com.homeadvisor.kafdrop.util.JmxUtils.java Source code

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Here is the source code for com.homeadvisor.kafdrop.util.JmxUtils.java

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/*
 * Copyright 2016 HomeAdvisor, Inc.
 *
 * 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 com.homeadvisor.kafdrop.util;

import com.google.common.primitives.Ints;
import org.springframework.core.env.Environment;
import sun.management.Agent;

import java.util.Optional;
import java.util.Properties;

public abstract class JmxUtils {
    public static final String JMX_PORT_PROPERTY = "com.sun.management.jmxremote.port";

    public static int getJmxPort(final Environment environment) {
        Optional<Integer> jmxPort = Optional.empty();

        final Properties managementProperties = Agent.getManagementProperties();
        if (managementProperties != null) {
            final String portProperty = managementProperties.getProperty(JMX_PORT_PROPERTY);
            if (portProperty != null) {
                final Optional<Integer> port = Optional.ofNullable(Ints.tryParse(portProperty));
                jmxPort = port;
            }
        }
        return jmxPort.orElse(0);
    }
}