/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.aai.rest.search;

import org.onap.aai.logging.LogFormatTools;
import org.onap.aai.util.AAIConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.eelf.configuration.EELFManager;
import org.apache.tinkerpop.gremlin.driver.Cluster;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;

import javax.annotation.PostConstruct;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Date;
import java.util.Properties;
import java.util.Timer;
import java.util.TimerTask;

public class GremlinServerSingleton {

    private static Logger logger = LoggerFactory.getLogger(GremlinServerSingleton.class);

    private boolean timerSet;
    private Timer timer;


    CQConfig customQueryInfo;
    /**
     * Initializes the gremlin server singleton
     * Loads the configuration of the gremlin server and creates a cluster
     * Loads the gremlin query file into the properties object
     * Then creates a file watcher to watch the file every ten seconds
     * and if there is a change in the file, then reloads the file into
     * the properties object
     *
     */
    @Autowired
    public GremlinServerSingleton(CQConfig customQueryInfo){
         this.customQueryInfo = customQueryInfo;
    }

    /**
     * Gets the query using CustomQueryConfig
     * @param key
     * @return
     */
    public String getStoredQueryFromConfig(String key){
        GetCustomQueryConfig queryConfig = customQueryInfo.getCustomQueryConfig();

    	CustomQueryConfig customQueryConfig = queryConfig.getStoredQuery(key);
    	if ( customQueryConfig == null ) {
    		return null;
    	}
    	return customQueryConfig.getQuery();
    }
    
    public CustomQueryConfig getCustomQueryConfig(String key) {
        GetCustomQueryConfig queryConfig = customQueryInfo.getCustomQueryConfig();
    	return queryConfig.getStoredQuery(key);
    }


}