netty5/codec-smtp/src/main/java/io/netty/handler/codec/smtp/SmtpUtils.java
Norman Maurer 562d8d2200 Add smtp codec (client side only).
Motivation:

When writing a SMTP client a provided SMTP codec that follows RFC2821 is useful.

Modification:

Add client side codec and test.

Results:

People who want to write a SMTP client can reuse the codec.
2016-04-07 18:42:17 +02:00

33 lines
1.0 KiB
Java

/*
* Copyright 2016 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.smtp;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
final class SmtpUtils {
static List<CharSequence> toUnmodifiableList(CharSequence... sequences) {
if (sequences == null || sequences.length == 0) {
return Collections.emptyList();
}
return Collections.unmodifiableList(Arrays.asList(sequences));
}
private SmtpUtils() { }
}