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Elasticsearch subproject :server
/*
* 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.admin.cluster;
import org.elasticsearch.action.admin.cluster.node.hotthreads.NodeHotThreads;
import org.elasticsearch.action.admin.cluster.node.hotthreads.NodesHotThreadsRequest;
import org.elasticsearch.action.admin.cluster.node.hotthreads.NodesHotThreadsResponse;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.core.RestApiVersion;
import org.elasticsearch.core.TimeValue;
import org.elasticsearch.monitor.jvm.HotThreads;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.BytesRestResponse;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestResponse;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.rest.action.RestResponseListener;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import static java.util.Arrays.asList;
import static java.util.Collections.unmodifiableList;
import static org.elasticsearch.rest.RestRequest.Method.GET;
public class RestNodesHotThreadsAction extends BaseRestHandler {
private static final String formatDeprecatedMessageWithoutNodeID = "[%s] is a deprecated endpoint. "
+ "Please use [/_nodes/hot_threads] instead.";
private static final String formatDeprecatedMessageWithNodeID = "[%s] is a deprecated endpoint. "
+ "Please use [/_nodes/{nodeId}/hot_threads] instead.";
private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_HOT_THREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithoutNodeID,
"/_cluster/nodes/hot_threads"
);
private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOT_THREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithNodeID,
"/_cluster/nodes/{nodeId}/hot_threads"
);
private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_HOTTHREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithoutNodeID,
"/_cluster/nodes/hotthreads"
);
private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOTTHREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithNodeID,
"/_cluster/nodes/{nodeId}/hotthreads"
);
private static final String DEPRECATED_MESSAGE_NODES_HOTTHREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithoutNodeID,
"/_nodes/hotthreads"
);
private static final String DEPRECATED_MESSAGE_NODES_NODEID_HOTTHREADS = String.format(
Locale.ROOT,
formatDeprecatedMessageWithNodeID,
"/_nodes/{nodeId}/hotthreads"
);
@Override
public List routes() {
return unmodifiableList(
asList(
new Route(GET, "/_nodes/hot_threads"),
new Route(GET, "/_nodes/{nodeId}/hot_threads"),
Route.builder(GET, "/_cluster/nodes/hot_threads")
.deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_HOT_THREADS, RestApiVersion.V_7)
.build(),
Route.builder(GET, "/_cluster/nodes/{nodeId}/hot_threads")
.deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOT_THREADS, RestApiVersion.V_7)
.build(),
Route.builder(GET, "/_cluster/nodes/hotthreads")
.deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_HOTTHREADS, RestApiVersion.V_7)
.build(),
Route.builder(GET, "/_cluster/nodes/{nodeId}/hotthreads")
.deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOTTHREADS, RestApiVersion.V_7)
.build(),
Route.builder(GET, "/_nodes/hotthreads").deprecated(DEPRECATED_MESSAGE_NODES_HOTTHREADS, RestApiVersion.V_7).build(),
Route.builder(GET, "/_nodes/{nodeId}/hotthreads")
.deprecated(DEPRECATED_MESSAGE_NODES_NODEID_HOTTHREADS, RestApiVersion.V_7)
.build()
)
);
}
@Override
public String getName() {
return "nodes_hot_threads_action";
}
@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
String[] nodesIds = Strings.splitStringByCommaToArray(request.param("nodeId"));
NodesHotThreadsRequest nodesHotThreadsRequest = new NodesHotThreadsRequest(nodesIds);
nodesHotThreadsRequest.threads(request.paramAsInt("threads", nodesHotThreadsRequest.threads()));
nodesHotThreadsRequest.ignoreIdleThreads(request.paramAsBoolean("ignore_idle_threads", nodesHotThreadsRequest.ignoreIdleThreads()));
nodesHotThreadsRequest.type(HotThreads.ReportType.of(request.param("type", nodesHotThreadsRequest.type().getTypeValue())));
nodesHotThreadsRequest.sortOrder(
HotThreads.SortOrder.of(request.param("sort", nodesHotThreadsRequest.sortOrder().getOrderValue()))
);
nodesHotThreadsRequest.interval(TimeValue.parseTimeValue(request.param("interval"), nodesHotThreadsRequest.interval(), "interval"));
nodesHotThreadsRequest.snapshots(request.paramAsInt("snapshots", nodesHotThreadsRequest.snapshots()));
nodesHotThreadsRequest.timeout(request.param("timeout"));
return channel -> client.admin()
.cluster()
.nodesHotThreads(nodesHotThreadsRequest, new RestResponseListener(channel) {
@Override
public RestResponse buildResponse(NodesHotThreadsResponse response) throws Exception {
StringBuilder sb = new StringBuilder();
for (NodeHotThreads node : response.getNodes()) {
sb.append("::: ").append(node.getNode().toString()).append("\n");
Strings.spaceify(3, node.getHotThreads(), sb);
sb.append('\n');
}
return new BytesRestResponse(RestStatus.OK, sb.toString());
}
});
}
@Override
public boolean canTripCircuitBreaker() {
return false;
}
}