private static CQLQueryResults queryStandard(
CQLQuery query, String targetServiceURL, GlobusCredential cred)
throws RemoteDataServiceException {
LOG.debug("Querying " + targetServiceURL + " with standard CQL 2 query mechanism");
DataServiceClient client = null;
try {
client = new DataServiceClient(targetServiceURL, cred);
} catch (MalformedURIException ex) {
throw new RemoteDataServiceException("Invalid target service URL:" + targetServiceURL, ex);
} catch (RemoteException ex) {
String message = "Problem creating client for " + targetServiceURL + ": " + ex.getMessage();
LOG.error(message, ex);
throw new RemoteDataServiceException(message, ex);
}
// if we have been supplied a credential, make sure we always use it
if (cred != null) {
client.setAnonymousPrefered(false);
}
CQLQueryResults results = null;
try {
results = client.executeQuery(query);
} catch (RemoteException e) {
String message =
"Problem querying remote service " + targetServiceURL + ": " + e.getMessage();
LOG.error(message, e);
throw new RemoteDataServiceException(message, e);
}
return results;
}
private static CQLQueryResults queryStandardCql1(
CQLQuery query, String targetServiceURL, GlobusCredential cred)
throws RemoteDataServiceException {
LOG.debug("Querying " + targetServiceURL + " with deprecated CQL 1 query mechanism");
DataServiceClient client = null;
try {
client = new DataServiceClient(targetServiceURL, cred);
} catch (MalformedURIException ex) {
throw new RemoteDataServiceException("Invalid target service URL:" + targetServiceURL, ex);
} catch (RemoteException ex) {
String message = "Problem creating client for " + targetServiceURL + ": " + ex.getMessage();
LOG.error(message, ex);
throw new RemoteDataServiceException(message, ex);
}
// if we have been supplied a credential, make sure we always use it
if (cred != null) {
client.setAnonymousPrefered(false);
}
LOG.debug("Converting CQL 2 to CQL 1 for " + targetServiceURL);
gov.nih.nci.cagrid.cqlquery.CQLQuery cql1Query = null;
try {
cql1Query = CQL2toCQL1Converter.convertToCql1Query(query);
} catch (QueryConversionException ex) {
throw new RemoteDataServiceException(
"Error converting query to CQL 1 for " + targetServiceURL + ": " + ex.getMessage(), ex);
}
CQLQueryResults results = null;
try {
if (LOG.isDebugEnabled()) {
try {
StringWriter s = new StringWriter();
SerializationUtils.serializeCQLQuery(cql1Query, s);
LOG.debug(
"Sending converted CQL 1 query to service ("
+ targetServiceURL
+ "):\n"
+ s.toString());
s.close();
} catch (Exception e) {
LOG.error("Problem in debug printout of CQL query: " + e.getMessage(), e);
}
}
gov.nih.nci.cagrid.cqlresultset.CQLQueryResults cql1Results = client.query(cql1Query);
results = CQL1ResultsToCQL2ResultsConverter.convertResults(cql1Results);
} catch (RemoteException e) {
String message =
"Problem querying remote service " + targetServiceURL + ": " + e.getMessage();
LOG.error(message, e);
throw new RemoteDataServiceException(message, e);
} catch (ResultsConversionException e) {
String message =
"Problem converting results from remote service "
+ targetServiceURL
+ ": "
+ e.getMessage();
LOG.error(message, e);
throw new RemoteDataServiceException(message, e);
}
return results;
}