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/**
* <copyright>
*
* Copyright (c) 2005, 2006, 2007, 2008 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 2010/02/04 11:02:59 mtaal Exp $
*/
package org.eclipse.emf.teneo.annotations.parser;
import java.util.ArrayList;
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.Constants;
import org.eclipse.emf.teneo.PersistenceOptions;
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;
import org.eclipse.emf.teneo.extension.ExtensionPoint;
/**
* 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, ExtensionPoint {
/** 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:";
private String[] extraAnnotationsSources = new String[] {};
/** Parse an pamodel */
public void process(PAnnotatedModel paModel) {
for (PAnnotatedEPackage pap : paModel.getPaEPackages()) {
log.debug("Processing package " + pap.getModelEPackage().getName());
processAnnotatedModelElement(pap, pap.eClass().getEPackage());
// and now the eclasses
process(pap);
}
}
/** Process package */
protected void process(PAnnotatedEPackage pap) {
for (PAnnotatedEClass pac : pap.getPaEClasses()) {
processAnnotatedModelElement(pac, pac.getModelEClass().getEPackage());
process(pac);
}
for (PAnnotatedEDataType pac : pap.getPaEDataTypes()) {
processAnnotatedModelElement(pac, pac.getModelEDataType().getEPackage());
}
}
/** Process the efeatures */
protected void process(PAnnotatedEClass pac) {
log.debug("Processing eclass " + pac.getModelEClass().getName());
for (PAnnotatedEStructuralFeature paf : pac.getPaEStructuralFeatures()) {
processAnnotatedModelElement(paf, paf.getModelEStructuralFeature().eClass().getEPackage());
}
}
/** Process a type with its eannotations */
@SuppressWarnings("unchecked")
protected void processAnnotatedModelElement(PAnnotatedEModelElement pee, EPackage epack) {
log.debug("Processing " + pee.getModelElement().getName());
final ArrayList<NamedParserNode> parsedNodes = new ArrayList<NamedParserNode>();
for (EAnnotation annotation : pee.getModelElement().getEAnnotations()) {
parsedNodes.addAll(process(annotation, pee.getModelElement()));
}
// 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());
for (NamedParserNode namedParserNode : parsedNodes) {
final ComplexNode cn = (ComplexNode) namedParserNode;
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;
// first find exact type
for (EReference eref : pee.eClass().getEAllReferences()) {
if (eref.getEReferenceType() == eobj.eClass()) {
log.debug("Found EReference " + eref.getName() + " for " + eobj.eClass().getName());
if (eref.isMany()) {
((List<EObject>) pee.eGet(eref)).add(eobj);
} else {
pee.eSet(eref, eobj);
}
found = true;
break;
}
}
if (!found) {
for (EReference eref : pee.eClass().getEAllReferences()) {
if (eref.getEReferenceType().isInstance(eobj)) {
log.debug("Found EReference " + eref.getName() + " for " + eobj.eClass().getName());
if (eref.isMany()) {
((List<EObject>) 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");
// final ArrayList objects = new ArrayList();
// for (Iterator it = objects.iterator(); it.hasNext();) {
// EObject eobj = (EObject)it.next();
// log.debug("EClass " + eobj.eClass().getName());
// }
}
/** Processes EAnnotations */
private ArrayList<NamedParserNode> process(EAnnotation ea, ENamedElement ene) {
final ArrayList<NamedParserNode> result = new ArrayList<NamedParserNode>();
if (!isValidSource(ea.getSource())) {
return result;
}
log.debug("Processing annotations ");
for (Map.Entry<String, String> pAnnotationDetails : ea.getDetails().entrySet()) {
final String fName = pAnnotationDetails.getKey();
// todo externalize
if (fName.compareToIgnoreCase(Constants.ANNOTATION_KEY_APPINFO) == 0
|| fName.compareToIgnoreCase(Constants.ANNOTATION_KEY_VALUE) == 0) {
log.debug("Annotation content: \n " + pAnnotationDetails.getValue());
final String content = removeCommentLines(pAnnotationDetails.getValue());
result.addAll(annotationParser.parse(ene, content));
}
}
return result;
}
// removes the lines which start with a //
private String removeCommentLines(String content) {
if (content.indexOf("//") == -1) {
return content;
}
final String[] lines = content.split("\n");
final StringBuilder sb = new StringBuilder();
for (String line : lines) {
if (line.trim().startsWith("//")) {
continue;
}
if (sb.length() > 0) {
sb.append("\n");
}
sb.append(line);
}
return sb.toString();
}
/*
* (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;
}
if (extraAnnotationsSources.length > 0) {
for (String annotationSource : extraAnnotationsSources) {
if (source.equals(annotationSource)) {
return true;
}
}
}
if (source.equals(Constants.ANNOTATION_SOURCE_TENEO_JPA_AUDITING)) {
return false;
}
return source.startsWith(Constants.ANNOTATION_SOURCE_TENEO_JPA)
|| source.startsWith(Constants.ANNOTATION_SOURCE_TENEO_MAPPING);
}
/** Find the efeature */
public EStructuralFeature getEStructuralFeature(EClass eClass, String name) {
return ParserUtil.getEStructuralFeature(eClass, name);
}
public void setExtraAnnotationSources(PersistenceOptions po) {
if (po.getExtraAnnotationSources() != null
&& po.getExtraAnnotationSources().trim().length() > 0) {
extraAnnotationsSources = po.getExtraAnnotationSources().split(",");
for (int i = 0; i < extraAnnotationsSources.length; i++) {
extraAnnotationsSources[i] = extraAnnotationsSources[i].trim();
if (extraAnnotationsSources[i].startsWith(Constants.ANNOTATION_SOURCE_TENEO_JPA)
|| extraAnnotationsSources[i].startsWith(Constants.ANNOTATION_SOURCE_TENEO_MAPPING)) {
log.warn("Extra annotation source ("
+ extraAnnotationsSources[i]
+ ") starts with the default Teneo annotation source: "
+ Constants.ANNOTATION_SOURCE_TENEO_JPA
+ " or "
+ Constants.ANNOTATION_SOURCE_TENEO_MAPPING
+ ". Annotations which should sometimes be "
+ "ignored or disabled should not start with these values as they are always considered by Teneo");
}
}
}
}
}
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