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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view.datasource.handler;
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import org.eclipse.core.expressions.PropertyTester;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import eu.etaxonomy.cdm.model.metadata.CdmMetaDataPropertyName;
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import eu.etaxonomy.taxeditor.view.datasource.CdmMetaDataAwareDataSourceContainer;
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/**
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* @author n.hoffmann
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* @created Sep 23, 2010
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* @version 1.0
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*/
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public class DataSourceMenuPropertyTester extends PropertyTester {
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private static final String COMPATIBLE = "isCompatible";
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private static final String TEST = "test";
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private static final String HAS_DATA_MODEL = "hasDataModel";
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/** {@inheritDoc} */
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@Override
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public boolean test(Object receiver, String property, Object[] args,
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Object expectedValue) {
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Object[] selectedElements = ((IStructuredSelection) receiver).toArray();
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if (selectedElements.length == 0 && property.equals(TEST)) {
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// nothing selected so all tests should fail
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return true;
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}
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if (selectedElements.length == 0 && COMPATIBLE.equals(property)) {
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// nothing selected so all tests should fail
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return true;
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}
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if (COMPATIBLE.equals(property)) {
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return isCompatible(selectedElements);
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}
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if (HAS_DATA_MODEL.equals(property)) {
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return hasDataModel(selectedElements);
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}
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return false;
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}
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private boolean hasDataModel(Object[] selectedElements) {
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if (selectedElements.length == 0 ) {
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// nothing selected so all tests should fail
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return false;
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}
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for (Object object : selectedElements) {
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if (object instanceof CdmMetaDataAwareDataSourceContainer) {
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CdmMetaDataAwareDataSourceContainer container = (CdmMetaDataAwareDataSourceContainer) object;
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String schemaVersion = container.getMetaData(CdmMetaDataPropertyName.DB_SCHEMA_VERSION);
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return !schemaVersion.equals(CdmMetaDataAwareDataSourceContainer.DEFAULT_ENTRY);
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}
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}
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return false;
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}
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private boolean isCompatible(Object[] selectedElements) {
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if (selectedElements.length == 0 ) {
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// nothing selected so all tests should fail
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return false;
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}
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for (Object object : selectedElements) {
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if (object instanceof CdmMetaDataAwareDataSourceContainer) {
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CdmMetaDataAwareDataSourceContainer container = (CdmMetaDataAwareDataSourceContainer) object;
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return container.isDataSourceCompatible();
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}
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}
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return false;
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}
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}
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