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/**
* <copyright>
*
* Copyright (c) 2005, 2006, 2007 Springsite BV (The Netherlands) and others
* All rights reserved. This program and the accompanying materials
* are 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:
* Martin Taal
* </copyright>
*
* $Id: EAnnotationParserImporter.java,v 1.8 2007/02/01 12:35:02 mtaal Exp $
*/
package org.eclipse.emf.teneo.annotations.parser;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.ENamedElement;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEClass;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEDataType;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEModelElement;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEPackage;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEStructuralFeature;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedModel;
import org.eclipse.emf.teneo.annotations.pannotation.PannotationPackage;
/**
* Walks over the pamodel and the paepackages and translates eannotations to
* pannotation types and sets the corresponding values in the pamodel.
*
* @author <a href="mailto:mtaal at elver.org">Martin Taal</a>
*/
public class EAnnotationParserImporter implements EClassResolver {
/** Log it */
private final static Log log = LogFactory.getLog(EAnnotationParserImporter.class);
/** annotation parser */
private AnnotationParser annotationParser = new AnnotationParser();
/** The prefix to distinguish jpa annotations from hb or jpox annotations */
private static final String JPA_PREFIX = "jpa:";
/** Parse an pamodel */
public void process(PAnnotatedModel paModel) {
for (Iterator it = paModel.getPaEPackages().iterator(); it.hasNext();) {
final PAnnotatedEPackage pap = (PAnnotatedEPackage)it.next();
log.debug("Processing package " + pap.getAnnotatedEPackage().getName());
processAnnotatedModelElement(pap, pap.eClass().getEPackage());
// and now the eclasses
process(pap);
}
}
/** Process package */
protected void process(PAnnotatedEPackage pap) {
for (Iterator it = pap.getPaEClasses().iterator(); it.hasNext();) {
final PAnnotatedEClass pac = (PAnnotatedEClass)it.next();
processAnnotatedModelElement(pac, pac.getAnnotatedEClass().getEPackage());
process(pac);
}
for (Iterator it = pap.getPaEDataTypes().iterator(); it.hasNext();) {
final PAnnotatedEDataType pac = (PAnnotatedEDataType)it.next();
processAnnotatedModelElement(pac, pac.getAnnotatedEDataType().getEPackage());
}
}
/** Process the efeatures */
protected void process(PAnnotatedEClass pac) {
log.debug("Processing eclass " + pac.getAnnotatedEClass().getName());
for (Iterator it = pac.getPaEStructuralFeatures().iterator(); it.hasNext();) {
final PAnnotatedEStructuralFeature paf = (PAnnotatedEStructuralFeature)it.next();
processAnnotatedModelElement(paf, paf.getAnnotatedEStructuralFeature().eClass().getEPackage());
}
}
/** Process a type with its eannotations */
protected void processAnnotatedModelElement(PAnnotatedEModelElement pee, EPackage epack) {
log.debug("Processing " + pee.getAnnotatedElement().getName());
final ArrayList parsedNodes = new ArrayList();
for (Iterator it = pee.getAnnotatedElement().getEAnnotations().iterator(); it.hasNext();) {
parsedNodes.addAll(process((EAnnotation)it.next(), pee.getAnnotatedElement()));
}
// now also do the annotations on the edatatype (if any)
/*
if (pee.getAnnotatedElement() instanceof EAttribute) {
final EAttribute eattr = (EAttribute)pee.getAnnotatedElement();
final EDataType edt = (EDataType)eattr.getEType();
for (Iterator it = edt.getEAnnotations().iterator(); it.hasNext();) {
parsedNodes.addAll(process((EAnnotation)it.next(), pee.getAnnotatedElement()));
}
}
*/
// now the parsed nodes should be translated into features of the enamedelement
// this is done multiplelevel
log.debug("Number of parsed typename annotations " + parsedNodes.size());
final ArrayList objects = new ArrayList();
for (Iterator it = parsedNodes.iterator(); it.hasNext();) {
final ComplexNode cn = (ComplexNode)it.next();
if (cn.isList()) {
// find the efeature
final EStructuralFeature ef = getEStructuralFeature(pee.eClass(), cn.getName());
pee.eSet(ef, cn.convert(this));
} else {
EObject eobj = (EObject)cn.convert(this);
boolean found = false;
for (Iterator eit = pee.eClass().getEAllReferences().iterator(); eit.hasNext();) {
final EReference eref = (EReference)eit.next();
if (eref.getEReferenceType().isInstance(eobj)) {
log.debug("Found EReference " + eref.getName() + " for " + eobj.eClass().getName());
if (eref.isMany()) {
((List)pee.eGet(eref)).add(eobj);
} else {
pee.eSet(eref, eobj);
}
found = true;
break;
}
}
if (!found) {
throw new AnnotationParserException("The eclass: " + pee.eClass().getName() +
" does not have an efeature for " + eobj.eClass().getName());
}
}
}
// now for each eobject find which eref stores it!
log.debug("Find efeature for each created eobject");
for (Iterator it = objects.iterator(); it.hasNext();) {
EObject eobj = (EObject)it.next();
log.debug("EClass " + eobj.eClass().getName());
}
}
/** Processes EAnnotations */
private ArrayList process(EAnnotation ea, ENamedElement ene) {
final ArrayList result = new ArrayList();
if (!isValidSource(ea.getSource())) {
return result;
}
log.debug("Processing annotations ");
for (Iterator i = ea.getDetails().entrySet().iterator(); i.hasNext();) {
final Map.Entry pAnnotationDetails = (Map.Entry) i.next();
String fName = (String) pAnnotationDetails.getKey();
// todo externalize
if (fName.compareToIgnoreCase("appinfo") == 0 || fName.compareToIgnoreCase("value") == 0) {
log.debug("Annotation content: \n " + (String)pAnnotationDetails.getValue());
result.addAll(annotationParser.parse(ene, (String)pAnnotationDetails.getValue()));
}
}
return result;
}
/* (non-Javadoc)
* @see org.eclipse.emf.teneo.annotations.parser.EClassResolver#getEClass(java.lang.String)
*/
public EClass getEClass(String name) {
if (name.startsWith(JPA_PREFIX)) {
return getEClass(name.substring(JPA_PREFIX.length()));
}
return (EClass)PannotationPackage.eINSTANCE.getEClassifier(name);
}
/** Is a valid source */
protected boolean isValidSource(String source) {
if (source == null) return false;
// todo externalize
return source.startsWith("teneo.jpa") ||
source.startsWith("teneo.mapping");
}
/** Find the efeature */
public EStructuralFeature getEStructuralFeature(EClass eClass, String name) {
return ParserUtil.getEStructuralFeature(eClass, name);
}
}
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