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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.reindexing.http;
import ai.vespa.reindexing.Reindexing;
import ai.vespa.reindexing.ReindexingCurator;
import com.yahoo.cloud.config.ZookeepersConfig;
import com.yahoo.component.annotation.Inject;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.container.jdisc.RequestView;
import com.yahoo.container.jdisc.ThreadedHttpRequestHandler;
import com.yahoo.container.jdisc.utils.CapabilityRequiringRequestHandler;
import com.yahoo.document.DocumentTypeManager;
import com.yahoo.jdisc.Metric;
import com.yahoo.restapi.ErrorResponse;
import com.yahoo.restapi.Path;
import com.yahoo.restapi.SlimeJsonResponse;
import com.yahoo.security.tls.Capability;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Slime;
import com.yahoo.vespa.config.content.reindexing.ReindexingConfig;
import com.yahoo.vespa.curator.Curator;
import com.yahoo.vespa.zookeeper.VespaZooKeeperServer;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.Executor;
import static com.yahoo.jdisc.http.HttpRequest.Method.GET;
/**
* Allows inspecting reindexing status over HTTP.
*
* @author jonmv
*/
public class ReindexingV1ApiHandler extends ThreadedHttpRequestHandler implements CapabilityRequiringRequestHandler {
private final ReindexingCurator database;
private final List<String> clusterNames;
@Inject
public ReindexingV1ApiHandler(Executor executor, Metric metric,
@SuppressWarnings("unused") VespaZooKeeperServer ensureZkHasStarted,
ZookeepersConfig zookeepersConfig,
ReindexingConfig reindexingConfig,
DocumentTypeManager documentTypeManager) {
this(executor,
metric,
reindexingConfig.clusters().keySet(),
new ReindexingCurator(Curator.create(zookeepersConfig.zookeeperserverlist()), documentTypeManager));
}
ReindexingV1ApiHandler(Executor executor, Metric metric, Collection<String> clusterNames, ReindexingCurator database) {
super(executor, metric);
this.database = database;
this.clusterNames = List.copyOf(clusterNames);
}
@Override public Capability requiredCapability(RequestView __) { return Capability.CLUSTER_CONTROLLER__REINDEXING; }
@Override
public HttpResponse handle(HttpRequest request) {
Path path = new Path(request.getUri());
if (request.getMethod() != GET)
return ErrorResponse.methodNotAllowed("Only GET is supported under /reindexing/v1/");
if (path.matches("/reindexing/v1")) return getRoot();
if (path.matches("/reindexing/v1/status")) return getStatus();
return ErrorResponse.notFoundError("Nothing at " + request.getUri().getRawPath());
}
@Override
public void destroy() {
database.close();
}
HttpResponse getRoot() {
Slime slime = new Slime();
slime.setObject().setArray("resources").addObject().setString("url", "/reindexing/v1/status");
return new SlimeJsonResponse(slime);
}
HttpResponse getStatus() {
Slime slime = new Slime();
Cursor clustersObject = slime.setObject().setObject("clusters");
for (String clusterName : clusterNames) {
Cursor documentTypesObject = clustersObject.setObject(clusterName).setObject("documentTypes");
database.readReindexing(clusterName).status().forEach((type, status) -> {
Cursor statusObject = documentTypesObject.setObject(type.getName());
statusObject.setLong("startedMillis", status.startedAt().toEpochMilli());
status.endedAt().ifPresent(endedAt -> statusObject.setLong("endedMillis", endedAt.toEpochMilli()));
status.progress().ifPresent(progress -> statusObject.setDouble("progress", progress.percentFinished() * 1e-2));
statusObject.setString("state", toString(status.state()));
status.message().ifPresent(message -> statusObject.setString("message", message));
});
}
return new SlimeJsonResponse(slime);
}
private static String toString(Reindexing.State state) {
switch (state) {
case READY: return "pending";
case RUNNING: return "running";
case SUCCESSFUL: return "successful";
case FAILED: return "failed";
default: throw new IllegalArgumentException("Unexpected state '" + state + "'");
}
}
}
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