ConfigurationSet.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.configuration;
 
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.impl.util.FileUtil;
 
public class ConfigurationSet {
 
  private static final String
          CONFIGURATION_FOLDER = "/WEB-INF/_zul-site/conf";
  private final String confKey;
  private Document doc;
 
  public ConfigurationSet(String confKey) {
    this.confKey = confKey;
  }
 
  public void setChildrenValue(Path path, String element, String name, List<String> values) {
    try {
      loadSet();
      path.setDoc(doc);
      path.setChildrenValue(element, name, values);
      saveSet();
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  public void setChildrenValues(Path path, String element, String name[], List<String[]> values) {
    try {
      loadSet();
      path.setDoc(doc);
      path.setChildrenValues(element, name, values);
      saveSet();
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  public void setNodeValue(Path path, String name, String value) {
    try {
      loadSet();
      path.setDoc(doc);
      path.setNodeValue(name, value);
      saveSet();
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  public List<String> getChildrenValue(Path path, String element, String name) {
    try {
      loadSet();
      path.setDoc(doc);
      return path.getChildrenValue(element, name);
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
    return null;
  }
 
  public List<String[]> getChildrenValues(Path path, String element, String names[]) {
    try {
      loadSet();
      path.setDoc(doc);
      return path.getChildrenValues(element, names);
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
    return null;
  }
 
  public String getNodeValue(Path path, String name) {
    try {
      loadSet();
      path.setDoc(doc);
      return path.getNodeValue(name);
    } catch (JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
    return null;
  }
 
  public Document getDocument() {
    loadSet();
    return doc;
  }
 
  public void setDocument(Document doc) {
    this.doc = doc;
    saveSet();
  }
 
  private void saveSet() {
    try {
      File folder = new File(ElephantContext.getRealPath(CONFIGURATION_FOLDER));
      if(!folder.exists()) folder.mkdirs();
      try (OutputStreamWriter fw = FileUtil.getFileWriter(
              ElephantContext.getRealPath(CONFIGURATION_FOLDER + "/" + convertName(confKey) + ".xml"))) {
        Format fm = Format.getPrettyFormat();
        fm.setEncoding(ElephantContext.getEncoding());
        XMLOutputter xo = new XMLOutputter(fm);
        xo.output(doc, fw);
      }
    } catch (IOException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  private void loadSet() {
    SAXBuilder builder = new SAXBuilder();
    try {
      File confFile = new File(ElephantContext.getRealPath(CONFIGURATION_FOLDER + "/" + convertName(confKey) + ".xml"));
      if(confFile.exists()) {
        doc = builder.build(confFile);
      } else {
        doc = new Document(new Element("elephant-configuration"));
      }
    } catch (IOException | JDOMException ex) {
      Logger.getLogger(ConfigurationSet.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  private String convertName(String confKey) {
    return confKey.replaceAll("[^A-Za-z0-9]", "");
  }
 
}