Re: [ANN] Munich Lambda Meetups
Thanks! Great idea, posted! On Fri, Dec 13, 2013 at 11:08 AM, Philipp Meier phme...@gmail.com wrote: Hi, Am Donnerstag, 12. Dezember 2013 18:54:03 UTC+1 schrieb Alex P: We (Munich Lambda[1]) are organising Meetups, dedicated to Functional Programming, and Clojure specifically. I suggest to post this also to the (very silent) google group clojure-de. -billy. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Buffy The ByteBuffer Slayer, Clojure library to working with binary data
@Cesar I've made a little advancement on dynamic encoding/decoding, here's a gist with a proof of concept: https://gist.github.com/ifesdjeen/7902409 On Wed, Dec 4, 2013 at 8:28 AM, Cesar Canassa cesar.cana...@gmail.comwrote: Hi, I see that the repeated-type requires a constant repeat count. Are you planning to include a more dynamic version à la Gloss prefixes/headers? The lib looks really nice. Binary handling libraries are really helpful. Thanks, Cesar Canassa On Mon, Dec 2, 2013 at 7:09 PM, Alex P oleksandr.pet...@gmail.com wrote: It's different in a way we manipulate the data: We've opted out for default-lazy way (you're getting and setting separate values instead of serialising/deserialising an entire payload). Another difference is that we don't have Lamina as a loaded artifact (which may not be an issue for majority of people, but was for us because of an internal version conflict with some other library). Obviously, there are ways around it, but we tried to bring in minimum possible amount of dependencies, and be able to use it with Netty4 (which is currently underrepresented in Clojure world). There are other subtle difference, but I don't think they're worth mentioning, Gloss is a great library, but Buffy is doing things in a subtly different way. Main purpose (as we're using it) - for off-heap storage / data structures, and for binary protocol implementations in Clojure (right now, we have a sketch of Cassandra binary protocol implemented on top of Buffy, although I'm not sure wether it's going to be production-ready any time soon). Thanks for props! On Saturday, November 30, 2013 10:33:31 PM UTC+1, Thomas wrote: Looks really really great and could you please explain how it differs from gloss [1]. Any advantages? Disadvantages? Thanks Thomas [1] https://github.com/ztellman/glosshttps://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fztellman%2Fglosssa=Dsntz=1usg=AFQjCNEEBWzFouSZ3s8uPpizBue7fuhzQA On Friday, November 29, 2013 10:15:45 PM UTC, Alex P wrote: Buffy [1] is a Clojure library to work with Binary Data, write complete binary protocol implementations in clojure, store your complex data structures in an off-heap chache, read binary files and do everything you would usually do `ByteBuffer`. Main features motivation to write it * partial deserialization (read and deserialise parts of a byte buffer) * named access (access parts of your buffer by names) * composing/decomposing from key/value pairs * pretty hexdump * many useful default types that you can combine and extend easily Data types include: * primitives, such as `int32`, `boolean`, `byte`, `short`, `medium`, `float`, `long` * arbitrary-length `string` * byte arrays * composite types (combine any of primitives together) * repeated type (repeat any primitive arbitrary amount of times in payload) * enum type (for mapping between human-readable and binary representation of constants) Buffy has been serving us well for recent time, and no major issues were revealed. However, until it reaches GA, we can't guarantee 100% backward compatibility, although we're thought it through very well and used our best knowledge to make it right. Buffy is a ClojureWerkz project, same as Monger, Elastisch, Cassaforte, Neocons, Meltdown and many others. [1] https://github.com/clojurewerkz/buffy [2] http://clojurewerkz.org -- Alex P http://clojurewerkz.org http://twitter.com/ifesdjeen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message
Re: [ANN] Buffy The ByteBuffer Slayer, Clojure library to working with binary data
