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ElasticsearchHealthIndicator.java
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ElasticsearchHealthIndicator.java
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/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.actuate.health;
import java.util.List;
import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.Requests;
/**
* {@link HealthIndicator} for an Elasticsearch cluster.
*
* @author Binwei Yang
* @author Andy Wilkinson
* @since 1.3.0
*/
public class ElasticsearchHealthIndicator extends AbstractHealthIndicator {
private static final String[] allIndices = { "_all" };
private final Client client;
private final ElasticsearchHealthIndicatorProperties properties;
public ElasticsearchHealthIndicator(Client client,
ElasticsearchHealthIndicatorProperties properties) {
this.client = client;
this.properties = properties;
}
@Override
protected void doHealthCheck(Health.Builder builder) throws Exception {
List<String> indices = this.properties.getIndices();
ClusterHealthResponse response = this.client.admin().cluster()
.health(Requests.clusterHealthRequest(indices.isEmpty() ? allIndices
: indices.toArray(new String[indices.size()])))
.actionGet(this.properties.getResponseTimeout());
switch (response.getStatus()) {
case GREEN:
case YELLOW:
builder.up();
break;
case RED:
default:
builder.down();
break;
}
builder.withDetail("clusterName", response.getClusterName());
builder.withDetail("numberOfNodes", response.getNumberOfNodes());
builder.withDetail("numberOfDataNodes", response.getNumberOfDataNodes());
builder.withDetail("activePrimaryShards", response.getActivePrimaryShards());
builder.withDetail("activeShards", response.getActiveShards());
builder.withDetail("relocatingShards", response.getRelocatingShards());
builder.withDetail("initializingShards", response.getInitializingShards());
builder.withDetail("unassignedShards", response.getUnassignedShards());
}
}