fujaba/NetworkParser

package de.uniks.networkparser.parser.differ;

import de.uniks.networkparser.graph.Association;
import de.uniks.networkparser.graph.AssociationTypes;
import de.uniks.networkparser.graph.Match;
import de.uniks.networkparser.interfaces.SendableEntityCreator;
import de.uniks.networkparser.parser.GraphMatcher;

public class AssociationChangeCondition extends MatchCondition {
    public AssociationChangeCondition() {
        changeConditions.add(new AssociationChangeRenameCondition());
        changeConditions.add(new AssociationChangeAddCondition());
        changeConditions.add(new AssociationChangeAddModifierCondition());
        changeConditions.add(new AssociationChangeRemoveModifierCondition());
        changeConditions.add(new AssociationChangeUpdateTypeCondition());
        changeConditions.add(new AssociationChangeUpdateCondition());
    }

    @Override
    protected boolean checkCondition(GraphMatcher matches, Match match) {
        if (match == null || matches == null) {
            return false;
        }
        Association association = (Association) match.getMatch();

        if (association.getType().equals(AssociationTypes.UNDIRECTIONAL)
                && association.getOther().getType().equals(AssociationTypes.EDGE)) {
            if (association.getClazz() != association.getOtherClazz()) {
                return false;
            }
        }

        return true;
    }

    @Override
    protected boolean calculateDiffs(GraphMatcher matches, Match match) {
        if (match == null || matches == null) {
            return false;
        }
        Association sourceAssociation = (Association) match.getMatch();
        Association otherAssociation = (Association) match.getOtherMatch().getMatch();

        if (addChange(matches, match, sourceAssociation, otherAssociation)) {
            MemberDiffer.executeCondition(SendableEntityCreator.NEW, changeConditions, match);
        } else {
            if (updateType(matches, match, sourceAssociation, otherAssociation)) {
                MemberDiffer.executeCondition(SendableEntityCreator.UPDATE, changeConditions, match);
            } else {
                MemberDiffer.executeCondition(SendableEntityCreator.UPDATE, changeConditions, match);
                MemberDiffer.executeCondition(SendableEntityCreator.REMOVE, changeConditions, match);
            }
        }
        return true;
    }

    private boolean addChange(GraphMatcher matches, Match match, Association sourceAssociation,
            Association otherAssociation) {
        if (match == null || matches == null) {
            return false;
        }
        if (matches.getMetaModel() != null && (match.isSourceMatch() || match.isMetaMatch())) {
            return false;
        }
        if (checkSimiliarNames(sourceAssociation, otherAssociation)) {
            return false;
        }

        return true;
    }

    private boolean updateType(GraphMatcher matches, Match match, Association sourceAssociation,
            Association otherAssociation) {
        if (match == null || matches == null) {
            return false;
        }
        return sourceAssociation.getOtherClazz().getName().equals(otherAssociation.getOtherClazz().getName()) == false
                || sourceAssociation.getClazz().getName().equals(otherAssociation.getClazz().getName()) == false
                || sourceAssociation.getType().equals(otherAssociation.getType()) == false;
    }

    private boolean checkSimiliarNames(Association sourceAssociation, Association otherAssociation) {
        if (sourceAssociation == null || otherAssociation == null || sourceAssociation.getType() == null) {
            return false;
        }
        if (sourceAssociation.getType().equals(AssociationTypes.UNDIRECTIONAL)
                || otherAssociation.getType().equals(AssociationTypes.UNDIRECTIONAL)) {
            return sourceAssociation.getName().equals(otherAssociation.getName());
        }

        return sourceAssociation.getOther().getName().equals(otherAssociation.getOther().getName());
    }

    @Override
    public String getAction() {
        return SendableEntityCreator.UPDATE;
    }
}