com.hazelcast.core.server.HazelcastMemberStarter Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.core.server;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
/**
* Starts a Hazelcast Member.
*/
public final class HazelcastMemberStarter {
private HazelcastMemberStarter() {
}
/**
* Creates a server instance of Hazelcast.
*
* If user sets the system property "print.port", the server writes the port number of the Hazelcast instance to a file.
* The file name is the same as the "print.port" property.
*
* @param args none
*/
public static void main(String[] args) throws IOException {
System.setProperty("hazelcast.tracking.server", "true");
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
printMemberPort(hz);
}
private static void printMemberPort(HazelcastInstance hz) throws IOException {
String printPort = System.getProperty("print.port");
if (printPort != null) {
try (PrintWriter printWriter = new PrintWriter("ports" + File.separator + printPort, StandardCharsets.UTF_8)) {
printWriter.println(hz.getCluster().getLocalMember().getAddress().getPort());
}
}
}
}