I've added 32-bits based bit type to Buffy: https://github.com/clojurewerkz/buffy#bit-type Does it suit your needs? If not, what length of bits do you require? On Wed, Dec 4, 2013 at 3:58 PM, Rob Day robert@merton.oxon.org wrote: On 29 November 2013 22:15, Alex P oleksandr.pet...@gmail.com wrote: Buffy [1] is a Clojure library to work with Binary Data, write complete binary protocol implementations in clojure, store your complex data structures in an off-heap chache, read binary files and do everything you would usually do `ByteBuffer`. Is there any plan to support bit-fields? My main interest at present is the Diameter protocol, where some individual bits in the header are true/false flags - Gloss decodes that nicely into a sequence of bools, but I can't see similar support in Buffy. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Buffy The ByteBuffer Slayer, Clojure library to working with binary data
I've added a missing option for wrapped buffers: https://github.com/clojurewerkz/buffy#buffer-types On Wed, Dec 4, 2013 at 9:28 AM, Ulises ulises.cerv...@gmail.com wrote: While we're on the subject, I found no way of decoding/interpreting an already existing sequence (ByteBuffer) of bytes, but only one that had been created with compose-buff. Am I missing something? On 4 December 2013 07:28, Cesar Canassa cesar.cana...@gmail.com wrote: Hi, I see that the repeated-type requires a constant repeat count. Are you planning to include a more dynamic version à la Gloss prefixes/headers? The lib looks really nice. Binary handling libraries are really helpful. Thanks, Cesar Canassa On Mon, Dec 2, 2013 at 7:09 PM, Alex P oleksandr.pet...@gmail.com wrote: It's different in a way we manipulate the data: We've opted out for default-lazy way (you're getting and setting separate values instead of serialising/deserialising an entire payload). Another difference is that we don't have Lamina as a loaded artifact (which may not be an issue for majority of people, but was for us because of an internal version conflict with some other library). Obviously, there are ways around it, but we tried to bring in minimum possible amount of dependencies, and be able to use it with Netty4 (which is currently underrepresented in Clojure world). There are other subtle difference, but I don't think they're worth mentioning, Gloss is a great library, but Buffy is doing things in a subtly different way. Main purpose (as we're using it) - for off-heap storage / data structures, and for binary protocol implementations in Clojure (right now, we have a sketch of Cassandra binary protocol implemented on top of Buffy, although I'm not sure wether it's going to be production-ready any time soon). Thanks for props! On Saturday, November 30, 2013 10:33:31 PM UTC+1, Thomas wrote: Looks really really great and could you please explain how it differs from gloss [1]. Any advantages? Disadvantages? Thanks Thomas [1] https://github.com/ztellman/gloss On Friday, November 29, 2013 10:15:45 PM UTC, Alex P wrote: Buffy [1] is a Clojure library to work with Binary Data, write complete binary protocol implementations in clojure, store your complex data structures in an off-heap chache, read binary files and do everything you would usually do `ByteBuffer`. Main features motivation to write it * partial deserialization (read and deserialise parts of a byte buffer) * named access (access parts of your buffer by names) * composing/decomposing from key/value pairs * pretty hexdump * many useful default types that you can combine and extend easily Data types include: * primitives, such as `int32`, `boolean`, `byte`, `short`, `medium`, `float`, `long` * arbitrary-length `string` * byte arrays * composite types (combine any of primitives together) * repeated type (repeat any primitive arbitrary amount of times in payload) * enum type (for mapping between human-readable and binary representation of constants) Buffy has been serving us well for recent time, and no major issues were revealed. However, until it reaches GA, we can't guarantee 100% backward compatibility, although we're thought it through very well and used our best knowledge to make it right. Buffy is a ClojureWerkz project, same as Monger, Elastisch, Cassaforte, Neocons, Meltdown and many others. [1] https://github.com/clojurewerkz/buffy [2] http://clojurewerkz.org -- Alex P http://clojurewerkz.org http://twitter.com/ifesdjeen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To
