Update arborescence 2

Tess4J/test/net/sourceforge/tess4j/TestFolderExtraction.java

@@ -0,0 +1,84 @@
+/**
+ * Copyright @ 2008 Quan Nguyen
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package net.sourceforge.tess4j;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+
+import net.sourceforge.tess4j.util.LoadLibs;
+
+import net.sourceforge.tess4j.util.LoggHelper;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TestFolderExtraction {
+
+    private static final Logger logger = LoggerFactory.getLogger(new LoggHelper().toString());
+
+    @Test
+    public void testFolderExtraction() {
+
+        File tessDataFolder = null;
+        
+        try {
+
+            /**
+             * Loads the image from resources.
+             */
+            String filename = String.format("%s/%s", "/test-data", "eurotext.pdf");
+            URL defaultImage = getClass().getResource(filename);
+            File imageFile = new File(defaultImage.toURI());
+
+            /**
+             * Extracts <code>tessdata</code> folder into a temp folder.
+             */
+            logger.info("Loading the tessdata folder into a temporary folder.");
+            tessDataFolder = LoadLibs.extractTessResources("tessdata");
+            
+            /**
+             * Gets tesseract instance and sets data path.
+             */
+            ITesseract instance = new Tesseract();
+            
+            if (tessDataFolder != null) {
+                logger.info(tessDataFolder.getAbsolutePath());
+                instance.setDatapath(tessDataFolder.getParent());
+            }
+
+            /**
+             * Performs OCR on the image.
+             */
+            String result = instance.doOCR(imageFile);
+            logger.info(result);
+
+        } catch (TesseractException e) {
+            logger.error(e.getMessage());
+            logger.error(e.getMessage(), e);
+        } catch (URISyntaxException e) {
+            logger.error(e.getMessage(), e);
+        }
+        
+        // checks if tessdata folder exists
+        assertTrue(tessDataFolder != null && tessDataFolder.exists());
+    }
+
+}