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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.proxy;
import com.yahoo.vespa.config.RawConfig;
import com.yahoo.vespa.config.protocol.JRTServerConfigRequest;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Level;
import java.util.logging.Logger;
import static com.yahoo.vespa.config.proxy.ConfigProxyRpcServer.TRACELEVEL;
/**
* An RPC server that handles config and file distribution requests.
*
* @author hmusum
*/
public class ResponseHandler {
private final Optional<AtomicLong> sentResponses;
public ResponseHandler() {
this(false);
}
// For testing only
ResponseHandler(boolean trackResponses) {
sentResponses = trackResponses ? Optional.of(new AtomicLong()) : Optional.empty();
}
private final static Logger log = Logger.getLogger(ResponseHandler.class.getName());
public void returnOkResponse(JRTServerConfigRequest request, RawConfig config) {
request.getRequestTrace().trace(TRACELEVEL, "Config proxy returnOkResponse()");
request.addOkResponse(config.getPayload(),
config.getGeneration(),
config.applyOnRestart(),
config.getPayloadChecksums());
log.log(Level.FINE, () -> "Return response: " + request.getShortDescription() + ",config checksums=" + config.getPayloadChecksums() +
",generation=" + config.getGeneration());
log.log(Level.FINEST, () -> "Config payload in response for " + request.getShortDescription() + ":" + config.getPayload());
// TODO Catch exception for now, since the request might have been returned in CheckDelayedResponse
// TODO Move logic so that all requests are returned in CheckDelayedResponse
try {
request.getRequest().returnRequest();
} catch (IllegalStateException e) {
log.log(Level.FINE, () -> "Something bad happened when sending response for '" + request.getShortDescription() + "':" + e.getMessage());
}
sentResponses.ifPresent(AtomicLong::getAndIncrement);
}
public void returnErrorResponse(JRTServerConfigRequest request, int errorCode, String message) {
request.getRequestTrace().trace(TRACELEVEL, "Config proxy returnErrorResponse()");
request.addErrorResponse(errorCode, message);
request.getRequest().returnRequest();
}
public long sentResponses() { return sentResponses.map(AtomicLong::get).orElse(0L); }
}
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