Using the NVO Registry WebService from Java and C#Below I briefly describe how to make a simple client for the registry prototype.The Service URLFirst we need the service URL which is http://sdssdbs1.stsci.edu/nvo/registry/registry.asmx | ||||||||
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Next we need some Client code - here is a simple client in Java | ||||||||
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import org.us_vo.www.*; class RegClient { public static void main (String[] args) throws Exception { RegistryLocator loc = new RegistryLocator(); RegistrySoap reg = loc.getRegistrySoap(); ArrayOfSimpleResource reses = null; if ( args.length ==0 ) { reses = reg.dumpRegistry(); } else { reses = reg.queryRegistry(args[0]); } for (int i = 0 ; i < reses.getSimpleResource().length; i++) { print(reses.getSimpleResource(i)); } } public static void print(SimpleResource res ) { System.out.println(res.getTitle()+ "|"+ res.getPublisher() + "|" + res.getMaxSR()); } } | ||||||||
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> > | AXIS always creates Localtor classes - where the service url may be changed. Simple Resource is the object returned by the registry. Making the client workObviously of we compile this none of the stub classes exist so we need to create them. If you have AXIS installed and a class path set up as detailed on WebgridTutorial then this is a simple matter of typing:java org.apache.axis.wsdl.WSDL2Java "http://sdssdbs1.stsci.edu/nvo/registry/registry.asmx?WSDL"Note: The \" are really important. ?WSDL is a convention for getting the WSDL frm a service. You will have seen this plenty earlier in the tutorial. Now the client code should comile so Assuming the above code is in a file called RegClient.java we type : javac RegClient.javaand we may run it as follows java RegClient "Subject like '%cosmology%'" NOAO Science Archive|National Optical Astronomy Observatories|2.0 Hubble Space Telescope|Space Telescope Science Institute/MAST|180.0 Advanced Camera for Surveys|Space Telescope Science Institute/MAST|180.0 Faint Object Camera|Space Telescope Science Institute/MAST|180.0 .... | |||||||
-- WilliamOMullane - 02 Oct 2003
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