/*
* Copyright (c) 2015-2016, Christoph Engelbert (aka noctarius) and
* contributors. All rights reserved.
*
* 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 com.noctarius.tengi.client.impl;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.util.Attribute;
import io.netty.util.AttributeKey;
public class ClientUtil {
public static final AttributeKey<ConnectCallback> CONNECT_FUTURE = AttributeKey.newInstance("CONNECT_FUTURE");
public static final AttributeKey<ServerConnection> CONNECTION = AttributeKey.newInstance("CONNECTION");
public static <T> T connectionAttribute(ChannelHandlerContext ctx, AttributeKey<T> key) {
return connectionAttribute(ctx, key, false);
}
public static <T> T connectionAttribute(ChannelHandlerContext ctx, AttributeKey<T> key, boolean remove) {
Attribute<T> attribute = ctx.attr(key);
if (attribute != null) {
return remove ? attribute.getAndRemove() : attribute.get();
}
return null;
}
public static <T> void connectionAttribute(ChannelHandlerContext ctx, AttributeKey<T> key, T value) {
Attribute<T> attribute = ctx.attr(key);
attribute.set(value);
}
public static <T> T connectionAttribute(Channel channel, AttributeKey<T> key) {
return connectionAttribute(channel, key, false);
}
public static <T> T connectionAttribute(Channel channel, AttributeKey<T> key, boolean remove) {
Attribute<T> attribute = channel.attr(key);
if (attribute != null) {
return remove ? attribute.getAndRemove() : attribute.get();
}
return null;
}
public static <T> void connectionAttribute(Channel channel, AttributeKey<T> key, T value) {
Attribute<T> attribute = channel.attr(key);
attribute.set(value);
}
private ClientUtil() {
}
}