Re: [thredds] Accessing THREDDS from Java

Or just use OPenDAP  sequences for those type of datas, which actually works 
quite well if you don’t ry accessing sequences like grids.

-Roy

> On Jul 28, 2015, at 4:15 AM, Signell, Richard <rsignell@xxxxxxxx> wrote:
> 
> Christian & THREDDS enthusiasts,
> 
> So cdmremote/ncstream uses protobuf for transport, right?
> 
> So has anybody built a javascript library to access data via cdmremote?
> 
> Seems like that would be a great match, as protobuf is recognized as
> being a better choice than JSON for data-heavy web applications:
> 
> http://blog.codeclimate.com/blog/2014/06/05/choose-protocol-buffers/
> 
> and there are several existing protobuf libraries for JS, for example, this 
> one:
> https://github.com/dcodeIO/ProtoBuf.js/wiki
> 
> -Rich
> 
> On Mon, Jul 27, 2015 at 9:10 PM, Christian Ward-Garrison
> <cwardgar@xxxxxxxx> wrote:
>> Actually, this [1] is a more helpful link for cdmremote — it points to TDS
>> v5.0 documentation. At the bottom, it talks about client programs for the
>> protocol.
>> 
>> [1]
>> http://www.unidata.ucar.edu/software/thredds/v5.0/netcdf-java/reference/stream/CdmRemote.html
>> 
>> On Mon, Jul 27, 2015 at 7:06 PM, Christian Ward-Garrison <cwardgar@xxxxxxxx>
>> wrote:
>>> 
>>> Hi Antonio,
>>> 
>>> Sorry for not getting to this sooner; we were all busy with the 2015
>>> Training Workshop last week.
>>> 
>>> You may want to take a look at cdmremote [1]. It's an experimental
>>> protocol we've been developing that compares quite favorably to OPeNDAP. In
>>> terms of performance, "The java implementation of ncstream should be (close
>>> to) maximal I/O efficient." And yes, it is certainly possible for
>>> NetCDF-Java to access a THREDDS server using cdmremote as long as that
>>> server enables it as a data access service. Here [2] is an example on one of
>>> our servers.
>>> 
>>> Cheers,
>>> Christian
>>> 
>>> [1]
>>> http://www.unidata.ucar.edu/software/thredds/current/netcdf-java/reference/stream/CdmRemote.html
>>> [2]
>>> http://thredds-jumbo.unidata.ucar.edu/thredds/cdmremote/grib/NCEP/GFS/Global_0p25deg/Best?req=form
>>> 
>>> On Tue, Jul 21, 2015 at 11:26 AM, Antonio Rodriges <antonio.rrz@xxxxxxxxx>
>>> wrote:
>>>> 
>>>> Sorry for posting this question on the mail list, however I could not
>>>> find the answer after googling.
>>>> 
>>>> The THREDDS page [1] lists the supported protocols: "OPeNDAP, OGC WMS
>>>> and WCS, HTTP, and other remote data access protocols."
>>>> Also, it is noted that "The Netcdf-Java/CDM library reads NetCDF,
>>>> OpenDAP, ..."
>>>> 
>>>> My question is :
>>>> 1) what are other protocols that are supported by TDS?
>>>> 2) which protocol is the fastest? For example, has the lowest
>>>> overheads in network I/O or creating output data, etc or their is no
>>>> definite answer?
>>>> 3) is it possible to use Netcdf-Java to access TDS using other
>>>> supported protocols or Netcdf-Java can access TDS only via OpenDAP?
>>>> 
>>>> Thanks
>>>> 
>>>> [1] http://www.unidata.ucar.edu/software/thredds/current/tds/TDS.html
>>>> 
>>>> _______________________________________________
>>>> thredds mailing list
>>>> thredds@xxxxxxxxxxxxxxxx
>>>> For list information or to unsubscribe,  visit:
>>>> http://www.unidata.ucar.edu/mailing_lists/
>>>> 
>>> 
>> 
>> 
>> _______________________________________________
>> thredds mailing list
>> thredds@xxxxxxxxxxxxxxxx
>> For list information or to unsubscribe,  visit:
>> http://www.unidata.ucar.edu/mailing_lists/
> 
> 
> 
> -- 
> Dr. Richard P. Signell   (508) 457-2229
> USGS, 384 Woods Hole Rd.
> Woods Hole, MA 02543-1598
> 
> _______________________________________________
> thredds mailing list
> thredds@xxxxxxxxxxxxxxxx
> For list information or to unsubscribe,  visit: 
> http://www.unidata.ucar.edu/mailing_lists/

**********************
"The contents of this message do not reflect any position of the U.S. 
Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
***Note new address and phone***
110 Shaffer Road
Santa Cruz, CA 95060
Phone: (831)-420-3666
Fax: (831) 420-3980
e-mail: Roy.Mendelssohn@xxxxxxxx www: http://www.pfeg.noaa.gov/

"Old age and treachery will overcome youth and skill."
"From those who have been given much, much will be expected" 
"the arc of the moral universe is long, but it bends toward justice" -MLK Jr.



  • 2015 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the thredds archives: