org.jboss.netty.channel.UpstreamChannelStateEvent Maven / Gradle / Ivy
/*
* Copyright 2012 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 org.jboss.netty.channel;
import static org.jboss.netty.channel.Channels.*;
/**
* The default upstream {@link ChannelStateEvent} implementation.
*/
public class UpstreamChannelStateEvent implements ChannelStateEvent {
private final Channel channel;
private final ChannelState state;
private final Object value;
/**
* Creates a new instance.
*/
public UpstreamChannelStateEvent(
Channel channel, ChannelState state, Object value) {
if (channel == null) {
throw new NullPointerException("channel");
}
if (state == null) {
throw new NullPointerException("state");
}
this.channel = channel;
this.state = state;
this.value = value;
}
public Channel getChannel() {
return channel;
}
public ChannelFuture getFuture() {
return succeededFuture(getChannel());
}
public ChannelState getState() {
return state;
}
public Object getValue() {
return value;
}
@Override
public String toString() {
String channelString = getChannel().toString();
StringBuilder buf = new StringBuilder(channelString.length() + 64);
buf.append(channelString);
switch (getState()) {
case OPEN:
if (Boolean.TRUE.equals(getValue())) {
buf.append(" OPEN");
} else {
buf.append(" CLOSED");
}
break;
case BOUND:
if (getValue() != null) {
buf.append(" BOUND: ");
buf.append(getValue());
} else {
buf.append(" UNBOUND");
}
break;
case CONNECTED:
if (getValue() != null) {
buf.append(" CONNECTED: ");
buf.append(getValue());
} else {
buf.append(" DISCONNECTED");
}
break;
case INTEREST_OPS:
buf.append(" INTEREST_CHANGED");
break;
default:
buf.append(getState().name());
buf.append(": ");
buf.append(getValue());
}
return buf.toString();
}
}