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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.cloud.config.ConfigserverConfig;
import com.yahoo.vespa.config.ConfigPayload;
import com.yahoo.vespa.config.protocol.ConfigResponse;
/**
* Represents a component that creates config responses from a payload. Different implementations
* can do transformations of the payload such as compression.
*
* @author Ulf Lilleengen
*/
public interface ConfigResponseFactory {
static ConfigResponseFactory create(ConfigserverConfig configserverConfig) {
switch (configserverConfig.payloadCompressionType()) {
case LZ4:
return new LZ4ConfigResponseFactory();
case UNCOMPRESSED:
return new UncompressedConfigResponseFactory();
default:
throw new IllegalArgumentException("Unknown payload compression type " + configserverConfig.payloadCompressionType());
}
}
/**
* Creates a {@link ConfigResponse} for a given payload and generation.
*
* @param payload the {@link ConfigPayload} to put in the response
* @param generation the payload generation
* @param internalRedeploy whether this config generation was produced by an internal redeployment
* not a change to the application package
* @param applyOnRestart true if this config change should only be applied on restart,
* false if it should be applied immediately
* @return a {@link ConfigResponse} that can be sent to the client
*/
ConfigResponse createResponse(ConfigPayload payload, long generation, boolean internalRedeploy, boolean applyOnRestart);
}
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