XML-RPC Server for LabVIEW Version 1.1.0
Mark E. Smith
Sandia National Laboratories
mesmith@sandia.gov
This release fixes two primary bugs
1) Single quotes, which are allowable on attribute values according to the XML 1.0 Spec, were not correctly handled. Thanks to Richard Graham for identifying this bug and providing a fix (now incorporated into the project).
2) The server unintentionally blocked on some method calls and became unresponsive while the method call executed. This has been corrected and new methods will be launched asynchronously as fast as the server can process them. If one tries to call a method that is busy, an XML-RPC fault will be returned immediately since this server does not support reentrant method calls. If one needs re-entrancy, build a wrapper method that launches the reentrant instances. Or just catch the fault and try again until the method becomes available.
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XML-RPC Server for LabVIEW Version 1.0.0
Mark E. Smith
Sandia National Laboratories
mesmith@sandia.gov
This LabVIEW Project (8.5.1 and 7.1.1) provides
1) a LabVIEW XML-RPC server - accepts TCP/IP connections and calls XML-RPC Enabled LabVIEW functions
2) XML-RPC Message Builder tools - Allows conversion of supported LabVIEW data types to XML-RPC data types
3) XML-RPC Parser tools - converts XML-RPC data to supported LabVIEW data types
4) Method Template,vit - wraps LV VIs to create XML-RPC callable methods
This project is useful to allow any language that supports XML-RPC (most any, including Java, .NET, Perl, and Python - see http://www.xmlrpc.com/ for details) to call a LabVIEW built function. One example is for a Java application to control and collect data from a remote LabVIEW server. This server could be a real-time LabVIEW server (cRIO, for example) since this server should run on any LabVIEW target (including Linux and RT) and is compatible with LabVIEW 7.X - I say should be because I have not had the opportunity to test on a RT or Linux target but there are no dependencies in the code that aren't available on LVRT or Linux.
Is XML-RPC still useful given LabVIEW 8.6's Web Services capability? I don't know - I do know that XML-RPC is a lightweight implementation supported by many languages so the answer is probably "yes". XML-RPC complements rather than competes with the ReSTful architecture of the new 8.6 Web Services.
Getting Started:
Use the "Set Server State.vi" to start and stop the server. The "Call Generate Sine Wave.vi" demonstrates calling a LabVIEW function (the Sine Wave Generator) as an XML-RPC method. The actual method called is under XML-RPC Methods - open it to see how the XML-RPC protocol is converted to LabVIEW args and the LabVIEW output is converted to XML-RPC and returned to the server. Potentially any LabVIEW side function or VI that you create could be enclosed in this wrapper and called by anything (Java, Python, .NET, etc) that has XML-RPC support.
License
This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.
LabVIEW XML-RPC （190个子文件） 
XML-RPC.aliases 49B XML-RPC Server.aliases 49B XML-RPC.aliases 49B XML-RPC.aliases 49B Connection Parameters.ctl 11KB methodCall.ctl 9KB structMember.ctl 7KB methodResponse.ctl 7KB Connection Parameters.ctl 7KB Connection Parameters.ctl 7KB XML-RPC Server.ctl 6KB methodCall.ctl 6KB methodCall.ctl 6KB methodResponse.ctl 5KB structMember.ctl 5KB methodResponse.ctl 5KB structMember.ctl 5KB XML-RPC Server.ctl 5KB XML-RPC Server.ctl 5KB LabEquipment.ico 5KB LabEquipment.ico 5KB XML-RPC.lvproj 159KB XML-RPC.lvproj 95KB
Fault Log.txt 12KB ReadMe.txt 3KB Fault Log.txt 2KB XML-RPC Server.vi 250KB XML-RPC Server.vi 97KB XML-RPC Server.vi 96KB Call Generate Sine Wave.vi 84KB Base64Encoder.vi 83KB Generate Sine Wave.vi 78KB Set Server State.vi 78KB ValueAsInt.vi 71KB Base64Decoder.vi 71KB XML-RPC Request Parser.vi 70KB ValueAsBoolean.vi 64KB ValueAsDouble.vi 64KB Check for Log File.vi 62KB TCP Read All.vi 62KB GetStructMembersAsNameAndValue.vi 60KB Log_Error.vi 60KB Log Fault.vi 58KB ValueAsString.vi 57KB ValueAsBase64.vi 55KB Dialog Test.vi 54KB Launch Method.vi 52KB ArrayAsStringArray.vi 52KB ValueAsDateTime.vi 49KB fault message.vi 47KB temp.vi 46KB Check for All Content.vi 44KB XML-RPC-LV client.vi 43KB holder.vi 42KB XML-RPC Response Parser.vi 42KB Start Server.vi 40KB LJPulseGenerator.vi 37KB Generate Sine Wave.vi 36KB Generate Sine Wave.vi 36KB XMLdoublequote.vi 35KB ArrayAsDoubles.vi 35KB ArrayAsIntegers.vi 35KB Call Generate Sine Wave.vi 35KB Call Generate Sine Wave.vi 33KB struct.vi 33KB call message.vi 32KB temp.vi 32KB Check_If_File_or_Directory_Exists.vi 32KB Base64Encoder.vi 31KB Base64Encoder.vi 31KB DoubleAsArray.vi 31KB IntegerAsArray.vi 31KB Set Server State.vi 30KB StringAsArray.vi 30KB Set Server State.vi 30KB ArrayAsStrings.vi 29KB XML-RPC Request Parser.vi 29KB XML-RPC Request Parser.vi 29KB TCP Read All.vi 29KB TCP Read All.vi 29KB LJDiscoveryUDP.vi 29KB Log_Error.vi 28KB Base64Decoder.vi 28KB Base64Decoder.vi 28KB ValueAsInt.vi 28KB ValueAsInt.vi 28KB GetStructMembersAsNameAndValue.vi 28KB GetStructMembersAsNameAndValue.vi 28KB error to fault.vi 27KB temp.vi 26KB Dialog Test.vi 26KB Dialog Test.vi 26KB ValueAsDouble.vi 26KB ValueAsDouble.vi 26KB ValueAsBoolean.vi 26KB ValueAsBoolean.vi 26KB Launch Method.vi 25KB Launch Method.vi 25KB response header.vi 25KB TimeStampAsISO8601Value.vi 25KB共 190 条
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