com.netsteadfast.greenstep.util.HostUtils.java Source code

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Here is the source code for com.netsteadfast.greenstep.util.HostUtils.java

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/* 
 * Copyright 2012-2016 bambooCORE, greenstep of copyright Chen Xin Nien
 * 
 * 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.
 * 
 * -----------------------------------------------------------------------
 * 
 * author:    Chen Xin Nien
 * contact: chen.xin.nien@gmail.com
 * 
 */
package com.netsteadfast.greenstep.util;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

import javax.management.AttributeNotFoundException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.ReflectionException;

import org.apache.catalina.Server;
import org.apache.catalina.Service;
import org.apache.catalina.connector.Connector;
import org.apache.commons.lang3.StringUtils;
import org.apache.coyote.ProtocolHandler;
import org.apache.coyote.http11.Http11AprProtocol;
import org.apache.coyote.http11.Http11NioProtocol;
import org.apache.coyote.http11.Http11Protocol;

public class HostUtils {

    public static int getHttpPort() {
        int port = 8080;
        MBeanServer mBeanServer = MBeanServerFactory.findMBeanServer(null).get(0);
        ObjectName name;
        try {
            name = new ObjectName("Catalina", "type", "Server");
            try {
                Server server = (Server) mBeanServer.getAttribute(name, "managedResource");
                Service[] services = server.findServices();
                for (Service service : services) {
                    for (Connector connector : service.findConnectors()) {
                        ProtocolHandler protocolHandler = connector.getProtocolHandler();
                        if (protocolHandler instanceof Http11Protocol
                                || protocolHandler instanceof Http11AprProtocol
                                || protocolHandler instanceof Http11NioProtocol) {
                            port = connector.getPort();
                        }
                    }
                }
            } catch (AttributeNotFoundException e) {
                e.printStackTrace();
            } catch (InstanceNotFoundException e) {
                e.printStackTrace();
            } catch (MBeanException e) {
                e.printStackTrace();
            } catch (ReflectionException e) {
                e.printStackTrace();
            }
        } catch (MalformedObjectNameException e) {
            e.printStackTrace();
        }
        return port;
    }

    public static String getHostAddress() {
        String hostAddress = "";
        try {
            Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
            for (; nics.hasMoreElements() && "".equals(hostAddress);) {
                NetworkInterface interfece = nics.nextElement();
                if (interfece.getName().toLowerCase().startsWith("lo")) {
                    continue;
                }
                Enumeration<InetAddress> addrs = interfece.getInetAddresses();
                for (; addrs.hasMoreElements() && "".equals(hostAddress);) {
                    InetAddress addr = addrs.nextElement();
                    if (addr.getHostAddress().indexOf(":") > -1) {
                        continue;
                    }
                    hostAddress = addr.getHostAddress();
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
        if (StringUtils.isBlank(hostAddress)) {
            hostAddress = "127.0.0.1";
        }
        return hostAddress;
    }

    public static void main(String args[]) throws Exception {
        Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
        for (; nics.hasMoreElements();) {
            System.out.println("--------------------------------------------------------------------------");
            NetworkInterface interfece = nics.nextElement();
            System.out.println(interfece.getName());
            Enumeration<InetAddress> addrs = interfece.getInetAddresses();
            for (; addrs.hasMoreElements();) {
                InetAddress addr = addrs.nextElement();
                System.out.println(addr.getHostAddress());
            }
        }
    }

}