eionet.cr.web.util.columns.ReferringPredicatesColumn.java Source code

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Here is the source code for eionet.cr.web.util.columns.ReferringPredicatesColumn.java

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/*
 * The contents of this file are subject to the Mozilla Public
 *
 * License Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Content Registry 2.0.
 *
 * The Initial Owner of the Original Code is European Environment
 * Agency. Portions created by Tieto Eesti are Copyright
 * (C) European Environment Agency. All Rights Reserved.
 *
 * Contributor(s):
 * Jaanus Heinlaid, Tieto Eesti*/
package eionet.cr.web.util.columns;

import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.Map;

import org.apache.commons.lang.StringUtils;

import eionet.cr.dto.ObjectDTO;
import eionet.cr.dto.SubjectDTO;
import eionet.cr.util.Hashes;
import eionet.cr.util.Util;
import eionet.cr.web.action.factsheet.ReferencesActionBean;
import eionet.cr.web.util.JstlFunctions;

/**
 *
 * @author <a href="mailto:jaanus.heinlaid@tietoenator.com">Jaanus Heinlaid</a>
 *
 */
public class ReferringPredicatesColumn extends SearchResultColumn {

    /** */
    private ReferencesActionBean actionBean;
    private long referringToHash;

    /**
     *
     * @param actionBean
     */
    public ReferringPredicatesColumn(ReferencesActionBean actionBean) {

        this.actionBean = actionBean;

        referringToHash = actionBean.getAnonHash();
        if (referringToHash == 0 && !StringUtils.isBlank(actionBean.getUri())) {
            referringToHash = Hashes.spoHash(actionBean.getUri());
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see eionet.cr.web.util.search.SearchResultColumn#format(java.lang.Object)
     */
    @Override
    public String format(Object object) {

        if (object instanceof SubjectDTO) {

            SubjectDTO subjectDTO = (SubjectDTO) object;

            // Collect labels of all predicates pointing to referringToHash (ignore derived object values).

            LinkedHashSet<String> labels = new LinkedHashSet<String>();
            Map<String, Collection<ObjectDTO>> predicatesObjects = subjectDTO.getPredicates();
            if (predicatesObjects != null && !predicatesObjects.isEmpty()) {

                for (String predicate : predicatesObjects.keySet()) {

                    Collection<ObjectDTO> objects = predicatesObjects.get(predicate);
                    if (objects != null && !objects.isEmpty()) {

                        for (ObjectDTO objectDTO : objects) {

                            if (objectDTO.getSourceObjectHash() == 0 && objectDTO.getHash() == referringToHash) {

                                String predicateLabel = JstlFunctions
                                        .getPredicateLabel(actionBean.getPredicateLabels(), predicate);
                                labels.add(predicateLabel);
                            }
                        }
                    }
                }
            }

            // Return the above-found labels as a comma-separated list.
            return labels.isEmpty() ? StringUtils.EMPTY : Util.toCSV(labels);
        } else {
            return object == null ? StringUtils.EMPTY : object.toString();
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see eionet.cr.web.util.search.SearchResultColumn#getSortParamValue()
     */
    @Override
    public String getSortParamValue() {
        return getClass().getSimpleName();
    }
}