/*******************************************************************************
* Copyright (c) 2007 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.seam.xml.components.model;
import org.jboss.tools.common.meta.XAttribute;
import org.jboss.tools.common.meta.XModelEntity;
import org.jboss.tools.common.model.XModelObject;
import org.jboss.tools.common.model.util.XModelObjectLoaderUtil;
import org.jboss.tools.common.xml.XMLUtilities;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class SeamComponentsLoaderUtil extends XModelObjectLoaderUtil implements SeamComponentConstants {
public SeamComponentsLoaderUtil() {}
protected boolean isSaveable(XModelEntity entity, String n, String v, String dv) {
if(v == null) return false;
if(v.length() == 0 || v.equals(dv)) {
XAttribute attr = entity.getAttribute(n);
return (attr != null && "always".equals(attr.getProperty("save"))); //$NON-NLS-1$ //$NON-NLS-2$
}
return super.isSaveable(entity, n, v, dv);
}
public boolean save(Element parent, XModelObject o) {
if(!needToSave(o)) return true;
return super.save(parent, o);
}
protected boolean needToSave(XModelObject o) {
String s = o.getModelEntity().getProperty("saveDefault"); //$NON-NLS-1$
if(!"false".equals(s)) return true; //$NON-NLS-1$
if(hasSetAttributes(o)) return true;
if(o.getChildren().length > 0) return true;
return false;
}
private boolean hasSetAttributes(XModelObject o) {
XAttribute[] as = o.getModelEntity().getAttributes();
for (int i = 0; i < as.length; i++) {
String xml = as[i].getXMLName();
// it would be more safe to check isSavable
if(xml == null || xml.length() == 0 || "NAME".equals(xml)) continue; //$NON-NLS-1$
String v = o.getAttributeValue(as[i].getName());
if(v != null && v.length() > 0) return true;
}
String finalComment = o.get("#final-comment"); //$NON-NLS-1$
if(finalComment != null && finalComment.length() > 0) return true;
return false;
}
public boolean saveChildren(Element element, XModelObject o) {
String entity = o.getModelEntity().getName();
String childrenLoader = o.getModelEntity().getProperty("childrenLoader"); //$NON-NLS-1$
if(ENT_SEAM_PROPERTY_MAP.equals(entity)
|| "map".equals(childrenLoader)) { //$NON-NLS-1$
return savePropertyMapChildren(element, o);
}
return super.saveChildren(element, o);
}
private boolean savePropertyMapChildren(Element element, XModelObject o) {
XModelObject[] cs = o.getChildren();
for (int i = 0; i < cs.length; i++) {
Element k = XMLUtilities.createElement(element, "key"); //$NON-NLS-1$
saveAttribute(k, "#text", cs[i].getAttributeValue("key")); //$NON-NLS-1$ //$NON-NLS-2$
Element v = XMLUtilities.createElement(element, "value"); //$NON-NLS-1$
saveAttribute(v, "#text", cs[i].getAttributeValue("value")); //$NON-NLS-1$ //$NON-NLS-2$
}
return true;
}
public void loadChildren(Element element, XModelObject o) {
// String entity = o.getModelEntity().getName();
super.loadChildren(element, o);
}
protected String getChildEntity(XModelEntity entity, Element e) {
String n = e.getNodeName();
if("property".equals(n)) { //$NON-NLS-1$
Element[] es = XMLUtilities.getChildren(e, "key"); //$NON-NLS-1$
if(es != null && es.length > 0) return ENT_SEAM_PROPERTY_MAP;
es = XMLUtilities.getChildren(e, "value"); //$NON-NLS-1$
if(es != null && es.length > 0) return "SeamPropertyList"; //$NON-NLS-1$
return "SeamProperty"; //$NON-NLS-1$
}
return super.getChildEntity(entity, e);
}
public void load(Element element, XModelObject o) {
String entity = o.getModelEntity().getName();
String childrenLoader = o.getModelEntity().getProperty("childrenLoader"); //$NON-NLS-1$
if(ENT_SEAM_PROPERTY_MAP.equals(entity)
|| "map".equals(childrenLoader)) { //$NON-NLS-1$
loadPropertyMap(element, o);
} else {
super.load(element, o);
}
}
void loadPropertyMap(Element element, XModelObject o) {
loadAttributes(element, o);
XModelObject last = null;
NodeList nl = element.getChildNodes();
for (int i = 0; i < nl.getLength(); i++) {
Node n = nl.item(i);
if(n.getNodeType() != Node.ELEMENT_NODE) continue;
if(n.getNodeName().equals("key")) { //$NON-NLS-1$
last = o.getModel().createModelObject("SeamMapEntry", null); //$NON-NLS-1$
last.setAttributeValue("key", getAttribute((Element)n, "#text")); //$NON-NLS-1$ //$NON-NLS-2$
o.addChild(last);
} else if(n.getNodeName().equals("value")) { //$NON-NLS-1$
if(last == null) {
last = o.getModel().createModelObject("SeamMapEntry", null); //$NON-NLS-1$
o.addChild(last);
}
last.setAttributeValue("value", getAttribute((Element)n, "#text")); //$NON-NLS-1$ //$NON-NLS-2$
last = null;
}
}
}
}