Re: [ANN] Buffy The ByteBuffer Slayer, Clojure library to working with binary data
@Rob I have a working prototype of bits, which are encoded from 32 flags and decoded back to them. I've added a couple of helper methods such as `set-bits-at` and `get-set-bits` and so on to facilitate it. Although I recommend using enums for that (which is possible in majority of cases). I'll release it shortly and will give an additional notice @Ulisses Yes, that's been missing in the released version. I'll add it shortly. Working on a patch, should be available by monday. You can always fork add it, we love patches! @Cesar I haven't planned to do any dynamic payloads, although I'll add a couple of examples on how I'm doing same thing while parsing Cassandra protocol. Since their types are dynamic (for instance, string type consists of long and sequence of ASCII chars), I do have some version remotely resembling what you mention. Although since I haven't yet found an elegant way, I can only provide a hint on how to implement it. Will provide docs for that together with the rest of patches in work. On Wed, Dec 4, 2013 at 3:58 PM, Rob Day robert@merton.oxon.org wrote: On 29 November 2013 22:15, Alex P oleksandr.pet...@gmail.com wrote: Buffy [1] is a Clojure library to work with Binary Data, write complete binary protocol implementations in clojure, store your complex data structures in an off-heap chache, read binary files and do everything you would usually do `ByteBuffer`. Is there any plan to support bit-fields? My main interest at present is the Diameter protocol, where some individual bits in the header are true/false flags - Gloss decodes that nicely into a sequence of bools, but I can't see similar support in Buffy. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [ANN] Buffy The ByteBuffer Slayer, Clojure library to working with binary data
@Thomas, let me know if you run into any problems. Since the project is quite young, I'm very open to add a couple of features. Rob, Ulisses and Cesar have done a very nice job providing some very nice ideas! On Sat, Dec 7, 2013 at 12:05 AM, Oleksandr Petrov oleksandr.pet...@gmail.com wrote: @Rob I have a working prototype of bits, which are encoded from 32 flags and decoded back to them. I've added a couple of helper methods such as `set-bits-at` and `get-set-bits` and so on to facilitate it. Although I recommend using enums for that (which is possible in majority of cases). I'll release it shortly and will give an additional notice @Ulisses Yes, that's been missing in the released version. I'll add it shortly. Working on a patch, should be available by monday. You can always fork add it, we love patches! @Cesar I haven't planned to do any dynamic payloads, although I'll add a couple of examples on how I'm doing same thing while parsing Cassandra protocol. Since their types are dynamic (for instance, string type consists of long and sequence of ASCII chars), I do have some version remotely resembling what you mention. Although since I haven't yet found an elegant way, I can only provide a hint on how to implement it. Will provide docs for that together with the rest of patches in work. On Wed, Dec 4, 2013 at 3:58 PM, Rob Day robert@merton.oxon.orgwrote: On 29 November 2013 22:15, Alex P oleksandr.pet...@gmail.com wrote: Buffy [1] is a Clojure library to work with Binary Data, write complete binary protocol implementations in clojure, store your complex data structures in an off-heap chache, read binary files and do everything you would usually do `ByteBuffer`. Is there any plan to support bit-fields? My main interest at present is the Diameter protocol, where some individual bits in the header are true/false flags - Gloss decodes that nicely into a sequence of bools, but I can't see similar support in Buffy. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: graphs library?
