/*
 * Copyright (C) 2000 - 2024 Silverpeas
 *
 * 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.
 *
 * As a special exception to the terms and conditions of version 3.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * Open Source Software ("FLOSS") applications as described in Silverpeas's
 * FLOSS exception.  You should have received a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * "https://www.silverpeas.org/legal/floss_exception.html"
 *
 * 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 <https://www.gnu.org/licenses/>.
 */
package org.silverpeas.core.web.jstl.constant;

import java.util.Map;

import javax.servlet.jsp.JspException;

import org.silverpeas.core.web.jstl.util.AbstractSetVarTagSupport;
import org.silverpeas.core.web.jstl.constant.reflect.ClassConstantsMap;

/**
 * Tag which establishes a scoped variable containing a Map of all
 * class constants found in a named target class.
 */
public class ConstantsMapTag extends AbstractSetVarTagSupport {

  private static final long serialVersionUID = 1L;
  private String className;

  public void setClassName(String value) {
    this.className = value;
  }

  @Override
  public int doEndTag() throws JspException {
    try {
      Map<String, Object> constantsMap = new ClassConstantsMap(this.className);
      setScopedVariable(constantsMap);
    } catch (Exception e) {
      throw new JspException("Exception setting constants map for " + this.className, e);
    }
    return EVAL_PAGE;
  }
}
