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/*
 * -------------------------------- MIT License --------------------------------
 * 
 * Copyright (c) 2022-2023 SNF4J contributors
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * -----------------------------------------------------------------------------
 */
package org.snf4j.tls.extension;

import java.nio.ByteBuffer;

import org.snf4j.core.ByteBufferArray;
import org.snf4j.tls.alert.Alert;
import org.snf4j.tls.alert.DecodeErrorAlert;
import org.snf4j.tls.alert.UnsupportedExtensionAlert;
import org.snf4j.tls.handshake.HandshakeType;

public abstract class AbstractExtensionParser implements IExtensionParser {
	
	protected DecodeErrorAlert decodeError(String message) {
		return new DecodeErrorAlert("Extension '" 
				+ getType().name() 
				+ "' parsing failure: " 
				+ message);
	}

	protected UnsupportedExtensionAlert unsupportedExtension(HandshakeType handshakeType) {
		return new UnsupportedExtensionAlert("Extension '" 
				+ getType().name() 
				+ "' is prohibited in " 
				+ handshakeType.name());
	}
	
	@Override
	public IExtension parse(HandshakeType handshakeType, ByteBuffer[] srcs, int remaining) throws Alert  {
		return parse(handshakeType, ByteBufferArray.wrap(srcs), remaining);
	}
}