Cleanup.

src/main/java/biz/nellemann/syslogd/Application.java

@@ -15,16 +15,6 @@
  */
 package biz.nellemann.syslogd;
 
-import biz.nellemann.syslogd.msg.SyslogMessage;
-import biz.nellemann.syslogd.net.*;
-import biz.nellemann.syslogd.parser.GelfParser;
-import biz.nellemann.syslogd.parser.SyslogParser;
-import biz.nellemann.syslogd.parser.SyslogParserRfc3164;
-import biz.nellemann.syslogd.parser.SyslogParserRfc5424;
-
-import picocli.CommandLine;
-import picocli.CommandLine.Command;
-
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.net.URI;
@@ -34,6 +24,19 @@ import java.util.List;
 import java.util.Locale;
 import java.util.concurrent.Callable;
 
+import biz.nellemann.syslogd.msg.SyslogMessage;
+import biz.nellemann.syslogd.net.GelfClient;
+import biz.nellemann.syslogd.net.LokiClient;
+import biz.nellemann.syslogd.net.TcpServer;
+import biz.nellemann.syslogd.net.UdpClient;
+import biz.nellemann.syslogd.net.UdpServer;
+import biz.nellemann.syslogd.parser.GelfParser;
+import biz.nellemann.syslogd.parser.SyslogParser;
+import biz.nellemann.syslogd.parser.SyslogParserRfc3164;
+import biz.nellemann.syslogd.parser.SyslogParserRfc5424;
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+
 @Command(name = "syslogd",
         mixinStandardHelpOptions = true,
         versionProvider = biz.nellemann.syslogd.VersionProvider.class)
@@ -152,7 +155,7 @@ public class Application implements Callable<Integer>, LogReceiveListener {
 
         if(msg != null) {
 
-            if(logForwardListeners.size() > 0) {
+            if(!logForwardListeners.isEmpty()) {
                 sendForwardEvent(msg);
             }
 

src/main/java/biz/nellemann/syslogd/InputReader.java

@@ -1,12 +1,12 @@
 package biz.nellemann.syslogd;
 
-import biz.nellemann.syslogd.msg.SyslogMessage;
-
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Scanner;
 
+import biz.nellemann.syslogd.msg.SyslogMessage;
+
 public class InputReader extends Thread {
 
     private final Scanner input;
@@ -17,6 +17,7 @@ public class InputReader extends Thread {
         this.protocol = protocol;
     }
 
+    @Override
     public void run() {
 
         while(input.hasNextLine()) {

src/main/java/biz/nellemann/syslogd/net/GelfClient.java

@@ -1,13 +1,14 @@
 package biz.nellemann.syslogd.net;
 
-import biz.nellemann.syslogd.LogForwardEvent;
-import biz.nellemann.syslogd.SyslogPrinter;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.net.InetSocketAddress;
 import java.net.SocketException;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import biz.nellemann.syslogd.LogForwardEvent;
+import biz.nellemann.syslogd.SyslogPrinter;
+
 public class GelfClient extends UdpClient {
 
     private final static Logger log = LoggerFactory.getLogger(GelfClient.class);

src/main/java/biz/nellemann/syslogd/net/LokiClient.java

@@ -15,19 +15,22 @@
  */
 package biz.nellemann.syslogd.net;
 
-import biz.nellemann.syslogd.LogForwardEvent;
-import biz.nellemann.syslogd.LogForwardListener;
-import biz.nellemann.syslogd.SyslogPrinter;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.net.*;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.nio.charset.StandardCharsets;
 import java.util.concurrent.ArrayBlockingQueue;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import biz.nellemann.syslogd.LogForwardEvent;
+import biz.nellemann.syslogd.LogForwardListener;
+import biz.nellemann.syslogd.SyslogPrinter;
+
 public class LokiClient implements LogForwardListener, Runnable {
 
     private final static Logger log = LoggerFactory.getLogger(LokiClient.class);
@@ -84,7 +87,7 @@ public class LokiClient implements LogForwardListener, Runnable {
         while (true) {
             try {
                 send(blockingQueue.take());
-            } catch (Exception e) {
+            } catch (MalformedURLException | InterruptedException e) {
                 log.warn(e.getMessage());
             }
         }

src/main/java/biz/nellemann/syslogd/net/UdpServer.java

@@ -15,9 +15,6 @@
  */
 package biz.nellemann.syslogd.net;
 
