From 55ccbf149980b06c7b7effa36871ffbdf50550fa Mon Sep 17 00:00:00 2001
From: Robert Godfrey <rgodfrey@apache.org>
Date: Wed, 28 Dec 2011 13:02:41 +0000
Subject: QPID-3714 : [Java] Performance Improvements

Persistence:

Store message in same transaction as enqueue if possible

Memory:

Remove unnecessary (un)boxing
Reduce unnecessary copying of message data
Cache short strings
Cache queues for a given routing key on an Exchange
(0-9) Use a fixed size buffer for preparing frames to write out

Other:

Reduce calls to System.currentTimeMillis
(0-10) Special case immutable RangeSets, in particular RangeSets of a single range/point
(0-10) Special case delivery properties and message properties in headers
(0-9) send commit-ok as soon as data committed to store
Cache publishing access control queries
(0-9) Optimised long and int typed values for FieldTables
(0-9) Retain FieldTable encoded form
(0-9) Cache queue and topic destinations


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1225178 13f79535-47bb-0310-9956-ffa450edef68
---
 qpid/java/common/templates/method/version/MethodBodyClass.vm | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'qpid/java/common/templates/method/version/MethodBodyClass.vm')

diff --git a/qpid/java/common/templates/method/version/MethodBodyClass.vm b/qpid/java/common/templates/method/version/MethodBodyClass.vm
index ce8a453eeb..0e444b87df 100644
--- a/qpid/java/common/templates/method/version/MethodBodyClass.vm
+++ b/qpid/java/common/templates/method/version/MethodBodyClass.vm
@@ -46,8 +46,9 @@
  
 package org.apache.qpid.framing.amqp_$version.getMajor()_$version.getMinor();
 
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
+import java.io.DataInput;
+import org.apache.qpid.codec.MarkableDataInput;
+import java.io.DataOutput;
 import java.io.IOException;
 import java.util.HashMap;
 
@@ -58,7 +59,7 @@ public class ${javaClassName} extends AMQMethodBody_$version.getMajor()_$version
 {
     private static final AMQMethodBodyInstanceFactory FACTORY_INSTANCE = new AMQMethodBodyInstanceFactory()
     {
-        public AMQMethodBody newInstance(DataInputStream in, long size) throws AMQFrameDecodingException, IOException
+        public AMQMethodBody newInstance(MarkableDataInput in, long size) throws AMQFrameDecodingException, IOException
         {
             return new ${javaClassName}(in);
         }
@@ -86,7 +87,7 @@ public class ${javaClassName} extends AMQMethodBody_$version.getMajor()_$version
     
     // Constructor
 
-    public ${javaClassName}(DataInputStream buffer) throws AMQFrameDecodingException, IOException
+    public ${javaClassName}(MarkableDataInput buffer) throws AMQFrameDecodingException, IOException
     {
 #foreach( $field in $method.ConsolidatedFields )
         _$field.Name = read$field.getEncodingType()( buffer );
@@ -171,7 +172,7 @@ public class ${javaClassName} extends AMQMethodBody_$version.getMajor()_$version
         return size;        
     }
 
-    public void writeMethodPayload(DataOutputStream buffer) throws IOException
+    public void writeMethodPayload(DataOutput buffer) throws IOException
     {
 #foreach( $field in $method.ConsolidatedFields )
         write$field.getEncodingType()( buffer, _$field.Name );
-- 
cgit v1.2.1