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package org.eclipse.jst.jsf.facelet.core.internal.registry.taglib;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IWorkspaceRunnable;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jst.j2ee.model.IModelProvider;
import org.eclipse.jst.jsf.common.internal.componentcore.AbstractVirtualComponentQuery;
import org.eclipse.jst.jsf.common.internal.resource.WorkspaceMediator;
import org.eclipse.jst.jsf.common.internal.resource.IResourceLifecycleListener;
import org.eclipse.jst.jsf.common.internal.resource.ResourceSingletonObjectManager;
import org.eclipse.jst.jsf.facelet.core.internal.FaceletCorePlugin;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.ContextParamSpecifiedFaceletTaglibLocator.LibraryChangeHandler;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.ContextParamSpecifiedFaceletTaglibLocator.TaglibFileTracker;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.WebappConfiguration.WebappListener;
class TaglibFileManager extends
ResourceSingletonObjectManager<TaglibFileTracker, IFile>
{
private final LibraryChangeHandler _handler;
private final WebappConfiguration _webAppConfiguration;
private final IResourceChangeListener _newFileListener;
public TaglibFileManager(final IProject project,
final LibraryChangeHandler handler,
final IModelProvider webAppProvider,
final AbstractVirtualComponentQuery vcQuery,
final WorkspaceMediator wsMediator)
{
super(project.getWorkspace());
_handler = handler;
_webAppConfiguration = new WebappConfiguration(project, webAppProvider,
vcQuery);
// TODO: fold into LifecycleListener
_newFileListener = new IResourceChangeListener()
{
public void resourceChanged(final IResourceChangeEvent event)
{
// if the event is post change && has the same parent
// project
if (event.getType() == IResourceChangeEvent.POST_CHANGE
&& event.getDelta().findMember(project.getFullPath()) != null)
{
wsMediator.runInWorkspaceJob(new IWorkspaceRunnable()
{
public void run(final IProgressMonitor monitor)
throws CoreException
{
for (final IFile file : _webAppConfiguration
.getFiles())
{
final IResourceDelta delta = event.getDelta()
.findMember(file.getFullPath());
if (delta != null)
{
if (delta.getKind() == IResourceDelta.ADDED)
{
_handler.added(file);
}
}
}
}
}, "Context param update"); //$NON-NLS-1$
}
}
};
getWorkspace().addResourceChangeListener(_newFileListener);
}
public List<IFile> getFiles()
{
return _webAppConfiguration.getFiles();
}
public void initFiles()
{
_webAppConfiguration.start();
_webAppConfiguration.addListener(new WebappListener()
{
@Override
public void webappChanged(final WebappChangeEvent event)
{
for (final IFile file : event.getRemoved())
{
TaglibFileTracker tracker;
try
{
tracker = getInstance(file);
_handler.removed(tracker._uri, file);
} catch (final ManagedObjectException e)
{
FaceletCorePlugin.log(
"While removing for webapp change", e); //$NON-NLS-1$
}
}
for (final IFile file : event.getAdded())
{
_handler.added(file);
}
}
});
}
@Override
protected TaglibFileTracker createNewInstance(final IFile file)
{
return new TaglibFileTracker(file, this, _handler);
}
public void addListener(final IResourceLifecycleListener listener)
{
super.addLifecycleEventListener(listener);
}
public void removeListener(final IResourceLifecycleListener listener)
{
super.removeLifecycleEventListener(listener);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jst.jsf.common.internal.resource.ResourceSingletonObjectManager
* #dispose()
*/
@Override
public void dispose()
{
_webAppConfiguration.dispose();
getWorkspace().removeResourceChangeListener(_newFileListener);
super.dispose();
}
}
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