ApplicationModelLoader.java

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package com.eas.client.scripts;

import com.eas.client.Application;
import com.eas.client.cache.ServerDataStorage;
import com.eas.client.model.application.ApplicationDbEntity;
import com.eas.client.model.application.ApplicationDbModel;
import com.eas.client.model.application.ApplicationModel;
import com.eas.client.model.application.ApplicationPlatypusEntity;
import com.eas.client.model.application.ApplicationPlatypusModel;
import com.eas.client.model.store.XmlDom2ApplicationModel;
import com.eas.client.queries.LocalQueriesProxy;
import com.eas.client.queries.RemoteQueriesProxy;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

/**
 *
 * @author mg
 */
public class ApplicationModelLoader {

    public static ApplicationModel<?, ?> load(Document aDoc, String aModuleName, Application<?> aApp) {
        Element modelElement = aModuleName != null ? findModelElementByBundleName(aDoc.getDocumentElement(), aModuleName) : aDoc.getDocumentElement();
        if (aApp.getQueries() instanceof LocalQueriesProxy) {
            LocalQueriesProxy localQueries = (LocalQueriesProxy) aApp.getQueries();
            ApplicationDbModel model = new ApplicationDbModel(localQueries.getCore(), localQueries);
            XmlDom2ApplicationModel<ApplicationDbEntity, ApplicationDbModel> parser = new XmlDom2ApplicationModel<>(modelElement);
            parser.visit(model);
            return model;
        } else {
            RemoteQueriesProxy remoteQueries = (RemoteQueriesProxy) aApp.getQueries();
            assert aApp instanceof ServerDataStorage;
            ApplicationPlatypusModel model = new ApplicationPlatypusModel((ServerDataStorage) aApp, remoteQueries);
            XmlDom2ApplicationModel<ApplicationPlatypusEntity, ApplicationPlatypusModel> parser = new XmlDom2ApplicationModel<>(modelElement);
            parser.visit(model);
            return model;
        }
    }

    private static Element findModelElementByBundleName(Element aElement, String aBundleName) {
        if (aElement.getTagName().equals("datamodel")) {
            return aElement;// the high level code had to do everything in the right way
        } else {
            Node child = aElement.getFirstChild();
            while (child != null) {
                if (child instanceof Element) {
                    Element el = (Element) child;
                    if (el.hasAttribute("bundle-name")) {
                        String bundleName = el.getAttribute("bundle-name");
                        if (bundleName.equals(aBundleName)) {
                            return el;
                        }
                    }
                }
                child = child.getNextSibling();
            }
        }
        return null;
    }
}