org.eclipse.ui.dialogs.IOverwriteQuery#queryOverwrite ( )源码实例Demo

/**
 * Configure the servlet settings
 * 
 * @param map
 * @param project
 * @param query
 * @param monitor
 * @throws CoreException
 */
public static void configureServlet( Map map, IProject project,
		IOverwriteQuery query, IProgressMonitor monitor )
		throws CoreException
{
	// cancel progress
	if ( monitor.isCanceled( ) )
		return;

	if ( map == null || project == null )
	{
		return;
	}

	// create WebArtifact
	WebArtifactEdit webEdit = WebArtifactEdit
			.getWebArtifactEditForWrite( project );
	if ( webEdit == null )
		return;

	try
	{
		WebApp webapp = (WebApp) webEdit.getDeploymentDescriptorRoot( );

		// handle servlet settings
		Iterator it = map.keySet( ).iterator( );
		while ( it.hasNext( ) )
		{
			String name = DataUtil.getString( it.next( ), false );
			ServletBean bean = (ServletBean) map.get( name );

			if ( bean == null )
				continue;

			// if contained this servlet
			Object obj = getServletByName( webapp.getServlets( ), name );
			if ( obj != null )
			{
				String ret = query
						.queryOverwrite( "Servlet '" + name + "'" ); //$NON-NLS-1$ //$NON-NLS-2$

				// check overwrite query result
				if ( IOverwriteQuery.NO.equalsIgnoreCase( ret ) )
				{
					continue;
				}
				if ( IOverwriteQuery.CANCEL.equalsIgnoreCase( ret ) )
				{
					monitor.setCanceled( true );
					return;
				}

				// remove old item
				webapp.getServlets( ).remove( obj );
			}

			String className = bean.getClassName( );
			String description = bean.getDescription( );

			// create Servlet Type object
			ServletType servletType = WebapplicationFactory.eINSTANCE
					.createServletType( );
			servletType.setClassName( className );

			// create Servlet object
			Servlet servlet = WebapplicationFactory.eINSTANCE
					.createServlet( );
			servlet.setServletName( name );
			if ( description != null )
				servlet.setDescription( description );

			servlet.setWebType( servletType );

			servlet.setWebApp( webapp );
		}

		webEdit.saveIfNecessary( monitor );
	}
	finally
	{
		webEdit.dispose( );
	}
}
 

/**
 * Configure the servlet-mapping settings
 * 
 * @param map
 * @param project
 * @param query
 * @param monitor
 * @throws CoreException
 */
public static void configureServletMapping( Map map, IProject project,
		IOverwriteQuery query, IProgressMonitor monitor )
		throws CoreException
{
	// cancel progress
	if ( monitor.isCanceled( ) )
		return;

	if ( map == null || project == null )
	{
		return;
	}

	// create WebArtifact
	WebArtifactEdit webEdit = WebArtifactEdit
			.getWebArtifactEditForWrite( project );
	if ( webEdit == null )
		return;

	try
	{
		WebApp webapp = (WebApp) webEdit.getDeploymentDescriptorRoot( );

		// handle servlet-mapping settings
		Iterator it = map.keySet( ).iterator( );
		while ( it.hasNext( ) )
		{
			String uri = DataUtil.getString( it.next( ), false );
			ServletMappingBean bean = (ServletMappingBean) map.get( uri );

			if ( bean == null )
				continue;

			// if contained this servlet-mapping
			Object obj = getServletMappingByUri( webapp
					.getServletMappings( ), uri );
			if ( obj != null )
			{
				String ret = query
						.queryOverwrite( "Servlet-mapping '" + uri + "'" ); //$NON-NLS-1$ //$NON-NLS-2$

				// check overwrite query result
				if ( IOverwriteQuery.NO.equalsIgnoreCase( ret ) )
				{
					continue;
				}
				if ( IOverwriteQuery.CANCEL.equalsIgnoreCase( ret ) )
				{
					monitor.setCanceled( true );
					return;
				}

				// remove old item
				webapp.getServletMappings( ).remove( obj );
			}

			// servlet name
			String name = bean.getName( );

			// create ServletMapping object
			ServletMapping mapping = WebapplicationFactory.eINSTANCE
					.createServletMapping( );

			// get servlet by name
			Servlet servlet = webapp.getServletNamed( name );
			if ( servlet != null )
			{
				mapping.setServlet( servlet );
				mapping.setUrlPattern( uri );
				mapping.setWebApp( webapp );
			}
		}

		webEdit.saveIfNecessary( monitor );
	}
	finally
	{
		webEdit.dispose( );
	}
}