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/*******************************************************************************
* <copyright>
*
* Copyright (c) 2005, 2011 SAP AG.
* 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:
* Stefan Dimov - initial API, implementation and documentation
*
* </copyright>
*
*******************************************************************************/
package org.eclipse.jpt.jpadiagrameditor.ui.internal.util;
import java.util.Collection;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Set;
import org.eclipse.graphiti.features.context.impl.RemoveContext;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jpt.common.core.resource.java.Annotation;
import org.eclipse.jpt.jpa.core.JptJpaCorePlugin;
import org.eclipse.jpt.jpa.core.context.MappedByRelationship;
import org.eclipse.jpt.jpa.core.context.PersistentType;
import org.eclipse.jpt.jpa.core.context.java.JavaAttributeMapping;
import org.eclipse.jpt.jpa.core.context.java.JavaPersistentAttribute;
import org.eclipse.jpt.jpa.core.context.java.JavaPersistentType;
import org.eclipse.jpt.jpa.core.context.java.JavaRelationshipMapping;
import org.eclipse.jpt.jpa.core.context.persistence.PersistenceUnit;
import org.eclipse.jpt.jpa.core.internal.context.java.JavaNullTypeMapping;
import org.eclipse.jpt.jpa.core.resource.java.OwnableRelationshipMappingAnnotation;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.JPADiagramEditorPlugin;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.feature.RemoveAndSaveEntityFeature;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.IJPAEditorFeatureProvider;
import org.eclipse.swt.widgets.Display;
@SuppressWarnings("restriction")
public class EntityChangeListener extends Thread {
private final static int PAUSE_DURATION = 250;
private boolean goOn = true;
private JPASolver solver;
private IJPAEditorFeatureProvider featureProvider;
private Set<String> jptsToUpdate = new HashSet<String>();
private Hashtable<String, PersistenceUnit> attribsToUpdate = new Hashtable<String, PersistenceUnit>();
public final static String SEPARATOR = ";"; //$NON-NLS-1$
EntityChangeListener(JPASolver solver) {
this.solver = solver;
}
public void setFeatureProvider(IJPAEditorFeatureProvider featureProvider) {
this.featureProvider = featureProvider;
}
@Override
public void run() {
UpdateFromModel taskClass = new UpdateFromModel();
while (goOn) {
try {
Thread.sleep(PAUSE_DURATION);
} catch (InterruptedException e) {
JPADiagramEditorPlugin.logError("Thread sleep interruprted", e); //$NON-NLS-1$
}
Display.getDefault().asyncExec(taskClass);
}
solver = null;
featureProvider = null;
}
public void stopThread() {
goOn = false;
}
public void addJPTForUpdate(String jptName) {
synchronized (jptsToUpdate) {
jptsToUpdate.add(jptName);
}
}
public void addAttribForUpdate(PersistenceUnit pu, String entAtMappedBy) {
synchronized (attribsToUpdate) {
attribsToUpdate.put(entAtMappedBy, pu);
}
}
private class UpdateFromModel implements Runnable {
public void run() {
exec();
}
private void exec() {
try {
synchronized (jptsToUpdate) {
Iterator<String> itr = jptsToUpdate.iterator();
if (itr.hasNext()) {
String jptName = itr.next();
JavaPersistentType jpt = (JavaPersistentType)featureProvider.getBusinessObjectForKey(jptName);
try {
JpaArtifactFactory.instance().remakeRelations(featureProvider, null, jpt);
jptsToUpdate.remove(jptName);
} catch (RuntimeException e) {}
}
}
Collection<Object> vals = solver.getVisualizedObjects();
Iterator<Object> it = vals.iterator();
while (it.hasNext()) {
Object o = it.next();
if (o instanceof JavaPersistentType) {
JavaPersistentType jpt = (JavaPersistentType)o;
final ContainerShape entShape = (ContainerShape)featureProvider.getPictogramElementForBusinessObject(o);
if (entShape == null)
continue;
PersistenceUnit pu = JpaArtifactFactory.instance().getPersistenceUnit(jpt);
PersistentType pt = pu.getPersistentType(jpt.getName());
if ((pt == null) || !JpaArtifactFactory.instance().hasEntityAnnotation(jpt)) {
JpaArtifactFactory.instance().forceSaveEntityClass(jpt, featureProvider);
if(jpt.getMapping() == null || (jpt.getMapping() instanceof JavaNullTypeMapping)) {
if (!JptJpaCorePlugin.getDiscoverAnnotatedClasses(jpt.getJpaProject().getProject())) {
JPAEditorUtil.createUnregisterEntityFromXMLJob(jpt.getJpaProject(), jpt.getName());
}
}
RemoveContext ctx = new RemoveContext(entShape);
RemoveAndSaveEntityFeature ft = new RemoveAndSaveEntityFeature(featureProvider);
ft.remove(ctx);
break;
} else {
ICompilationUnit cu = featureProvider.getCompilationUnit(jpt);
String entName = JPAEditorUtil.returnSimpleName(JpaArtifactFactory.instance().getEntityName(jpt));
try {
final String newHeader = (cu.hasUnsavedChanges() ? "* " : "") + entName; //$NON-NLS-1$ //$NON-NLS-2$
Display.getDefault().asyncExec(new Runnable() {
public void run() {
GraphicsUpdater.updateHeader(entShape, newHeader);
}
});
} catch (JavaModelException e) {
JPADiagramEditorPlugin.logError("Cannot check compilation unit for unsaved changes", e); //$NON-NLS-1$
}
}
}
}
synchronized (attribsToUpdate) {
Set<String> atSet = attribsToUpdate.keySet();
Iterator<String> iter = atSet.iterator();
while (iter.hasNext()) {
String jptAtMB = iter.next();
String[] jptAndAttrib = jptAtMB.split(SEPARATOR);
PersistenceUnit pu = attribsToUpdate.get(jptAtMB);
String entityName = jptAndAttrib[0];
String attribName = jptAndAttrib[1];
String mappedBy = jptAndAttrib[2];
JavaPersistentType jpt = (JavaPersistentType)pu.getPersistentType(entityName);
if (jpt != null) {
JavaPersistentAttribute jpa = jpt.getAttributeNamed(attribName);
JpaArtifactFactory.instance().refreshEntityModel(null, jpt);
if (jpa != null) {
JavaAttributeMapping mapping = jpa.getMapping();
Annotation a = mapping.getMappingAnnotation();
if(a == null){
JpaArtifactFactory.instance().refreshEntityModel(featureProvider, jpt);
mapping = jpa.getMapping();
a = mapping.getMappingAnnotation();
}
if (a == null)
return;
if (OwnableRelationshipMappingAnnotation.class.isInstance(mapping.getMappingAnnotation())) {
JavaRelationshipMapping relationshipMapping = (JavaRelationshipMapping)mapping;
MappedByRelationship ownableRef = (MappedByRelationship)relationshipMapping.getRelationship();
if (!ownableRef.strategyIsMappedBy()) {
ownableRef.setStrategyToMappedBy();
}
ownableRef.getMappedByStrategy().setMappedByAttribute(mappedBy);
attribsToUpdate.remove(jptAtMB);
}
}
}
}
}
} catch(Exception e) {
//$NON-NLS-1$
}
}
}
}
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