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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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 com.android.internal.net.ipsec.ike.message;
import java.nio.ByteBuffer;
/**
* IkeUnsupportedPayload represents anunsupported payload.
*
* <p>This special payload is only created in decoding process.
*
* @see <a href="https://tools.ietf.org/html/rfc7296#section-2.5">RFC 7296, Internet Key Exchange
* Protocol Version 2 (IKEv2)</a>
*/
final class IkeUnsupportedPayload extends IkePayload {
/**
* Construct an instance of IkeSaPayload in the context of IkePayloadFactory.
*
* @param payload indicates the current payload type
* @param critical indicates if it is a critical payload.
*/
IkeUnsupportedPayload(int payload, boolean critical) {
super(payload, critical);
}
/**
* Throw an Exception when trying to encode this payload.
*
* @throws UnsupportedOperationException for this payload.
*/
@Override
protected void encodeToByteBuffer(@PayloadType int nextPayload, ByteBuffer byteBuffer) {
throw new UnsupportedOperationException(
"It is not supported to encode a " + getTypeString());
}
/**
* Throw an Exception when trying to get payload length
*
* @throws UnsupportedOperationException for this payload.
*/
@Override
protected int getPayloadLength() {
throw new UnsupportedOperationException(
"It is not supported to get payload length of " + getTypeString());
}
/**
* Return the payload type as a String.
*
* @return the payload type as a String.
*/
@Override
public String getTypeString() {
return String.valueOf(payloadType);
}
}
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