/**
 * Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2006-2016
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.glite.security.voms.admin.taglib;

import java.util.Set;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;

import org.glite.security.voms.admin.persistence.model.VOMSGroup;
import org.glite.security.voms.admin.persistence.model.VOMSUser;

public class RolesTag extends TagSupport {

  /**
     * 
     */
  private static final long serialVersionUID = 1L;

  String user;

  String group;

  String var;

  public RolesTag() {

    super();
    // TODO Auto-generated constructor stub
  }

  public String getGroup() {

    return group;
  }

  public void setGroup(String group) {

    this.group = group;
  }

  public String getUser() {

    return user;
  }

  public void setUser(String user) {

    this.user = user;
  }

  public String getVar() {

    return var;
  }

  public void setVar(String var) {

    this.var = var;
  }

  public int doStartTag() throws JspException {

    VOMSUser vomsUser = (VOMSUser) pageContext.getAttribute(user,
      PageContext.REQUEST_SCOPE);

    VOMSGroup vomsGroup = (VOMSGroup) pageContext.getAttribute(group);

    if (vomsUser == null)
      throw new JspTagException(
        "No user found in org.glite.security.voms.admin.request context!");

    if ((vomsGroup == null))
      throw new JspTagException("No group found in pageContext!");

    Set roles = vomsUser.getRoles(vomsGroup);

    pageContext.setAttribute(var, roles);

    return SKIP_BODY;
  }

}