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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.restapi.systemflags;
import com.yahoo.component.annotation.Inject;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.container.jdisc.ThreadedHttpRequestHandler;
import com.yahoo.restapi.ErrorResponse;
import com.yahoo.restapi.JacksonJsonResponse;
import com.yahoo.restapi.Path;
import com.yahoo.vespa.hosted.controller.api.integration.ControllerIdentityProvider;
import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneRegistry;
import com.yahoo.vespa.hosted.controller.api.systemflags.v1.FlagValidationException;
import com.yahoo.vespa.hosted.controller.api.systemflags.v1.FlagsTarget;
import com.yahoo.vespa.hosted.controller.api.systemflags.v1.SystemFlagsDataArchive;
import com.yahoo.vespa.hosted.controller.restapi.ErrorResponses;
import java.io.InputStream;
import java.util.List;
import java.util.concurrent.Executor;
/**
* Handler implementation for '/system-flags/v1', an API for controlling system-wide feature flags
*
* @author bjorncs
*/
@SuppressWarnings("unused") // Request handler listed in controller's services.xml
public class SystemFlagsHandler extends ThreadedHttpRequestHandler {
private static final String API_PREFIX = "/system-flags/v1";
private final SystemFlagsDeployer deployer;
private final ZoneRegistry zoneRegistry;
@Inject
public SystemFlagsHandler(ZoneRegistry zoneRegistry,
ControllerIdentityProvider identityProvider,
Executor executor) {
super(executor);
this.zoneRegistry = zoneRegistry;
this.deployer = new SystemFlagsDeployer(identityProvider, zoneRegistry.system(), FlagsTarget.getAllTargetsInSystem(zoneRegistry, true));
}
@Override
public HttpResponse handle(HttpRequest request) {
return switch (request.getMethod()) {
case PUT -> put(request);
default -> ErrorResponse.methodNotAllowed("Method '" + request.getMethod() + "' is unsupported");
};
}
private HttpResponse put(HttpRequest request) {
Path path = new Path(request.getUri());
if (path.matches(API_PREFIX + "/deploy")) return deploy(request, /*dryRun*/false);
if (path.matches(API_PREFIX + "/dryrun")) return deploy(request, /*dryRun*/true);
return ErrorResponse.notFoundError("Nothing at " + path);
}
private HttpResponse deploy(HttpRequest request, boolean dryRun) {
try {
String contentType = request.getHeader("Content-Type");
if (!contentType.equalsIgnoreCase("application/zip")) {
return ErrorResponse.badRequest("Invalid content type: " + contentType);
}
SystemFlagsDeployResult result = deploy(request.getData(), dryRun);
return new JacksonJsonResponse<>(200, result.toWire());
} catch (Exception e) {
return ErrorResponses.logThrowing(request, log, e);
}
}
private SystemFlagsDeployResult deploy(InputStream zipStream, boolean dryRun) {
SystemFlagsDataArchive archive;
try {
archive = SystemFlagsDataArchive.fromZip(zipStream, zoneRegistry);
} catch (FlagValidationException e) {
return new SystemFlagsDeployResult(List.of(SystemFlagsDeployResult.OperationError.archiveValidationFailed(e.getMessage())));
}
return deployer.deployFlags(archive, dryRun);
}
}
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