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DefaultTj3BookingsParser.java
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DefaultTj3BookingsParser.java
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/**
* This file is part of Project Control Center (PCC).
*
* PCC (Project Control Center) project is intellectual property of
* Dmitri Anatol'evich Pisarenko.
*
* Copyright 2010, 2011 Dmitri Anatol'evich Pisarenko
* All rights reserved
*
**/
package at.silverstrike.pcc.impl.tj3bookingsparser;
import java.io.IOException;
import java.io.InputStream;
import java.text.ParseException;
import java.util.List;
import org.antlr.runtime.ANTLRInputStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.RecognitionException;
import ru.altruix.commons.api.di.PccException;
import com.google.inject.Injector;
import at.silverstrike.pcc.api.persistence.Persistence;
import at.silverstrike.pcc.api.tj3bookingsparser.BookingTuple;
import at.silverstrike.pcc.api.tj3bookingsparser.BookingsFile;
import at.silverstrike.pcc.api.tj3bookingsparser.BookingsFile2Bookings;
import at.silverstrike.pcc.api.tj3bookingsparser.BookingsFile2BookingsFactory;
import at.silverstrike.pcc.api.tj3bookingsparser.Tj3BookingsParser;
import at.silverstrike.pcc.impl.tj3bookingsparser.grammar.BookingsLexer;
import at.silverstrike.pcc.impl.tj3bookingsparser.grammar.BookingsParser;
/**
* @author Dmitri Pisarenko
*
*/
class DefaultTj3BookingsParser implements Tj3BookingsParser {
private List<BookingTuple> bookings;
private InputStream inputStream;
private Injector injector = null;
public DefaultTj3BookingsParser() {
}
public List<BookingTuple> getBookings() {
return bookings;
}
public void setInputStream(final InputStream aInputStream) {
this.inputStream = aInputStream;
}
@Override
public void run() throws PccException {
try {
final BookingsFile bookingsFile = inputStreamToBookingsFile();
this.bookings = bookingsFileToBookings(bookingsFile);
} catch (final IOException exception) {
throw new PccException(exception);
} catch (final RecognitionException exception) {
throw new PccException(exception);
} catch (final NumberFormatException exception) {
throw new PccException(exception);
} catch (final ParseException exception) {
throw new PccException(exception);
}
}
private List<BookingTuple> bookingsFileToBookings(
final BookingsFile aBookingsFile) throws ParseException {
final BookingsFile2BookingsFactory factory = this.injector
.getInstance(BookingsFile2BookingsFactory.class);
final BookingsFile2Bookings converter = factory.create();
converter.setBookingsFile(aBookingsFile);
converter.setPersistence(this.injector.getInstance(Persistence.class));
converter.run();
return converter.getTuples();
}
private BookingsFile inputStreamToBookingsFile() throws IOException,
RecognitionException {
final BookingsLexer lexer = new BookingsLexer(new ANTLRInputStream(
this.inputStream));
final CommonTokenStream tokenStream = new CommonTokenStream(lexer);
final BookingsParser parser = new BookingsParser(tokenStream);
parser.bookingsFile();
final BookingsFile returnValue = parser.getBookingsFile();
return returnValue;
}
@Override
public void setInjector(final Injector aInjector) {
this.injector = aInjector;
}
}