Create class responsible for validating messages

libraries/src/main/java/com/baeldung/smooks/converter/OrderValidator.java

@@ -0,0 +1,27 @@
+package com.baeldung.smooks.converter;
+
+import org.milyn.Smooks;
+import org.milyn.payload.JavaResult;
+import org.milyn.payload.StringResult;
+import org.milyn.validation.ValidationResult;
+import org.xml.sax.SAXException;
+
+import javax.xml.transform.stream.StreamSource;
+import java.io.IOException;
+
+public class OrderValidator {
+
+    public ValidationResult validate(String path) throws IOException, SAXException {
+        Smooks smooks = new Smooks(OrderValidator.class.getResourceAsStream("/smooks/smooks-validation.xml"));
+
+        try {
+            StringResult xmlResult = new StringResult();
+            JavaResult javaResult = new JavaResult();
+            ValidationResult validationResult = new ValidationResult();
+            smooks.filterSource(new StreamSource(OrderValidator.class.getResourceAsStream(path)), xmlResult, javaResult, validationResult);
+            return validationResult;
+        } finally {
+            smooks.close();
+        }
+    }
+}