Новые модули: McProcessServer и McScreenServer
Данные модули реализуют один из способов создания процесса сервера Minecraft. Process - это создание контролируемого процесса, который завязан на самом ASys. Проще говоря, выключится ASys - "упадет" процесс. Screen - подходит только для Unix-based систем (или запуск в Cygwin). Для запуска процесса используется утилита screen. Для контроля работы процесса так же задействуются утилиты pgrep и ps. Созданный процесс является неконтролируемым и при отключении ASys, созданный процесс продолжит "жизнь".
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73
McScreenServer/pom.xml
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73
McScreenServer/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
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http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<name>ASys MC-Server Screen implementation</name>
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<developers>
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<developer>
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<name>DmitriyMX</name>
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<email>mail@dmiriymx.ru</email>
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</developer>
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</developers>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<java.version>1.8</java.version>
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</properties>
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<groupId>asys.mcserver</groupId>
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<artifactId>screen-impl</artifactId>
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<version>0.1</version>
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<packaging>bundle</packaging>
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<dependencies>
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<dependency>
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<groupId>asys</groupId>
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<artifactId>api</artifactId>
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<version>0.6</version>
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</dependency>
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<dependency>
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<groupId>org.osgi</groupId>
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<artifactId>org.osgi.core</artifactId>
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<version>6.0.0</version>
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</dependency>
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<dependency>
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<groupId>org.apache.felix</groupId>
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<artifactId>org.apache.felix.gogo.runtime</artifactId>
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<version>0.10.0</version>
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</dependency>
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</dependencies>
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<build>
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<finalName>${project.groupId}.${project.artifactId}-${project.version}</finalName>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.5.1</version>
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<configuration>
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<source>${java.version}</source>
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<target>${java.version}</target>
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<encoding>${project.build.sourceEncoding}</encoding>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.felix</groupId>
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<artifactId>maven-bundle-plugin</artifactId>
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<version>3.0.1</version>
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<extensions>true</extensions>
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<configuration>
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<instructions>
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<Bundle-Name>${project.name}</Bundle-Name>
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<Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
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<Bundle-Activator>asys.mcserver.Activator</Bundle-Activator>
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<Import-Package>asys.api, *</Import-Package>
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</instructions>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>
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32
McScreenServer/src/main/java/asys/mcserver/Activator.java
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32
McScreenServer/src/main/java/asys/mcserver/Activator.java
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/*
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* DmitriyMX <mail@dmitriymx.ru>
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* 2016-08-15
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*/
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package asys.mcserver;
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import asys.api.MinecraftServer;
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import asys.api.MinecraftServerFactory;
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import org.osgi.framework.BundleActivator;
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import org.osgi.framework.BundleContext;
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import org.osgi.framework.ServiceRegistration;
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import java.io.File;
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public class Activator implements BundleActivator, MinecraftServerFactory {
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private ServiceRegistration<?> service;
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@Override
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public void start(BundleContext bundleContext) throws Exception {
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service = bundleContext.registerService(MinecraftServerFactory.class.getName(), this, null);
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}
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@Override
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public void stop(BundleContext bundleContext) throws Exception {
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service.unregister();
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}
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@Override
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public MinecraftServer createServer(String name, File directory, String mainJar, String jvmArgs, String params) {
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return new MinecraftScreenServer(name, directory, mainJar, jvmArgs, params);
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}
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}
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/*
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* DmitriyMX <mail@dmitriymx.ru>
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* 2016-08-15
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*/
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package asys.mcserver;
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import asys.api.MinecraftServer;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Vector;
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public class MinecraftScreenServer implements MinecraftServer {
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private ProcessBuilder startPB;
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private String name;
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private String serverPID;
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public MinecraftScreenServer(String name, File directory, String mainJar, String jvmArgs, String params) {
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startPB = new ProcessBuilder();
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startPB.directory(directory);
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List<String> commandLine = new Vector<>(Arrays.asList(new String[] { "screen", "-dmS", name, "java", "-Dasys.server.name=\"" + name + "\"" }));
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if ((jvmArgs != null) && (!jvmArgs.trim().isEmpty())) {
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commandLine.add(jvmArgs);
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}
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commandLine.add("-jar");
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commandLine.add(mainJar);
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if ((params != null) && (!params.trim().isEmpty())) {
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commandLine.add(params);
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}
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this.startPB.command(commandLine);
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this.name = name;
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}
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public String getName() {
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return name;
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}
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public void start() {
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try {
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startPB.start();
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Thread.sleep(500L);
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Process process = Runtime.getRuntime().exec("bash -c \"screen -ls | sed 's/\\t//g' | grep '\\." + name + "(' | cut -f1 -d.\"");
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BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
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String out = br.readLine();
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br.close();
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process = Runtime.getRuntime().exec("pgrep -P " + out);
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br = new BufferedReader(new InputStreamReader(process.getInputStream()));
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serverPID = br.readLine();
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br.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public void stop() {
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sendCommand("stop");
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}
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public void forceStop() {
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ProcessBuilder sendCmdPB = new ProcessBuilder();
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sendCmdPB.command("screen", "-S", this.name, "-X", "quit");
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try {
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sendCmdPB.start();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public void sendCommand(String command) {
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ProcessBuilder sendCmdPB = new ProcessBuilder();
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sendCmdPB.command("screen", "-S", this.name, "-p", "0", "-X", "stuff", command + "\\r");
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try {
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sendCmdPB.start();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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public boolean isAlive() {
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if (serverPID == null) return false;
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try {
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Process process = Runtime.getRuntime().exec("ps -p " + serverPID);
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BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
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br.readLine();
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String line = br.readLine();
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br.close();
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return line != null;
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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}
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}
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