From e2bea65b731468793a93920ef3c781c417526461 Mon Sep 17 00:00:00 2001
From: Robert Theis <robert.m.theis@gmail.com>
Date: Thu, 19 Apr 2018 16:44:51 -0700
Subject: [PATCH] Catch Arabic/Hindi init misconfigurations. Closes #240.

---
 .../com/googlecode/tesseract/android/TessBaseAPI.java | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tess-two/src/com/googlecode/tesseract/android/TessBaseAPI.java b/tess-two/src/com/googlecode/tesseract/android/TessBaseAPI.java
index a11095d69..57b0718a2 100644
--- a/tess-two/src/com/googlecode/tesseract/android/TessBaseAPI.java
+++ b/tess-two/src/com/googlecode/tesseract/android/TessBaseAPI.java
@@ -337,6 +337,17 @@ public boolean init(String datapath, String language, @OcrEngineMode int ocrEngi
                             languageCode + ".traineddata");
                     if (!datafile.exists())
                         throw new IllegalArgumentException("Data file not found at " + datafile);
+
+                    // Catch some common problematic initialization cases.
+                    if (languageCode.equals("ara") || (languageCode.equals("hin") &&
+                            ocrEngineMode == OEM_DEFAULT)) {
+                        boolean sampleCubeFileExists = new File(tessdata +
+                                File.separator + languageCode + ".cube.params").exists();
+                        if (!sampleCubeFileExists) {
+                            throw new IllegalArgumentException("Cube data files not found." +
+                                    " See https://github.com/rmtheis/tess-two/issues/239");
+                        }
+                    }
                 }
             }
         }