/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.uima.caseditor.editor.fsview;
import org.apache.uima.cas.FeatureStructure;
import org.apache.uima.cas.impl.FeatureStructureImpl;
import org.apache.uima.cas.text.AnnotationFS;
import org.apache.uima.caseditor.editor.FeatureValue;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.swt.graphics.Image;
/**
* Provide the labels for the given {@link FeatureStructure}s.
*/
public final class FeatureStructureLabelProvider implements ILabelProvider {
public String getText(Object element) {
if (element instanceof FeatureValue) {
FeatureValue featureValue = (FeatureValue) element;
Object value = featureValue.getValue();
if (value == null) {
return featureValue.getFeature().getShortName() + ": null";
}
if (featureValue.getFeature().getRange().isPrimitive()) {
return featureValue.getFeature().getShortName() + " : " + value.toString();
}
return featureValue.getFeature().getShortName();
}
else if (element instanceof IAdaptable) {
FeatureStructure structure = null;
if (((IAdaptable) element).getAdapter(AnnotationFS.class) != null) {
structure = (AnnotationFS) ((IAdaptable) element)
.getAdapter(AnnotationFS.class);
}
if (structure == null) {
structure = (FeatureStructure) ((IAdaptable) element).getAdapter(FeatureStructure.class);
}
return structure.getType().getShortName() + " (id=" +
((FeatureStructureImpl) structure).getAddress() + ")";
}
else {
assert false : "Unexpected element!";
return element.toString();
}
}
public Image getImage(Object element) {
return null;
}
public boolean isLabelProperty(Object element, String property) {
return false;
}
public void addListener(ILabelProviderListener listener) {
}
public void removeListener(ILabelProviderListener listener) {
}
public void dispose() {
}
}