Added sendEvents method.

src/main/java/info/fetter/logstashforwarder/Event.java

@@ -0,0 +1,20 @@
+package info.fetter.logstashforwarder;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Event {
+	private Map<String,byte[]> keyValues = new HashMap<String,byte[]>(10);
+	
+	public void addField(String key, byte[] value) {
+		keyValues.put(key, value);
+	}
+	
+	public void addField(String key, String value) {
+		keyValues.put(key, value.getBytes());
+	}
+	
+	public Map<String,byte[]> getKeyValues() {
+		return keyValues;
+	}
+}

src/main/java/info/fetter/logstashforwarder/protocol/LumberjackClient.java

@@ -1,17 +1,16 @@
 package info.fetter.logstashforwarder.protocol;
 
+import info.fetter.logstashforwarder.Event;
+
 import java.io.BufferedOutputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.security.KeyManagementException;
+import java.net.ProtocolException;
 import java.security.KeyStore;
-import java.security.KeyStoreException;
+import java.util.ArrayList;
-import java.security.NoSuchAlgorithmException;
-import java.security.cert.CertificateException;
 import java.util.List;
 import java.util.Map;
 import java.util.zip.Deflater;
@@ -36,10 +35,11 @@ public class LumberjackClient {
 	private DataInputStream input;
 	private int sequence = 1;
 
-	public LumberjackClient(String keyStorePath, String server, int port) throws NoSuchAlgorithmException, CertificateException, FileNotFoundException, IOException, KeyStoreException, KeyManagementException {
+	public LumberjackClient(String keyStorePath, String server, int port) throws IOException {
 		this.server = server;
 		this.port = port;
 
+		try {
 			keyStore = KeyStore.getInstance("JKS");
 			keyStore.load(new FileInputStream(keyStorePath), null);
 
@@ -56,6 +56,11 @@ public class LumberjackClient {
 
 			output = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));
 			input = new DataInputStream(socket.getInputStream());
+		} catch(IOException e) {
+			throw e;
+		} catch(Exception e) {
+			throw new RuntimeException(e);
+		}
 	}
 
 	public int sendWindowSizeFrame(int size) throws IOException {
@@ -120,19 +125,31 @@ public class LumberjackClient {
 		return 6 + compressor.getTotalOut();
 	}
 
-	public int readAckFrame() throws IOException {
+	public int readAckFrame() throws ProtocolException, IOException {
 		byte protocolVersion = input.readByte();
 		if(protocolVersion != PROTOCOL_VERSION) {
-			throw new IOException("Protocol version should be 1, received " + protocolVersion);
+			throw new ProtocolException("Protocol version should be 1, received " + protocolVersion);
 		}
 		byte frameType = input.readByte();
 		if(frameType != FRAME_ACK) {
-			throw new IOException("Frame type should be Ack, received " + frameType);
+			throw new ProtocolException("Frame type should be Ack, received " + frameType);
 		}
 		int sequenceNumber = input.readInt();
 		return sequenceNumber;
 	}
 
+	public int sendEvents(List<Event> eventList) throws IOException {
+		int beginSequence = sequence;
+		int numberOfEvents = eventList.size();
+		List<Map<String,byte[]>> keyValuesList = new ArrayList<Map<String,byte[]>>(numberOfEvents);
+		for(Event event : eventList) {
+			keyValuesList.add(event.getKeyValues());
+		}
+		sendCompressedFrame(keyValuesList);
+		while(readAckFrame() < sequence) {}
+		return sequence - beginSequence;
+	}
+
 	public void close() throws IOException {
 		socket.close();
 	}