/*******************************************************************************
* Copyright (c) 2012 Red Hat, Inc.
* 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
*******************************************************************************/
package org.eclipse.m2e.wtp.internal.facets;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jst.j2ee.project.facet.IJ2EEFacetConstants;
import org.eclipse.jst.j2ee.project.facet.IJ2EEModuleFacetInstallDataModelProperties;
import org.eclipse.jst.j2ee.web.project.facet.IWebFacetInstallDataModelProperties;
import org.eclipse.m2e.core.internal.IMavenConstants;
import org.eclipse.m2e.wtp.WTPProjectsUtil;
import org.eclipse.m2e.wtp.internal.Messages;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.datamodel.FacetDataModelProvider;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualFolder;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.frameworks.datamodel.IDataModelOperation;
import org.eclipse.wst.common.project.facet.core.events.IFacetedProjectEvent;
import org.eclipse.wst.common.project.facet.core.events.IFacetedProjectListener;
import org.eclipse.wst.common.project.facet.core.events.IProjectFacetActionEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* War Facet update Listener. Based off the org.eclipse.jst.j2ee.web.project.facet.WebFacetInstallDelegate
*
* @author Fred Bricon
*/
public class WarVersionChangeListener implements IFacetedProjectListener {
private static final Logger LOG = LoggerFactory.getLogger(WarVersionChangeListener.class);
/* (non-Javadoc)
* @see org.eclipse.wst.common.project.facet.core.events.IFacetedProjectListener#handleEvent(org.eclipse.wst.common.project.facet.core.events.IFacetedProjectEvent)
*/
@Override
public void handleEvent(IFacetedProjectEvent event) {
if (event.getType().equals(IFacetedProjectEvent.Type.POST_VERSION_CHANGE)) {
IProject project = ((IProjectFacetActionEvent) event).getProject().getProject();
//The action applies if the Project has Maven nature and web facet
try {
if(project.hasNature(IMavenConstants.NATURE_ID)){
if(((IProjectFacetActionEvent) event)
.getProjectFacet().getId().equals(IJ2EEFacetConstants.DYNAMIC_WEB)){
NullProgressMonitor monitor = new NullProgressMonitor();
Object cfg = ((IProjectFacetActionEvent) event).getActionConfig();
if(cfg == null)
return;
IDataModel model = (IDataModel) cfg;
final IVirtualComponent c = ComponentCore.createComponent(project, true);
if (c == null)
return;
try{
if (model != null) {
//The model could not provide us the property we require
if(model.isProperty(IWebFacetInstallDataModelProperties.CONTEXT_ROOT)){
final IWorkspace ws = ResourcesPlugin.getWorkspace();
final IPath pjpath = project.getFullPath();
final IPath contentdir = setContentPropertyIfNeeded(model, pjpath, project);
mkdirs(ws.getRoot().getFolder(contentdir), monitor);
IVirtualFolder contentRootFolder = c.getRootFolder();
WTPProjectsUtil.setDefaultDeploymentDescriptorFolder(contentRootFolder, contentdir, monitor);
String contextRoot = model.getStringProperty(IWebFacetInstallDataModelProperties.CONTEXT_ROOT);
setContextRootPropertyIfNeeded(c, contextRoot);
IDataModelOperation notificationOperation = ((IDataModelOperation) model.getProperty(FacetDataModelProvider.NOTIFICATION_OPERATION));
if (notificationOperation != null) {
notificationOperation.execute(monitor, null);
}
}
}
}catch (ExecutionException e) {
LOG.error(Messages.WarVersionChangeListener_Error_Notifying_WebApp_Version_Change, e);
}
}
}
}catch(CoreException e) {
LOG.error(Messages.VersionChangeListener_Unreadeable_Project_Nature, e);
}
}
}
private static void mkdirs(final IFolder folder, IProgressMonitor monitor) throws CoreException {
if (!folder.exists()) {
if (folder.getParent() instanceof IFolder) {
mkdirs((IFolder) folder.getParent(), monitor);
}
folder.create(true, true, null);
}
else
{
IContainer x = folder;
while( x instanceof IFolder && x.isDerived() )
{
x.setDerived( false, monitor);
x = x.getParent();
}
}
}
private void setContextRootPropertyIfNeeded(final IVirtualComponent c, String contextRoot) {
String existing = c.getMetaProperties().getProperty("context-root"); //$NON-NLS-1$
if (existing == null)
c.setMetaProperty("context-root", contextRoot); //$NON-NLS-1$
}
private IPath setContentPropertyIfNeeded(final IDataModel model, final IPath pjpath, IProject project) {
IVirtualComponent c = ComponentCore.createComponent(project, false);
if (c.exists()) {
if( !c.getRootFolder().getProjectRelativePath().isRoot() ){
return c.getRootFolder().getUnderlyingResource().getFullPath();
}
}
return pjpath.append(model.getStringProperty(IJ2EEModuleFacetInstallDataModelProperties.CONFIG_FOLDER));
}
}