/**
* Identifies.
*
* @param reader the catalog reader.
* @exception IOException if the catalog cannot be accessed.
* @exception QueryFailException if the query to the server is failed.
*/
public void identify(CatalogReader reader) throws IOException, QueryFailException {
// Starts the polling thread.
PollingThread thread = new PollingThread();
thread.start();
try {
Variability[] records = getSelectedRecords();
for (int i = 0; i < records.length; i++) {
CatalogStar star = records[i].getStar();
StarList l = reader.read(star.getCoor(), 0.1);
for (int j = 0; j < l.size(); j++) {
CatalogStar s = (CatalogStar) l.elementAt(j);
double radius =
star.getMaximumPositionErrorInArcsec() + s.getMaximumPositionErrorInArcsec();
double distance = star.getCoor().getAngularDistanceTo(s.getCoor());
if (distance < radius / 3600.0)
// Overwrites the already identified star.
records[i].setIdentifiedStar(s);
}
}
} finally {
// Ends the polling thread.
thread.end();
}
}
public static void main(String[] args) throws Exception {
try {
CatalogReader foo = new CatalogReader("Catalog.xml");
Map<String, TableData> catalog = foo.getCatalog();
// System.out.println (CatalogReader.printCatalog (res));
InputStreamReader converter = new InputStreamReader(System.in);
BufferedReader in = new BufferedReader(converter);
System.out.format("\nSQL>");
String soFar = in.readLine() + " ";
// loop forever, or until someone asks to quit
while (true) {
// keep on reading from standard in until we hit a ";"
while (soFar.indexOf(';') == -1) soFar += (in.readLine() + " ");
// split the string
String toParse = soFar.substring(0, soFar.indexOf(';') + 1);
soFar = soFar.substring(soFar.indexOf(';') + 1, soFar.length());
toParse = toParse.toLowerCase();
// parse it
ANTLRStringStream parserIn = new ANTLRStringStream(toParse);
SQLLexer lexer = new SQLLexer(parserIn);
CommonTokenStream tokens = new CommonTokenStream(lexer);
SQLParser parser = new SQLParser(tokens);
// if we got a quit
if (parser.parse() == false) break;
// print the results
System.out.println("RESULT OF PARSING");
System.out.println("Expressions in SELECT:");
ArrayList<Expression> mySelect = parser.getSELECT();
for (Expression e : mySelect) System.out.println("\t" + e);
System.out.println("Tables in FROM:");
Map<String, String> myFrom = parser.getFROM();
System.out.println("\t" + myFrom);
System.out.println("WHERE clause:");
Expression myWhere = parser.getWHERE();
if (myWhere != null) System.out.println("\t" + myWhere);
System.out.println("GROUPING att:");
String myGroup = parser.getGROUPBY();
if (myGroup != null) System.out.println("\t" + myGroup);
SemanticChecker sc = new SemanticChecker(mySelect, myFrom, myWhere, myGroup, catalog);
if (sc.execute() == true)
new Optimizer(mySelect, myFrom, myWhere, myGroup, catalog).execute();
else System.err.println("Semantic checking failed");
System.out.format("\nSQL>");
}
} catch (Exception e) {
System.err.println("Interpreter.main.73: error!");
}
}