detectAndUpgrade() shortcut on empty buffer

Signed-off-by: Ludovic Orban <lorban@bitronix.be>
2020-02-04 10:49:27 +01:00 · 2020-02-04 10:49:27 +01:00 · 58b1db610c
parent 37edc016d2
commit 58b1db610c
1 changed files with 7 additions and 0 deletions
--- a/jetty-server/src/main/java/org/eclipse/jetty/server/DetectorConnectionFactory.java
+++ b/jetty-server/src/main/java/org/eclipse/jetty/server/DetectorConnectionFactory.java
@ -218,6 +218,13 @@ public class DetectorConnectionFactory extends AbstractConnectionFactory impleme
         */
        private boolean detectAndUpgrade()
        {
+            if (BufferUtil.isEmpty(_buffer))
+            {
+                if (LOG.isDebugEnabled())
+                    LOG.debug("Detector {} skipping detection on an empty buffer", getProtocol());
+                return false;
+            }
+
            if (LOG.isDebugEnabled())
                LOG.debug("Detector {} performing detection with {} bytes", getProtocol(), _buffer.remaining());
            boolean notRecognized = true;