feat(print-properties): Converting string literals to constants

Author: DhruvSharma-845

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/internal/form/FormConstants.java

@@ -148,4 +148,6 @@ private FormConstants() {
 
     /** Form definition type indicating submission view */
     public static final String FORM_DEFINITION_SUBMISSION = "submission";
+
+    public static final String PRINT_CHANNEL_MARKER = "print";
 }

bundles/af-core/src/main/java/com/adobe/cq/forms/core/components/internal/models/v1/form/FragmentImpl.java

@@ -58,6 +58,7 @@
 public class FragmentImpl extends PanelImpl implements Fragment {
 
     public static final String CUSTOM_FRAGMENT_PROPERTY_WRAPPER = "fd:fragment";
+    private static final String PRINT_CHANNEL_PATH = "/" + JcrConstants.JCR_CONTENT + "/" + "print";
 
     @OSGiService
     private SlingModelFilter slingModelFilter;
@@ -91,8 +92,8 @@ private String getFragmentPathBasedOnChannel(String fragmentPath) {
         String fragmentPathOfChannel = fragmentPath;
         while (formContainerResource != null) {
             String resourceType = formContainerResource.getValueMap().get("sling:resourceType", String.class);
-            if (resourceType != null && resourceType.contains("print")) {
-                fragmentPathOfChannel = fragmentPath + "/" + JcrConstants.JCR_CONTENT + "/" + "print";
+            if (resourceType != null && resourceType.contains(FormConstants.PRINT_CHANNEL_MARKER)) {
+                fragmentPathOfChannel = fragmentPath + PRINT_CHANNEL_PATH;
                 break;
             }
             formContainerResource = formContainerResource.getParent();