Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

xml/src/main/java/com/baeldung/xmlhtml/helpers/XMLRunner.java

@@ -0,0 +1,12 @@
+package com.baeldung.xmlhtml.helpers;
+
+
+import com.baeldung.xmlhtml.helpers.jaxb.JAXBHelper;
+import com.baeldung.xmlhtml.stax.StaxTransformer;
+
+public class XMLRunner {
+
+    public static void doWork() {
+        JAXBHelper.example();
+    }
+}

xml/src/main/java/com/baeldung/xmlhtml/helpers/jaxb/JAXBHelper.java

@@ -0,0 +1,77 @@
+package com.baeldung.xmlhtml.helpers.jaxb;
+
+import com.baeldung.xmlhtml.pojo.jaxb.html.ExampleHTML;
+import com.baeldung.xmlhtml.pojo.jaxb.html.elements.Body;
+import com.baeldung.xmlhtml.pojo.jaxb.html.elements.CustomElement;
+import com.baeldung.xmlhtml.pojo.jaxb.html.elements.Meta;
+import com.baeldung.xmlhtml.pojo.jaxb.html.elements.NestedElement;
+import com.baeldung.xmlhtml.pojo.jaxb.xml.XMLExample;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+
+import java.io.File;
+
+import static com.baeldung.xmlhtml.Constants.*;
+
+public class JAXBHelper {
+
+    private static void print(String xmlContent) {
+        System.out.println(xmlContent);
+    }
+
+    private static Unmarshaller getContextUnmarshaller(Class clazz) {
+        Unmarshaller unmarshaller = null;
+        try {
+            JAXBContext context = JAXBContext.newInstance(clazz);
+            unmarshaller = context.createUnmarshaller();
+        } catch (Exception ex) {
+            System.out.println(EXCEPTION_ENCOUNTERED + ex);
+        }
+        return unmarshaller;
+    }
+
+    private static Marshaller getContextMarshaller(Class clazz) {
+        Marshaller marshaller = null;
+        try {
+            JAXBContext context = JAXBContext.newInstance(clazz);
+            marshaller = context.createMarshaller();
+            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+            marshaller.setProperty("jaxb.fragment", Boolean.TRUE);
+        } catch (Exception ex) {
+            System.out.println(EXCEPTION_ENCOUNTERED + ex);
+        }
+        return marshaller;
+    }
+
+    public static void example() {
+        try {
+            XMLExample xml = (XMLExample) JAXBHelper.getContextUnmarshaller(XMLExample.class).unmarshal(new File(XML_FILE_IN));
+            JAXBHelper.print(xml.toString());
+            ExampleHTML html = new ExampleHTML();
+
+            Body body = new Body();
+            CustomElement customElement = new CustomElement();
+            NestedElement nested = new NestedElement();
+            CustomElement child = new CustomElement();
+
+            customElement.setValue("descendantOne: " + xml.getAncestor().getDescendantOne().getValue());
+            child.setValue("descendantThree: " + xml.getAncestor().getDescendantTwo().getDescendantThree().getValue());
+            nested.setCustomElement(child);
+
+            body.setCustomElement(customElement);
+            body.setNestedElement(nested);
+
+            Meta meta = new Meta();
+            meta.setTitle("example");
+            html.getHead().add(meta);
+            html.setBody(body);
+
+            JAXBHelper.getContextMarshaller(ExampleHTML.class).marshal(html, new File(JAXB_FILE_OUT));
+
+        } catch (Exception ex) {
+            System.out.println(EXCEPTION_ENCOUNTERED + ex);
+        }
+    }
+}