org.graylog2.rest.resources.system.indexer.IndexerClusterResource 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.system.indexer;
import com.codahale.metrics.annotation.Timed;
import com.fasterxml.jackson.databind.JsonNode;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.graylog2.indexer.cluster.Cluster;
import org.graylog2.rest.models.system.indexer.responses.ClusterHealth;
import org.graylog2.rest.models.system.indexer.responses.ClusterName;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.shared.security.RestPermissions;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import java.util.Locale;
@RequiresAuthentication
@Api(value = "Indexer/Cluster", description = "Indexer cluster information")
@Path("/system/indexer/cluster")
public class IndexerClusterResource extends RestResource {
@Inject
private Cluster cluster;
@GET
@Timed
@Path("/name")
@RequiresPermissions(RestPermissions.INDEXERCLUSTER_READ)
@ApiOperation(value = "Get the cluster name")
@Produces(MediaType.APPLICATION_JSON)
public ClusterName clusterName() {
final JsonNode health = cluster.health()
.orElseThrow(() -> new InternalServerErrorException("Couldn't read Elasticsearch cluster health"));
final String clusterName = health.path("cluster_name").asText("");
return ClusterName.create(clusterName);
}
@GET
@Timed
@Path("/health")
@ApiOperation(value = "Get cluster and shard health overview")
@RequiresPermissions(RestPermissions.INDEXERCLUSTER_READ)
@Produces(MediaType.APPLICATION_JSON)
public ClusterHealth clusterHealth() {
final JsonNode health = cluster.health()
.orElseThrow(() -> new InternalServerErrorException("Couldn't read Elasticsearch cluster health"));
final ClusterHealth.ShardStatus shards = ClusterHealth.ShardStatus.create(
health.path("active_shards").asInt(),
health.path("initializing_shards").asInt(),
health.path("relocating_shards").asInt(),
health.path("unassigned_shards").asInt());
return ClusterHealth.create(health.path("status").asText().toLowerCase(Locale.ENGLISH), shards);
}
}