//   Copyright 2012 Georg-August-Universität Göttingen, Germany
//
//   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 de.ugoe.cs.autoquest.plugin.http.commands;

import java.util.Collection;
import java.util.List;

import de.ugoe.cs.autoquest.CommandHelpers;
import de.ugoe.cs.autoquest.eventcore.Event;
import de.ugoe.cs.autoquest.plugin.http.HTTPLogParser;
import de.ugoe.cs.util.console.Command;
import de.ugoe.cs.util.console.Console;
import de.ugoe.cs.util.console.GlobalDataContainer;

/**
 * <p>
 * Command to parse a file with sessions monitored by AutoQUESTs HTTP monitor.
 * </p>
 * 
 * @author Patrick Harms
 * @version 1.0
 */
public class CMDparseHTTP implements Command {

    /*
     * (non-Javadoc)
     * 
     * @see de.ugoe.cs.util.console.Command#run(java.util.List)
     */
    @Override
    public void run(List<Object> parameters) {
        String filename = null;
        String sequencesName = "sequences";

        try {
            filename = (String) parameters.get(0);
            if (parameters.size() >= 2) {
                sequencesName = (String) parameters.get(1);
            }
        }
        catch (Exception e) {
            throw new IllegalArgumentException("missing parameter for file name");
        }

        HTTPLogParser parser = new HTTPLogParser();

        try {
            parser.parseFile(filename);
        }
        catch (Exception e) {
            Console.printerrln("Could not parse " + filename + ": " + e.getMessage());
            return;
        }

        Collection<List<Event>> sequences = parser.getSequences();

        if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
            CommandHelpers.dataOverwritten(sequencesName);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see de.ugoe.cs.util.console.Command#help()
     */
    @Override
    public String help() {
        return "parseHTTP <filename> [<sequencesName>]";
    }

}