org.atemsource.atem.impl.common.attribute.collection.ArrayAttributeImpl.java Source code

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Here is the source code for org.atemsource.atem.impl.common.attribute.collection.ArrayAttributeImpl.java

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/*******************************************************************************
 * Stefan Meyer, 2012 Licensed 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.atemsource.atem.impl.common.attribute.collection;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.atemsource.atem.api.attribute.CollectionAttribute;
import org.atemsource.atem.api.attribute.CollectionSortType;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

@Component
@Scope("prototype")
public class ArrayAttributeImpl<J> extends AbstractCollectionAttributeImpl<J, Object>
        implements CollectionAttribute<J, Object> {

    @Override
    public void clear(Object entity) {
        throw new UnsupportedOperationException("not yet implemented");
    }

    @Override
    public Class<Object> getAssociationType() {
        return (Class<Object>) Array.newInstance(getTargetType().getJavaType(), 0).getClass();
    }

    @Override
    public CollectionSortType getCollectionSortType() {
        return CollectionSortType.ORDERABLE;
    }

    @Override
    public Collection getElements(Object entity) {
        final Object array = getValue(entity);
        List arrayList = new ArrayList();
        if (array == null) {
            return null;
        } else {
            for (int index = 0; index < Array.getLength(array); index++) {
                arrayList.add(Array.get(array, index));
            }
            return arrayList;
        }
    }

    @Override
    public int getSize(Object entity) {
        return Array.getLength(getAccessor().getValue(entity));
    }

    @Override
    protected Class<Object> createEmptyCollection() {
        return (Class<Object>) Array.newInstance(getTargetType().getJavaType(), 0);
    }

}