hu.bme.mit.theta.xta.dsl.XtaDslManager Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of theta-xta Show documentation

Xta subproject in the Theta model checking framework

The newest version!

/*
 *  Copyright 2024 Budapest University of Technology and Economics
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package hu.bme.mit.theta.xta.dsl;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;

import org.antlr.v4.runtime.CharStream;
import org.antlr.v4.runtime.CharStreams;
import org.antlr.v4.runtime.CommonTokenStream;

import hu.bme.mit.theta.xta.XtaSystem;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslLexer;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslParser;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslParser.XtaContext;

public final class XtaDslManager {

    private XtaDslManager() {
    }

    public static XtaSystem createSystem(final String inputString) throws IOException {
        final InputStream stream = new ByteArrayInputStream(
                inputString.getBytes(StandardCharsets.UTF_8.name()));
        return createSystem(stream);
    }

    public static XtaSystem createSystem(final InputStream inputStream) throws IOException {
        final CharStream input = CharStreams.fromStream(inputStream);

        final XtaDslLexer lexer = new XtaDslLexer(input);
        final CommonTokenStream tokens = new CommonTokenStream(lexer);
        final XtaDslParser parser = new XtaDslParser(tokens);

        final XtaContext context = parser.xta();
        final XtaSpecification scope = XtaSpecification.fromContext(context);
        final XtaSystem system = scope.getSystem();

        return system;
    }
}