/*
* Copyright 2012-2015, 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 com.flipkart.sp.dashboard.impl.spring.web;
import com.netflix.config.ConfigurationManager;
import com.netflix.config.DynamicConfiguration;
import com.netflix.config.FixedDelayPollingScheduler;
import com.netflix.config.PolledConfigurationSource;
import com.netflix.config.sources.URLConfigurationSource;
import com.netflix.turbine.init.TurbineInit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.trpr.platform.runtime.impl.config.FileLocator;
import java.io.File;
import java.net.URL;
/**
* <code>TurbineInitializer</code> implements {@link InitializingBean} and does the thrift of initializing turbine by loading
* the properties file, registering the properties to Archiaus(https://github.com/Netflix/archaius/) and
* calling the {@link TurbineInit#init()}
*
* @author devashishshankar
* @version 1.0, 08 April, 2013
*/
public class TurbineInitializer implements InitializingBean {
/** The prefix to be added to file absolute paths when loading the properties file */
private static final String FILE_PREFIX = "file:";
/** Logger for this class*/
private static final Logger LOGGER = LoggerFactory.getLogger(TurbineInitializer.class);
/**
* Interface method implementation. @see InitializingBean#afterPropertiesSet
*/
@Override
public void afterPropertiesSet() throws Exception {
LOGGER.info("Initializing turbine");
try {
//Find the config file
File turbineConfig = FileLocator.findUniqueFile("dashboard-config.properties");
LOGGER.debug("Found dashboard config file: "+turbineConfig.getAbsolutePath());
//Add it as a configuration source
PolledConfigurationSource source = new URLConfigurationSource(new URL(FILE_PREFIX+turbineConfig.getAbsolutePath()));
DynamicConfiguration configuration = new DynamicConfiguration(source, new FixedDelayPollingScheduler());
//Add the configurations to Archiaus
ConfigurationManager.install(configuration);
//Init Turbine
TurbineInit.init();
LOGGER.debug("Successfully inited Turbine");
} catch(Exception e) {
LOGGER.error("Error configuring and initing turbine",e);
}
}
}