fr.mcc.ginco.audit.commands.HierarchyCommandBuilder.java Source code

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Here is the source code for fr.mcc.ginco.audit.commands.HierarchyCommandBuilder.java

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/**
 * Copyright or  or Copr. Ministre Franais charg de la Culture
 * et de la Communication (2013)
 * <p/>
 * contact.gincoculture_at_gouv.fr
 * <p/>
 * This software is a computer program whose purpose is to provide a thesaurus
 * management solution.
 * <p/>
 * This software is governed by the CeCILL license under French law and
 * abiding by the rules of distribution of free software. You can use,
 * modify and/ or redistribute the software under the terms of the CeCILL
 * license as circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 * <p/>
 * As a counterpart to the access to the source code and rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty and the software's author, the holder of the
 * economic rights, and the successive licensors have only limited liability.
 * <p/>
 * In this respect, the user's attention is drawn to the risks associated
 * with loading, using, modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean that it is complicated to manipulate, and that also
 * therefore means that it is reserved for developers and experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systemsand/or
 * data to be ensured and, more generally, to use and operate it in the
 * same conditions as regards security.
 * <p/>
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL license and that you accept its terms.
 */
package fr.mcc.ginco.audit.commands;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.inject.Inject;
import javax.inject.Named;

import org.apache.commons.collections.ListUtils;
import org.apache.commons.lang3.StringEscapeUtils;
import org.springframework.stereotype.Service;

import fr.mcc.ginco.beans.ThesaurusConcept;

/**
 * Component in charge of building CommandLine relatives to hierarchy changes
 *
 */
@Service("hierarchyCommandBuilder")
public class HierarchyCommandBuilder {

    @Inject
    @Named("mistralStructuresBuilder")
    private MistralStructuresBuilder mistralStructuresBuilder;

    /**
     * Builds the list of command lines for hierarchy changes between two
     * revisions
     *
     * @param previousConcepts
     * @param currentConcepts
     * @param oldRevision
     * @param currentRevision
     * @param lang
     * @return
     */
    public List<CommandLine> buildHierarchyChanges(List<ThesaurusConcept> previousConcepts,
            List<ThesaurusConcept> currentConcepts, Number oldRevision, Number currentRevision, String lang) {
        List<CommandLine> termsOperations = new ArrayList<CommandLine>();

        Map<String, List<String>> previousHierarchies = mistralStructuresBuilder
                .buildHierarchyStructure(previousConcepts, oldRevision, lang);
        Map<String, List<String>> currentHierarchies = mistralStructuresBuilder
                .buildHierarchyStructure(currentConcepts, currentRevision, lang);
        for (String previousParentConceptId : previousHierarchies.keySet()) {
            if (currentHierarchies.containsKey(previousParentConceptId)) {
                // Concept still exists
                if (!ListUtils.isEqualList(previousHierarchies.get(previousParentConceptId),
                        currentHierarchies.get(previousParentConceptId))) {
                    // but hierarchy has changed
                    for (String oldChild : previousHierarchies.get(previousParentConceptId)) {
                        if (!currentHierarchies.get(previousParentConceptId).contains(oldChild)) {
                            // child removed
                            CommandLine childRemovedLine = new CommandLine();
                            childRemovedLine.setValue(CommandLine.HIERARCHY_REMOVED
                                    + StringEscapeUtils.unescapeXml(oldChild) + CommandLine.HIERARCHY
                                    + StringEscapeUtils.unescapeXml(previousParentConceptId));
                            termsOperations.add(childRemovedLine);
                        }
                    }
                    for (String newChild : currentHierarchies.get(previousParentConceptId)) {
                        if (!previousHierarchies.get(previousParentConceptId).contains(newChild)) {
                            // child added
                            CommandLine childAddedLine = new CommandLine();
                            childAddedLine.setValue(StringEscapeUtils.unescapeXml(newChild) + CommandLine.HIERARCHY
                                    + StringEscapeUtils.unescapeXml(previousParentConceptId));
                            termsOperations.add(childAddedLine);
                        }
                    }
                }
            } else {
                // Concept does not exist anymore, remove all old hierarchies
                for (String oldChild : previousHierarchies.get(previousParentConceptId)) {
                    CommandLine childRemovedLine = new CommandLine();
                    childRemovedLine.setValue(CommandLine.HIERARCHY_REMOVED
                            + StringEscapeUtils.unescapeXml(oldChild) + CommandLine.HIERARCHY
                            + StringEscapeUtils.unescapeXml(previousParentConceptId));
                    termsOperations.add(childRemovedLine);
                }
            }
        }

        for (String currentParentConceptId : currentHierarchies.keySet()) {
            if (!previousHierarchies.containsKey(currentParentConceptId)) {
                // Add all new hierarchies
                for (String child : currentHierarchies.get(currentParentConceptId)) {
                    CommandLine hierarchyAddedLine = new CommandLine();
                    hierarchyAddedLine.setValue(StringEscapeUtils.unescapeXml(child) + CommandLine.HIERARCHY
                            + StringEscapeUtils.unescapeXml(currentParentConceptId));
                    termsOperations.add(hierarchyAddedLine);
                }
            }

        }
        return termsOperations;

    }
}