Initial commit

.gitignore

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+## File-based project format:
+*.ipr
+*.iws
+
+**/.idea
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+
+# ---> Java
+*.class
+
+*/target/*
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# ---> SublimeText
+# cache files for sublime text
+*.tmlanguage.cache
+*.tmPreferences.cache
+*.stTheme.cache
+
+# workspace files are user-specific
+*.sublime-workspace
+
+# project files should be checked into the repository, unless a significant
+# proportion of contributors will probably not be using SublimeText
+# *.sublime-project
+
+# sftp configuration file
+sftp-config.json
+
+# ---> macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+

JavaUDSClient/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>se.rutdev.proxmig</groupId>
+    <artifactId>JavaUDSClient</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>23</maven.compiler.source>
+        <maven.compiler.target>23</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

JavaUDSClient/src/main/java/nu/zoom/checked/client/Main.java

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+package nu.zoom.checked.client;
+
+import java.io.IOException;
+import java.net.StandardProtocolFamily;
+import java.net.UnixDomainSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.SocketChannel;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.UUID;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        new Main().run();
+    }
+
+    private void run() throws IOException {
+        try (var clientChannel = SocketChannel.open(StandardProtocolFamily.UNIX)) {
+            var serverPath = Path.of("/tmp").resolve("udsserver.sock") ;
+            var serverAddress = UnixDomainSocketAddress.of(serverPath);
+            clientChannel.connect(serverAddress);
+
+            var clientMessage = "quit från - " + UUID.randomUUID();
+
+            sendMessage(clientMessage, clientChannel);
+        }
+    }
+
+    private static void sendMessage(String clientMessage, SocketChannel clientChannel) throws IOException {
+        var messageBytes = clientMessage.getBytes(StandardCharsets.UTF_8);
+        var messageBuffer = ByteBuffer.allocate(500);
+        messageBuffer.put((byte) messageBytes.length);
+        messageBuffer.put(messageBytes);
+        messageBuffer.flip();
+        clientChannel.write(messageBuffer);
+    }
+
+    static class MessageToLongException extends Exception {}
+}

JavaUDSServer/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>se.rutdev.proxmig</groupId>
+    <artifactId>JavaUDSServer</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>23</maven.compiler.source>
+        <maven.compiler.target>23</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

JavaUDSServer/src/main/java/nu/zoom/checked/server/Main.java

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+package nu.zoom.checked.server;
+
+import java.io.IOException;
+import java.net.StandardProtocolFamily;
+import java.net.UnixDomainSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        new Main().run();
+    }
+
+    private void run() throws IOException {
+        var path = Path.of("/tmp").resolve("udsserver.sock") ;
+        Files.deleteIfExists(path);
+        var socketAddress = UnixDomainSocketAddress.of(path);
+        ServerSocketChannel serverChannel = ServerSocketChannel
+                .open(StandardProtocolFamily.UNIX);
+        serverChannel.bind(socketAddress);
+
+        boolean keepRunning = true;
+        while (keepRunning) {
+            try (var clientChannel = serverChannel.accept()) {
+                if (clientChannel != null) {
+                    var buffer = ByteBuffer.allocate(500);
+                    clientChannel.read(buffer);
+                    buffer.flip();
+                    var length = Byte.toUnsignedInt(buffer.get());
+                    if (length < 400 && length > 0) {
+                        var rawMessage = new byte[length];
+                        buffer.get(rawMessage);
+                        var message = new String(rawMessage, StandardCharsets.UTF_8);
+                        System.out.println(message);
+                        if (message.startsWith("q")) {
+                            keepRunning = false;
+                        }
+                    }
+                }
+            }
+        }
+
+        serverChannel.close();
+        Files.deleteIfExists(path);
+    }
+}