaultTempFolder tempFolder = new DefaultTempFolder(rootTempFolder);
+    File dir = tempFolder.newDir();
     assertThat(dir).exists().isDirectory();
-    File file = tempUtils.newFile();
+    File file = tempFolder.newFile();
     assertThat(file).exists().isFile();
 
-    tempUtils.stop();
-    assertThat(tempFolder).doesNotExist();
+    new TempFolderCleaner(tempFolder).stop();
+    assertThat(rootTempFolder).doesNotExist();
   }
 
   @Test
   public void createTempFolderWithName() throws Exception {
-    File tempFolder = temp.newFolder();
-    DefaultTempFolder tempUtils = new DefaultTempFolder(tempFolder);
-    File dir = tempUtils.newDir("sample");
+    File rootTempFolder = temp.newFolder();
+    DefaultTempFolder tempFolder = new DefaultTempFolder(rootTempFolder);
+    File dir = tempFolder.newDir("sample");
     assertThat(dir).exists().isDirectory();
-    assertThat(new File(tempFolder, "sample")).isEqualTo(dir);
+    assertThat(new File(rootTempFolder, "sample")).isEqualTo(dir);
 
-    tempUtils.stop();
-    assertThat(tempFolder).doesNotExist();
+    new TempFolderCleaner(tempFolder).stop();
+    assertThat(rootTempFolder).doesNotExist();
   }
 }

sonar-server/src/main/java/org/sonar/server/platform/Platform.java

@@ -35,6 +35,7 @@ import org.sonar.api.rules.XMLRuleParser;
 import org.sonar.api.utils.HttpDownloader;
 import org.sonar.api.utils.TimeProfiler;
 import org.sonar.api.utils.UriReader;
+import org.sonar.api.utils.internal.TempFolderCleaner;
 import org.sonar.core.component.SnapshotPerspectives;
 import org.sonar.core.config.Logback;
 import org.sonar.core.i18n.GwtI18n;
@@ -239,7 +240,8 @@ public final class Platform {
     rootContainer.addSingleton(PreviewDatabaseFactory.class);
     rootContainer.addSingleton(SemaphoreUpdater.class);
     rootContainer.addSingleton(SemaphoresImpl.class);
-    rootContainer.addSingleton(new TempFolderProvider());
+    rootContainer.addPicoAdapter(new TempFolderProvider());
+    rootContainer.addSingleton(TempFolderCleaner.class);
     rootContainer.startComponents();
   }
 

sonar-server/src/test/java/org/sonar/server/platform/TempFolderProviderTest.java

@@ -25,7 +25,6 @@ import org.junit.rules.ExpectedException;
 import org.junit.rules.TemporaryFolder;
 import org.sonar.api.platform.ServerFileSystem;
 import org.sonar.api.utils.TempFolder;
-import org.sonar.api.utils.internal.DefaultTempFolder;
 
 import java.io.File;
 
@@ -46,13 +45,11 @@ public class TempFolderProviderTest {
     ServerFileSystem fs = mock(ServerFileSystem.class);
     File serverTempFolder = temp.newFolder();
     when(fs.getTempDir()).thenReturn(serverTempFolder);
-    TempFolder tempUtils = new TempFolderProvider().provide(fs);
+    TempFolderProvider tempFolderProvider = new TempFolderProvider();
+    TempFolder tempUtils = tempFolderProvider.provide(fs);
     tempUtils.newDir();
     tempUtils.newFile();
     assertThat(new File(serverTempFolder, "tmp")).exists();
     assertThat(new File(serverTempFolder, "tmp").list()).hasSize(2);
-
-    ((DefaultTempFolder) tempUtils).stop();
-    assertThat(new File(serverTempFolder, "tmp")).doesNotExist();
   }
 }