/*
* 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 com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import io.searchbox.client.JestClient;
import io.searchbox.client.JestResult;
import io.searchbox.indices.Stats;
/**
* {@link HealthIndicator} for Elasticsearch using a {@link JestClient}.
*
* @author Stephane Nicoll
* @since 1.4.0
*/
public class ElasticsearchJestHealthIndicator extends AbstractHealthIndicator {
private final JestClient jestClient;
private final JsonParser jsonParser = new JsonParser();
public ElasticsearchJestHealthIndicator(JestClient jestClient) {
this.jestClient = jestClient;
}
@Override
protected void doHealthCheck(Health.Builder builder) throws Exception {
JestResult aliases = this.jestClient.execute(new Stats.Builder().build());
JsonElement root = this.jsonParser.parse(aliases.getJsonString());
JsonObject shards = root.getAsJsonObject().get("_shards").getAsJsonObject();
int failedShards = shards.get("failed").getAsInt();
if (failedShards != 0) {
builder.outOfService();
}
else {
builder.up();
}
}
}