javax.websocket.DecodeException Maven / Gradle / Ivy
/*
* Copyright (c) 2018 Oracle and/or its affiliates and others.
* All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.websocket;
import java.nio.ByteBuffer;
/**
* A general exception that occurs when trying to decode a custom object from a text or binary message.
*
* @author dannycoward
*/
public class DecodeException extends Exception {
private final ByteBuffer bb;
private final String encodedString;
private static final long serialVersionUID = 006;
/**
* Constructor with the binary data that could not be decoded, and the reason why it failed to be, and the cause.
* The buffer may represent the whole message, or the part of the message most relevant to the decoding error,
* depending whether the application is using one of the streaming methods or not.
*
* @param bb the byte buffer containing the (part of) the message that could not be decoded.
* @param message the reason for the failure.
* @param cause the cause of the error.
*/
public DecodeException(ByteBuffer bb, String message, Throwable cause) {
super(message, cause);
this.encodedString = null;
this.bb = bb;
}
/**
* Constructor with the text data that could not be decoded, and the reason why it failed to be, and the cause. The
* encoded string may represent the whole message, or the part of the message most relevant to the decoding error,
* depending whether the application is using one of the streaming methods or not.
*
* @param encodedString the string representing the (part of) the message that could not be decoded.
* @param message the reason for the failure.
* @param cause the cause of the error.
*/
public DecodeException(String encodedString, String message, Throwable cause) {
super(message, cause);
this.encodedString = encodedString;
this.bb = null;
}
/**
* Constructs a DecodedException with the given ByteBuffer that cannot be decoded, and reason why. The buffer may
* represent the whole message, or the part of the message most relevant to the decoding error, depending whether
* the application is using one of the streaming methods or not.
*
* @param bb the byte buffer containing the (part of) the message that could not be decoded.
* @param message the reason for the failure.
*/
public DecodeException(ByteBuffer bb, String message) {
super(message);
this.encodedString = null;
this.bb = bb;
}
/**
* Constructs a DecodedException with the given encoded string that cannot be decoded, and reason why. The encoded
* string may represent the whole message, or the part of the message most relevant to the decoding error, depending
* whether the application is using one of the streaming methods or not.
*
* @param encodedString the string representing the (part of) the message that could not be decoded.
* @param message the reason for the failure.
*/
public DecodeException(String encodedString, String message) {
super(message);
this.encodedString = encodedString;
this.bb = null;
}
/**
* Return the ByteBuffer containing either the whole message, or the partial message, that could not be decoded, or
* {@code null} if this exception arose from a failure to decode a text message.
*
* @return the binary data not decoded or {@code null} for text message failures.
*/
public ByteBuffer getBytes() {
return this.bb;
}
/**
* Return the encoded string that is either the whole message, or the partial message that could not be decoded, or
* {@code null} if this exception arose from a failure to decode a binary message..
*
* @return the text not decoded or {@code null} for binary message failures.
*/
public String getText() {
return this.encodedString;
}
}