org.elasticsearch.rest.action.cat.RestNodeAttrsAction Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.rest.action.cat;
import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoRequest;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.Table;
import org.elasticsearch.monitor.process.ProcessInfo;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestResponse;
import org.elasticsearch.rest.action.RestActionListener;
import org.elasticsearch.rest.action.RestResponseListener;
import java.util.List;
import java.util.Map;
import static java.util.Collections.singletonList;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestNodeAttrsAction extends AbstractCatAction {
@Override
public List routes() {
return singletonList(new Route(GET, "/_cat/nodeattrs"));
}
@Override
public String getName() {
return "cat_node_attrs_action";
}
@Override
protected void documentation(StringBuilder sb) {
sb.append("/_cat/nodeattrs\n");
}
@Override
public RestChannelConsumer doCatRequest(final RestRequest request, final NodeClient client) {
final ClusterStateRequest clusterStateRequest = new ClusterStateRequest();
clusterStateRequest.clear().nodes(true);
clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
clusterStateRequest.masterNodeTimeout(request.paramAsTime("master_timeout", clusterStateRequest.masterNodeTimeout()));
return channel -> client.admin().cluster().state(clusterStateRequest, new RestActionListener(channel) {
@Override
public void processResponse(final ClusterStateResponse clusterStateResponse) {
NodesInfoRequest nodesInfoRequest = new NodesInfoRequest();
nodesInfoRequest.clear().addMetric(NodesInfoRequest.Metric.PROCESS.metricName());
client.admin().cluster().nodesInfo(nodesInfoRequest, new RestResponseListener(channel) {
@Override
public RestResponse buildResponse(NodesInfoResponse nodesInfoResponse) throws Exception {
return RestTable.buildResponse(buildTable(request, clusterStateResponse, nodesInfoResponse), channel);
}
});
}
});
}
@Override
protected Table getTableWithHeader(final RestRequest request) {
Table table = new Table();
table.startHeaders();
table.addCell("node", "default:true;alias:name;desc:node name");
table.addCell("id", "default:false;alias:id,nodeId;desc:unique node id");
table.addCell("pid", "default:false;alias:p;desc:process id");
table.addCell("host", "alias:h;desc:host name");
table.addCell("ip", "alias:i;desc:ip address");
table.addCell("port", "default:false;alias:po;desc:bound transport port");
table.addCell("attr", "default:true;alias:attr.name;desc:attribute description");
table.addCell("value", "default:true;alias:attr.value;desc:attribute value");
table.endHeaders();
return table;
}
private Table buildTable(RestRequest req, ClusterStateResponse state, NodesInfoResponse nodesInfo) {
boolean fullId = req.paramAsBoolean("full_id", false);
DiscoveryNodes nodes = state.getState().nodes();
Table table = getTableWithHeader(req);
for (DiscoveryNode node : nodes) {
NodeInfo info = nodesInfo.getNodesMap().get(node.getId());
for (Map.Entry attrEntry : node.getAttributes().entrySet()) {
table.startRow();
table.addCell(node.getName());
table.addCell(fullId ? node.getId() : Strings.substring(node.getId(), 0, 4));
table.addCell(info == null ? null : info.getInfo(ProcessInfo.class).getId());
table.addCell(node.getHostName());
table.addCell(node.getHostAddress());
table.addCell(node.getAddress().address().getPort());
table.addCell(attrEntry.getKey());
table.addCell(attrEntry.getValue());
table.endRow();
}
}
return table;
}
}