JsonVisualConstraints.java

Go to the documentation of this file.

/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2023 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.visual;
 
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.function.Consumer;
import org.turro.elephant.context.ElephantContext;
import org.turro.file.CachedFileContent;
import org.turro.file.Document;
import org.turro.log.WebLoggers;
import org.turro.reflection.JSONSerializer;
 
public class JsonVisualConstraints extends HashMap<String, JsonVisualConstraint> {
 
  /* Load */
  
  private static CachedFileContent<JsonVisualConstraints> CACHED = CachedFileContent.<JsonVisualConstraints>instance();
  
  public static JsonVisualConstraints load(String visualFile, Consumer<JsonVisualConstraints> defaults) {
    File file = Document.from(convert(visualFile)).document();
    return CACHED.constructor(() -> {
      JsonVisualConstraints lvc = new JsonVisualConstraints();
      defaults.accept(lvc);
      save(visualFile, lvc);
      return lvc;
    }).loader(f -> {
      try {
        JSONSerializer ser = new JSONSerializer(true);
        return ser.fromJson(Document.from(f).content(), JsonVisualConstraints.class);
      } catch (IOException ex) {
        WebLoggers.severe(JsonVisualConstraints.class).exception(ex).log();
        return null;
      }
    }).load(visualFile, file);
  }
  
  private static void save(String visualFile, JsonVisualConstraints jvc) {
    try {
      JSONSerializer ser = new JSONSerializer(jvc, true);
      Document.from(convert(visualFile)).content(ser.toJson());
    } catch (IOException ex) {
      WebLoggers.info(JsonVisualConstraints.class).exception(ex).log();
    }
  }
  
  private static String convert(String visualFile) {
    if(!visualFile.contains("/")) {
      visualFile = "/WEB-INF/elephant/conf/visuals/json-" + visualFile + "-visual.json";
    }
    return ElephantContext.getRealPath(visualFile);
  }
 
}