added object cache

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/common/ObjectCache.java

@@ -0,0 +1,32 @@
+package org.diylc.common;
+
+import java.awt.BasicStroke;
+import java.awt.Stroke;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ObjectCache {
+
+	private static ObjectCache instance;
+	
+	public static ObjectCache getInstance() {
+		if (instance == null) {
+			instance = new ObjectCache();
+		}
+		return instance;
+	}
+	
+	private ObjectCache() {
+	}
+	
+	private Map<Integer, Stroke> basicStrokeMap = new HashMap<Integer, Stroke>();
+	
+	public Stroke fetchBasicStroke(int width) {
+		if (basicStrokeMap.containsKey(width)) {
+			return basicStrokeMap.get(width);
+		}
+		Stroke stroke = new BasicStroke(width);
+		basicStrokeMap.put(width, stroke);
+		return stroke;
+	}
+}