/**
* 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.
*/
package org.apache.ambari.view.hive2.persistence;
import org.apache.ambari.view.ViewContext;
import org.apache.ambari.view.hive2.utils.MisconfigurationFormattedException;
import org.apache.commons.configuration.ConfigurationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Persistent storage engine for storing java beans to
* properties file
* Path to file should be in 'dataworker.storagePath' parameter
*/
@Deprecated
public class LocalKeyValueStorage extends KeyValueStorage {
private final static Logger LOG =
LoggerFactory.getLogger(LocalKeyValueStorage.class);
private PersistentConfiguration config = null;
/**
* Constructor
* @param context View Context instance
*/
public LocalKeyValueStorage(ViewContext context) {
super(context);
}
/**
* Returns config instance
* @return config instance
*/
@Override
protected synchronized PersistentConfiguration getConfig() {
if (config == null) {
String fileName = context.getProperties().get("dataworker.storagePath");
if (fileName == null) {
String msg = "dataworker.storagePath is not configured!";
LOG.error(msg);
throw new MisconfigurationFormattedException("dataworker.storagePath");
}
try {
config = new PersistentConfiguration(fileName);
} catch (ConfigurationException e) {
e.printStackTrace();
}
}
return config;
}
}