cypher.feature.parser.ResultsParser.java Source code

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Here is the source code for cypher.feature.parser.ResultsParser.java

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/*
 * Copyright (c) 2002-2016 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package cypher.feature.parser;

import cypher.feature.parser.generated.FeatureResultsLexer;
import cypher.feature.parser.generated.FeatureResultsParser;
import cypher.feature.parser.matchers.ValueMatcher;
import org.antlr.v4.runtime.ANTLRInputStream;
import org.antlr.v4.runtime.CommonTokenStream;
import org.antlr.v4.runtime.tree.ParseTreeWalker;

public class ResultsParser {
    private FeatureResultsParser parser;
    private FeatureResultsLexer lexer;
    private ParseTreeWalker walker;

    ResultsParser() {
        this.lexer = new FeatureResultsLexer(new ANTLRInputStream(""));
        this.parser = new FeatureResultsParser(new CommonTokenStream(lexer));
        this.walker = new ParseTreeWalker();
    }

    Object parseParameter(String value, CypherParametersCreator listener) {
        lexer.setInputStream(new ANTLRInputStream(value));
        walker.walk(listener, parser.value());
        return listener.parsed();
    }

    ValueMatcher matcherParse(String value, CypherMatchersCreator listener) {
        lexer.setInputStream(new ANTLRInputStream(value));
        walker.walk(listener, parser.value());
        return listener.parsed();
    }

}