com.ebay.jetstream.config.mongo.MongoScopesUtil.java Source code

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Here is the source code for com.ebay.jetstream.config.mongo.MongoScopesUtil.java

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/*******************************************************************************
 *  Copyright  2012-2015 eBay Software Foundation
 *  This program is dual licensed under the MIT and Apache 2.0 licenses.
 *  Please see LICENSE for more information.
 *******************************************************************************/
package com.ebay.jetstream.config.mongo;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public final class MongoScopesUtil {
    private static final Logger LOGGER = LoggerFactory.getLogger(MongoScopesUtil.class.getPackage().getName());

    public static final boolean isLocalEligible(String changedBeanScope) {
        boolean eligible = false;
        try {
            List<String> servers = parseServerInfo(changedBeanScope);
            String localhostname = java.net.InetAddress.getLocalHost().getHostName();
            if (servers.contains(localhostname)) {
                eligible = true;
            } else {
                localhostname = java.net.InetAddress.getLocalHost().getCanonicalHostName();
                if (servers.contains(localhostname)) {
                    eligible = true;
                }
            }
        } catch (Exception e) {
            LOGGER.info("isLocalEligible method ran into exception ", e);
        }

        return eligible;
    }

    public static final boolean isDCEligible(String changedBeanScope) {
        boolean eligible = false;
        try {
            List<String> datacenters = parseServerInfo(changedBeanScope);
            String localhostname = java.net.InetAddress.getLocalHost().getCanonicalHostName();
            int index = localhostname.indexOf(".");
            if (index != -1) {
                String domainName = localhostname.substring(index + 1);
                if (domainName != null) {
                    for (String datacenter : datacenters) {
                        if (domainName.contains(datacenter)) {
                            eligible = true;
                            break;
                        }
                    }
                }
            }

        } catch (Exception e) {
            LOGGER.info("isDCEligible method ran into exception ", e);
        }

        return eligible;
    }

    public static final List<String> parseServerInfo(String changedBeanScope) {
        List<String> servers = new ArrayList<String>();
        try {
            String[] values = StringUtils.split(changedBeanScope, ":");
            if (values.length >= 2) {
                String serverInfo = values[1];
                servers = Arrays.asList(serverInfo.split(","));

            } else {
                LOGGER.warn(
                        "parseServerInfo - didn't pass arguments properly, value has to be either local:something or dc:something but it was : "
                                + changedBeanScope);
            }
        } catch (Exception e) {
            LOGGER.info("parseServerInfo method ran into exception ", e);
        }

        return servers;
    }

}