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

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Here is the source code for io.pivotal.gemfire.main.GemFireServerXmlApplication.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 org.springframework.util.StringUtils;

import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.cache.CacheLoader;
import com.gemstone.gemfire.cache.CacheLoaderException;
import com.gemstone.gemfire.cache.Declarable;
import com.gemstone.gemfire.cache.LoaderHelper;

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

    public static final String DEFAULT_MAX_CONNECTIONS = "100";
    public static final String DEFAULT_MAX_TIME_BETWEEN_PINGS = "60000";

    static {
        System.setProperty("BIND_ADDRESS", systemProperty("gemfire.cache.server.bind-address", "localhost"));
        System.setProperty("HOSTNAME_FOR_CLIENTS",
                systemProperty("gemfire.cache.server.hostname-for-clients", "localhost"));
        System.setProperty("PORT", systemProperty("gemfire.cache.server.port", "12480"));
        System.setProperty("MAX_CONNECTIONS", DEFAULT_MAX_CONNECTIONS);
        System.setProperty("MAX_TIME_BETWEEN_PINGS", DEFAULT_MAX_TIME_BETWEEN_PINGS);
    }

    public static void main(String[] args) throws Exception {
        registerShutdownHook(gemfireCache(gemfireProperties()));
    }

    static String systemProperty(String propertyName, String defaultValue) {
        String propertyValue = System.getProperty(propertyName);
        return (StringUtils.hasText(propertyValue) ? propertyValue : defaultValue);
    }

    static Properties gemfireProperties() {
        Properties gemfireProperties = new Properties();

        gemfireProperties.setProperty("name", GemFireServerXmlApplication.class.getSimpleName());
        gemfireProperties.setProperty("mcast-port", "0");
        gemfireProperties.setProperty("log-level", systemProperty("gemfire.log.level", "config"));
        gemfireProperties.setProperty("locators", systemProperty("gemfire.locator.host-port", "localhost[11235]"));
        gemfireProperties.setProperty("start-locator",
                systemProperty("gemfire.locator.host-port", "localhost[11235]"));
        gemfireProperties.setProperty("jmx-manager", "true");
        gemfireProperties.setProperty("jmx-manager-port", systemProperty("gemfire.manager.port", "1199"));
        gemfireProperties.setProperty("jmx-manager-start", "true");

        return gemfireProperties;
    }

    static Cache gemfireCache(Properties gemfireProperties) {
        return new CacheFactory(gemfireProperties).set("cache-xml-file", "server-cache.xml").create();
    }

    static void registerShutdownHook(Cache gemfireCache) {
        Runtime.getRuntime().addShutdownHook(new Thread(gemfireCache::close, "GemFire Server Shutdown Thread"));
    }

    public static class SquareRootsCacheLoader implements CacheLoader<Long, Long>, Declarable {

        public Long load(final LoaderHelper<Long, Long> helper) throws CacheLoaderException {
            long number = helper.getKey();
            return new Double(Math.sqrt(number)).longValue();
        }

        public void init(final Properties props) {
        }

        public void close() {
        }
    }

}