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very simplistic error handling

This commit is contained in:
xvrl 2013-03-05 12:41:44 -08:00
parent 28fe206404
commit 614d7801a4
1 changed files with 10 additions and 5 deletions
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15
client/src/main/java/com/metamx/druid/sql/SQLRunner.java
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@ -20,11 +20,10 @@ import com.metamx.druid.result.TimeseriesResultValue;
import com.metamx.druid.sql.antlr4.DruidSQLLexer;
import com.metamx.druid.sql.antlr4.DruidSQLParser;
import org.antlr.v4.runtime.ANTLRInputStream;
import org.antlr.v4.runtime.BailErrorStrategy;
import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.ConsoleErrorListener;
import org.antlr.v4.runtime.TokenStream;
import org.antlr.v4.runtime.misc.ParseCancellationException;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.GnuParser;
import org.apache.commons.cli.HelpFormatter;
@ -74,14 +73,20 @@ public class SQLRunner
DruidSQLLexer lexer = new DruidSQLLexer(stream);
TokenStream tokenStream = new CommonTokenStream(lexer);
DruidSQLParser parser = new DruidSQLParser(tokenStream);
parser.setErrorHandler(new BailErrorStrategy());
lexer.removeErrorListeners();
parser.removeErrorListeners();
lexer.addErrorListener(ConsoleErrorListener.INSTANCE);
parser.addErrorListener(ConsoleErrorListener.INSTANCE);
try {
DruidSQLParser.QueryContext queryContext = parser.query();
if(parser.getNumberOfSyntaxErrors() > 0) throw new IllegalStateException();
// parser.setBuildParseTree(true);
// System.err.println(q.toStringTree(parser));
} catch(ParseCancellationException e) {
System.out.println(e.getCause().getMessage());
} catch(Exception e) {
String msg = e.getMessage();
if(msg != null) System.err.println(e);
System.exit(1);
}