Java tutorial
/******************************************************************************* * Copyright (c) 2010-2014 SAP AG and others. * 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: * SAP AG - initial API and implementation *******************************************************************************/ package org.eclipse.skalli.model.ext.maven.internal; import org.apache.commons.lang.StringUtils; import org.eclipse.skalli.model.Project; import org.eclipse.skalli.model.ext.maven.MavenProjectExt; import org.eclipse.skalli.services.extension.DataMigrationBase; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class DataMigration1 extends DataMigrationBase { public DataMigration1() { super(Project.class, 1); } private void remove(NodeList elements) { for (int i = 0; i < elements.getLength(); i++) { Node item = elements.item(i); item.getParentNode().removeChild(item); } } private void removeGAVs(NodeList elements) { for (int i = 0; i < elements.getLength(); i++) { Element node = (Element) elements.item(i); remove(node.getElementsByTagName("artifactID")); //$NON-NLS-1$ remove(node.getElementsByTagName("groupID")); //$NON-NLS-1$ remove(node.getElementsByTagName("version")); //$NON-NLS-1$ remove(node.getElementsByTagName("id")); //$NON-NLS-1$ } } @Override public void migrate(Document doc) { removeGAVs(doc.getElementsByTagName(MavenProjectExt.class.getName())); } // before the "grand" refactoring, Group was in package org.eclipse.skalli.common! @SuppressWarnings("nls") @Override public boolean handlesType(String entityClassName) { return super.handlesType(entityClassName) || StringUtils.equals(entityClassName, "org.eclipse.skalli.model.core.Project"); } }