Examples with AggregationDefinition org.ballerinalang.siddhi.query.api.definition.AggregationDefinition used on opensource projects

Example 6 with AggregationDefinition

use of org.ballerinalang.siddhi.query.api.definition.AggregationDefinition in project ballerina by ballerina-lang.

the class SiddhiCompiler method parseAggregationDefinition.

public static AggregationDefinition parseAggregationDefinition(String source) throws SiddhiParserException {
    ANTLRInputStream input = new ANTLRInputStream(source);
    SiddhiQLLexer lexer = new SiddhiQLLexer(input);
    lexer.removeErrorListeners();
    lexer.addErrorListener(SiddhiErrorListener.INSTANCE);
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    SiddhiQLParser parser = new SiddhiQLParser(tokens);
    parser.removeErrorListeners();
    parser.addErrorListener(SiddhiErrorListener.INSTANCE);
    ParseTree tree = parser.definition_aggregation_final();
    SiddhiQLVisitor eval = new SiddhiQLBaseVisitorImpl();
    return (AggregationDefinition) eval.visit(tree);
}