> On Oct. 6, 2015, 2:39 p.m., Bernd Mathiske wrote: > > Ship It! > > Ben Mahler wrote: > I don't think we should introduce this into stout in its current form. I > realize you're planning to use this for authentication stuff, but looking at > this on its own, it seems like a confusing abstraction. Why would we couple > the notion of a Tree with the semantics around properties and property > inheritance? > > Till Toenshoff wrote: > This code is being used in libprocess. So the options are libprocess or > stout for introducing it. I believe it would be a better fit for stout than > for libprocess as it is a data structure implementation that has no threading > or process specifics. Given that it already is in a reusable state, I think > that we should go as proposed by this RR. > > Bernd Mathiske wrote: > @bmahler, what would you rather have us do? This structure is quite close > to Boost's PropertyTree > (http://www.boost.org/doc/libs/1_59_0/doc/html/property_tree.html), and we > would have loved to use that one. But it does not feature inheritance, which > seems a natural, essential thing to have in at least some trees. > > Ben Mahler wrote: > Hm... the "inheritance" stuff that you guys need seems to just be a walk > of the tree from the root to the leaf you're interested in, collecting > properties of nodes along the way. Any reason you can't layer that > functionality on top or, even better, on the side via a free standing > function so that you don't need to introduce a new data structure? > > Jie Yu wrote: > +1 if we can compose/inherit from boost property tree rather than > implementing our own.
Property tree as of the moment is not distributed with Mesos. However, there is a reason why it wasn't added, and it is that it will require a double parsing of the path (one when asking the ptree, the other manually to verify every subpath). - Alexander ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/37996/#review101639 ----------------------------------------------------------- On Oct. 7, 2015, 11:54 a.m., Alexander Rojas wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/37996/ > ----------------------------------------------------------- > > (Updated Oct. 7, 2015, 11:54 a.m.) > > > Review request for mesos, Adam B, Benjamin Hindman, Bernd Mathiske, and Till > Toenshoff. > > > Bugs: MESOS-3231 > https://issues.apache.org/jira/browse/MESOS-3231 > > > Repository: mesos > > > Description > ------- > > Introduces the `InheritanceTree` class which allows to create a tree where > nodes can be tag with some property. This property is then inherited by > children nodes. > > Two behaviors are implemented, overriding, i.e. Adding a property to the > child node of another node with a property already will result in the > ancestor property being lost. The second behavior, accumulating, takes a > function and accumulates > properties of all ancestors. > > > Diffs > ----- > > 3rdparty/libprocess/3rdparty/stout/Makefile.am > 76e1674e08bbe65a4fdf86731823a61f231d6d12 > 3rdparty/libprocess/3rdparty/stout/include/Makefile.am > 9e9c3119ad18f4cbc70c70095c71dc4fd19553df > 3rdparty/libprocess/3rdparty/stout/include/stout/inheritancetree.hpp > PRE-CREATION > 3rdparty/libprocess/3rdparty/stout/tests/CMakeLists.txt > 94292f8a46ec31bbaf6e52f48109322bbe123f70 > 3rdparty/libprocess/3rdparty/stout/tests/inheritancetree_tests.cpp > PRE-CREATION > > Diff: https://reviews.apache.org/r/37996/diff/ > > > Testing > ------- > > make check > > > Thanks, > > Alexander Rojas > >
