[OPENJPA-1953] Copying data from inputStream to OuputStream needs appropriate buffer size

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.1.0
• Fix Version/s: 2.2.0
• Component/s: lib
• Assignee: Richard G. Curtis
• Reporter: Xiaoming Shi
• Created: 28/Feb/11 18:14
• Updated: 18/Mar/11 20:29
• Resolved: 18/Mar/11 20:29

Description

In the file:
./apache-openjpa-2.1.0-source/openjpa-lib/src/main/java/org/apache/openjpa/lib/meta/ZipStreamMetaDataIterator.java line : 119

The buffer size is fixed as 1024 bytes. With the size of the data varies, the performance can be damaged a lot.

We need an appropriate buffer size which depends on the size of the data to be copied.

This is the same as the Appache Bug (https://issues.apache.org/bugzilla/show_bug.cgi?id=32546)