initial

src/main/java/de/hottis/mbusMaster/MbusMaster.java

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+package de.hottis.mbusMaster;
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.InputStreamReader;
+import java.io.BufferedReader;
+import java.util.Properties;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+
+public class MbusMaster {
+	static final String PROPS_FILENAME = "mbusMaster.props";
+	static final Logger logger = LogManager.getRootLogger();
+	
+	
+	public static void main(String[] args) throws Exception {
+		logger.info("MbusMaster starting");
+
+		/*
+		final Properties config = new Properties();
+		try (FileInputStream propsFileInputStream = new FileInputStream(PROPS_FILENAME)) {
+			config.load(propsFileInputStream);
+		}
+		logger.debug("Configuration loaded");
+		*/
+
+		ProcessBuilder pb = new ProcessBuilder("/usr/local/bin/mbusgw", "-l", "-v");
+		pb.redirectError(ProcessBuilder.Redirect.INHERIT);
+		Process p = pb.start();
+		System.out.println("Process started");
+
+
+
+		InputStream i = p.getInputStream();
+		OutputStream o = p.getOutputStream();
+		System.out.println("Streams collected");
+
+		byte[] b = { 0x5b, 80 };
+
+		o.write(b);
+		System.out.println("Data written");
+
+		o.flush();
+		System.out.println("Data flushed");
+
+
+		byte[] header = new byte[2];
+		int n = i.read(header, 0, 2);
+		int responseCode = Byte.toUnsignedInt(header[0]);
+		int responseLen = Byte.toUnsignedInt(header[1]);
+		System.out.println("n: " + n + ", h: " + responseCode + ", l: " + responseLen);
+
+		byte[] frame = new byte[responseLen];
+		n = i.read(frame, 0, responseLen);
+		for (byte x : frame) {
+			System.out.print(Integer.toHexString(Byte.toUnsignedInt(x)) + " ");
+		}
+		System.out.println();
+
+
+
+	}		
+}

src/main/resources/log4j2.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration debug="false">
+  <Appenders>
+    <Console name="ConsoleAppender" target="SYSTEM_OUT">
+      <PatternLayout pattern="%d [%t, %F, %L] %-5level - %msg%n%throwable"/> 
+    </Console>
+    <File name="FileAppender" fileName="/tmp/mqttMBusConverter.log">
+      <PatternLayout pattern="%d [%t, %F, %L] %-5level - %msg%n%throwable"/> 
+    </File>
+  </Appenders>
+  <Loggers>
+    <Root level="debug">
+      <AppenderRef ref="ConsoleAppender"/>
+      <AppenderRef ref="FileAppender"/>
+    </Root>
+  </Loggers>
+</Configuration>

src/test/java/de/hottis/mbusMaster/AppTest.java

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+package de.hottis.mbusMaster;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}