Hi,
I have used IronPython to successfully connect and issue an xquery to a
MarkLogic database (native XML database) using the following script:
import clr
clr.AddReferenceToFile("MarklogicXcc.dll")
import Marklogic.Xcc
import System
print ''connecting to db...''
uri = System.Uri(''xcc://adm:adm at localhost:9003'')
contentSource = Marklogic.Xcc.ContentSourceFactory.NewContentSource(uri)
print ''creating session...''
session = contentSource.NewSession()
print ''submitting query...''
query = ''let $r := //Record[@UID eq "20069812"] return
$r''
request = session.NewAdhocQuery(query)
resultSequence = session.SubmitRequest(request)
print ''printing results...''
results = resultSequence.AsString()
print results
Now, I am trying the same thing with IronRuby and here is how far I got:
require ''System, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089''
require "c:\\IronRuby\\build\\release\\MarklogicXcc.dll"
# all xcc dlls have to be in the same dir as ironruby (except for
MarklogicXcc.dll)
puts ''connecting to db...''
$uri = System::Uri.new(''xcc://admin:admin at localhost:9003'')
# help from
John Lam here...thanks!
$content_source Marklogic::Xcc::ContentSourceFactory::NewContentSource($uri)
puts ''creating session...''
$session = $content_source::NewSession()
For some reason, NewSession is not seen as a valid method. Here is part
of the interpreter''s output:
System.MissingMethodException: undefined local variable or method
`NewSession'' for
#<Marklogic::Xcc::Impl::ContentSourceImpl:0x0000058>:Ruby.Builtins.RubyClass
at Ruby.Builtins.Kernel.MethodMissing(CodeContext context, Object
self, Block
Param block, SymbolId name, Object[] args)
at Microsoft.Scripting.Utils.InvokeHelper`6.Invoke(Object arg0,
Object arg1,
Object arg2, Object arg3, Object arg4)
The NewSession method is certainly part of the Marklogic DLL. I see it
with Object Browser in Visual Studio, I used it successfully with
IronPython above and with the production code I have, which is in C#.
To make sure that I am not getting anything funny returning to
$content_source, I tried this:
$session = Marklogic::Xcc::ContentSource::NewSession("someId")
But, still got the same error message...
Any thoughts???
Thanks!
--
Posted via http://www.ruby-forum.com/.
I think instead of $content_source::NewSession() you want $content_source.NewSession() :: is a scoping operator. -Eric On Nov 29, 2007 10:00 AM, N. F. <lists at ruby-forum.com> wrote:> Hi, > > I have used IronPython to successfully connect and issue an xquery to a > MarkLogic database (native XML database) using the following script: > > import clr > clr.AddReferenceToFile("MarklogicXcc.dll") > import Marklogic.Xcc > import System > print ''connecting to db...'' > uri = System.Uri(''xcc://adm:adm at localhost:9003'') > contentSource = Marklogic.Xcc.ContentSourceFactory.NewContentSource(uri) > print ''creating session...'' > session = contentSource.NewSession() > print ''submitting query...'' > query = ''let $r := //Record[@UID eq "20069812"] return $r'' > request = session.NewAdhocQuery(query) > resultSequence = session.SubmitRequest(request) > print ''printing results...'' > results = resultSequence.AsString() > print results > > Now, I am trying the same thing with IronRuby and here is how far I got: > > require ''System, Version=2.0.0.0, Culture=neutral, > PublicKeyToken=b77a5c561934e089'' > require "c:\\IronRuby\\build\\release\\MarklogicXcc.dll" > # all xcc dlls have to be in the same dir as ironruby (except for > MarklogicXcc.dll) > puts ''connecting to db...'' > $uri = System::Uri.new(''xcc://admin:admin at localhost:9003'') # help from > John Lam here...thanks! > $content_source > Marklogic::Xcc::ContentSourceFactory::NewContentSource($uri) > puts ''creating session...'' > $session = $content_source::NewSession() > > For some reason, NewSession is not seen as a valid method. Here is part > of the interpreter''s output: > > System.MissingMethodException: undefined local variable or method > `NewSession'' for > #<Marklogic::Xcc::Impl::ContentSourceImpl:0x0000058>: > Ruby.Builtins.RubyClass > at Ruby.Builtins.Kernel.MethodMissing(CodeContext context, Object > self, Block > Param block, SymbolId name, Object[] args) > at Microsoft.Scripting.Utils.InvokeHelper`6.Invoke(Object arg0, > Object arg1, > Object arg2, Object arg3, Object arg4) > > The NewSession method is certainly part of the Marklogic DLL. I see it > with Object Browser in Visual Studio, I used it successfully with > IronPython above and with the production code I have, which is in C#. > > To make sure that I am not getting anything funny returning to > $content_source, I tried this: > $session = Marklogic::Xcc::ContentSource::NewSession("someId") > But, still got the same error message... > > Any thoughts??? > > Thanks! > -- > Posted via http://www.ruby-forum.com/. > _______________________________________________ > Ironruby-core mailing list > Ironruby-core at rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/ironruby-core/attachments/20071129/1e2c19c7/attachment.html
Eric Nicholson wrote:> I think instead of > $content_source::NewSession() > > you want > $content_source.NewSession() > > :: is a scoping operator. > > -EricThanks Eric...but still the same error. Here is the whole error output: System.MissingMethodException: undefined local variable or method `NewSession'' f or #<Marklogic::Xcc::Impl::ContentSourceImpl:0x0000058>:Ruby.Builtins.RubyClass at Ruby.Builtins.Kernel.MethodMissing(CodeContext context, Object self, Block Param block, SymbolId name, Object[] args) at Microsoft.Scripting.Utils.InvokeHelper`6.Invoke(Object arg0, Object arg1, Object arg2, Object arg3, Object arg4) at Microsoft.Scripting.Utils.ReflectedCaller.Invoke(Object[] args) at Microsoft.Scripting.Ast.MethodCallExpression.InvokeMethod(Object instance, Object[] parameters) at Microsoft.Scripting.Ast.MethodCallExpression.DoEvaluate(CodeContext contex t) at Microsoft.Scripting.Ast.ReturnStatement.DoExecute(CodeContext context) at Microsoft.Scripting.Ast.Statement.Execute(CodeContext context) at Microsoft.Scripting.Actions.StandardRule`1.ExecuteTarget(Object site, Code Context context, Object[] args) at Microsoft.Scripting.Actions.ActionBinder.UpdateSiteAndExecute[T](CodeConte xt callerContext, DynamicAction action, Object[] args, Object site, T& target, R uleSet`1& rules) at Microsoft.Scripting.Actions.FastDynamicSite`2.UpdateBindingAndInvoke(T0 ar g0) at Microsoft.Scripting.Actions.DynamicSiteHelpers.UninitializedTargetHelper`7 .FastInvoke1(FastDynamicSite`2 site, T0 arg0) at Microsoft.Scripting.Actions.FastDynamicSite`2.Invoke(T0 arg0) at helloml$mod_1.main$1() in helloml.rb:line 0 at Ruby.Runtime.RubyOps.RunMain(CodeContext context, Object main) at helloml$mod_1.Initialize(CodeContext ) in helloml.rb:line 0 at Microsoft.Scripting.ScriptCode.Run(CodeContext codeContext, Boolean tryEva luate) at Microsoft.Scripting.ScriptScope.Execute() at Ruby.Hosting.RubyCommandLine.RunFile(String path) -- Posted via http://www.ruby-forum.com/.