In ClojureWerkz[1], there're some projects, for example, Titan[2]. Zach Maril [3] is taking care of them, mostly. [1] http://clojurewerkz.org [2] https://github.com/clojurewerkz/titanium [3] https://twitter.com/zackmaril On Mon, Dec 2, 2013 at 3:01 PM, Paweł Rozynek pro...@gmail.com wrote: hello quick question: is there any good graphs related library? the one that implements data structures and search/traverse or some other algorithms in a nice fashion. googling found me nothing useful for my simple needs, neo4j client libs at best. thanks for responses PR -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojure Jruby (Ruby on Rails) Interop
Forgot to mention, Zweikopf comes as a Ruby gem and as a Clojure library. You should make a decision though wether you're running Ruby scripting container from Clojure or start Clojure runtime from Ruby... On Mon, Sep 9, 2013 at 5:50 PM, Oleksandr Petrov oleksandr.pet...@gmail.com wrote: I've been working with an application that written in Ruby and Clojure. Nothing forbids you from using some messaging system for communication between Ruby and Clj, although we required direct access to Ruby from Clojure and vice versa. That's pretty much how Zweikopf was born: http://github.com/ifesdjeen/zweikopf With Zweikopf you can call Ruby code from Clojure and Clojure code from Ruby, given that Runtime was registered properly. You can convert any Clojure data structure to Ruby one and back, custom serialisation, circular dependency detection included. I would suggest not using any serialisation means if you intend running both languages in a single process / JVM. That would add a significant overhead and you won't be able to have direct access to whatever class you may need at given time without wrapping it into some RPC container. On Mon, Sep 9, 2013 at 4:47 PM, rdelcueto rdelcu...@gmail.com wrote: Hey Ron, Thanks for your response. Digging deeper into my question... When I read about the Torquebox Immutant duet, I thought it was particularly interesting solution, because it was fairly easy to deploy and both processes would live inside a JVM environment. I was impressed by how Clojure data structures mapped to Ruby structures and vice-versa, it seemed to provide a very clean and idiomatic messaging platform. Plus it would provide tools for caching, clustering, and what not. Still I wasn't very keen on the JRuby subject, since It's known to have compatibility issues with certain gems. Yesterday while researching on the subject I found about ZeroMQ. Do you have any particular reason to use RabbitMQ over other messaging libraries? Are there any caveats to your interop model? How portable is deploying a site using a messaging solution such as RabbitMQ? I also found out about Google's Protocol Buffers, they seemed like a lightweight solution to pass language agnostic data structures through the messaging infrastructure. Do messages need to be encapsulated somehow, or is this actually unnecessary? How it's done in your case? Regarding security and sensible information interop; Should messages be encrypted? Should they be encrypted as a whole message or partially (only sensible data)? What are the performance implications of this pipeline? Is the overhead and footprint of such setup (Ruby + Messaging Broker + ClojureJVM) big enough, for it to be worth thinking on writing everything in Clojure (using the Luminus framework)? On Monday, September 9, 2013 8:10:41 AM UTC-5, Ron Toland wrote: At Rewryte, we use Rails for the web frontend and Clojure for the data processing backend for exactly the reasons you described. We use RabbitMQ to communicate between the two. This maintains separation between the two apps (no JRuby required), and lets us scale them both independently, while taking advantage of each language/framework's strengths. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Clojure Jruby (Ruby on Rails) Interop
