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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.rpc;
import com.yahoo.vespa.config.PayloadChecksums;
import com.yahoo.text.AbstractUtf8Array;
import com.yahoo.text.Utf8Array;
import com.yahoo.vespa.config.LZ4PayloadCompressor;
import com.yahoo.vespa.config.protocol.CompressionInfo;
import com.yahoo.vespa.config.protocol.CompressionType;
import com.yahoo.vespa.config.protocol.ConfigResponse;
import com.yahoo.vespa.config.protocol.SlimeConfigResponse;
import com.yahoo.vespa.config.util.ConfigUtils;
/**
* Compressor that compresses config payloads to lz4.
*
* @author Ulf Lilleengen
*/
public class LZ4ConfigResponseFactory implements ConfigResponseFactory {
private static final LZ4PayloadCompressor compressor = new LZ4PayloadCompressor();
@Override
public ConfigResponse createResponse(AbstractUtf8Array rawPayload,
long generation,
boolean applyOnRestart) {
CompressionInfo info = CompressionInfo.create(CompressionType.LZ4, rawPayload.getByteLength());
Utf8Array compressed = new Utf8Array(compressor.compress(rawPayload.wrap()));
PayloadChecksums payloadChecksums = PayloadChecksums.from(ConfigUtils.getMd5(rawPayload), ConfigUtils.getXxhash64(rawPayload));
return new SlimeConfigResponse(compressed, generation, applyOnRestart, payloadChecksums, info);
}
}
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