source: trunk/autoquest-plugin-jfc/src/main/java/de/ugoe/cs/autoquest/plugin/jfc/commands/CMDpreprocessJFC.java @ 927

//   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.jfc.commands;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.List;

import de.ugoe.cs.util.console.Command;
import de.ugoe.cs.util.console.Console;

/**
 * <p>
 * Command to pre-process files written by EventBench's JFCMonitor. The only
 * task of the pre-processing is checking if the session was closed properly,
 * i.e., if the XML file ends with a {@code </sessions>} tag. If this is not the
 * case, the tag will be appended to the file.
 * </p>
 * 
 * @author Steffen Herbold
 * @version 1.0
 */
public class CMDpreprocessJFC implements Command {

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.util.console.Command#run(java.util.List)
         */
        @Override
        public void run(List<Object> parameters) {
                String source;
                String target;
                try {
                        source = (String) parameters.get(0);
                        target = (String) parameters.get(1);
                } catch (Exception e) {
                        throw new IllegalArgumentException();
                }

                File file = new File(source);
                InputStreamReader reader = null;
                try {
                        FileInputStream fis = new FileInputStream(file);
                        reader = new InputStreamReader(fis, "UTF-16");
                } catch (FileNotFoundException e) {
                        Console.printerrln(e.getMessage());
                        return;
                } catch (UnsupportedEncodingException e) {
                        Console.printerrln(e.getMessage());
                        return;
                }
                char[] buffer = new char[(int) file.length()];
                try {
                        reader.read(buffer);
                        reader.close();
                } catch (IOException e) {
                        Console.printerrln(e.getMessage());
                        return;
                }

                String content = new String(buffer).trim();

                OutputStreamWriter writer;
                try {
                        FileOutputStream fos = new FileOutputStream(target);
                        writer = new OutputStreamWriter(fos, "UTF-8");
                } catch (IOException e) {
                        Console.printerrln(e.getMessage());
                        return;
                }
                try {
                        writer.write(content);
                        if (!content.endsWith("</sessions>")) {
                                writer.write("</sessions>");
                        }
                        writer.close();
                } catch (IOException e) {
                        Console.printerrln(e.getMessage());
                }
        }

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.util.console.Command#help()
         */
        @Override
        public String help() {
                return "preprocessJFC <sourceFile> <targetFile>";
        }

}