org.mfcrawler.model.export.config.LoadApplicationConfig.java Source code

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Here is the source code for org.mfcrawler.model.export.config.LoadApplicationConfig.java

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/*
Mini Focused Crawler : focused web crawler with a simple GUI
Copyright (C) 2013  lbertelo
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
    
This program 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.mfcrawler.model.export.config;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.json.simple.JSONValue;
import org.mfcrawler.model.pojo.ApplicationConfig;

/**
 * Allows to load and save the application configuration
 * 
 * @author lbertelo
 */
public class LoadApplicationConfig {

    /**
     * Filename of the application configuration
     */
    private static final String APPLICATION_CONFIG_FILENAME = "applicationConfig.json";

    /**
     * Last opened project key in json configuration file
     */
    private static final String AC_LAST_PROJECT = "lastOpenedProject";

    /**
     * User agent key in json configuration file
     */
    private static final String AC_USER_AGENT = "userAgent";

    /**
     * Page request timeout key in json configuration file
     */
    private static final String AC_PAGE_TIMEOUT = "pageRequestTimeout";

    /**
     * Robots.txt request timeout key in json configuration file
     */
    private static final String AC_ROBOTS_TIMEOUT = "robotsRequestTimeout";

    /**
     * Forbidden file extensions key in json configuration file
     */
    private static final String AC_FORBIDDEN_EXTENSIONS = "forbiddenFileExtensions";

    /**
     * Proxy use key in json configuration file
     */
    private static final String AC_PROXY_USE = "proxyUse";

    /**
     * Proxy host key in json configuration file
     */
    private static final String AC_PROXY_HOST = "proxyHost";

    /**
     * Proxy port key in json configuration file
     */
    private static final String AC_PROXY_PORT = "proxyPort";

    /**
     * Load the application configuration
     * @return the application configuration
     */
    @SuppressWarnings("unchecked")
    public static ApplicationConfig loadApplicationConfig() {
        ApplicationConfig applicationConfig = new ApplicationConfig();

        File applicationConfigFile = new File(APPLICATION_CONFIG_FILENAME);
        if (applicationConfigFile.exists()) {
            try {
                BufferedReader bufferedReader = new BufferedReader(new FileReader(applicationConfigFile));
                Map<String, Object> jsonMap = (Map<String, Object>) JSONValue.parse(bufferedReader);

                applicationConfig.setLastOpenedProject((String) jsonMap.get(AC_LAST_PROJECT));
                applicationConfig.setUserAgent((String) jsonMap.get(AC_USER_AGENT));
                applicationConfig.setPageRequestTimeout(((Long) jsonMap.get(AC_PAGE_TIMEOUT)).intValue());
                applicationConfig.setRobotsRequestTimeout(((Long) jsonMap.get(AC_ROBOTS_TIMEOUT)).intValue());
                applicationConfig.setForbiddenFileExtensions((String) jsonMap.get(AC_FORBIDDEN_EXTENSIONS));
                applicationConfig.setProxyUse((Boolean) jsonMap.get(AC_PROXY_USE));
                applicationConfig.setProxyHost((String) jsonMap.get(AC_PROXY_HOST));
                applicationConfig.setProxyPort(((Number) jsonMap.get(AC_PROXY_PORT)).intValue());
            } catch (Exception e) {
                Logger.getLogger(LoadApplicationConfig.class.getName()).log(Level.SEVERE, "Error to read config",
                        e);
            }
        } else {
            saveApplicationConfig(applicationConfig);
        }
        return applicationConfig;
    }

    /**
     * Save the application configuration
     * @param applicationConfig the application configuration
     */
    public static void saveApplicationConfig(ApplicationConfig applicationConfig) {
        try {
            Map<String, Object> jsonMap = new HashMap<String, Object>();
            jsonMap.put(AC_LAST_PROJECT, applicationConfig.getLastOpenedProject());
            jsonMap.put(AC_USER_AGENT, applicationConfig.getUserAgent());
            jsonMap.put(AC_PAGE_TIMEOUT, applicationConfig.getPageRequestTimeout());
            jsonMap.put(AC_ROBOTS_TIMEOUT, applicationConfig.getRobotsRequestTimeout());
            jsonMap.put(AC_FORBIDDEN_EXTENSIONS, applicationConfig.getForbiddenFileExtensions());
            jsonMap.put(AC_PROXY_USE, applicationConfig.getProxyUse());
            jsonMap.put(AC_PROXY_HOST, applicationConfig.getProxyHost());
            jsonMap.put(AC_PROXY_PORT, applicationConfig.getProxyPort());

            File applicationConfigFile = new File(APPLICATION_CONFIG_FILENAME);
            BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(applicationConfigFile));
            bufferedWriter.write(JSONValue.toJSONString(jsonMap));
            bufferedWriter.close();
        } catch (Exception e) {
            Logger.getLogger(LoadApplicationConfig.class.getName()).log(Level.SEVERE, "Error to write config", e);
        }
    }

}