@Override
public Component tagToComponent(
String tagName, ComponentFactory componentFactory, DesignContext context) {
// Extract the package and class names.
// Otherwise, get the full class name using the prefix to package
// mapping. Example: "v-vertical-layout" ->
// "com.vaadin.ui.VerticalLayout"
String[] parts = tagName.split("-", 2);
if (parts.length < 2) {
throw new DesignException("The tagname '" + tagName + "' is invalid: missing prefix.");
}
String prefixName = parts[0];
String packageName = context.getPackage(prefixName);
if (packageName == null) {
throw new DesignException("Unknown tag: " + tagName);
}
String[] classNameParts = parts[1].split("-");
String className = "";
for (String classNamePart : classNameParts) {
// Split will ignore trailing and multiple dashes but that
// should be
// ok
// <v-button--> will be resolved to <v-button>
// <v--button> will be resolved to <v-button>
className += SharedUtil.capitalize(classNamePart);
}
String qualifiedClassName = packageName + "." + className;
Component component = componentFactory.createComponent(qualifiedClassName, context);
if (component == null) {
throw new DesignException(
"Got unexpected null component from "
+ componentFactory.getClass().getName()
+ " for class "
+ qualifiedClassName);
}
return component;
}
