[유치수] [NOBTS] create class associated with Tagging.

git-svn-id: http://svn.bds.nhncorp.com/pe/hippo-tomcat-profiler/trunk@512 84d0f5b1-2673-498c-a247-62c4ff18d310

src/main/java/com/profiler/context/Annotation.java

@@ -0,0 +1,52 @@
+package com.profiler.context;
+
+public class Annotation {
+
+	protected final long timestamp;
+	protected final String value;
+	protected final EndPoint endPoint;
+
+	protected long processStart;
+	protected long processEnd;
+
+	/**
+	 * @param timestamp
+	 *            when was this annotation created? microseconds from epoch
+	 * @param value
+	 *            description of what happened at the timestamp could for
+	 *            example be "cache miss for key: x"
+	 * @param endPoint
+	 *            host this annotation was created on
+	 */
+	public Annotation(long timestamp, String value, EndPoint endPoint) {
+		this.timestamp = timestamp;
+		this.value = value;
+		this.endPoint = endPoint;
+	}
+
+	public long getTimestamp() {
+		return timestamp;
+	}
+
+	public void processStart() {
+		processStart = System.nanoTime();
+	}
+
+	public void processEnd() {
+		processEnd = System.nanoTime();
+	}
+
+	public String toString() {
+		StringBuilder sb = new StringBuilder();
+
+		sb.append("Annotation[");
+		sb.append("Timestamp=").append(timestamp);
+		sb.append("Value=").append(value);
+		sb.append("EndPoint=").append(endPoint);
+		sb.append("ProcessStart=").append(processStart);
+		sb.append("ProcessEnd=").append(processEnd);
+		sb.append("]");
+
+		return sb.toString();
+	}
+}