com.yahoo.vespa.config.server.http.v2.HttpGetConfigHandler Maven / Gradle / Ivy
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.config.server.http.v2;
import com.yahoo.component.annotation.Inject;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.vespa.config.protocol.ConfigResponse;
import com.yahoo.vespa.config.server.RequestHandler;
import com.yahoo.vespa.config.server.http.HttpConfigRequest;
import com.yahoo.vespa.config.server.http.HttpConfigResponse;
import com.yahoo.vespa.config.server.http.HttpHandler;
import com.yahoo.vespa.config.server.http.v2.request.HttpConfigRequests;
import com.yahoo.vespa.config.server.tenant.TenantRepository;
import java.util.Optional;
import java.util.logging.Level;
/**
* HTTP handler for a getConfig operation
*
* @author Ulf Lilleengen
*/
public class HttpGetConfigHandler extends HttpHandler {
private final TenantRepository tenantRepository;
@Inject
public HttpGetConfigHandler(HttpHandler.Context ctx, TenantRepository tenantRepository) {
super(ctx);
this.tenantRepository = tenantRepository;
}
@Override
public HttpResponse handleGET(HttpRequest req) {
HttpConfigRequest request = HttpConfigRequest.createFromRequestV2(req);
RequestHandler requestHandler = HttpConfigRequests.getRequestHandler(tenantRepository, request);
HttpConfigRequest.validateRequestKey(request.getConfigKey(), requestHandler, request.getApplicationId());
return HttpConfigResponse.createFromConfig(resolveConfig(request, requestHandler));
}
private ConfigResponse resolveConfig(HttpConfigRequest request, RequestHandler requestHandler) {
log.log(Level.FINE, () -> "nocache=" + request.noCache());
ConfigResponse config = requestHandler.resolveConfig(request.getApplicationId(), request, Optional.empty());
if (config == null) HttpConfigRequest.throwModelNotReady();
if (request.requiredGeneration().isPresent() && request.requiredGeneration().get() != config.getGeneration())
HttpConfigRequest.throwPreconditionFailed(request.requiredGeneration().get());
return config;
}
}