/**
 * 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.notification.messages;

import java.io.StringWriter;

import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.glite.security.voms.admin.error.VOMSException;

public abstract class VelocityEmailNotification extends EmailNotification {

  private String templateFile;

  protected String subjectPrefix = "[VOMS Admin]";

  public String getTemplateFile() {

    return templateFile;
  }

  public void setTemplateFile(String templateFile) {

    this.templateFile = templateFile;
  }

  protected void buildMessageFromTemplate(VelocityContext context) {

    StringWriter w = new StringWriter();

    try {

      Velocity.mergeTemplate(templateFile, "UTF-8", context, w);

    } catch (Exception e) {
      throw new VOMSException(e);
    }

    setMessage(w.toString());
  }

}