nl.knaw.huygens.tei.ElementAnalyzerVisitor.java Source code

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Here is the source code for nl.knaw.huygens.tei.ElementAnalyzerVisitor.java

Source

package nl.knaw.huygens.tei;

/*
 * #%L
 * VisiTEI
 * =======
 * Copyright (C) 2011 - 2016 Huygens ING
 * =======
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import java.util.Map;

import com.google.common.collect.Maps;

/**
 * Visitor for analyzing the elements used in a document.
 */
public class ElementAnalyzerVisitor extends DefaultVisitor {

    private static class Count {
        String name;
        int count;

        public Count(String name) {
            this.name = name;
            count = 0;
        }
    }

    private final Map<String, Count> counts;

    public ElementAnalyzerVisitor() {
        counts = Maps.newTreeMap();
    }

    public void register(String name) {
        Count item = counts.get(name);
        if (item == null) {
            item = new Count(name);
            counts.put(name, item);
        }
        item.count++;
    }

    public void displayCounts() {
        for (Count count : counts.values()) {
            System.out.printf("%-20s %10d%n", count.name, count.count);
        }
    }

    @Override
    public Traversal enterElement(Element element) {
        if (element.hasType()) {
            register(element.getName() + "-t:" + element.getType());
        } else if (element.hasRendition()) {
            register(element.getName() + "-r:" + element.getRendition());
        } else {
            register(element.getName());
        }
        return Traversal.NEXT;
    }

}