Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF 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 javax.websocket; public class CloseReason { private final CloseCode closeCode; private final String reasonPhrase; public CloseReason(CloseReason.CloseCode closeCode, String reasonPhrase) { this.closeCode = closeCode; this.reasonPhrase = reasonPhrase; } public CloseCode getCloseCode() { return closeCode; } public String getReasonPhrase() { return reasonPhrase; } @Override public String toString() { return "CloseReason: code [" + closeCode.getCode() + "], reason [" + reasonPhrase + "]"; } public interface CloseCode { int getCode(); } public enum CloseCodes implements CloseReason.CloseCode { NORMAL_CLOSURE(1000), GOING_AWAY(1001), PROTOCOL_ERROR(1002), CANNOT_ACCEPT(1003), RESERVED( 1004), NO_STATUS_CODE(1005), CLOSED_ABNORMALLY(1006), NOT_CONSISTENT(1007), VIOLATED_POLICY( 1008), TOO_BIG(1009), NO_EXTENSION(1010), UNEXPECTED_CONDITION( 1011), SERVICE_RESTART(1012), TRY_AGAIN_LATER(1013), TLS_HANDSHAKE_FAILURE(1015); private int code; CloseCodes(int code) { this.code = code; } public static CloseCode getCloseCode(final int code) { if (code > 2999 && code < 5000) { return new CloseCode() { @Override public int getCode() { return code; } }; } switch (code) { case 1000: return CloseCodes.NORMAL_CLOSURE; case 1001: return CloseCodes.GOING_AWAY; case 1002: return CloseCodes.PROTOCOL_ERROR; case 1003: return CloseCodes.CANNOT_ACCEPT; case 1004: return CloseCodes.RESERVED; case 1005: return CloseCodes.NO_STATUS_CODE; case 1006: return CloseCodes.CLOSED_ABNORMALLY; case 1007: return CloseCodes.NOT_CONSISTENT; case 1008: return CloseCodes.VIOLATED_POLICY; case 1009: return CloseCodes.TOO_BIG; case 1010: return CloseCodes.NO_EXTENSION; case 1011: return CloseCodes.UNEXPECTED_CONDITION; case 1012: return CloseCodes.SERVICE_RESTART; case 1013: return CloseCodes.TRY_AGAIN_LATER; case 1015: return CloseCodes.TLS_HANDSHAKE_FAILURE; default: throw new IllegalArgumentException("Invalid close code: [" + code + "]"); } } @Override public int getCode() { return code; } } }