Introduce support for logging debug entries with Throwable (neo4j#940)

Author: injectives

driver/clirr-ignored-differences.xml

@@ -1,3 +1,10 @@
 <differences>
-<!--4.0 drivers is not API compatible with 1.0 drivers, as a result we reset API differences from 4.0.0-->
+    <!--4.0 drivers is not API compatible with 1.0 drivers, as a result we reset API differences from 4.0.0-->
+
+    <difference>
+        <className>org/neo4j/driver/Logger</className>
+        <differenceType>7012</differenceType>
+        <method>void debug(java.lang.String, java.lang.Throwable)</method>
+    </difference>
+
 </differences>

driver/src/main/java/org/neo4j/driver/Logger.java

@@ -103,6 +103,14 @@ public interface Logger
      */
     void debug( String message, Object... params );
 
+    /**
+     * Logs debug message with throwable.
+     *
+     * @param message   the message to log
+     * @param throwable the throwable to include into the log entry
+     */
+    void debug( String message, Throwable throwable );
+
     /**
      * Logs binary sent and received by this driver.
      * It is only enabled when {@link Logger#isTraceEnabled()} returns {@code true}.

driver/src/main/java/org/neo4j/driver/internal/logging/DevNullLogger.java

@@ -53,6 +53,11 @@ public void debug( String message, Object... params )
     {
     }
 
+    @Override
+    public void debug( String message, Throwable throwable )
+    {
+    }
+
     @Override
     public void trace( String message, Object... params )
     {

driver/src/main/java/org/neo4j/driver/internal/logging/JULogger.java

@@ -63,16 +63,25 @@ public void warn( String message, Throwable cause )
     @Override
     public void debug( String format, Object... params )
     {
-        if( debugEnabled )
+        if ( debugEnabled )
         {
             delegate.log( Level.FINE, String.format( format, params ) );
         }
     }
 
+    @Override
+    public void debug( String message, Throwable throwable )
+    {
+        if ( debugEnabled )
+        {
+            delegate.log( Level.FINE, message, throwable );
+        }
+    }
+
     @Override
     public void trace( String format, Object... params )
     {
-        if( traceEnabled )
+        if ( traceEnabled )
         {
             delegate.log( Level.FINEST, String.format( format, params ) );
         }

driver/src/main/java/org/neo4j/driver/internal/logging/ReformattedLogger.java

@@ -64,6 +64,15 @@ public void debug( String message, Object... params )
         }
     }
 
+    @Override
+    public void debug( String message, Throwable throwable )
+    {
+        if ( isDebugEnabled() )
+        {
+            delegate.debug( reformat( message ), throwable );
+        }
+    }
+
     @Override
     public void trace( String message, Object... params )
     {

driver/src/main/java/org/neo4j/driver/internal/logging/Slf4jLogger.java

@@ -76,6 +76,15 @@ public void debug( String message, Object... params )
         }
     }
 
+    @Override
+    public void debug( String message, Throwable throwable )
+    {
+        if ( isDebugEnabled() )
+        {
+            delegate.debug( message, throwable );
+        }
+    }
+
     @Override
     public void trace( String message, Object... params )
     {

driver/src/test/java/org/neo4j/driver/integration/LoggingIT.java

@@ -68,7 +68,7 @@ void logShouldRecordDebugAndTraceInfo()
         }
 
         // Then
-        verify( logger, atLeastOnce() ).debug( anyString(), any() );
+        verify( logger, atLeastOnce() ).debug( anyString(), any( Object[].class ) );
         verify( logger, atLeastOnce() ).trace( anyString(), any() );
     }
 }

driver/src/test/java/org/neo4j/driver/internal/DirectDriverBoltKitTest.java

@@ -78,7 +78,6 @@
 import static org.neo4j.driver.internal.logging.DevNullLogging.DEV_NULL_LOGGING;
 import static org.neo4j.driver.util.StubServer.INSECURE_CONFIG;
 import static org.neo4j.driver.util.StubServer.insecureBuilder;
-import static org.neo4j.driver.util.StubServer.start;
 import static org.neo4j.driver.util.TestUtil.asOrderedSet;
 import static org.neo4j.driver.util.TestUtil.await;
 
@@ -181,7 +180,7 @@ void shouldLogConnectionIdInDebugMode() throws Exception
             assertEquals( asList( "Foo", "Bar" ), names );
 
             ArgumentCaptor<String> messageCaptor = ArgumentCaptor.forClass( String.class );
-            verify( logger, atLeastOnce() ).debug( messageCaptor.capture(), any() );
+            verify( logger, atLeastOnce() ).debug( messageCaptor.capture(), any( Object[].class ) );
 
             Optional<String> logMessageWithConnectionId = messageCaptor.getAllValues()
                     .stream()

driver/src/test/java/org/neo4j/driver/internal/logging/PrefixedLoggerTest.java

@@ -80,7 +80,18 @@ void shouldNotDelegateDebugLogWhenDebugDisabled()
         PrefixedLogger logger = new PrefixedLogger( delegate );
         logger.debug( MESSAGE );
 
-        verify( delegate, never() ).debug( anyString(), any() );
+        verify( delegate, never() ).debug( anyString(), any( Object[].class ) );
+    }
+
+    @Test
+    void shouldNotDelegateDebugLogWithThrowableWhenDebugDisabled()
+    {
+        Logger delegate = newLoggerMock();
+
+        PrefixedLogger logger = new PrefixedLogger( delegate );
+        logger.debug( MESSAGE, mock( Throwable.class ) );
+
+        verify( delegate, never() ).debug( anyString(), any( Throwable.class ) );
     }
 
     @Test