I've been working with an application that written in Ruby and Clojure. Nothing forbids you from using some messaging system for communication between Ruby and Clj, although we required direct access to Ruby from Clojure and vice versa. That's pretty much how Zweikopf was born: http://github.com/ifesdjeen/zweikopf With Zweikopf you can call Ruby code from Clojure and Clojure code from Ruby, given that Runtime was registered properly. You can convert any Clojure data structure to Ruby one and back, custom serialisation, circular dependency detection included. I would suggest not using any serialisation means if you intend running both languages in a single process / JVM. That would add a significant overhead and you won't be able to have direct access to whatever class you may need at given time without wrapping it into some RPC container. On Mon, Sep 9, 2013 at 4:47 PM, rdelcueto rdelcu...@gmail.com wrote: Hey Ron, Thanks for your response. Digging deeper into my question... When I read about the Torquebox Immutant duet, I thought it was particularly interesting solution, because it was fairly easy to deploy and both processes would live inside a JVM environment. I was impressed by how Clojure data structures mapped to Ruby structures and vice-versa, it seemed to provide a very clean and idiomatic messaging platform. Plus it would provide tools for caching, clustering, and what not. Still I wasn't very keen on the JRuby subject, since It's known to have compatibility issues with certain gems. Yesterday while researching on the subject I found about ZeroMQ. Do you have any particular reason to use RabbitMQ over other messaging libraries? Are there any caveats to your interop model? How portable is deploying a site using a messaging solution such as RabbitMQ? I also found out about Google's Protocol Buffers, they seemed like a lightweight solution to pass language agnostic data structures through the messaging infrastructure. Do messages need to be encapsulated somehow, or is this actually unnecessary? How it's done in your case? Regarding security and sensible information interop; Should messages be encrypted? Should they be encrypted as a whole message or partially (only sensible data)? What are the performance implications of this pipeline? Is the overhead and footprint of such setup (Ruby + Messaging Broker + ClojureJVM) big enough, for it to be worth thinking on writing everything in Clojure (using the Luminus framework)? On Monday, September 9, 2013 8:10:41 AM UTC-5, Ron Toland wrote: At Rewryte, we use Rails for the web frontend and Clojure for the data processing backend for exactly the reasons you described. We use RabbitMQ to communicate between the two. This maintains separation between the two apps (no JRuby required), and lets us scale them both independently, while taking advantage of each language/framework's strengths. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: ring 1.2.0 setup
It looks all fine to me,
Here's a repo where i've put Enlive, Ring and Compojure together :
https://github.com/ifesdjeen/enlive-ring
You can run it using ring: https://github.com/weavejester/lein-ring
Let me know if it works for you, otherwise would you mind to push code
somewhere in a gist on in repo so that we could see what's up
On Sun, Sep 8, 2013 at 7:43 AM, Mono monosij.for...@gmail.com wrote:
I am following the book 'Clojure Programming' and have some questions on
setting up ring.
I have been using the latest versions of ring version 1.2.0. Also using
compojure, enlive but taken them out for this post.
...
The Clojure project is set up fine and imports libraries and gives no
problems in Eclipse.
I am using JDK 1.7 on Ubuntu 13.04.
(defproject startingclojure 0.1.0-SNAPSHOT
:description FIXME: write description
:url http://example.com/FIXME;
:license {:name Eclipse Public License
:url http://www.eclipse.org/legal/epl-v10.html}
:dependencies [[org.clojure/clojure 1.5.1]
[ring 1.2.0]])
Ring libraries are imported fine. I have compojure and enlive also as part
of project but not shown here.
No errors in Eclipse.
...
I have tried various approaches but my require is as you shown:
(ns startingclojure.app
(:require [ring.adapter.jetty :as jetty]))
...
However my jetty just won't run:
(def server (jetty/run-jetty #'app {:port 8080 :join? true}))
Always gives this error:
CompilerException java.lang.RuntimeException: No such namespace: jetty,
compiling:(NO_SOURCE_PATH:1:**13)
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Re: How do you configure your Ring apps?