Eric Nicholson wrote:> I think instead of > $content_source::NewSession() > > you want > $content_source.NewSession() > > :: is a scoping operator.:: can be used to invoke methods just as well: ''foo''::reverse # => ''oof'' It just has additional functionality for locating constants in a given namespace. - Charlie
N. F.:> Now, I am trying the same thing with IronRuby and here is how far I > got: > > require ''System, Version=2.0.0.0, Culture=neutral, > PublicKeyToken=b77a5c561934e089'' > require "c:\\IronRuby\\build\\release\\MarklogicXcc.dll" > # all xcc dlls have to be in the same dir as ironruby (except for > MarklogicXcc.dll) > puts ''connecting to db...'' > $uri = System::Uri.new(''xcc://admin:admin at localhost:9003'') # help from > John Lam here...thanks! > $content_source > Marklogic::Xcc::ContentSourceFactory::NewContentSource($uri) > puts ''creating session...'' > $session = $content_source::NewSession() > > For some reason, NewSession is not seen as a valid method. Here is part > of the interpreter''s output: > > System.MissingMethodException: undefined local variable or method > `NewSession'' for > #<Marklogic::Xcc::Impl::ContentSourceImpl:0x0000058>:Ruby.Builtins.Ruby > ClassWhat''s the visibility of ContentSourceImpl type and the NewSession method? If you could do a quick dump via Reflector that would help. Thanks, -John
John Lam (DLR) wrote:> N. F.: > >> John Lam here...thanks! >> #<Marklogic::Xcc::Impl::ContentSourceImpl:0x0000058>:Ruby.Builtins.Ruby >> Class > > What''s the visibility of ContentSourceImpl type and the NewSession > method? If you could do a quick dump via Reflector that would help. > > Thanks, > -JohnThanks again John. Here is a dump via Reflector: internal class ContentSourceImpl : ContentSource { // Fields private readonly ContentSource source; // Methods internal ContentSourceImpl(ContentSource source); public Session NewSession(); public Session NewSession(string contentbaseId); public Session NewSession(string userName, string password); public Session NewSession(string userName, string password, string contentbaseId); } So, this is what I get from the call to... $content_source = Marklogic::Xcc::ContentSourceFactory::NewContentSource($uri) ...and here is the dump of that: public static ContentSource NewContentSource(Uri uri) { ContentSource source; try { source = new ContentSourceImpl(ContentSourceFactory.newContentSource(new URI(uri.ToString()))); } catch (XccConfigException exception) { throw new XccConfigException(exception); } return source; } Thanks for the help. -- Posted via http://www.ruby-forum.com/.
N.F.:> Thanks again John. Here is a dump via Reflector: > > internal class ContentSourceImpl : ContentSource { > <snip>Pure speculation, but we might be deciding that the method isn''t callable because it''s on an internal type. We need to search the class hierarchy to find the visible type so we can emit the call to the method on the visible type. Maybe there''s a spot where we don''t do that correctly. If you''re up for diving into IronRuby''s method binding logic, the place to put a breakpoint is in ironruby/runtime/RubyActionBinder.cs, MakeRuleForInvokeMember, in particular the line: RubyMethodBase method = ec.ResolveMethod(target, action.Name); At some point we''ll hit that with action.Name == "NewSession". Then step into ResolveMethod and see what happens. It should eventually get to RubyClass.TryGetClrMember with name == "NewSession". But maybe it gets lost somewhere along the way... - John
John Messerly wrote:> > If you''re up for diving into IronRuby''s method binding logic, the place > to put a breakpoint is in ironruby/runtime/RubyActionBinder.cs, > MakeRuleForInvokeMember, in particular the line: > > RubyMethodBase method = ec.ResolveMethod(target, action.Name); > > At some point we''ll hit that with action.Name == "NewSession". Then step > into ResolveMethod and see what happens. It should eventually get to > RubyClass.TryGetClrMember with name == "NewSession". But maybe it gets > lost somewhere along the way... > > - JohnThanks John...I took up the task and here is what I found out (the most important point is the last one - in uppercase - see below: - calls GetImmediateClassOf(target).ResolveInstanceMethod(name); - target has only non-public members - module is null, so it calls RubyClass result = TryGetInstanceSingletonOf(obj, out data); - calls data = TryGetInstanceData(obj); - obj (Marklogic.Xcc.Impl.ContentSourceImpl) is null inside of that - calls TryGetData(object key) -eventually returns from TryGetInstanceData with result = null - calls GetClassOf(obj, data); - AND HERE IS THE PROBLEM...I think... - inside RubyModule.cs (line 481): // skip lookup on types that are not visible or interfaces: if (_tracker != null && _tracker.Type.IsVisible && !_tracker.Type.IsInterface) { return TryGetClrMember(_tracker.Type, name, out method); } ...this if returns false and it never calls TryGetClrMember! - Nivaldo -- Posted via http://www.ruby-forum.com/.
