package dalclient;

/**
 * Call a cone search service and print a summary selected fields of the
 * results.
 *
 * Usage:	cone1 ra dec sr [serviceURL]
 *
 * Or call with no args for the built-in unit test.
 */
public class cone1 {
    // Default query params if none specified on cmdline (for unit test).
    private static final String DEF_SERVICE =
	"http://chart.stsci.edu/GSCVO/GSC22VO.jsp?";
    private static final double DEF_RA=12.0, DEF_DEC=12.0, DEF_SR=0.1;

    public static void main(String args[]) throws Exception {
	String service = DEF_SERVICE;
	double ra=DEF_RA, dec=DEF_DEC, sr=DEF_SR;
	int arg = 0;

	if (args.length == 0) {
	    // Built-in no-args unit test.
	} else if (args.length >= 3) {
	    ra = Double.parseDouble(args[arg++]);
	    dec = Double.parseDouble(args[arg++]);
	    sr = Double.parseDouble(args[arg++]);
	    if (arg < args.length) 
		service = args[arg++];
	} else {
	    System.out.println("Usage: cone1 ra dec sr [coneURL]");
	    System.exit(1);
	}

	callConeService(service, ra, dec, sr);
    }

    /* Simple test routine to call a cone search service and summarize results.
     */
    static void callConeService(String service,
	    double ra, double dec, double sr) throws Exception {

	// Get a new connection to the service.
	ConeConnection cone = new ConeConnection(service);

	// Form the query.
	ConeQuery query = cone.getConeQuery(ra, dec, sr);

	// Execute the query and fetch results.
	System.out.println("# Query: " + query.getQueryString(0));
	QueryResponse qr = query.execute();
	if (qr.getRecordCount() <= 0) {
	    System.out.println("no records matched");
	    System.exit(1);
	}

	// Summarize query response.
	{
	    int nrec = qr.getRecordCount();
	    QueryRecord r = qr.getRecord(0);
	    int nattr = (r != null) ? r.getAttributeCount() : 0;
	    System.out.println("# returns " + nrec + " records containing " +
		nattr + " attributes each");
	    System.out.println("# --- Summary output ---");
	}

	// Summarize and print selected query results.
	for (int i=0;  i < qr.getRecordCount();  i++) {
	    QueryRecord r = qr.getRecord(i);
	    String s_id, s_ra, s_dec, s_class;
	    QRAttribute v;

	    s_id = ((v = r.getAttribute("ID_MAIN")) != null) ?
		v.stringValue() : "<none>";
	    s_ra = ((v = r.getAttribute("POS_EQ_RA_MAIN")) != null) ?
		v.stringValue() : "<unknown>";
	    s_dec = ((v = r.getAttribute("POS_EQ_DEC_MAIN")) != null) ?
		v.stringValue() : "<unknown>";
	    s_class = ((v = r.getAttribute("CLASS_OBJECT")) != null) ?
		v.stringValue() : "<unknown>";

	    System.out.println("id=" + s_id + "\tra=" + s_ra +
		"\tdec=" + s_dec + "\tclass=" + s_class);
	}
    }
}