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/*******************************************************************************
* Copyright (c) 2007, 2008 Oracle. 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:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.eclipselink.ui.internal.caching;
import java.util.ListIterator;
import org.eclipse.core.resources.IProject;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.ui.IJavaElementSearchConstants;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.Entity;
import org.eclipse.jpt.core.context.PersistentType;
import org.eclipse.jpt.core.context.TypeMapping;
import org.eclipse.jpt.eclipselink.core.internal.context.caching.Caching;
import org.eclipse.jpt.eclipselink.ui.internal.EclipseLinkUiMessages;
import org.eclipse.jpt.eclipselink.ui.internal.JptEclipseLinkUiPlugin;
import org.eclipse.jpt.ui.internal.util.PaneEnabler;
import org.eclipse.jpt.ui.internal.widgets.AbstractPane;
import org.eclipse.jpt.ui.internal.widgets.AddRemoveListPane;
import org.eclipse.jpt.utility.internal.model.value.ListAspectAdapter;
import org.eclipse.jpt.utility.internal.model.value.SimplePropertyValueModel;
import org.eclipse.jpt.utility.internal.model.value.TransformationListValueModelAdapter;
import org.eclipse.jpt.utility.internal.model.value.TransformationPropertyValueModel;
import org.eclipse.jpt.utility.internal.model.value.swing.ObjectListSelectionModel;
import org.eclipse.jpt.utility.model.value.ListValueModel;
import org.eclipse.jpt.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.SelectionDialog;
import org.eclipse.ui.progress.IProgressService;
/**
* EntityListComposite
*/
public class EntityListComposite extends AbstractPane<Caching>
{
public EntityListComposite(AbstractPane<Caching> parentComposite, Composite parent) {
super(parentComposite, parent);
}
@Override
protected void initializeLayout(Composite container) {
container = this.buildTitledPane(
container,
EclipseLinkUiMessages.CachingEntityListComposite_groupTitle
);
WritablePropertyValueModel<EntityCacheProperties> entityHolder = this.buildEntityHolder();
// Entities add/remove list pane
new AddRemoveListPane<Caching>(
this,
container,
this.buildEntitiesAdapter(),
this.buildEntityCachingListHolder(),
entityHolder,
this.buildEntityLabelProvider(),
null // EclipseLinkHelpContextIds.CACHING_ENTITIES
);
// Entity Caching property pane
EntityCachingPropertyComposite pane = new EntityCachingPropertyComposite(
this,
entityHolder,
container
);
this.installPaneEnabler(entityHolder, pane);
}
private AddRemoveListPane.Adapter buildEntitiesAdapter() {
return new AddRemoveListPane.AbstractAdapter() {
public void addNewItem(ObjectListSelectionModel listSelectionModel) {
addEntities(listSelectionModel);
}
public void removeSelectedItems(ObjectListSelectionModel listSelectionModel) {
Caching caching = subject();
for (Object item : listSelectionModel.selectedValues()) {
EntityCacheProperties entityCaching = (EntityCacheProperties) item;
caching.removeEntity(entityCaching.getEntityName());
}
}
};
}
private void addEntities(ObjectListSelectionModel listSelectionModel) {
IType type = this.chooseEntity();
if (type != null) {
String entityName = this.getEntityName(type.getFullyQualifiedName());
if (entityName == null) {
entityName = type.getElementName();
}
if( ! this.subject().entityExists(entityName)) {
String entity = this.subject().addEntity(entityName);
listSelectionModel.setSelectedValue(entity);
}
}
}
private String getEntityName(String fullyQualifiedTypeName) {
PersistentType persistentType = subject().persistenceUnit().getPersistentType(fullyQualifiedTypeName);
if (persistentType != null && persistentType.getMappingKey() == MappingKeys.ENTITY_TYPE_MAPPING_KEY) {
TypeMapping mapping = persistentType.getMapping();
if (mapping instanceof Entity) {
return ((Entity)mapping).getName();
}
}
return null;
}
private IType chooseEntity() {
IPackageFragmentRoot root = packageFragmentRoot();
if (root == null) {
return null;
}
IJavaElement[] elements = new IJavaElement[] { root.getJavaProject() };
IJavaSearchScope scope = SearchEngine.createJavaSearchScope(elements);
IProgressService service = PlatformUI.getWorkbench().getProgressService();
SelectionDialog typeSelectionDialog;
try {
typeSelectionDialog = JavaUI.createTypeDialog(
shell(),
service,
scope,
IJavaElementSearchConstants.CONSIDER_CLASSES,
false,
""
);
}
catch (JavaModelException e) {
JptEclipseLinkUiPlugin.log(e);
return null;
}
typeSelectionDialog.setTitle(EclipseLinkUiMessages.CachingEntityListComposite_dialogTitle);
typeSelectionDialog.setMessage(EclipseLinkUiMessages.CachingEntityListComposite_dialogMessage);
if (typeSelectionDialog.open() == Window.OK) {
return (IType) typeSelectionDialog.getResult()[0];
}
return null;
}
private IPackageFragmentRoot packageFragmentRoot() {
IProject project = subject().getJpaProject().getProject();
IJavaProject root = JavaCore.create(project);
try {
return root.getAllPackageFragmentRoots()[0];
}
catch (JavaModelException e) {
JptEclipseLinkUiPlugin.log(e);
}
return null;
}
private ILabelProvider buildEntityLabelProvider() {
return new LabelProvider() {
@Override
public String getText(Object element) {
EntityCacheProperties entityCaching = (EntityCacheProperties) element;
return entityCaching.getEntityName();
}
};
}
private WritablePropertyValueModel<EntityCacheProperties> buildEntityHolder() {
return new SimplePropertyValueModel<EntityCacheProperties>();
}
private ListValueModel<EntityCacheProperties> buildEntityCachingListHolder() {
return new TransformationListValueModelAdapter<String, EntityCacheProperties>(buildEntitiesListHolder()) {
@Override
protected EntityCacheProperties transformItem(String item) {
return new EntityCacheProperties(subject(), item);
}
};
}
private ListValueModel<String> buildEntitiesListHolder() {
return new ListAspectAdapter<Caching, String>(
this.getSubjectHolder(), Caching.ENTITIES_LIST_PROPERTY) {
@Override
protected ListIterator<String> listIterator_() {
return this.subject.entities();
}
@Override
protected int size_() {
return this.subject.entitiesSize();
}
};
}
private void installPaneEnabler(WritablePropertyValueModel<EntityCacheProperties> entityHolder,
EntityCachingPropertyComposite pane) {
new PaneEnabler(
this.buildPaneEnablerHolder(entityHolder),
pane
);
}
private PropertyValueModel<Boolean> buildPaneEnablerHolder(WritablePropertyValueModel<EntityCacheProperties> entityHolder) {
return new TransformationPropertyValueModel<EntityCacheProperties, Boolean>(entityHolder) {
@Override
protected Boolean transform_(EntityCacheProperties value) {
return value.entityNameIsValid();
}
};
}
}
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