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// Copyright 2017 Yahoo Holdings. 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.config.codegen.InnerCNode;
import com.yahoo.text.Utf8Array;
import com.yahoo.vespa.config.ConfigPayload;
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 lulf
* @since 5.19
*/
public class LZ4ConfigResponseFactory implements ConfigResponseFactory {
private static LZ4PayloadCompressor compressor = new LZ4PayloadCompressor();
@Override
public ConfigResponse createResponse(ConfigPayload payload, InnerCNode defFile, long generation) {
Utf8Array rawPayload = payload.toUtf8Array(true);
String configMd5 = ConfigUtils.getMd5(rawPayload);
CompressionInfo info = CompressionInfo.create(CompressionType.LZ4, rawPayload.getByteLength());
Utf8Array compressed = new Utf8Array(compressor.compress(rawPayload.getBytes()));
return new SlimeConfigResponse(compressed, defFile, generation, configMd5, info);
}
}
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