-import biz.nellemann.syslogd.LogReceiveEvent;
-import biz.nellemann.syslogd.LogReceiveListener;
-
 import java.io.IOException;
 import java.net.DatagramPacket;
 import java.net.DatagramSocket;
@@ -27,6 +24,9 @@ import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import biz.nellemann.syslogd.LogReceiveEvent;
+import biz.nellemann.syslogd.LogReceiveListener;
+
 public class UdpServer extends Thread {
 
     private final static Logger log = LoggerFactory.getLogger(UdpServer.class);
@@ -38,6 +38,7 @@ public class UdpServer extends Thread {
         socket = new DatagramSocket(port);
     }
 
+    @Override
     public void run() {
 
         byte[] buf = new byte[8192];
@@ -48,7 +49,7 @@ public class UdpServer extends Thread {
                 socket.receive(packet);
                 //String packetData = new String(packet.getData(), packet.getOffset(), packet.getLength(), StandardCharsets.UTF_8);
                 sendEvent(packet);
-            } catch (Exception e) {
+            } catch (IOException e) {
                 log.error("run() - error: {}", e.getMessage());
                 listen = false;
             }

src/main/java/biz/nellemann/syslogd/parser/GelfParser.java

@@ -1,17 +1,19 @@
 package biz.nellemann.syslogd.parser;
 
-import biz.nellemann.syslogd.msg.SyslogMessage;
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
-import org.apache.commons.collections4.map.PassiveExpiringMap;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.time.Instant;
 import java.util.Arrays;
 import java.util.TreeMap;
 
+import org.apache.commons.collections4.map.PassiveExpiringMap;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+
+import biz.nellemann.syslogd.msg.SyslogMessage;
+
 /*
     For more information about the GELF format, visit:  https://go2docs.graylog.org/5-0/getting_in_log_data/gelf.html
  */

src/main/java/biz/nellemann/syslogd/parser/SyslogParser.java

@@ -15,15 +15,16 @@
  */
 package biz.nellemann.syslogd.parser;
 
-import biz.nellemann.syslogd.msg.SyslogMessage;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.nio.charset.StandardCharsets;
 import java.time.Instant;
 import java.util.zip.DataFormatException;
 import java.util.zip.Inflater;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import biz.nellemann.syslogd.msg.SyslogMessage;
+
 public abstract class SyslogParser {
 
     private final static Logger log = LoggerFactory.getLogger(SyslogParser.class);

src/main/java/biz/nellemann/syslogd/parser/SyslogParserRfc3164.java

@@ -15,18 +15,21 @@
  */
 package biz.nellemann.syslogd.parser;
 
-import biz.nellemann.syslogd.msg.Facility;
-import biz.nellemann.syslogd.msg.Severity;
-import biz.nellemann.syslogd.msg.SyslogMessage;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.time.*;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import biz.nellemann.syslogd.msg.Facility;
+import biz.nellemann.syslogd.msg.Severity;
+import biz.nellemann.syslogd.msg.SyslogMessage;
+
 public class SyslogParserRfc3164 extends SyslogParser {
 
     private final static Logger log = LoggerFactory.getLogger(SyslogParserRfc3164.class);
@@ -89,6 +92,7 @@ public class SyslogParserRfc3164 extends SyslogParser {
      * @param dateString
      * @return
      */
+    @Override
     public Instant parseTimestamp(String dateString) {
 
         // We need to add current year to parse date correctly

src/main/java/biz/nellemann/syslogd/parser/SyslogParserRfc5424.java

@@ -15,20 +15,21 @@
  */
 package biz.nellemann.syslogd.parser;
 
-import biz.nellemann.syslogd.msg.Severity;
-import biz.nellemann.syslogd.msg.Facility;
-import biz.nellemann.syslogd.msg.SyslogMessage;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.*;
+import java.time.Instant;
 import java.util.Arrays;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import biz.nellemann.syslogd.msg.Facility;
+import biz.nellemann.syslogd.msg.Severity;
+import biz.nellemann.syslogd.msg.SyslogMessage;
+
 public class SyslogParserRfc5424 extends SyslogParser {
 
     private final static Logger log = LoggerFactory.getLogger(SyslogParserRfc5424.class);
@@ -98,6 +99,7 @@ public class SyslogParserRfc5424 extends SyslogParser {
      * @param dateString
      * @return
      */
+    @Override
     public Instant parseTimestamp(String dateString) {
 
         /*