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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018 NOKIA Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.collectors.veshv.impl
import io.netty.buffer.ByteBuf
import org.onap.dcae.collectors.veshv.domain.WireFrame
import org.onap.dcae.collectors.veshv.utils.logging.Logger
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since May 2018
*/
internal class WireDecoder {
fun decode(byteBuf: ByteBuf): ByteBuf? =
try {
WireFrame.decode(byteBuf)
.takeIf { it.isValid() }
.let { it?.payload }
} catch (ex: IndexOutOfBoundsException) {
logger.debug { "Wire protocol frame could not be decoded - input is too small" }
null
}
companion object {
private val logger = Logger(WireDecoder::class)
}
}
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