/*
* 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.action;
import org.apache.uima.cas.CAS;
import org.apache.uima.cas.text.AnnotationFS;
import org.apache.uima.caseditor.editor.ICasDocument;
import org.apache.uima.caseditor.editor.ICasEditor;
import org.apache.uima.caseditor.editor.util.AnnotationSelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.actions.BaseSelectionListenerAction;
/**
* Merges two or more annotations.
*
* TODO: also merge features - if one is null or primitive has default value take the the other one -
* in conflict case do nothing
*/
public class MergeAnnotationAction extends BaseSelectionListenerAction {
private ICasEditor editor;
/**
* Initializes the current instance.
*
* @param document
*/
public MergeAnnotationAction(ICasEditor editor) {
super("MergeAnnotationAction");
this.editor = editor;
setEnabled(false);
}
@Override
protected boolean updateSelection(IStructuredSelection selection) {
AnnotationSelection annotation = new AnnotationSelection(selection);
return annotation.size() > 1;
}
/**
* Executes the merge action
*/
@Override
public void run() {
AnnotationSelection annotations = new AnnotationSelection(getStructuredSelection());
ICasDocument document = editor.getDocument();
CAS documentCAS = document.getCAS();
AnnotationFS mergedAnnotation = documentCAS.createAnnotation(annotations.getFirst().getType(),
annotations.getFirst().getBegin(), annotations.getLast().getEnd());
document.removeFeatureStructures(annotations.toList());
document.addFeatureStructure(mergedAnnotation);
}
}