From 9f70303e5ded7def81ff607cafabcac397325b61 Mon Sep 17 00:00:00 2001
From: jaemin7666 <jaemin7666@daum.net>
Date: Sat, 6 Jun 2020 21:12:34 +0900
Subject: [PATCH] 1. Design pattern name : Factory method pattern 2. Design
 pattern object : QrSegment, MakeAlphaNumericToSegment,MakeBytesToSegment, 
 MakeNumericToSegment 3. reason : function to make segment is changed by kind
 of string. And there is possible to add function to make segment.

4. explanation :
product : MakeSegment,
concrete product : MakeBytesToSegment, MakeNumericToSegment,
MakeAlphaNumericToSegment
creator : QrSegmentTo
concrete creator : MakeSegmentFactory
---
 .../java/io/nayuki/qrcodegen/MakeSegment.java     |  4 ++++
 .../io/nayuki/qrcodegen/MakeSegmentFactory.java   | 15 +++++++++++++++
 .../main/java/io/nayuki/qrcodegen/QrSegment.java  | 10 ++++++++++
 3 files changed, 29 insertions(+)
 create mode 100644 java/src/main/java/io/nayuki/qrcodegen/MakeSegment.java
 create mode 100644 java/src/main/java/io/nayuki/qrcodegen/MakeSegmentFactory.java

diff --git a/java/src/main/java/io/nayuki/qrcodegen/MakeSegment.java b/java/src/main/java/io/nayuki/qrcodegen/MakeSegment.java
new file mode 100644
index 0000000..ccca2ba
--- /dev/null
+++ b/java/src/main/java/io/nayuki/qrcodegen/MakeSegment.java
@@ -0,0 +1,4 @@
+
+public interface MakeSegment {
+	public QrSegment excute(String text);
+}
diff --git a/java/src/main/java/io/nayuki/qrcodegen/MakeSegmentFactory.java b/java/src/main/java/io/nayuki/qrcodegen/MakeSegmentFactory.java
new file mode 100644
index 0000000..b21a516
--- /dev/null
+++ b/java/src/main/java/io/nayuki/qrcodegen/MakeSegmentFactory.java
@@ -0,0 +1,15 @@
+public class MakeSegmentFactory {
+	public static MakeSegment getMakeSegment(String text) {
+		MakeSegment makeSegment = null;
+		
+		if (text.equals(""));  // Leave result empty
+		else if (QrSegment.NUMERIC_REGEX.matcher(text).matches())
+			makeSegment = new MakeNumericToSegment();
+		else if (QrSegment.ALPHANUMERIC_REGEX.matcher(text).matches())
+			makeSegment = new MakeAlphaNumericToSegment();
+		else
+			makeSegment = new MakeBytesToSegment();
+		
+		return makeSegment;
+	}
+}
diff --git a/java/src/main/java/io/nayuki/qrcodegen/QrSegment.java b/java/src/main/java/io/nayuki/qrcodegen/QrSegment.java
index 3d261f7..780b1bc 100644
--- a/java/src/main/java/io/nayuki/qrcodegen/QrSegment.java
+++ b/java/src/main/java/io/nayuki/qrcodegen/QrSegment.java
@@ -71,7 +71,17 @@ public final class QrSegment {
 		return segments;
 	}
 	
+	public static List<QrSegment> makeSegments(String text) {
+		Objects.requireNonNull(text);
+		// Select the most efficient segment encoding automatically
+		List<QrSegment> segments = new ArrayList<>();
+			
+		MakeSegment makeSegment = MakeSegmentFactory.getMakeSegment(text);
+		
+		segments.add(makeSegment.excute(text));
 	
+		return segments;
+	}
 	/**
 	 * Returns a segment representing an Extended Channel Interpretation
 	 * (ECI) designator with the specified assignment value.