io.pivotal.gemfire.main.SpringGemFireServerApplication.java Source code

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Here is the source code for io.pivotal.gemfire.main.SpringGemFireServerApplication.java

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/*
 * Copyright 2014-present 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 io.pivotal.gemfire.main;

import java.util.Properties;

import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheLoader;
import com.gemstone.gemfire.cache.CacheLoaderException;
import com.gemstone.gemfire.cache.LoaderHelper;
import com.gemstone.gemfire.cache.RegionAttributes;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.data.gemfire.CacheFactoryBean;
import org.springframework.data.gemfire.PartitionedRegionFactoryBean;
import org.springframework.data.gemfire.RegionAttributesFactoryBean;
import org.springframework.data.gemfire.server.CacheServerFactoryBean;

/**
 * The SpringGemFireServerApplication class...
 *
 * @author John Blum
 * @since 1.0.0
 */
@SpringBootApplication
@SuppressWarnings("unused")
public class SpringGemFireServerApplication {

    static final boolean DEFAULT_AUTO_STARTUP = true;

    public static final int DEFAULT_MAX_CONNECTIONS = 100;

    public static void main(final String[] args) {
        SpringApplication.run(SpringGemFireServerApplication.class, args);
    }

    @Bean
    PropertyPlaceholderConfigurer propertyPlaceholderConfigurer() {
        return new PropertyPlaceholderConfigurer();
    }

    String applicationName() {
        return SpringGemFireServerApplication.class.getSimpleName();
    }

    @Bean
    Properties gemfireProperties(@Value("${gemfire.log.level:config}") String logLevel,
            @Value("${gemfire.locator.host-port:localhost[11235]}") String locatorHostPort,
            @Value("${gemfire.manager.port:1199}") String managerPort) {
        Properties gemfireProperties = new Properties();

        gemfireProperties.setProperty("name", applicationName());
        gemfireProperties.setProperty("mcast-port", "0");
        gemfireProperties.setProperty("log-level", logLevel);
        gemfireProperties.setProperty("locators", locatorHostPort);
        gemfireProperties.setProperty("start-locator", locatorHostPort);
        gemfireProperties.setProperty("jmx-manager", "true");
        gemfireProperties.setProperty("jmx-manager-port", managerPort);
        gemfireProperties.setProperty("jmx-manager-start", "true");

        return gemfireProperties;
    }

    @Bean
    CacheFactoryBean gemfireCache(@Qualifier("gemfireProperties") Properties gemfireProperties) {
        CacheFactoryBean gemfireCache = new CacheFactoryBean();

        gemfireCache.setClose(true);
        gemfireCache.setProperties(gemfireProperties);

        return gemfireCache;
    }

    @Bean
    CacheServerFactoryBean gemfireCacheServer(Cache gemfireCache,
            @Value("${gemfire.cache.server.bind-address:localhost}") String bindAddress,
            @Value("${gemfire.cache.server.hostname-for-clients:localhost}") String hostNameForClients,
            @Value("${gemfire.cache.server.port:12480}") int port) {

        CacheServerFactoryBean gemfireCacheServer = new CacheServerFactoryBean();

        gemfireCacheServer.setCache(gemfireCache);
        gemfireCacheServer.setAutoStartup(DEFAULT_AUTO_STARTUP);
        gemfireCacheServer.setBindAddress(bindAddress);
        gemfireCacheServer.setHostNameForClients(hostNameForClients);
        gemfireCacheServer.setPort(port);
        gemfireCacheServer.setMaxConnections(DEFAULT_MAX_CONNECTIONS);

        return gemfireCacheServer;
    }

    @Bean
    PartitionedRegionFactoryBean<Long, Long> factorialsRegion(Cache gemfireCache,
            @Qualifier("factorialsRegionAttributes") RegionAttributes<Long, Long> factorialsRegionAttributes) {

        PartitionedRegionFactoryBean<Long, Long> factorialsRegion = new PartitionedRegionFactoryBean<>();

        factorialsRegion.setAttributes(factorialsRegionAttributes);
        factorialsRegion.setCache(gemfireCache);
        factorialsRegion.setClose(false);
        factorialsRegion.setAttributes(factorialsRegionAttributes);
        factorialsRegion.setName("Factorials");
        factorialsRegion.setPersistent(false);

        return factorialsRegion;
    }

    @Bean
    @SuppressWarnings("unchecked")
    RegionAttributesFactoryBean factorialsRegionAttributes() {
        RegionAttributesFactoryBean factorialsRegionAttributes = new RegionAttributesFactoryBean();

        factorialsRegionAttributes.setCacheLoader(factorialsCacheLoader());
        factorialsRegionAttributes.setKeyConstraint(Long.class);
        factorialsRegionAttributes.setValueConstraint(Long.class);

        return factorialsRegionAttributes;
    }

    @Bean
    FactorialsCacheLoader factorialsCacheLoader() {
        return new FactorialsCacheLoader();
    }

    class FactorialsCacheLoader implements CacheLoader<Long, Long> {

        // stupid, naive implementation of Factorial!
        public Long load(LoaderHelper<Long, Long> loaderHelper) throws CacheLoaderException {
            long number = loaderHelper.getKey();

            assert number >= 0 : String.format("number [%1$d] must be greater than equal to 0", number);

            if (number <= 2L) {
                return (number < 2L ? 1L : 2L);
            }

            long result = number;

            while (number-- > 1L) {
                result *= number;
            }

            return result;
        }

        public void close() {
        }
    }
}