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package io.legaldocml.akn.element;

import io.legaldocml.akn.attribute.Core;
import io.legaldocml.akn.attribute.IdReq;
import io.legaldocml.akn.util.AknList;
import io.legaldocml.akn.visitor.AknVisitor;
import io.legaldocml.io.XmlReader;
import io.legaldocml.io.XmlWriter;
import io.legaldocml.io.impl.Buffers;

import java.io.IOException;

import static io.legaldocml.akn.AknElements.TEMPORAL_GROUP;
import static io.legaldocml.akn.AknElements.TIME_INTERVAL;

/**
 *
 *  *   
 *     
 *       
 *         
 *       
 *       
 *       
 *     
 *   
 * 
 *
 * @author Jacques Militello
 */
public final class TemporalGroup extends AbstractId implements Core, IdReq {

    /**
     * Memory address.
     */
    private static final long ADDRESS_TEMPORAL_GROUP = Buffers.address(TEMPORAL_GROUP);

    // Mandatory (min 1).
    private final AknList elements = new AknList<>(new TimeInterval[4]);

    /**
     * {@inheritDoc}
     */
    @Override
    public void write(XmlWriter writer) throws IOException {
        writer.writeStart(ADDRESS_TEMPORAL_GROUP, 13);
        IdReq.super.write(writer);
        Core.super.write(writer);
        this.elements.write(writer);
        writer.writeEnd(ADDRESS_TEMPORAL_GROUP, 13);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void read(XmlReader reader) {
        super.read(reader);
        reader.nextStartOrEndElement();
        if (reader.getQName().equalsLocalName(TIME_INTERVAL)) {
            TimeInterval timeInterval;
            do {
                timeInterval = new TimeInterval();
                timeInterval.read(reader);
                this.elements.add(timeInterval);
                reader.nextStartOrEndElement();
            } while (reader.getQName().equalsLocalName(TIME_INTERVAL));
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String name() {
        return TEMPORAL_GROUP;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void accept(AknVisitor visitor) {
        if (visitor.visitEnter(this)) {
            elements.accept(visitor);
            visitor.visitLeave(this);
        }
    }

}