/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.core.joran.event.stax;

import ch.qos.logback.core.joran.spi.ElementPath;

import javax.xml.stream.Location;
import javax.xml.stream.events.Attribute;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class StartEvent extends StaxEvent {

    List<Attribute> attributes;
    public ElementPath elementPath;

    StartEvent(ElementPath elementPath, String name, Iterator<Attribute> attributeIterator, Location location) {
        super(name, location);
        populateAttributes(attributeIterator);
        this.elementPath = elementPath;
    }

    private void populateAttributes(Iterator<Attribute> attributeIterator) {
        while (attributeIterator.hasNext()) {
            if (attributes == null) {
                attributes = new ArrayList<Attribute>(2);
            }
            attributes.add(attributeIterator.next());
        }
    }

    public ElementPath getElementPath() {
        return elementPath;
    }

    public List<Attribute> getAttributeList() {
        return attributes;
    }

    Attribute getAttributeByName(String name) {
        if (attributes == null)
            return null;

        for (Attribute attr : attributes) {
            if (name.equals(attr.getName().getLocalPart()))
                return attr;
        }
        return null;
    }

    @Override
    public String toString() {
        return "StartEvent(" + getName() + ")  [" + location.getLineNumber() + "," + location.getColumnNumber() + "]";
    }
}