Add debug logs to export of dry run H2 db

sonar-application/src/main/assembly/conf/logback.xml

@@ -76,10 +76,21 @@
     <level value="WARN"/>
   </logger>
 
+  <!-- Execution of measure filters -->
   <logger name="org.sonar.MEASURE_FILTER">
     <level value="WARN"/>
   </logger>
 
+  <!-- Export of dry run database -->
+  <!--
+  <logger name="org.sonar.core.persistence.DbTemplate">
+    <level value="DEBUG"/>
+  </logger>
+  <logger name="org.sonar.core.persistence.DryRunDatabaseFactory">
+    <level value="DEBUG"/>
+  </logger>
+  -->
+
   <root>
     <level value="INFO"/>
     <appender-ref ref="SONAR_FILE"/>

sonar-core/src/main/java/org/sonar/core/persistence/DbTemplate.java

@@ -31,14 +31,7 @@ import org.sonar.api.ServerComponent;
 import org.sonar.api.utils.SonarException;
 
 import javax.sql.DataSource;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
-import java.sql.Timestamp;
-import java.sql.Types;
+import java.sql.*;
 import java.util.List;
 
 public class DbTemplate implements ServerComponent {
@@ -46,6 +39,7 @@ public class DbTemplate implements ServerComponent {
 
   public DbTemplate copyTable(DataSource source, DataSource dest, String table, String... whereClauses) {
     LOG.debug("Copy table {}", table);
+    long startup = System.currentTimeMillis();
 
     String selectQuery = selectQuery(table, whereClauses);
     truncate(dest, table);
@@ -56,6 +50,7 @@ public class DbTemplate implements ServerComponent {
     Connection destConnection = null;
     ResultSet destResultSet = null;
     PreparedStatement destStatement = null;
+    int count = 0;
     try {
       sourceConnection = source.getConnection();
       sourceStatement = sourceConnection.createStatement();
@@ -71,7 +66,7 @@ public class DbTemplate implements ServerComponent {
         String insertSql = new StringBuilder().append("INSERT INTO ").append(table).append("(").append(Joiner.on(",").join(columnNames))
           .append(") VALUES(").append(StringUtils.repeat("?", ",", columnNames.length)).append(")").toString();
         destStatement = destConnection.prepareStatement(insertSql);
-        int count = 0;
+
         do {
           copyColumns(sourceResultSet, destStatement, columnNames, columnTypes);
           count++;
@@ -86,6 +81,9 @@ public class DbTemplate implements ServerComponent {
         destStatement.executeBatch();
         destConnection.commit();
       }
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("  " + count + " rows of " + table + " copied in " + (System.currentTimeMillis() - startup) + " ms");
+      }
     } catch (SQLException e) {
       LOG.error("Fail to copy table " + table, e);
       throw new IllegalStateException("Fail to copy table " + table, e);

sonar-core/src/main/java/org/sonar/core/persistence/DryRunDatabaseFactory.java

@@ -21,6 +21,8 @@ package org.sonar.core.persistence;
 
 import com.google.common.io.Files;
 import org.apache.commons.dbcp.BasicDataSource;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.sonar.api.ServerComponent;
 import org.sonar.api.issue.Issue;
 import org.sonar.api.platform.ServerFileSystem;
@@ -33,6 +35,7 @@ import java.io.IOException;
 import java.sql.SQLException;
 
 public class DryRunDatabaseFactory implements ServerComponent {
+  private static final Logger LOG = LoggerFactory.getLogger(DryRunDatabaseFactory.class);
   private static final String DIALECT = "h2";
   private static final String DRIVER = "org.h2.Driver";
   private static final String URL = "jdbc:h2:";
@@ -47,6 +50,7 @@ public class DryRunDatabaseFactory implements ServerComponent {
   }
 
   public byte[] createDatabaseForDryRun(@Nullable Long projectId) {
+    long startup = System.currentTimeMillis();
     String name = serverFileSystem.getTempDir().getAbsolutePath() + "db-" + System.nanoTime();
 
     try {
@@ -56,6 +60,17 @@ public class DryRunDatabaseFactory implements ServerComponent {
       copy(source, destination, projectId);
       close(destination);
 
+      if (LOG.isDebugEnabled()) {
+        File dbFile = new File(name + ".h2.db");
+        long size = dbFile.length();
+        long duration = System.currentTimeMillis() - startup;
+        if (projectId == null) {
+          LOG.debug("Dry Run Database created in " + duration + " ms, size is " + size + " bytes");
+        } else {
+          LOG.debug("Dry Run Database for project " + projectId + " created in " + duration + " ms, size is " + size + " bytes");
+        }
+      }
+
       return dbFileContent(name);
     } catch (SQLException e) {
       throw new SonarException("Unable to create database for DryRun", e);