edu.pitt.dbmi.ccd.anno.annotation.data.AnnotationDataResourceAssembler.java Source code

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Here is the source code for edu.pitt.dbmi.ccd.anno.annotation.data.AnnotationDataResourceAssembler.java

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/*
 * Copyright (C) 2015 University of Pittsburgh.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301  USA
 */
package edu.pitt.dbmi.ccd.anno.annotation.data;

import edu.pitt.dbmi.ccd.anno.annotation.AnnotationController;
import edu.pitt.dbmi.ccd.anno.vocabulary.VocabularyLinks;
import edu.pitt.dbmi.ccd.anno.vocabulary.attribute.AttributeResourceAssembler;
import edu.pitt.dbmi.ccd.db.entity.AnnotationData;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import static org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo;
import org.springframework.hateoas.mvc.ResourceAssemblerSupport;
import org.springframework.stereotype.Component;
import org.springframework.util.Assert;

/**
 * Assembles AnnotationData into AnnotationDataResource
 *
 * @author Mark Silvis (marksilvis@pitt.edu)
 */
@Component
public class AnnotationDataResourceAssembler
        extends ResourceAssemblerSupport<AnnotationData, AnnotationDataResource> {

    private final VocabularyLinks vocabularyLinks;
    private final AttributeResourceAssembler attributeResourceAssembler;

    @Autowired(required = true)
    public AnnotationDataResourceAssembler(VocabularyLinks vocabularyLinks,
            AttributeResourceAssembler attributeResourceAssembler) {
        super(AnnotationController.class, AnnotationDataResource.class);
        this.vocabularyLinks = vocabularyLinks;
        this.attributeResourceAssembler = attributeResourceAssembler;
    }

    /**
     * convert AnnotationData to AnnotationDataResource
     *
     * @param data entity
     * @return resource
     */
    @Override
    public AnnotationDataResource toResource(AnnotationData data) {
        AnnotationDataResource resource = createResourceWithId(data.getId(), data);
        Set<AnnotationDataResource> children = data.getSubData().stream().map(this::toResource)
                .collect(Collectors.toSet());
        resource.addSubData(children);
        if (data.getAttribute() != null) {
            resource.add(vocabularyLinks.attribute(data.getAttribute().getVocabulary(), data.getAttribute()));
        }
        resource.setAttributeResource(attributeResourceAssembler.toResource(data.getAttribute()));
        return resource;
    }

    /**
     * convert AnnotationDatas to AnnotationDataResources
     *
     * @param annotations entities
     * @return List of resources
     */
    @Override
    public List<AnnotationDataResource> toResources(Iterable<? extends AnnotationData> annotations)
            throws IllegalArgumentException {
        // Assert annotations is not empty
        Assert.isTrue(annotations.iterator().hasNext());
        return StreamSupport.stream(annotations.spliterator(), false).map(this::toResource)
                .collect(Collectors.toList());
    }

    /**
     * Creates a new annotation resource with a correct self link Added
     * vocabulary name to self link
     *
     * @param entity must not be {@literal null}.
     * @param id must not be {@literal null}.
     * @return resource
     */
    @Override
    protected AnnotationDataResource createResourceWithId(Object id, AnnotationData entity, Object... parameters)
            throws IllegalArgumentException {
        Assert.notNull(entity);
        Assert.notNull(id);

        AnnotationDataResource instance = instantiateResource(entity);
        instance.add(linkTo(AnnotationController.class, parameters).slash(entity.getAnnotation().getId() + "/data")
                .slash(id).withSelfRel());
        return instance;
    }

    /**
     * Instantiate AnnotationDataResource with non-default constructor
     *
     * @param annotation entity
     * @return resource
     */
    @Override
    protected AnnotationDataResource instantiateResource(AnnotationData annotation)
            throws IllegalArgumentException {
        Assert.notNull(annotation);
        try {
            return BeanUtils.instantiateClass(AnnotationDataResource.class.getConstructor(AnnotationData.class),
                    annotation);
        } catch (NoSuchMethodException ex) {
            ex.printStackTrace();
            return new AnnotationDataResource();
        }
    }
}