diff options
Diffstat (limited to 'plugins/facet/org.eclipse.papyrus.emf.facet.custom.ui/src/org/eclipse/emf/facet/custom/ui/internal/query/LabelQuery.java')
| -rw-r--r-- | plugins/facet/org.eclipse.papyrus.emf.facet.custom.ui/src/org/eclipse/emf/facet/custom/ui/internal/query/LabelQuery.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/plugins/facet/org.eclipse.papyrus.emf.facet.custom.ui/src/org/eclipse/emf/facet/custom/ui/internal/query/LabelQuery.java b/plugins/facet/org.eclipse.papyrus.emf.facet.custom.ui/src/org/eclipse/emf/facet/custom/ui/internal/query/LabelQuery.java new file mode 100644 index 00000000000..e68597d4aee --- /dev/null +++ b/plugins/facet/org.eclipse.papyrus.emf.facet.custom.ui/src/org/eclipse/emf/facet/custom/ui/internal/query/LabelQuery.java @@ -0,0 +1,136 @@ +/**
+ * Copyright (c) 2011 Mia-Software.
+ *
+ * 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:
+ * Gregoire Dupe (Mia-Software) - Bug 361794 - [Restructuring] EMF Facet customization meta-model
+ * Gregoire Dupe (Mia-Software) - Bug 369987 - [Restructuring][Table] Switch to the new customization and facet framework
+ * Gregoire Dupe (Mia-Software) - Bug 373078 - API Cleaning
+ * Gregoire Dupe (Mia-Software) - Bug 375087 - [Table] ITableWidget.addColumn(List<ETypedElement>, List<FacetSet>)
+ * Nicolas Bros (Mia-Software) - Bug 379683 - customizable Tree content provider
+ */
+package org.eclipse.emf.facet.custom.ui.internal.query;
+
+import org.eclipse.emf.ecore.EAttribute;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.ETypedElement;
+import org.eclipse.emf.ecore.util.FeatureMap;
+import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
+import org.eclipse.emf.edit.provider.IItemLabelProvider;
+import org.eclipse.emf.edit.provider.ReflectiveItemProvider;
+import org.eclipse.emf.facet.efacet.core.IFacetManager;
+import org.eclipse.emf.facet.efacet.core.exception.DerivedTypedElementException;
+import org.eclipse.emf.facet.query.java.core.IJavaQuery2;
+import org.eclipse.emf.facet.query.java.core.IParameterValueList2;
+import org.eclipse.emf.facet.util.emf.core.ModelUtils;
+
+public class LabelQuery implements IJavaQuery2<EObject, String> {
+
+ private static final String NAME = "name"; //$NON-NLS-1$
+
+ public String evaluate(final EObject source,
+ final IParameterValueList2 parameterValues,
+ final IFacetManager facetManager)
+ throws DerivedTypedElementException {
+ ETypedElement sfParam = null;
+ if (parameterValues != null) {
+ sfParam = (ETypedElement) parameterValues
+ .getParameterValueByName("eStructuralFeature").getValue(); //$NON-NLS-1$
+ }
+ String result = null;
+ if (sfParam == null) {
+ final ComposedAdapterFactory adapterFactory = new ComposedAdapterFactory(
+ ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
+ final IItemLabelProvider itemLabelProvider = (IItemLabelProvider) adapterFactory
+ .adapt(source, IItemLabelProvider.class);
+ // We don't want to use a ReflectiveItemProvider because it provides
+ // a string prefixed with the eObject's meta-class name.
+ if (itemLabelProvider instanceof ReflectiveItemProvider) {
+ result = LabelQuery.getDefaultName(source);
+ } else if (itemLabelProvider == null) {
+ result = ModelUtils.getDefaultName(source);
+ } else {
+ result = itemLabelProvider.getText(source);
+ }
+ } else {
+ try {
+ if (sfParam instanceof EAttribute && sfParam.getUpperBound() == 1) {
+ final Object object = facetManager.getOrInvoke(source, sfParam, Object.class);
+ final String objectLabel = getObjectLabel(object, facetManager);
+ result = sfParam.getName() + " = " + objectLabel; //$NON-NLS-1$
+ } else {
+ result = sfParam.getName();
+ }
+ } catch (final Exception e) {
+ throw new DerivedTypedElementException(e);
+ }
+ }
+ return result;
+ }
+
+ private String getObjectLabel(final Object object,
+ final IFacetManager facetManager)
+ throws DerivedTypedElementException {
+ String result;
+ if (object instanceof EObject) {
+ final EObject eObject = (EObject) object;
+ result = evaluate(eObject, null, facetManager);
+ } else {
+ result = String.valueOf(object);
+ }
+ return result;
+ }
+
+ /**
+ * @return a default name based on a string feature of the given
+ * {@link EObject}
+ */
+ // from org.eclipse.emf.facet.infra.common.core.internal.utils.ModelUtils
+ public static String getDefaultName(final EObject eObject) {
+ String result = ""; //$NON-NLS-1$
+ // find a feature that can be used as a name
+ final EStructuralFeature feature = LabelQuery.getLabelFeature(eObject
+ .eClass());
+ if (feature != null) {
+ result = (String) eObject.eGet(feature);
+ }
+ return result;
+ }
+
+ /**
+ * This method searches for a structural feature that can be used as a name
+ *
+ * @param eClass
+ * in which class to search a structural feature that can be used as
+ * a name
+ * @return an EStructuralFeature
+ */
+ // Copied from org.eclipse.emf.edit.provider.ReflectiveItemProvider to org.eclipse.emf.facet.infra.common.core.internal.utils.ModelUtils
+ // Copied from org.eclipse.emf.facet.infra.common.core.internal.utils.ModelUtils
+ private static EStructuralFeature getLabelFeature(final EClass eClass) {
+ EAttribute result = null;
+ for (final EAttribute eAttribute : eClass.getEAllAttributes()) {
+ if (!eAttribute.isMany()
+ && eAttribute.getEType().getInstanceClass() != FeatureMap.Entry.class) {
+ if (LabelQuery.NAME.equalsIgnoreCase(eAttribute
+ .getName())) {
+ result = eAttribute;
+ break;
+ } else if (result == null) {
+ result = eAttribute;
+ } else if (eAttribute.getEAttributeType().getInstanceClass() == String.class
+ && result.getEAttributeType().getInstanceClass() != String.class) {
+ result = eAttribute;
+ }
+ }
+ }
+ return result;
+ }
+
+}
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