We're using Clojure code for configuration. In essence, it looks pretty much like: https://gist.github.com/ifesdjeen/440320a52f4edeedfd1a And you can run it as: lein run --config config/development.clj On Sun, Sep 8, 2013 at 10:07 PM, Gordon Stratton gordon.strat...@gmail.comwrote: James, Plug much appreciated - Nomad looks great! On Sun, Sep 8, 2013 at 7:09 PM, James Henderson james.hender...@likely.co wrote: Hi Gordon/all, Hope you'll forgive the plug, but it sounds like Nomad does what you want here. In particular, it allows you to store configuration for multiple different environments as a simple EDN config file in your project repo (Gordon's 'global.clj'), meaning that it's versioned with the rest of your project code (i.e. there's no need to configure Puppet etc separately, and keep the project and Puppet versions co-ordinated). It also allows for 'private config files' (Gordon's 'local.clj'), to store passwords etc that you don't want in version control. HTH! James -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: ANN Introducing EEP, a young [event] stream processing library
RingBuffer operates in it's own pool, adding notifications blocks RingBuffer's yielding, therefore makes notify function block eternally. New version containing a bugfix for that problem, together with throughput tests was added and pushed to Clojars: [clojurewerkz/eep 1.0.0-alpha4] Please use alpha4 if you use RingBuffer dispatcher. This problem does not occur with other dispatcher types. On Fri, Sep 6, 2013 at 6:08 PM, Michael Klishin michael.s.klis...@gmail.com wrote: 2013/9/6 Ulises ulises.cerv...@gmail.com I'm sure it's a bit early but is there a mailing list for this? I've ran into trouble trying EEP on a really simple flow (the even vs. odds in the docs.) and I'd like to ask a few questions. Now there is: https://groups.google.com/forum/#!forum/clojure-event-processing Authors of other stream processing libraries are very welcome to join! -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[ANN] Cassaforte 1.2.0 is released
Cassaforte [1] is a Clojure client for Apache Cassandra 1.2+. It is built around CQL 3 and focuses on ease of use. You will likely find that using Cassandra from Clojure has never been so easy. 1.2.0 is a minor release that introduces one minor feature, fixes a couple of bugs, and makes Cassaforte compatible with Cassandra 2.0. Release notes: http://blog.clojurewerkz.org/blog/2013/09/07/cassaforte-1-dot-2-0-is-released/ 1. http://clojurecassandra.info/ http://clojurememcached.info/ -- Alex P https://github.com/ifesdjeen https://twitter.com/ifesdjeen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[ANN] EEP (Embedded Event Processing) 1.0.0-alpha4 is released
EEP [1], Clojure Embedded Event Processing library 1.0.0-apha4 is released. EEP is c library for lightweight embedded event processing, it combines a lightweight generic event handling system, multiple windowed stream operations, aggregations and multiple buffer types. New release contains several improvements, including update of Meltdown [2], Clojure interface to Reactor [3] (foundation library for asynchronous processing on JVM) and a fix for bug, that was causing emitter block on high throughput. ChangeLog: https://github.com/clojurewerkz/eep/blob/master/Changelog.md 1. https://github.com/clojurewerkz/eep 2. https://github.com/clojurewerkz/meltdown 3. https://github.com/reactor/reactor -- Alex P https://github.com/ifesdjeen https://twitter.com/ifesdjeen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: ANN Introducing EEP, a young [event] stream processing library
EEP is an appropriate choice when: * you have to do processing on a single machine, or can split processing to several machines using downstreams which will forward processing from end-observer to emitter on a different machine * if you want it to be very fast and want to have pluggable backends. EEP is based on Meltdown[1] (bindings for Reactor from Pivotal), and supports several routing mechanisms * if you'd like to crunch numbers or raw data * if you work with streams that are coming via network and want to analyse/reduce them to something meaningful EEP is a set of high-level operations for Meltdown, such as windows (tumbling, sliding, monotonic and so on), and statistical functions (stats part is currently in works, but it will be not that easy to cover everything, so there will be still a need for writing own stats. It helps to keep things reusable, I've done some prototyping for future storm-based project with meltdown/eep, which helped me to get everything straight on local machine, prototype fast and then think about how I'd like to convert it to storm topology. I would say that EEP can't replace Aleph and it's not our goal (even though we'll support Reactor-tcp [3] quite soon). It's somewhat similar to Lamina, which is backing Aleph, but our goal was to make it possible to have named events and handers bound to named events. Anonymous graphs are supported by Meltdown and are closer to what Lamina offers. Major advantage is of course underlying RingBuffer (Disruptor) [4] and other backends offered by Reactor itself. [1] https://github.com/clojurewerkz/meltdown [2] https://github.com/reactor/reactor [3] https://github.com/reactor/reactor/tree/master/reactor-tcp [4] http://lmax-exchange.github.io/disruptor/ On Sat, Aug 31, 2013 at 5:07 AM, Mikera mike.r.anderson...