N.F.:> - AND HERE IS THE PROBLEM...I think... > - inside RubyModule.cs (line 481): > // skip lookup on types that are not visible or interfaces: > if (_tracker != null && _tracker.Type.IsVisible && > !_tracker.Type.IsInterface) { > return TryGetClrMember(_tracker.Type, name, out method); } ...this if > returns false and it never calls TryGetClrMember! >Yup, I think you found the problem. I didn''t get a chance to look at it today, but I''ll take a look at it Monday (unless I can get Tomas to fix it :) ). Hopefully it''s an easy fix - John
John Messerly wrote:> > Yup, I think you found the problem. I didn''t get a chance to look at it > today, but I''ll take a look at it Monday (unless I can get Tomas to fix > it :) ). Hopefully it''s an easy fix > > - JohnHi John, do you (or Tomas) still plan to take a look at this? Thanks! -- Posted via http://www.ruby-forum.com/.
N.F.:> Hi John, do you (or Tomas) still plan to take a look at this? Thanks!Thanks for the ping. I think the simple fix actually works fine here. Let me know if it works for you & I''ll get it checked in. - John Index: src/ironruby/Runtime/RubyModule.cs ==================================================================--- src/ironruby/Runtime/RubyModule.cs (revision 66) +++ src/ironruby/Runtime/RubyModule.cs (working copy) @@ -483,8 +483,8 @@ return true; } - // skip lookup on types that are not visible or interfaces: - if (_tracker != null && _tracker.Type.IsVisible && !_tracker.Type.IsInterface) { + // skip lookup on interfaces: + if (_tracker != null && !_tracker.Type.IsInterface) { return TryGetClrMember(_tracker.Type, name, out method); }
John Messerly wrote:> Thanks for the ping. I think the simple fix actually works fine here. > Let me know if it works for you & I''ll get it checked in.Hi John...it worked great! Thanks so very much...I went ahead and pulled the record from the MarkLogic server and all looks good. Here is the sample code (very basic...just to show it works) in case anyone may care: require ''System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'' require "c:\\IronRuby\\build\\release\\MarklogicXcc.dll" # all xcc dlls have to be in the same dir as ironruby (except for MarklogicXcc.dll) uri = System::Uri.new(''xcc://adm:adm at localhost:9003'') content_source = Marklogic::Xcc::ContentSourceFactory::NewContentSource(uri) session = content_source::NewSession() query = ''let $r := //Record[@UID eq "200608199-060"] return $r'' request = session.NewAdhocQuery(query) resultSequence = session.SubmitRequest(request) results = resultSequence.AsString("/n") puts results -- Nivaldo -- Posted via http://www.ruby-forum.com/.
Hi, This problem reported here and fixed by John Messerly is back in the IronRuby Alpha release at http://rubyforge.org/projects/ironruby. So, the patch by John never made it "officially"? Thanks! N. F. wrote:> John Messerly wrote: >> Thanks for the ping. I think the simple fix actually works fine here. >> Let me know if it works for you & I''ll get it checked in. > > Hi John...it worked great! Thanks so very much...I went ahead and pulled > the record from the MarkLogic server and all looks good. Here is the > sample code (very basic...just to show it works) in case anyone may > care: > > require ''System, Version=2.0.0.0, Culture=neutral, > PublicKeyToken=b77a5c561934e089'' > require "c:\\IronRuby\\build\\release\\MarklogicXcc.dll" > # all xcc dlls have to be in the same dir as ironruby (except for > MarklogicXcc.dll) > > uri = System::Uri.new(''xcc://adm:adm at localhost:9003'') > content_source = > Marklogic::Xcc::ContentSourceFactory::NewContentSource(uri) > session = content_source::NewSession() > query = ''let $r := //Record[@UID eq "200608199-060"] return $r'' > request = session.NewAdhocQuery(query) > resultSequence = session.SubmitRequest(request) > results = resultSequence.AsString("/n") > puts results > > -- Nivaldo-- Posted via http://www.ruby-forum.com/.