org.graylog2.rest.resources.cluster.ClusterSystemShutdownResource Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog2.rest.resources.cluster;
import com.codahale.metrics.annotation.Timed;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.graylog2.audit.AuditEventTypes;
import org.graylog2.audit.jersey.AuditEvent;
import org.graylog2.cluster.Node;
import org.graylog2.cluster.NodeNotFoundException;
import org.graylog2.cluster.NodeService;
import org.graylog2.rest.RemoteInterfaceProvider;
import org.graylog2.rest.resources.system.RemoteSystemShutdownResource;
import org.graylog2.shared.rest.resources.ProxiedResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import retrofit2.Response;
import javax.inject.Inject;
import javax.inject.Named;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import static javax.ws.rs.core.Response.Status.ACCEPTED;
import static javax.ws.rs.core.Response.Status.BAD_GATEWAY;
@RequiresAuthentication
@Api(value = "Cluster/Shutdown", description = "Shutdown gracefully nodes in cluster")
@Path("/cluster/{nodeId}/shutdown")
@Produces(MediaType.APPLICATION_JSON)
public class ClusterSystemShutdownResource extends ProxiedResource {
private static final Logger LOG = LoggerFactory.getLogger(ClusterSystemShutdownResource.class);
@Inject
public ClusterSystemShutdownResource(NodeService nodeService,
RemoteInterfaceProvider remoteInterfaceProvider,
@Context HttpHeaders httpHeaders,
@Named("proxiedRequestsExecutorService") ExecutorService executorService) throws NodeNotFoundException {
super(httpHeaders, nodeService, remoteInterfaceProvider, executorService);
}
@POST
@Timed
@ApiOperation(value = "Shutdown node gracefully.",
notes = "Attempts to process all buffered and cached messages before exiting, " +
"shuts down inputs first to make sure that no new messages are accepted.")
@AuditEvent(type = AuditEventTypes.NODE_SHUTDOWN_INITIATE)
public void shutdown(@ApiParam(name = "nodeId", value = "The id of the node to shutdown.", required = true)
@PathParam("nodeId") String nodeId) throws IOException, NodeNotFoundException {
final Node targetNode = nodeService.byNodeId(nodeId);
RemoteSystemShutdownResource remoteSystemShutdownResource = remoteInterfaceProvider.get(targetNode,
this.authenticationToken,
RemoteSystemShutdownResource.class);
final Response response = remoteSystemShutdownResource.shutdown().execute();
if (response.code() != ACCEPTED.getStatusCode()) {
LOG.warn("Unable send shut down signal to node {}: {}", nodeId, response.message());
throw new WebApplicationException(response.message(), BAD_GATEWAY);
}
}
}