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ImportedCluster4.js
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ImportedCluster4.js
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
const Util = require('util');
const IgniteClient = require('apache-ignite-client');
const ObjectType = IgniteClient.ObjectType;
const IgniteClientConfiguration = IgniteClient.IgniteClientConfiguration;
const CacheConfiguration = IgniteClient.CacheConfiguration;
const SqlFieldsQuery = IgniteClient.SqlFieldsQuery;
const SqlQuery = IgniteClient.SqlQuery;
const ENDPOINT = '127.0.0.1:10800';
const COUNTRY_CACHE_NAME = 'CountryCache';
class ImportedCluster4 {
async start() {
const igniteClient = new IgniteClient(this.onStateChanged.bind(this));
try {
await igniteClient.connect(new IgniteClientConfiguration(ENDPOINT));
const countryCache = igniteClient.getCache(COUNTRY_CACHE_NAME);
await this.updateCountryName(countryCache);
}
catch (err) {
console.log('ERROR: ' + err.message);
}
finally {
igniteClient.disconnect();
}
}
async updateCountryName(countryCache) {
const query = new SqlFieldsQuery(
`UPDATE country
SET name = 'United States'
WHERE name = 'USA'`);
await countryCache.query(query);
console.log("Restore Country Name");
}
onStateChanged(state, reason) {
if (state === IgniteClient.STATE.CONNECTED) {
console.log('Client is started');
}
else if (state === IgniteClient.STATE.DISCONNECTED) {
console.log('Client is stopped');
if (reason) {
console.log(reason);
}
}
}
}
const importedCluster4 = new ImportedCluster4();
importedCluster4.start();