org.xpect.ui.highlighting.XpectTokenDefProvider.java Source code

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Here is the source code for org.xpect.ui.highlighting.XpectTokenDefProvider.java

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/*******************************************************************************
 * Copyright (c) 2008,2010 itemis AG (http://www.itemis.eu) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 *******************************************************************************/
/*******************************************************************************
 * Copyright (c) 2012 itemis AG (http://www.itemis.eu) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
package org.xpect.ui.highlighting;

import java.io.InputStream;
import java.util.Map;

import org.eclipse.xtext.parser.antlr.AntlrTokenDefProvider;
import org.eclipse.xtext.parser.antlr.IAntlrTokenFileProvider;
import org.eclipse.xtext.parser.antlr.ITokenDefProvider;

import com.google.common.collect.ImmutableMap;

/**
 * @author Moritz Eysholdt - Initial contribution and API
 */
public class XpectTokenDefProvider implements ITokenDefProvider, IAntlrTokenFileProvider {

    private ImmutableMap<Integer, String> map;

    public Map<Integer, String> getTokenDefMap() {
        if (map == null) {
            AntlrTokenDefProvider provider = new AntlrTokenDefProvider();
            provider.setAntlrTokenFileProvider(this);
            map = ImmutableMap.copyOf(provider.getTokenDefMap());
        }
        return map;
    }

    public InputStream getAntlrTokenFile() {
        ClassLoader classLoader = getClass().getClassLoader();
        String resourcePath = "org/xpect/lexer/XpectHI.tokens";
        InputStream result = classLoader.getResourceAsStream(resourcePath);
        return result;
    }

}