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RSocketErrorException.java
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RSocketErrorException.java
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/*
* Copyright 2015-2020 the original author or authors.
*
* 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 io.rsocket;
import reactor.util.annotation.Nullable;
/**
* Exception that represents an RSocket protocol error.
*
* @see <a href="https://github.com/rsocket/rsocket/blob/master/Protocol.md#error-frame-0x0b">ERROR
* Frame (0x0B)</a>
*/
public class RSocketErrorException extends RuntimeException {
private static final long serialVersionUID = -1628781753426267554L;
private static final int MIN_ERROR_CODE = 0x00000001;
private static final int MAX_ERROR_CODE = 0xFFFFFFFE;
private final int errorCode;
/**
* Constructor with a protocol error code and a message.
*
* @param errorCode the RSocket protocol error code
* @param message error explanation
*/
public RSocketErrorException(int errorCode, String message) {
this(errorCode, message, null);
}
/**
* Alternative to {@link #RSocketErrorException(int, String)} with a root cause.
*
* @param errorCode the RSocket protocol error code
* @param message error explanation
* @param cause a root cause for the error
*/
public RSocketErrorException(int errorCode, String message, @Nullable Throwable cause) {
super(message, cause);
this.errorCode = errorCode;
if (errorCode > MAX_ERROR_CODE && errorCode < MIN_ERROR_CODE) {
throw new IllegalArgumentException(
"Allowed errorCode value should be in range [0x00000001-0xFFFFFFFE]", this);
}
}
/**
* Return the RSocket <a
* href="https://github.com/rsocket/rsocket/blob/master/Protocol.md#error-codes">error code</a>
* represented by this exception
*
* @return the RSocket protocol error code
*/
public int errorCode() {
return errorCode;
}
@Override
public String toString() {
return getClass().getSimpleName()
+ " (0x"
+ Integer.toHexString(errorCode)
+ "): "
+ getMessage();
}
}