Hi,
I'm having trouble connecting to the OVID database using jzkit. I get the following error message:
log4j:ERROR No appenders could be found for category (Z3950Origin).
log4j:ERROR Please initialize the log4j system properly.
java.lang.NullPointerException
at com.k_int.z3950.IRClient.Z3950Origin.incomingSearchResponse(Z3950Origin.java:543)
at com.k_int.z3950.util.ZEndpoint.notifyAPDUEvent(ZEndpoint.java:169)
at com.k_int.z3950.util.ZEndpoint.run(ZEndpoint.java:481)
Result: Search complete
0 recordsI can connect to other databases using the same setting but for some reason it doesn't work for ovid. My authentication details are correct as they work on endnote. Does anyone knows why this might be the case?
Thanks,
Pritika
The code looks like this:
Searchable s = new Z3950Origin();
Properties p = new Properties();
/* Ovid */
p.put("service_auth_type","3");
p.put("service_user_principal","username");
p.put("service_user_credentials","password");
p.put("ServiceHost","z3950.ovid.com"); // set target
p.put("ServicePort","210"); // set port
s.init(p);
IRQuery e = new IRQuery();
e.hints = new Hashtable();
e.hints.put("record_syntax", "marc21");
e.collections = new Vector();
/* Ovid */
e.collections.add("medl"); // set Database
e.query_syntax = "PREFIX";
e.query = "@attrset bib-1 @attr 1=1016 the";
SearchTask st = (SearchTask) s.createTask(e, null);
st.evaluate(10000); // run query for < 10 secs
System.err.println("Result: " +
st.lookupPrivateStatusCode(st.getPrivateTaskStatusCode()));
InformationFragmentSource ifs = st.getTaskResultSet();
System.err.println(ifs.getFragmentCount() + " records");