On Wed, May 17, 2017 at 2:55 PM, Simon Chemouil <ecli...@mithrandir.net> wrote:
> Michael Lipp a écrit le 16/05/2017 à 23:39 : > > I have code that relies on a directory tree of resources to be available > > as NIO FileSystem. [...] This returns a URI with > > scheme "jar", which can be passed to FileSystems.newFileSystem. When > > running in the OSGi environment, I get a URI with the "bundle" scheme... > > My conclusion is that there is no proper way to do it without being the > system bundle. The thing is Nio Filesystems have non-blocking IO methods > (eg AsynchronousFileChannels)[...] Or they could > throwUnsupportedOperationException, but that would probably break your > consumer code, and it's a bit sad considering that's a big part of what Nio > filesystems add to the File API! One could reuse the implementation from the zip filesystem provider- jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystemProvider.java <http://hg.openjdk.java.net/jdk9/jdk9/jdk/file/ef9954f6896b/src/jdk.zipfs/share/classes/jdk/nio/zipfs/ZipFileSystemProvider.java> . @Override public AsynchronousFileChannel newAsynchronousFileChannel(Path path, Set<? extends OpenOption> options, ExecutorService exec, FileAttribute<?>... attrs) throws IOException { throw new UnsupportedOperationException(); } OT: > (I happen to wrap it in reactive streams [2] for composition) [2] http://www.reactive-streams.org/ The reactive-streams API is provided by the nested interfaces in jdk9s java.util.concurrent.Flow (Doug Lea original here <http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/jdk8/java/util/concurrent/Flow.java?view=markup>). Of course, they aren't actual sub-types of the org.reactivestreams.* classes, so wrap and delegate. A basic-but-Doug-Lea push-stream with flow control is included in java.util.concurrent.SubmissionPublisher <http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/jdk8/java/util/concurrent/SubmissionPublisher.java?revision=1.6&view=markup> ; rxjava2 Flowable's are nicer. Simon
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