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/*******************************************************************************
* Copyright (c) 2011, 2013 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.jaxb.ui.internal.properties;
import org.eclipse.core.resources.IProject;
import org.eclipse.jpt.common.core.internal.utility.PlatformTools;
import org.eclipse.jpt.common.utility.internal.model.value.AspectPropertyValueModelAdapter;
import org.eclipse.jpt.common.utility.model.event.CollectionAddEvent;
import org.eclipse.jpt.common.utility.model.listener.CollectionChangeAdapter;
import org.eclipse.jpt.common.utility.model.listener.CollectionChangeListener;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.jaxb.core.JaxbProject;
import org.eclipse.jpt.jaxb.core.JaxbProjectManager;
import org.eclipse.jpt.jaxb.core.JaxbWorkspace;
import org.eclipse.jpt.jaxb.ui.JaxbWorkbench;
import org.eclipse.ui.PlatformUI;
/**
* Treat the JAXB project as an "aspect" of the Eclipse project (IProject);
* but the JAXB project is stored in the JAXB model, not the Eclipse project
* itself....
* We also need to listen for the JAXB project to be rebuilt if the user
* changes the Eclipse project's JAXB platform (which is stored in the
* Eclipse project's preferences).
*/
class JaxbProjectModel
extends AspectPropertyValueModelAdapter<IProject, JaxbProject> {
/**
* The JAXB project may also change via another page (notably, the project facets page).
* In that case, the preference change occurs before we actually have another project,
* so we must listen to the projects manager
*/
private final JaxbProjectManager jaxbProjectManager;
private final CollectionChangeListener projectManagerListener;
JaxbProjectModel(PropertyValueModel<IProject> projectModel) {
super(projectModel);
this.jaxbProjectManager = this.getJaxbProjectManager();
this.projectManagerListener = buildProjectManagerListener();
}
private CollectionChangeListener buildProjectManagerListener() {
return new CollectionChangeAdapter() {
// we are only looking for the project rebuild *add* event here so we can
// determine if the platform has changed.
// the other events are unimportant in this case
@Override
public void itemsAdded(CollectionAddEvent event) {
platformChanged();
}
};
}
void platformChanged() {
this.aspectChanged();
}
@Override
protected void engageSubject_() {
if (this.jaxbProjectManager != null) {
this.jaxbProjectManager.addCollectionChangeListener(JaxbProjectManager.JAXB_PROJECTS_COLLECTION, this.projectManagerListener);
}
}
@Override
protected void disengageSubject_() {
if (this.jaxbProjectManager != null) {
this.jaxbProjectManager.removeCollectionChangeListener(JaxbProjectManager.JAXB_PROJECTS_COLLECTION, this.projectManagerListener);
}
}
@Override
protected JaxbProject buildValue_() {
return (this.jaxbProjectManager == null) ? null : this.jaxbProjectManager.getJaxbProject(this.subject);
}
private JaxbProjectManager getJaxbProjectManager() {
JaxbWorkspace jaxbWorkspace = this.getJaxbWorkspace();
return (jaxbWorkspace == null) ? null : jaxbWorkspace.getJaxbProjectManager();
}
private JaxbWorkspace getJaxbWorkspace() {
JaxbWorkbench jaxbWorkbench = this.getJaxbWorkbench();
return (jaxbWorkbench == null) ? null : jaxbWorkbench.getJaxbWorkspace();
}
private JaxbWorkbench getJaxbWorkbench() {
return PlatformTools.getAdapter(PlatformUI.getWorkbench(), JaxbWorkbench.class);
}
}
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