io.netty.handler.codec.socksx.SocksVersion Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright 2013 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:
*
* https://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.socksx;
/**
* The version of SOCKS protocol.
*/
public enum SocksVersion {
/**
* SOCKS protocol version 4a (or 4)
*/
SOCKS4a((byte) 0x04),
/**
* SOCKS protocol version 5
*/
SOCKS5((byte) 0x05),
/**
* Unknown protocol version
*/
UNKNOWN((byte) 0xff);
/**
* Returns the {@link SocksVersion} that corresponds to the specified version field value,
* as defined in the protocol specification.
*
* @return {@link #UNKNOWN} if the specified value does not represent a known SOCKS protocol version
*/
public static SocksVersion valueOf(byte b) {
if (b == SOCKS4a.byteValue()) {
return SOCKS4a;
}
if (b == SOCKS5.byteValue()) {
return SOCKS5;
}
return UNKNOWN;
}
private final byte b;
SocksVersion(byte b) {
this.b = b;
}
/**
* Returns the value of the version field, as defined in the protocol specification.
*/
public byte byteValue() {
return b;
}
}