org.cfg4j.sample.ConfigBeans.java Source code

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Here is the source code for org.cfg4j.sample.ConfigBeans.java

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/*
 * Copyright 2015 Norbert Potocki (norbert.potocki@nort.pl)
 *
 * 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.cfg4j.sample;

import com.codahale.metrics.MetricRegistry;
import org.cfg4j.provider.ConfigurationProvider;
import org.cfg4j.provider.ConfigurationProviderBuilder;
import org.cfg4j.source.ConfigurationSource;
import org.cfg4j.source.context.environment.Environment;
import org.cfg4j.source.context.environment.ImmutableEnvironment;
import org.cfg4j.source.context.filesprovider.ConfigFilesProvider;
import org.cfg4j.source.files.FilesConfigurationSource;
import org.cfg4j.source.reload.ReloadStrategy;
import org.cfg4j.source.reload.strategy.PeriodicalReloadStrategy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Collections;
import java.util.concurrent.TimeUnit;

@Configuration
public class ConfigBeans {

    @Value("${configFilesPath:./metrics/build/libs/}")
    private String filesPath; // Run with -DconfigFilesPath=<configFilesPath> parameter to override

    @Autowired
    private MetricRegistry metricRegistry;

    @Bean
    public ConfigurationProvider configurationProvider() {
        // Specify which files to load. Configuration from both files will be merged.
        ConfigFilesProvider configFilesProvider = () -> Collections.singletonList(Paths.get("application.yaml"));

        // Use local files as configuration store
        ConfigurationSource source = new FilesConfigurationSource(configFilesProvider);

        // Use relative paths
        Environment environment = new ImmutableEnvironment(filesPath);

        // Reload configuration every 500 milliseconds
        ReloadStrategy reloadStrategy = new PeriodicalReloadStrategy(500, TimeUnit.MILLISECONDS);

        // Create provider
        return new ConfigurationProviderBuilder().withConfigurationSource(source).withReloadStrategy(reloadStrategy)
                .withEnvironment(environment).withMetrics(metricRegistry, "firstProvider.").build();
    }
}