@gmail.comwrote: Looks very interesting, thanks for sharing! Could you summarise how this fits in the ecosystem relative to Storm, Aleph etc? When should EEP be the most appropriate choice? On Saturday, 31 August 2013 05:02:27 UTC+8, Michael Klishin wrote: On behalf of the ClojureWerkz team [1], I'm happy to announce our new project, EEP (for Embedded Event Processing). Read the announcement: http://blog.clojurewerkz.org/**blog/2013/08/29/stream-** processing-with-eep/http://blog.clojurewerkz.org/blog/2013/08/29/stream-processing-with-eep/ The library is young and definitely could use better documentation but it's mature enough to start gathering feedback from the rest of the community. Please give it a try. There will be a couple more exiciting announcements from ClojureWerkz in the next few weeks. So watch this space. I'd like to thank Alex (http://twitter.com/ifesdjeen) and his dog Huskell (https://twitter.com/**huskelldog https://twitter.com/huskelldog) for driving this project. 1. http://clojurewerkz.org -- MK http://github.com/**michaelklishin http://github.com/michaelklishin http://twitter.com/**michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: ANN Introducing Route One
It actually doesn't do anything Clout does. Latest modifications actually make it 100% complementary to clout, so now you can do: (defroute about /about)(defroute documents /docs/:title) (compojure/defroutes main-routes (compojure/GET about-template request (handlers.root/root-page request)) ;; will use /about as a template (compojure/GET documents-template request (handlers.root/documents-page request)) ;; will use /documents as a template (route/not-found Page not found)) Meaning that on Route One side you specify the way you generate url from parts, and clout takes same template and makes urls parseable. To sum it up: Clout only does route recognition (URL = route), while Route One does only URL generation (route = URL) Thanks! On Tue, Aug 13, 2013 at 7:12 PM, Baishampayan Ghose b.gh...@gmail.comwrote: Curious, how does it differ from Clout? ~BG On Tue, Aug 13, 2013 at 9:38 PM, Michael Klishin michael.s.klis...@gmail.com wrote: On behalf of the ClojureWerkz team, I'm happy to announce our not-so-new project that has recently reached 1.0.0-rc1 stage: Route One [1]. Route One is a route generation library complimentary to Clout, part of Compojure. It takes a route definition and parameters and produces a URL/URI/path. It can be used in any application that may need to generate URLs/URIs/paths. 1.0.0-rc1 release notes: http://blog.clojurewerkz.org/blog/2013/08/12/route-one-1-dot-0-0-rc1-is-released/ Documentation and examples: https://github.com/clojurewerkz/route-one#documentation--examples 1. http://github.com/clojurewerkz/route-one -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Baishampayan Ghose b.ghose at gmail.com -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- alex p -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: deploying clojure/compojure web apps
We're using that technique for both long-running server processes and small web applications, i've covered in a blog post some time ago: http://coffeenco.de/articles/how_to_deploy_clojure_code.html Basically, create a jar and run it from a jar. If you don't want to embed jetty, you can deploy to jetty container. If you want to have uninterrupted deployments, use nginx and multiple sever socket backends, kill old app after new app's startup. As reg. configuration, you can check out a little application I wrote on GitHub: Here's a config file: https://github.com/ifesdjeen/upload-challenge/blob/master/config/production.clj Here's a primitive way to read it: https://github.com/ifesdjeen/upload-challenge/blob/master/src/uploadchallenge/conf.clj There are also scripts for deployment and so on, kind of a complete setup: https://github.com/ifesdjeen/upload-challenge Not sure how common our practice is, but we do it that way. Have fun! On Wed, Jan 9, 2013 at 12:38 AM, Josh Kamau joshnet2...@gmail.com wrote: I am new to clojure. My question is: Whats the common practice when it comes to deploying webapps built on compojure? running via lein ring server or creating a war file ? I would also like to know which is the best way to put load configuration files i.e using properties file... or using a reader to load .clj file with a hashmap def? -- alex p -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
