diff --git a/slb-agent/src/main/java/com/dianping/platform/slb/agent/core/task/LogFormatter.java b/slb-agent/src/main/java/com/dianping/platform/slb/agent/core/task/LogFormatter.java
new file mode 100644
index 0000000..37140ab
--- /dev/null
+++ b/slb-agent/src/main/java/com/dianping/platform/slb/agent/core/task/LogFormatter.java
@@ -0,0 +1,56 @@
+package com.dianping.platform.slb.agent.core.task;
+
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Map;
+
+/**
+ * dianping.com @2015
+ * slb - soft load balance
+ * <p/>
+ * Created by leon.li(Li Yang)
+ */
+@Service
+public class LogFormatter {
+
+	public static final String NEW_LINE = "\r\n";
+
+	public static final String CHUNK_TERMINATOR = "\r\n--9ed2b78c112fbd17a8511812c554da62941629a8--\r\n";
+
+	public static final String LOG_TERMINATOR = "\r\n--255220d51dc7fb4aacddadedfe252a346da267d4--\r\n";
+
+	public void writeHeader(OutputStream logOut, Map<String, String> headers) throws IOException {
+		StringBuilder sb = new StringBuilder();
+
+		if (headers != null) {
+			for (Map.Entry<String, String> headEntry : headers.entrySet()) {
+				sb.append(headEntry.getKey());
+				sb.append(": ");
+				sb.append(headEntry.getValue());
+				sb.append(NEW_LINE);
+			}
+		}
+
+		if (sb.length() > 0) {
+			sb.append(NEW_LINE);
+		} else {
+			sb.append(NEW_LINE);
+			sb.append(NEW_LINE);
+		}
+
+		logOut.write(sb.toString().getBytes());
+	}
+
+	public void writeChunkTerminator(OutputStream logOut) throws IOException {
+		logOut.write(CHUNK_TERMINATOR.getBytes("ascii"));
+		logOut.flush();
+	}
+
+	public void writeTerminator(OutputStream logOut) throws IOException {
+		logOut.write(LOG_TERMINATOR.getBytes("ascii"));
+		logOut.flush();
+	}
+
+}