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/*******************************************************************************
 * Copyright 2011 Adrian Cristian Ionescu
 * 
 * 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 ro.zg.util.parser;

import java.util.HashMap;
import java.util.Map;

import ro.zg.util.parser.event.ConfigurableParseEventHandler;

public class ParseManager {
    private Map parsers = new HashMap();

    public ParseResponse parse(String input, ParserConfig parserConfig) throws ParserException {
	Parser p = parsers.get(parserConfig);
	if (p == null) {
	    p = new Parser();
	    p.addSymbols(parserConfig.getSymbols());
	    p.getParseContextConfig().getNestedSymbols().setCaseInsensitive(parserConfig.isCaseInsensitive());
	    ParseEventHandlerConfig parseEventHandlerConfig = parserConfig.getParseEventHandlerConfig();
	    if (parseEventHandlerConfig != null) {
		p.setHandlerFactory(new ParserHandlerFactory(new ConfigurableParseEventHandler(parseEventHandlerConfig)));
	    }
	    parsers.put(parserConfig, p);
	}
	return p.parse(input);
    }
}