This allows us to exploid Java 8 streams and Java 5 for-each
loops. The returned Collections are usually unmodifiable. We decided
against returning Iterable because this would mean determining the
size in O(n) compared to Collection.size() which is often faster
(e.g. O(1)).
This commit renames classes as follows:
* TCPConnection --> XMPPTCPConnection
* BOSHConnection --> XMPPBOSHConnection
There are two reasons for this rename. First, it is there to indicate
that the classes actually _are_ XMPP connections, using different
transport mechanisms. Second, it makes auto-completion in IDEs easier,
the developer can type XMPP<complete> and choose the right backend.
in cases where a 'null' FromMatchesFilter was used and the processed
message would have a non-null 'from' attribute.
Thanks to sylvia for reporting this.
Caching of DNS RR should happen on the lowest possible layer, not within Smack:
- dnsjava does it's own caching
- resolving via the javax API should use the OS's caching (if any)
We don't need dozens layers of DNS RR caching.
Also change StringUtils.escapeForXML() and Packet.toXML() to return
CharSequence instead of String. XmlStringBuilder now has 'optX' methods.
Remove XmlUtils in favor of XmlStringBuilder
If whitespace (e.g. \n \t) needs to be preserved, then XML elements
should be used instead of attributes. Since we do this now in
DirectoryRosterStore, there is also no longer a need for an
specialized StringUtils.escapeForXML().
Also introduce XmlStringBuilder, which should become the default way
to implement Packet.toXML() and the like.
This is initial impementation of XEP-0332 (SMACK-552) -
HTTP over XMPP transport.
Created extensions, providers and unit tests.
Two features are missing: jingle and sipub.
There is a unsolveable race condition between the connection state and
sendPacket(), i.e. the connection could go down, right after the
method calling sendPacket is called, but before sendPacket() is
invoked. Before this change, sendPacket() has thrown an unchecked
IllegalStateException, which could be ignored by the Smack user, who
would also not notice the race condition. We have decided to throw a
checked Exception in this case now, to make the Smack user aware of
this situation.
SMACK-426
Rework StringUtils.escapeForXML() so that it can be used also for
StringUtils.xmlAttribEncodeBinary(). escapeForXML() now uses a
switch/case statement, which should leave the (JIT) compiler more room
for optimizations.
Removing the "do not escape unicode character references", because
this behavior, introduced with
8264ebdfb5, is incorrect.
