Merge pull request #7 from informatik-ag-ngl/f/basic_infrastructure

Added basic infrastructure

.settings/org.eclipse.jdt.ui.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.ui.text.custom_code_templates=

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>informatik-ag-ngl</groupId>
 	<artifactId>envoy-server-standalone</artifactId>
-	<version>0.0.1-SNAPSHOT</version>
+	<version>0.1-alpha</version>
 
 	<name>Envoy Server</name>
 	<url>https://github.com/informatik-ag-ngl/envoy-server-standalone</url>
@@ -17,6 +17,19 @@
 		<maven.compiler.target>1.8</maven.compiler.target>
 	</properties>
 
+	<dependencies>
+		<dependency>
+			<groupId>informatik-ag-ngl</groupId>
+			<artifactId>envoy-common</artifactId>
+			<version>0.2-alpha</version>
+		</dependency>
+		<dependency>
+			<groupId>informatik-ag-ngl</groupId>
+			<artifactId>java-nio-server</artifactId>
+			<version>0.0.1-SNAPSHOT</version>
+		</dependency>
+	</dependencies>
+
 	<build>
 		<finalName>envoy-server-standalone</finalName>
 	</build>

src/main/java/envoy/server/ObjectMessageProcessor.java

@@ -0,0 +1,31 @@
+package envoy.server;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+
+import com.jenkov.nioserver.IMessageProcessor;
+import com.jenkov.nioserver.Message;
+import com.jenkov.nioserver.WriteProxy;
+
+/**
+ * Project: <strong>envoy-server-standalone</strong><br>
+ * File: <strong>ObjectMessageProcessor.java</strong><br>
+ * Created: <strong>28.12.2019</strong><br>
+ * 
+ * @author Kai S. K. Engelbart
+ * @since Envoy Server Standalone v0.1-alpha
+ */
+public class ObjectMessageProcessor implements IMessageProcessor {
+
+	@Override
+	public void process(Message message, WriteProxy writeProxy) {
+		try (ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(message.sharedArray, message.offset + 4, message.length - 4))) {
+			Object obj = in.readObject();
+			// TODO: Process pipeline
+			System.out.println("Read object: " + obj.toString());
+		} catch (IOException | ClassNotFoundException e) {
+			e.printStackTrace();
+		}
+	}
+}

src/main/java/envoy/server/ObjectMessageReader.java

@@ -0,0 +1,66 @@
+package envoy.server;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.jenkov.nioserver.IMessageReader;
+import com.jenkov.nioserver.Message;
+import com.jenkov.nioserver.MessageBuffer;
+import com.jenkov.nioserver.Socket;
+
+/**
+ * Project: <strong>envoy-server-standalone</strong><br>
+ * File: <strong>ObjectMessageReader.java</strong><br>
+ * Created: <strong>28.12.2019</strong><br>
+ * 
+ * @author Kai S. K. Engelbart
+ * @since Envoy Server Standalone v0.1-alpha
+ */
+public class ObjectMessageReader implements IMessageReader {
+
+	private List<Message>	completeMessages	= new ArrayList<>();
+	private Message			nextMessage;
+	private MessageBuffer	messageBuffer;
+
+	@Override
+	public void init(MessageBuffer messageBuffer) {
+		this.messageBuffer	= messageBuffer;
+		nextMessage			= messageBuffer.getMessage();
+	}
+
+	@Override
+	public void read(Socket socket, ByteBuffer buffer) throws IOException {
+		socket.read(buffer);
+		buffer.flip();
+
+		if (!buffer.hasRemaining()) {
+			buffer.clear();
+			return;
+		}
+
+		nextMessage.writeToMessage(buffer);
+
+		// Get message length
+		if (nextMessage.length - nextMessage.offset < 4) return;
+		int length = fromByteArray(nextMessage.sharedArray, nextMessage.offset) + 4;
+
+		if (nextMessage.length - nextMessage.offset >= length) {
+			Message message = messageBuffer.getMessage();
+			message.writePartialMessageToMessage(nextMessage, nextMessage.offset + length);
+			completeMessages.add(nextMessage);
+			nextMessage = message;
+		}
+
+		buffer.clear();
+	}
+
+	private int fromByteArray(byte[] bytes, int offset) {
+		return ((bytes[offset] & 0xFF) << 24) | ((bytes[offset + 1] & 0xFF) << 16) | ((bytes[offset + 2] & 0xFF) << 8)
+				| ((bytes[offset + 3] & 0xFF) << 0);
+	}
+
+	@Override
+	public List<Message> getMessages() { return completeMessages; }
+}

src/main/java/envoy/server/Startup.java

@@ -0,0 +1,21 @@
+package envoy.server;
+
+import java.io.IOException;
+
+import com.jenkov.nioserver.Server;
+
+/**
+ * Project: <strong>envoy-server-standalone</strong><br>
+ * File: <strong>Startup.java</strong><br>
+ * Created: <strong>24.12.2019</strong><br>
+ * 
+ * @author Kai S. K. Engelbart
+ * @since Envoy Server Standalone v0.1-alpha
+ */
+public class Startup {
+
+	public static void main(String[] args) throws IOException {
+		Server server = new Server(8080, () -> new ObjectMessageReader(), new ObjectMessageProcessor());
+		server.start();
+	}
+}