RecipientConverter.java

/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.xwiki.mail.internal;

import java.lang.reflect.Type;

import javax.inject.Singleton;
import javax.mail.Message;
import javax.mail.internet.MimeMessage;

import org.xwiki.component.annotation.Component;
import org.xwiki.properties.converter.AbstractConverter;
import org.xwiki.properties.converter.ConversionException;

/**
 * Converts a String to a {@link javax.mail.Message.RecipientType} instance. Useful when using the Mail Sender
 * scripting API to add a recipient.
 *
 * @version $Id: 14fb858411f34343e29c3f4eb5e19639a0ccbfea $
 * @since 6.1RC1
 */
@Component
@Singleton
public class RecipientConverter extends AbstractConverter<Message.RecipientType>
{
    @Override
    protected <G extends Message.RecipientType> G convertToType(Type targetType, Object value)
    {
        if (value == null) {
            return null;
        }

        Message.RecipientType recipientType;

        String valueAsString = value.toString();
        if (valueAsString.equalsIgnoreCase("to")) {
            recipientType = Message.RecipientType.TO;
        } else if (valueAsString.equalsIgnoreCase("cc")) {
            recipientType = Message.RecipientType.CC;
        } else if (valueAsString.equalsIgnoreCase("bcc")) {
            recipientType = Message.RecipientType.BCC;
        } else if (valueAsString.equalsIgnoreCase("newsgroups")) {
            recipientType = MimeMessage.RecipientType.NEWSGROUPS;
        } else {
            throw new ConversionException(String.format("Cannot convert [%s] to [%s]", value,
                Message.RecipientType.class.getName()));
        }

        return (G) recipientType;
    }
}