HTMLHelper.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.html;
 
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.impl.util.Localizer;
import org.turro.i18n.I_;
 
public class HTMLHelper extends HTMLGenerator {
  protected IConstructor constructor = null;
  
  public HTMLHelper(IConstructor constructor, Writer out) {
    super(out);
    if(out == null) {
      try {
        setOut(constructor.getOut());
      } catch (IOException ex) {
        Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      }
    }
    this.constructor = constructor;
  }
  
  public HTMLHelper(IConstructor constructor) {
    super(null);
    this.constructor = constructor;
    try {
      setOut(constructor.getOut());
    } catch (IOException ex) {
      Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
  
  public HTMLHelper(Writer out) {
    super(out);
  }
  
  @Override
  public HTMLGenerator write(String value) {
    if(value == null) return this;
    if(constructor != null) {
      try {
        constructor.processOutput((PrintWriter) out, value);
      } catch (ServletException ex) {
        Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      } catch (IOException ex) {
        Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      }
    }
    else {
      super.write(value);
    }
    return this;
  }
  
  public void writeMacro(String value) {
    super.write(value);
  }
  
  public void writeln(String value) {
    if(value == null) return;
    if(constructor != null) {
      try {
        constructor.processOutput((PrintWriter) out, value + "\n");
      } catch (ServletException ex) {
        Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      } catch (IOException ex) {
        Logger.getLogger(HTMLHelper.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      }
    }
    else {
      super.write(value + "\n");
    }
  }
  
  public void writeDate(Date date, String mode) {
    Localizer localizer = constructor.getLocalizer();
    write(localizer.parseValue("date", mode, date));
  }
  
  public void writeNumber(Number number, String mode) {
    Localizer localizer = constructor.getLocalizer();
    write(localizer.parseValue("number", mode, number));
  }
  
  public void writeBytes(long bytes) {
    Localizer localizer = constructor.getLocalizer();
    write(localizer.parseValue("bytes", null, Long.valueOf(bytes)));
  }
  
  public void writeBoolean(boolean value) {
    write(I_.get(value ? "true" : "false"));
  }
  
}