Craig Andrews 213a3fd779 Performance improvements in ShallowEtagHeaderFilter ... Prior to this change, the ShallowEtagHeaderFilter would use a ResizableByteArrayOutputStream to internally write data and calculate the ETag. While that implementation is faster than the regular ByteArrayOutputStream (since it has a better strategy for growing the internal buffer), a lot of buffer copying/writing still happens. This change adds a new FastByteArrayOutputStream implementation that internally uses a LinkedList<Byte[]> to store the content. So when writing bytes to that OutputStream implementation, new byte[] are added to the list when the previous ones are full. This saves most of the instantiating/copying operations. Note that new methods were added in DigestUtils to allow usage of Streams instead of byte[], which is more efficient in our case. Fixes #653 Issue: SPR-12081		2015-01-08 16:08:09 +01:00
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main/java	Performance improvements in ShallowEtagHeaderFilter	2015-01-08 16:08:09 +01:00
test	Performance improvements in ShallowEtagHeaderFilter	2015-01-08 16:08:09 +01:00