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The Netty project is an effort to provide an asynchronous event-driven
network application framework and tools for rapid development of
maintainable high performance and high scalability protocol servers and
clients. In other words, Netty is a NIO client server framework which
enables quick and easy development of network applications such as protocol
servers and clients. It greatly simplifies and streamlines network
programming such as TCP and UDP socket server.
/*
* 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:
*
* 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.handler.codec.spdy;
/**
* The SPDY stream status code and its description.
* @apiviz.exclude
*/
public class SpdyStreamStatus implements Comparable {
/**
* 1 Protocol Error
*/
public static final SpdyStreamStatus PROTOCOL_ERROR =
new SpdyStreamStatus(1, "PROTOCOL_ERROR");
/**
* 2 Invalid Stream
*/
public static final SpdyStreamStatus INVALID_STREAM =
new SpdyStreamStatus(2, "INVALID_STREAM");
/**
* 3 Refused Stream
*/
public static final SpdyStreamStatus REFUSED_STREAM =
new SpdyStreamStatus(3, "REFUSED_STREAM");
/**
* 4 Unsupported Version
*/
public static final SpdyStreamStatus UNSUPPORTED_VERSION =
new SpdyStreamStatus(4, "UNSUPPORTED_VERSION");
/**
* 5 Cancel
*/
public static final SpdyStreamStatus CANCEL =
new SpdyStreamStatus(5, "CANCEL");
/**
* 6 Internal Error
*/
public static final SpdyStreamStatus INTERNAL_ERROR =
new SpdyStreamStatus(6, "INTERNAL_ERROR");
/**
* 7 Flow Control Error
*/
public static final SpdyStreamStatus FLOW_CONTROL_ERROR =
new SpdyStreamStatus(7, "FLOW_CONTROL_ERROR");
/**
* 8 Stream In Use
*/
public static final SpdyStreamStatus STREAM_IN_USE =
new SpdyStreamStatus(8, "STREAM_IN_USE");
/**
* 9 Stream Already Closed
*/
public static final SpdyStreamStatus STREAM_ALREADY_CLOSED =
new SpdyStreamStatus(9, "STREAM_ALREADY_CLOSED");
/**
* 10 Invalid Credentials
*/
public static final SpdyStreamStatus INVALID_CREDENTIALS =
new SpdyStreamStatus(10, "INVALID_CREDENTIALS");
/**
* 11 Frame Too Large
*/
public static final SpdyStreamStatus FRAME_TOO_LARGE =
new SpdyStreamStatus(11, "FRAME_TOO_LARGE");
/**
* Returns the {@link SpdyStreamStatus} represented by the specified code.
* If the specified code is a defined SPDY status code, a cached instance
* will be returned. Otherwise, a new instance will be returned.
*/
public static SpdyStreamStatus valueOf(int code) {
if (code == 0) {
throw new IllegalArgumentException(
"0 is not a valid status code for a RST_STREAM");
}
switch (code) {
case 1:
return PROTOCOL_ERROR;
case 2:
return INVALID_STREAM;
case 3:
return REFUSED_STREAM;
case 4:
return UNSUPPORTED_VERSION;
case 5:
return CANCEL;
case 6:
return INTERNAL_ERROR;
case 7:
return FLOW_CONTROL_ERROR;
case 8:
return STREAM_IN_USE;
case 9:
return STREAM_ALREADY_CLOSED;
case 10:
return INVALID_CREDENTIALS;
case 11:
return FRAME_TOO_LARGE;
}
return new SpdyStreamStatus(code, "UNKNOWN (" + code + ')');
}
private final int code;
private final String statusPhrase;
/**
* Creates a new instance with the specified {@code code} and its
* {@code statusPhrase}.
*/
public SpdyStreamStatus(int code, String statusPhrase) {
if (code == 0) {
throw new IllegalArgumentException(
"0 is not a valid status code for a RST_STREAM");
}
if (statusPhrase == null) {
throw new NullPointerException("statusPhrase");
}
this.code = code;
this.statusPhrase = statusPhrase;
}
/**
* Returns the code of this status.
*/
public int getCode() {
return code;
}
/**
* Returns the status phrase of this status.
*/
public String getStatusPhrase() {
return statusPhrase;
}
@Override
public int hashCode() {
return getCode();
}
@Override
public boolean equals(Object o) {
if (!(o instanceof SpdyStreamStatus)) {
return false;
}
return getCode() == ((SpdyStreamStatus) o).getCode();
}
@Override
public String toString() {
return getStatusPhrase();
}
public int compareTo(SpdyStreamStatus o) {
return getCode() - o.getCode();
}
}