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/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012.
 * and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.eir.server.bootstrap;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.log4j.Logger;
/**
 *
 * @author kulikov
 */
public class Configuration {

    private final static String HEADER = "\n " +
            "\n";
    
    private final static String FOOTER = "";
    
    private File file;
    private File directory;
    
    private boolean isDirectory;
    private long lastModified;
    
    private Logger logger = Logger.getLogger(Configuration.class);
    
    public Configuration(String s, File directory) {
        this.directory = directory;
    }
    
    public String getBeans() throws IOException {
        String config = "";
        File[] files = directory.listFiles();
        for (File file : files) {
            if (!file.isDirectory()) {
                logger.info("Configuring " + file);
                String description = read(file);
                
                int p1 = description.indexOf("', p1);
                
                description = description.substring(p2 + 1);

                p1 = description.indexOf("', p1);
                
                description = description.substring(p2 + 1);
                
                description = description.replaceFirst("", "");
                config += "\n" + description;
            } else {
                logger.info("Reading directory " + file);
                Configuration conf = new Configuration("",file);
                config += conf.getBeans();
            }
        }                
        return config;
    }
    
    public URL getConfig() throws IOException {
        String s = HEADER + getBeans() + FOOTER;
        
        //creating temp dir on one level top
        File tempDir = new File(directory.getParent() + File.separator + "temp");
        tempDir.mkdir();
        
        //creating aggegated deployement descriptor
        String temp = tempDir.getPath() + File.separator + "deployment-beans.xml";

        //write descriptor
        FileOutputStream fout = new FileOutputStream(temp, false);
        fout.write(s.getBytes());
        fout.flush();
        fout.close();
        
        File deployment = new File(temp);
        return deployment.toURI().toURL();
    }
    
    private String read(File file) throws IOException {
        //create local buffer
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        
        //opening file
        FileInputStream fin = null;        
        try {
            fin = new FileInputStream(file);
        } catch (FileNotFoundException e) {
        }
        
        //fetching data from file to local buffer
        try {
            int b = -1;
            while ((b = fin.read()) != -1) {
                bout.write(b);
            }
        } finally {
            fin.close();
        }
        
        //creating string
        return new String(bout.toByteArray());
    }
    
    public Configuration(File file) {
        this.file = file;
        this.isDirectory = file.isDirectory();
        this.lastModified = file.lastModified();
    }
    
    public boolean isDirectory() {
        return this.isDirectory;
    }
    
    public URL getURL() {
        try {
            return file.toURI().toURL();
        } catch (MalformedURLException e) {
            return null;
        }
    }
    
    public long lastModified() {
        return lastModified;
    }
    
    public void update(long lastModified) {
        this.lastModified = lastModified;
    }
}