STDevDos
diff --git a/‎filemanager/src/main/java/read/ReadFileToByteArray.java‎
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diff --git a/‎filemanager/src/main/java/read/ResourceFilesUtils.java‎
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diff --git a/‎filemanager/src/main/resources/img/test.png‎
67.3 KB b/‎filemanager/src/main/resources/img/test.png‎
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diff --git a/‎filemanager/src/test/java/read/ReadFileToByteArrayTest.java‎
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diff --git a/‎filemanager/src/test/java/read/ResourceFilesUtilsTest.java‎
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diff --git a/‎filemanager/src/test/resources/img/test.png‎
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@@ -0,0 +1,61 @@
+package read;
+
+import org.apache.commons.codec.binary.Base64;
+import org.apache.commons.io.FileUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Objects;
+
+/**
+ * If we use Spring: https://www.baeldung.com/spring-classpath-file-access
+ */
+public class ResourceFilesUtils {
+
+    private ClassLoader classLoader;
+
+    public ResourceFilesUtils() {
+        classLoader = getClass().getClassLoader();
+    }
+
+    public String convertResourceToByteArray() {
+        InputStream inputStream = classLoader.getResourceAsStream("img/test.png");
+        try {
+            return Objects.isNull(inputStream) ? "RESOURCE NOT FOUND" : new String(inputStream.readAllBytes());
+        } catch (IOException e) {
+            return e.getMessage();
+        }
+    }
+
+    /**
+     * Need check with \Users\ONE_NAME\ because Nombre%20Apellido
+     *
+     * @return
+     */
+    public String convertResourceFileToBase64() {
+        File file = new File(classLoader.getResource("img/test.png").getFile());
+        System.out.println(file.getAbsolutePath());
+        System.out.println(file.getAbsoluteFile());
+        System.out.println(file.getPath());
+        try {
+            return Objects.isNull(file) ? "RESOURCE NOT FOUND" : new String(Base64.encodeBase64(FileUtils.readFileToByteArray(file)));
+        } catch (IOException e) {
+            return e.getMessage();
+        }
+    }
+
+    public String convertResourceInputStreamToBase64() {
+        InputStream inputStream = classLoader.getResourceAsStream("img/test.png");
+        try {
+            if (Objects.isNull(inputStream)) {
+                return "RESOURCE NOT FOUND";
+            } else {
+                return new String(Base64.encodeBase64(inputStream.readAllBytes()));
+            }
+        } catch (IOException e) {
+            return e.getMessage();
+        }
+    }
+
+}
@@ -0,0 +1,39 @@
+package read;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.Objects;
+
+class ResourceFilesUtilsTest {
+
+    private ResourceFilesUtils resourceFilesUtils;
+
+    @BeforeEach
+    void setUp() {
+        resourceFilesUtils = new ResourceFilesUtils();
+    }
+
+    @Test
+    void test_convertResourceToByteArray() {
+        String result = resourceFilesUtils.convertResourceToByteArray();
+        System.out.println(result);
+        Assertions.assertTrue(Objects.nonNull(result));
+    }
+
+    @Test
+    void test_convertResourceToBase64() {
+        String result = resourceFilesUtils.convertResourceFileToBase64();
+        System.out.println(result);
+        Assertions.assertTrue(Objects.nonNull(result));
+    }
+
+    @Test
+    void test_convertResourceInputStreamToBase64() {
+        String result = resourceFilesUtils.convertResourceInputStreamToBase64();
+        System.out.println(result);
+        Assertions.assertTrue(Objects.nonNull(result));
+    }
+
+}