From be5735cca339b9f2e59f54dc788c9f1f192ed69f Mon Sep 17 00:00:00 2001
From: openerp <loic_hausammann@hotmail.com>
Date: Mon, 12 Oct 2015 11:36:17 +0200
Subject: [PATCH] Add possibility to choose the error correction level for the
 encoding

---
 .../zxing/client/j2se/CommandLineEncoder.java   | 17 +++++++++++++----
 .../google/zxing/client/j2se/EncoderConfig.java |  8 ++++++--
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java b/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
index 8ffb36bb1..c4501c3cd 100644
--- a/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
+++ b/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
@@ -16,12 +16,16 @@
 
 package com.google.zxing.client.j2se;
 
-import com.beust.jcommander.JCommander;
+import com.google.zxing.EncodeHintType;
 import com.google.zxing.MultiFormatWriter;
 import com.google.zxing.common.BitMatrix;
 
+import com.beust.jcommander.JCommander;
+
 import java.nio.file.Paths;
+import java.util.HashMap;
 import java.util.Locale;
+import java.util.Map;
 
 /**
  * Command line utility for encoding barcodes.
@@ -46,10 +50,15 @@ public final class CommandLineEncoder {
     if (EncoderConfig.DEFAULT_OUTPUT_FILE_BASE.equals(outFileString)) {
       outFileString += '.' + config.imageFormat.toLowerCase(Locale.ENGLISH);
     }
-    
+    Map<EncodeHintType, Object> hints = new HashMap<>();
+    if (config.errorCorrectionLevel != null) {
+      hints.put(EncodeHintType.ERROR_CORRECTION, config.errorCorrectionLevel);
+    }
     BitMatrix matrix = new MultiFormatWriter().encode(
-        config.contents.get(0), config.barcodeFormat, config.width, config.height);
-    MatrixToImageWriter.writeToPath(matrix, config.imageFormat, Paths.get(outFileString));
+        config.contents.get(0), config.barcodeFormat, config.width,
+        config.height, hints);
+    MatrixToImageWriter.writeToPath(matrix, config.imageFormat,
+        Paths.get(outFileString));
   }
 
 }
diff --git a/javase/src/main/java/com/google/zxing/client/j2se/EncoderConfig.java b/javase/src/main/java/com/google/zxing/client/j2se/EncoderConfig.java
index 1b1605faa..f483d9d64 100644
--- a/javase/src/main/java/com/google/zxing/client/j2se/EncoderConfig.java
+++ b/javase/src/main/java/com/google/zxing/client/j2se/EncoderConfig.java
@@ -31,11 +31,11 @@ final class EncoderConfig {
   BarcodeFormat barcodeFormat = BarcodeFormat.QR_CODE;
 
   @Parameter(names = "--image_format",
-      description = "image output format, such as PNG, JPG, GIF")
+      description = "Image output format, such as PNG, JPG, GIF")
   String imageFormat = "PNG";
 
   @Parameter(names = "--output",
-      description = " File to write to. Defaults to out.png")
+      description = "File to write to. Defaults to out.png")
   String outputFileBase = DEFAULT_OUTPUT_FILE_BASE;
 
   @Parameter(names = "--width",
@@ -48,6 +48,10 @@ final class EncoderConfig {
       validateWith = PositiveInteger.class)
   int height = 300;
 
+  @Parameter(names = "--error_correction_level",
+      description = "Error correction level for the encoding")
+  String errorCorrectionLevel = null;
+
   @Parameter(names = "--help",
       description = "Prints this help message",
       help = true)