/* | |
* 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; | |
import java.util.ArrayList; | |
import java.util.Collections; | |
import java.util.List; | |
import org.apache.uima.cas.FeatureStructure; | |
import org.eclipse.core.runtime.IAdaptable; | |
import org.eclipse.core.runtime.Platform; | |
import org.eclipse.jface.viewers.IStructuredSelection; | |
import org.eclipse.jface.viewers.StructuredSelection; | |
/** | |
* The Class FeatureStructureSelection. | |
*/ | |
public class FeatureStructureSelection { | |
/** The m feature structures. */ | |
private List<FeatureStructure> mFeatureStructures; | |
/** | |
* Initializes a the current instance with all FeatureStructure object that are contained in the | |
* {@link StructuredSelection}. | |
* | |
* @param selection the selection | |
*/ | |
public FeatureStructureSelection(IStructuredSelection selection) { | |
mFeatureStructures = new ArrayList<FeatureStructure>(selection.size()); | |
for (Object item : selection.toList()) { | |
FeatureStructure annotation = (FeatureStructure) Platform.getAdapterManager().getAdapter( | |
item, FeatureStructure.class); | |
// TODO: fix it | |
if (annotation == null && item instanceof IAdaptable) { | |
annotation = (FeatureStructure) ((IAdaptable) item).getAdapter(FeatureStructure.class); | |
} | |
if (annotation != null) { | |
mFeatureStructures.add(annotation); | |
} | |
} | |
mFeatureStructures = Collections.unmodifiableList(mFeatureStructures); | |
} | |
/** | |
* Retrieves the size of the collection. | |
* | |
* @return the size | |
*/ | |
public int size() { | |
return mFeatureStructures.size(); | |
} | |
/** | |
* Indicates that the selection is empty. | |
* | |
* @return true if empty false otherwise | |
*/ | |
public boolean isEmpty() { | |
return size() == 0; | |
} | |
/** | |
* Retrieves a list of {@link FeatureStructure} objects. | |
* | |
* @return all selected {@link FeatureStructure} objects | |
*/ | |
public List<FeatureStructure> toList() { | |
return mFeatureStructures; | |
} | |
/** | |
* Retrieves a human readable string. | |
* @return human readable string | |
*/ | |
@Override | |
public String toString() { | |
return mFeatureStructures.toString(); | |
} | |
} |